1 介绍

1.1 定义

01.技术概述
    a.基本概念
        testify是Go语言生态系统中最流行的测试工具库,由Stretchr团队开发和维护。它提供了一套完整的测试工具集,包括断言assertion、模拟mock和测试套件suite等功能,旨在简化Go语言的测试代码编写,提高测试代码的可读性和可维护性。testify已经成为Go社区事实上的测试标准库扩展。
    b.核心定位
        testify定位为Go标准testing包的增强工具库,而非替代品。它在保持Go语言简洁哲学的基础上,提供了更丰富的断言方法、强大的mock功能和灵活的测试套件组织能力。testify与标准库完全兼容,可以无缝集成到现有的测试框架中。
    c.发展历程
        testify于2012年首次发布,经过十多年的发展,已经成为GitHub上Star数量最多的Go测试库之一,拥有超过2万个Star。项目活跃度高,社区贡献者众多,版本迭代稳定,是Go语言测试领域最成熟的解决方案之一。

02.设计理念
    a.简洁优雅
        a.链式断言
            testify提供流畅的链式断言API,让测试代码读起来更像自然语言,显著提高了代码的可读性。每个断言方法都返回布尔值,支持灵活的错误处理。
        b.代码示例
            ---
            // testify基础示例:简单的断言测试
            package example

            import (
                "testing"
                "github.com/stretchr/testify/assert"
            )

            func Add(a, b int) int {
                return a + b
            }

            // 测试函数:使用testify的assert包
            func TestAdd(t *testing.T) {
                // 创建断言对象
                assert := assert.New(t)

                // 基础相等断言
                result := Add(2, 3)
                assert.Equal(5, result, "2 + 3 应该等于 5")

                // 不等断言
                assert.NotEqual(6, result, "结果不应该等于 6")

                // 大于断言
                assert.Greater(result, 4, "结果应该大于 4")

                // 零值断言
                assert.NotZero(result, "结果不应该是零值")
            }

            // 测试函数:使用require包(断言失败立即终止)
            func TestAddWithRequire(t *testing.T) {
                require := require.New(t)

                result := Add(2, 3)
                // require断言失败会立即终止测试
                require.Equal(5, result, "2 + 3 必须等于 5")

                // 如果上面的断言失败,这行代码不会执行
                require.Positive(result, "结果必须是正数")
            }
            ---
    b.功能完整
        a.全面的断言方法
            testify提供超过100个断言方法,覆盖相等性判断、类型检查、集合操作、错误处理、panic捕获等各种测试场景,几乎涵盖了所有常见的测试需求。
        b.强大的Mock能力
            内置完整的mock框架,支持接口mock、方法期望设置、参数匹配、返回值控制和调用验证。相比手写mock对象,testify的mock功能大大简化了依赖隔离的测试代码编写。
        c.灵活的测试套件
            提供suite包实现测试套件功能,支持SetUp和TearDown钩子函数、测试夹具管理、子测试组织等高级特性,帮助开发者构建结构化的测试代码。

03.核心价值
    a.提升开发效率
        a.减少样板代码
            使用testify可以大幅减少测试代码中的样板代码。传统的Go测试需要大量的if判断和t.Errorf调用,而testify通过简洁的断言API将多行代码压缩为一行。
        b.对比示例
            ---
            // 对比:标准库 vs testify
            package example

            import (
                "testing"
                "github.com/stretchr/testify/assert"
            )

            // 使用标准库testing的测试(冗长)
            func TestWithStandardLibrary(t *testing.T) {
                result := Add(2, 3)

                if result != 5 {
                    t.Errorf("Add(2, 3) = %d; want 5", result)
                }

                if result == 6 {
                    t.Errorf("Add(2, 3) should not equal 6")
                }

                if result <= 4 {
                    t.Errorf("Add(2, 3) = %d; want > 4", result)
                }
            }

            // 使用testify的测试(简洁)
            func TestWithTestify(t *testing.T) {
                result := Add(2, 3)

                // 三个断言,代码清晰简洁
                assert.Equal(t, 5, result)
                assert.NotEqual(t, 6, result)
                assert.Greater(t, result, 4)
            }

            // 更复杂的场景:切片比较
            func TestSliceComparison(t *testing.T) {
                expected := []int{1, 2, 3}
                actual := []int{1, 2, 3}

                // 标准库需要手动遍历比较
                if len(expected) != len(actual) {
                    t.Errorf("length mismatch")
                }
                for i := range expected {
                    if expected[i] != actual[i] {
                        t.Errorf("element %d: got %d, want %d", i, actual[i], expected[i])
                    }
                }

                // testify一行搞定
                assert.Equal(t, expected, actual)
            }
            ---
    b.提高代码质量
        a.清晰的错误信息
            testify在断言失败时提供详细的错误信息,包括期望值、实际值和差异对比,帮助开发者快速定位问题。支持自定义错误消息,进一步增强调试体验。
        b.强制最佳实践
            通过require包强制关键断言必须通过,避免测试在错误状态下继续执行。通过mock验证强制检查依赖调用,确保测试覆盖了所有关键路径。
    c.促进测试文化
        降低测试代码编写门槛,让开发者更愿意编写测试。提供统一的测试代码风格,提高团队协作效率。丰富的功能支持促进TDD开发模式的实践。

1.2 核心概念

01.断言系统
    a.assert包
        a.功能定位
            assert包提供非致命性断言,断言失败时会记录错误信息但不会终止测试执行。适用于需要检查多个条件的场景,即使某个断言失败,后续断言仍会继续执行,帮助一次性发现多个问题。
        b.使用方式
            ---
            // assert包使用示例:非致命性断言
            package example

            import (
                "testing"
                "github.com/stretchr/testify/assert"
            )

            func TestAssertExample(t *testing.T) {
                // 方式1:每次调用都传递t参数
                assert.Equal(t, 5, Add(2, 3), "基础加法测试")
                assert.NotNil(t, "hello")

                // 方式2:创建断言对象,避免重复传递t
                a := assert.New(t)
                a.Equal(5, Add(2, 3))
                a.NotNil("hello")

                // 即使前面的断言失败,这里仍会执行
                a.True(true, "这个断言会执行")
            }

            // 多个断言的测试示例
            func TestMultipleAssertions(t *testing.T) {
                a := assert.New(t)

                user := GetUser(1)

                // 检查多个字段,即使某个失败也继续检查
                a.NotNil(user, "用户不应为nil")
                a.Equal("Alice", user.Name, "用户名应为Alice")
                a.Equal(25, user.Age, "年龄应为25")
                a.True(user.Active, "用户应处于激活状态")

                // 所有断言都会执行,最后统一报告失败信息
            }

            type User struct {
                Name   string
                Age    int
                Active bool
            }

            func GetUser(id int) *User {
                return &User{Name: "Alice", Age: 25, Active: true}
            }
            ---
    b.require包
        a.功能定位
            require包提供致命性断言,断言失败时会立即终止当前测试函数的执行。适用于前置条件检查,如果前置条件不满足,继续执行测试没有意义且可能导致panic。
        b.使用场景
            ---
            // require包使用示例:致命性断言
            package example

            import (
                "testing"
                "github.com/stretchr/testify/require"
                "database/sql"
            )

            func TestRequireExample(t *testing.T) {
                r := require.New(t)

                // 数据库连接必须成功,否则后续测试无法进行
                db, err := sql.Open("mysql", "connection_string")
                r.NoError(err, "数据库连接必须成功")
                r.NotNil(db, "数据库对象不能为nil")

                // 如果上面的require失败,这里的代码不会执行
                defer db.Close()

                // 查询必须成功
                rows, err := db.Query("SELECT * FROM users")
                r.NoError(err)
                defer rows.Close()

                // 至少要有一条记录
                r.True(rows.Next(), "至少应该有一条用户记录")
            }

            // require vs assert 选择示例
            func TestRequireVsAssert(t *testing.T) {
                r := require.New(t)
                a := assert.New(t)

                // 使用require检查前置条件
                config := LoadConfig()
                r.NotNil(config, "配置文件必须加载成功")

                // 使用assert检查多个配置项
                a.Equal("localhost", config.Host)
                a.Equal(3306, config.Port)
                a.Equal("utf8mb4", config.Charset)

                // 即使某个配置项不对,也能看到所有配置的实际值
            }

            type Config struct {
                Host    string
                Port    int
                Charset string
            }

            func LoadConfig() *Config {
                return &Config{Host: "localhost", Port: 3306, Charset: "utf8mb4"}
            }
            ---

02.Mock系统
    a.Mock对象
        a.基本原理
            testify的mock包提供了一套完整的模拟对象框架,通过继承mock.Mock结构体并实现接口方法,可以轻松创建mock对象。mock对象可以设置方法调用期望、模拟返回值、验证调用次数和参数,实现完全的依赖隔离。
        b.工作流程
            Mock测试的典型流程包括三个步骤:定义期望On、执行被测代码、验证调用AssertExpectations。这种结构化的流程确保测试的完整性和可靠性。
        c.代码示例
            ---
            // Mock对象使用示例
            package example

            import (
                "testing"
                "github.com/stretchr/testify/mock"
                "github.com/stretchr/testify/assert"
            )

            // 定义接口
            type UserRepository interface {
                GetUserByID(id int) (*User, error)
                SaveUser(user *User) error
            }

            // 创建Mock对象(继承mock.Mock)
            type MockUserRepository struct {
                mock.Mock
            }

            // 实现接口方法
            func (m *MockUserRepository) GetUserByID(id int) (*User, error) {
                // 调用mock框架记录调用并返回预设值
                args := m.Called(id)
                return args.Get(0).(*User), args.Error(1)
            }

            func (m *MockUserRepository) SaveUser(user *User) error {
                args := m.Called(user)
                return args.Error(0)
            }

            // 被测试的服务
            type UserService struct {
                repo UserRepository
            }

            func (s *UserService) GetUserName(id int) (string, error) {
                user, err := s.repo.GetUserByID(id)
                if err != nil {
                    return "", err
                }
                return user.Name, nil
            }

            // Mock测试示例
            func TestUserService_GetUserName(t *testing.T) {
                // 1. 创建mock对象
                mockRepo := new(MockUserRepository)

                // 2. 设置期望:当调用GetUserByID(1)时返回指定用户
                expectedUser := &User{Name: "Alice", Age: 25}
                mockRepo.On("GetUserByID", 1).Return(expectedUser, nil)

                // 3. 创建被测服务,注入mock对象
                service := &UserService{repo: mockRepo}

                // 4. 执行测试
                name, err := service.GetUserName(1)

                // 5. 断言结果
                assert.NoError(t, err)
                assert.Equal(t, "Alice", name)

                // 6. 验证mock对象的方法被正确调用
                mockRepo.AssertExpectations(t)
            }
            ---
    b.参数匹配器
        a.功能说明
            testify提供多种参数匹配器,包括精确匹配、类型匹配mock.Anything、自定义匹配mock.MatchedBy等。参数匹配器增强了mock的灵活性,可以处理复杂的参数验证场景。
        b.使用示例
            ---
            // 参数匹配器示例
            package example

            import (
                "testing"
                "github.com/stretchr/testify/mock"
                "github.com/stretchr/testify/assert"
            )

            func TestParameterMatchers(t *testing.T) {
                mockRepo := new(MockUserRepository)

                // 精确匹配:只匹配特定参数
                mockRepo.On("GetUserByID", 1).Return(&User{Name: "Alice"}, nil)

                // Anything匹配:匹配任意参数
                mockRepo.On("GetUserByID", mock.Anything).Return(&User{Name: "Default"}, nil)

                // AnythingOfType匹配:匹配特定类型
                mockRepo.On("SaveUser", mock.AnythingOfType("*example.User")).Return(nil)

                // MatchedBy自定义匹配:使用函数进行复杂匹配
                mockRepo.On("GetUserByID", mock.MatchedBy(func(id int) bool {
                    return id > 0 && id < 1000
                })).Return(&User{Name: "ValidID"}, nil)

                // 测试执行
                user1, _ := mockRepo.GetUserByID(1)
                assert.Equal(t, "Alice", user1.Name)

                user2, _ := mockRepo.GetUserByID(999)
                assert.Equal(t, "ValidID", user2.Name)

                err := mockRepo.SaveUser(&User{Name: "Bob"})
                assert.NoError(t, err)

                mockRepo.AssertExpectations(t)
            }
            ---

03.测试套件
    a.Suite结构
        a.基本概念
            testify的suite包提供测试套件功能,通过将测试方法组织到结构体中,可以实现测试的结构化管理。Suite支持SetUp和TearDown钩子函数,方便管理测试的前置和后置操作。
        b.核心方法
            Suite提供多个生命周期钩子:SetupSuite在整个套件开始前执行一次,TearDownSuite在套件结束后执行一次,SetupTest在每个测试方法前执行,TearDownTest在每个测试方法后执行。这种分层的生命周期管理使测试更加规范和可控。
        c.代码示例
            ---
            // 测试套件示例
            package example

            import (
                "testing"
                "github.com/stretchr/testify/suite"
                "github.com/stretchr/testify/assert"
            )

            // 定义测试套件结构体
            type UserTestSuite struct {
                suite.Suite
                repo    UserRepository
                service *UserService
            }

            // SetupSuite:在整个套件开始前执行一次
            func (s *UserTestSuite) SetupSuite() {
                // 初始化数据库连接等全局资源
                s.repo = NewUserRepository()
            }

            // TearDownSuite:在套件结束后执行一次
            func (s *UserTestSuite) TearDownSuite() {
                // 清理全局资源
                s.repo.Close()
            }

            // SetupTest:在每个测试方法前执行
            func (s *UserTestSuite) SetupTest() {
                // 初始化测试数据
                s.service = &UserService{repo: s.repo}
            }

            // TearDownTest:在每个测试方法后执行
            func (s *UserTestSuite) TearDownTest() {
                // 清理测试数据
                s.repo.CleanTestData()
            }

            // 测试方法:必须以Test开头
            func (s *UserTestSuite) TestGetUserName() {
                name, err := s.service.GetUserName(1)
                assert.NoError(s.T(), err)
                assert.Equal(s.T(), "Alice", name)
            }

            func (s *UserTestSuite) TestSaveUser() {
                user := &User{Name: "Bob", Age: 30}
                err := s.repo.SaveUser(user)
                assert.NoError(s.T(), err)
            }

            // 运行测试套件
            func TestUserTestSuite(t *testing.T) {
                suite.Run(t, new(UserTestSuite))
            }

            // 辅助函数(示例)
            func NewUserRepository() UserRepository {
                return &MockUserRepository{}
            }

            func (m *MockUserRepository) Close() {}
            func (m *MockUserRepository) CleanTestData() {}
            ---
    b.测试组织
        Suite允许将相关测试组织在一起,共享测试夹具和辅助方法。通过套件继承可以实现测试代码的复用,适合大型项目的测试管理。

1.3 优缺点

01.优势分析
    a.简化测试代码
        a.减少代码量
            相比使用Go标准库编写测试,testify可以将测试代码量减少50%以上。通过简洁的断言API和自动化的错误信息生成,大幅降低了测试代码的复杂度。
        b.对比示例
            ---
            // 标准库 vs testify 代码量对比
            package example

            import (
                "testing"
                "github.com/stretchr/testify/assert"
                "reflect"
            )

            // 场景1:基础断言对比
            func TestBasicStandardLib(t *testing.T) {
                result := Add(2, 3)
                if result != 5 {
                    t.Errorf("Add(2, 3) = %d; want 5", result)
                }
                if result == 0 {
                    t.Errorf("Add(2, 3) should not be zero")
                }
                if result <= 4 {
                    t.Errorf("Add(2, 3) = %d; should be > 4", result)
                }
            }

            func TestBasicTestify(t *testing.T) {
                result := Add(2, 3)
                assert.Equal(t, 5, result)
                assert.NotZero(t, result)
                assert.Greater(t, result, 4)
            }

            // 场景2:复杂结构体对比
            func TestStructStandardLib(t *testing.T) {
                expected := &User{Name: "Alice", Age: 25, Active: true}
                actual := GetUser(1)

                if actual == nil {
                    t.Fatal("user should not be nil")
                }
                if actual.Name != expected.Name {
                    t.Errorf("Name = %s; want %s", actual.Name, expected.Name)
                }
                if actual.Age != expected.Age {
                    t.Errorf("Age = %d; want %d", actual.Age, expected.Age)
                }
                if actual.Active != expected.Active {
                    t.Errorf("Active = %v; want %v", actual.Active, expected.Active)
                }
            }

            func TestStructTestify(t *testing.T) {
                expected := &User{Name: "Alice", Age: 25, Active: true}
                actual := GetUser(1)

                assert.Equal(t, expected, actual)
            }

            // 场景3:切片对比
            func TestSliceStandardLib(t *testing.T) {
                expected := []int{1, 2, 3, 4, 5}
                actual := GetNumbers()

                if len(actual) != len(expected) {
                    t.Fatalf("length = %d; want %d", len(actual), len(expected))
                }
                if !reflect.DeepEqual(expected, actual) {
                    t.Errorf("slice = %v; want %v", actual, expected)
                }
                for i, v := range expected {
                    if actual[i] != v {
                        t.Errorf("element[%d] = %d; want %d", i, actual[i], v)
                    }
                }
            }

            func TestSliceTestify(t *testing.T) {
                expected := []int{1, 2, 3, 4, 5}
                actual := GetNumbers()

                assert.Equal(t, expected, actual)
                assert.ElementsMatch(t, expected, actual)
            }

            func GetNumbers() []int {
                return []int{1, 2, 3, 4, 5}
            }
            ---
    b.丰富的断言方法
        a.全面覆盖
            testify提供超过100个断言方法,涵盖基础比较Equal、NotEqual,类型检查IsType、Implements,集合操作Contains、ElementsMatch,错误处理Error、NoError,panic捕获Panics、NotPanics等各种场景。
        b.常用断言分类
            相等性断言包括Equal、NotEqual、Same、NotSame;数值断言包括Greater、GreaterOrEqual、Less、LessOrEqual、Positive、Negative;字符串断言包括Contains、NotContains、Regexp、NotRegexp;集合断言包括Len、Empty、Contains、ElementsMatch、Subset。
    c.强大的Mock能力
        a.完整的Mock框架
            testify提供完整的mock功能,无需第三方工具即可实现接口mock。支持方法期望设置、参数匹配、返回值控制、调用次数验证、调用顺序验证等高级特性。
        b.Mock示例
            ---
            // 高级Mock功能示例
            package example

            import (
                "testing"
                "github.com/stretchr/testify/mock"
                "github.com/stretchr/testify/assert"
                "errors"
            )

            // 场景1:调用次数验证
            func TestCallTimes(t *testing.T) {
                mockRepo := new(MockUserRepository)

                // 期望方法被调用1次
                mockRepo.On("GetUserByID", 1).Return(&User{Name: "Alice"}, nil).Once()

                // 期望方法被调用2次
                mockRepo.On("SaveUser", mock.Anything).Return(nil).Twice()

                service := &UserService{repo: mockRepo}

                // 调用1次GetUserByID
                service.GetUserName(1)

                // 调用2次SaveUser
                mockRepo.SaveUser(&User{Name: "Bob"})
                mockRepo.SaveUser(&User{Name: "Charlie"})

                // 验证调用次数
                mockRepo.AssertExpectations(t)
                mockRepo.AssertNumberOfCalls(t, "GetUserByID", 1)
                mockRepo.AssertNumberOfCalls(t, "SaveUser", 2)
            }

            // 场景2:不同参数返回不同值
            func TestDifferentReturns(t *testing.T) {
                mockRepo := new(MockUserRepository)

                // 不同ID返回不同用户
                mockRepo.On("GetUserByID", 1).Return(&User{Name: "Alice"}, nil)
                mockRepo.On("GetUserByID", 2).Return(&User{Name: "Bob"}, nil)
                mockRepo.On("GetUserByID", 999).Return(nil, errors.New("not found"))

                user1, err1 := mockRepo.GetUserByID(1)
                assert.NoError(t, err1)
                assert.Equal(t, "Alice", user1.Name)

                user2, err2 := mockRepo.GetUserByID(2)
                assert.NoError(t, err2)
                assert.Equal(t, "Bob", user2.Name)

                user3, err3 := mockRepo.GetUserByID(999)
                assert.Error(t, err3)
                assert.Nil(t, user3)

                mockRepo.AssertExpectations(t)
            }

            // 场景3:使用Run自定义行为
            func TestCustomBehavior(t *testing.T) {
                mockRepo := new(MockUserRepository)

                callCount := 0
                mockRepo.On("GetUserByID", mock.Anything).Run(func(args mock.Arguments) {
                    callCount++
                    id := args.Int(0)
                    t.Logf("GetUserByID called with id=%d, total calls=%d", id, callCount)
                }).Return(&User{Name: "Dynamic"}, nil)

                mockRepo.GetUserByID(1)
                mockRepo.GetUserByID(2)
                mockRepo.GetUserByID(3)

                assert.Equal(t, 3, callCount)
                mockRepo.AssertExpectations(t)
            }

            // 场景4:测试超时场景
            func TestTimeout(t *testing.T) {
                mockRepo := new(MockUserRepository)

                // 模拟超时错误
                mockRepo.On("GetUserByID", mock.Anything).
                    WaitUntil(time.After(100 * time.Millisecond)).
                    Return(nil, errors.New("timeout"))

                start := time.Now()
                _, err := mockRepo.GetUserByID(1)
                duration := time.Since(start)

                assert.Error(t, err)
                assert.GreaterOrEqual(t, duration, 100*time.Millisecond)
                mockRepo.AssertExpectations(t)
            }
            ---
    d.良好的测试组织
        suite包提供结构化的测试组织能力,支持SetUp/TearDown钩子、测试夹具管理、子测试分组等功能。相比零散的测试函数,suite让测试代码更加模块化和可维护。

02.局限性分析
    a.学习成本
        a.API数量庞大
            testify提供超过100个断言方法和多个包assert、require、mock、suite、http,初学者需要时间熟悉各个API的用途和差异。不过常用的断言方法只有20个左右,掌握核心API即可应对大部分场景。
        b.Mock理解门槛
            Mock概念对测试新手来说有一定理解难度,需要理解测试替身、依赖注入、期望设置等概念。建议从简单的断言开始,逐步学习mock和suite高级功能。
    b.性能开销
        a.反射使用
            testify的断言实现大量使用反射进行深度比较和类型检查,在高频调用场景下可能带来性能开销。不过对于绝大多数测试场景,这点性能开销可以忽略不计。
        b.基准测试对比
            ---
            // 性能对比基准测试
            package example

            import (
                "testing"
                "github.com/stretchr/testify/assert"
            )

            // 标准库断言性能
            func BenchmarkStandardLibAssertion(b *testing.B) {
                for i := 0; i < b.N; i++ {
                    result := Add(2, 3)
                    if result != 5 {
                        b.Errorf("unexpected result")
                    }
                }
            }

            // testify断言性能
            func BenchmarkTestifyAssertion(b *testing.B) {
                for i := 0; i < b.N; i++ {
                    result := Add(2, 3)
                    assert.Equal(b, 5, result)
                }
            }

            // 复杂对象深度比较性能
            func BenchmarkDeepEqual(b *testing.B) {
                user1 := &User{Name: "Alice", Age: 25, Active: true}
                user2 := &User{Name: "Alice", Age: 25, Active: true}

                b.Run("StandardLib", func(b *testing.B) {
                    for i := 0; i < b.N; i++ {
                        if user1.Name != user2.Name ||
                           user1.Age != user2.Age ||
                           user1.Active != user2.Active {
                            b.Errorf("not equal")
                        }
                    }
                })

                b.Run("Testify", func(b *testing.B) {
                    for i := 0; i < b.N; i++ {
                        assert.Equal(b, user1, user2)
                    }
                })
            }
            // 结果:testify比标准库慢约2-3倍,但绝对时间仍在纳秒级
            ---
    c.依赖管理
        testify作为第三方库需要通过go mod管理依赖,增加了项目的外部依赖。不过testify本身非常稳定,版本兼容性好,升级风险低。
    d.过度使用风险
        a.断言滥用
            过度使用断言可能导致测试代码臃肿,一个测试函数包含几十个断言会降低可读性。建议遵循单一职责原则,每个测试函数只测试一个行为。
        b.Mock滥用
            过度使用mock可能导致测试与实现耦合过紧,实现细节的改变会导致大量测试失败。应该只mock外部依赖接口、数据库、网络请求等,而不是mock内部逻辑。

03.适用场景评估
    a.最佳适用场景
        a.单元测试
            testify最适合编写单元测试,丰富的断言方法和强大的mock能力能够快速验证函数行为和隔离依赖。特别适合测试业务逻辑层、服务层代码。
        b.API测试
            testify的http包提供HTTP测试工具,配合httptest包可以轻松测试HTTP处理器和RESTful API。适合测试Web应用、微服务接口。
        c.集成测试
            suite包的SetUp/TearDown机制非常适合管理集成测试的环境准备和清理。可以在SetupSuite中初始化数据库、启动服务,在TearDownSuite中清理资源。
        d.TDD开发
            testify简洁的API降低了编写测试的门槛,鼓励开发者采用TDD测试驱动开发模式。先写测试再写实现,提高代码质量。
    b.不太适合的场景
        a.端到端测试
            对于需要浏览器自动化的端到端测试,testify不是最佳选择。这类测试应该使用Selenium、Cypress等专业工具。
        b.性能测试
            虽然testify可以配合Go的基准测试使用,但对于复杂的性能测试和压力测试,建议使用专业工具如wrk、ab、JMeter等。
        c.极简项目
            对于非常小型的项目或脚本,引入testify可能过于重量级。如果只需要几个简单的相等性检查,使用标准库testing包更简单。

1.4 使用场景

01.单元测试场景
    a.业务逻辑测试
        a.场景描述
            业务逻辑层是应用的核心,包含各种业务规则、数据验证、计算逻辑等。testify的断言能力和mock功能可以快速验证业务逻辑的正确性,同时隔离外部依赖如数据库、缓存、第三方API等。
        b.实战示例
            ---
            // 业务逻辑测试示例:订单处理服务
            package business

            import (
                "testing"
                "github.com/stretchr/testify/assert"
                "github.com/stretchr/testify/mock"
                "errors"
            )

            // 订单服务接口
            type OrderService struct {
                orderRepo    OrderRepository
                paymentRepo  PaymentRepository
                notification NotificationService
            }

            // 创建订单业务逻辑
            func (s *OrderService) CreateOrder(userID int, items []OrderItem, amount float64) (*Order, error) {
                // 1. 验证金额
                if amount <= 0 {
                    return nil, errors.New("订单金额必须大于0")
                }

                // 2. 验证商品列表
                if len(items) == 0 {
                    return nil, errors.New("订单至少包含一个商品")
                }

                // 3. 创建订单
                order := &Order{
                    UserID: userID,
                    Items:  items,
                    Amount: amount,
                    Status: "pending",
                }

                // 4. 保存订单
                err := s.orderRepo.Save(order)
                if err != nil {
                    return nil, err
                }

                // 5. 发送通知
                s.notification.Send(userID, "订单创建成功")

                return order, nil
            }

            // Mock对象定义
            type MockOrderRepository struct {
                mock.Mock
            }

            func (m *MockOrderRepository) Save(order *Order) error {
                args := m.Called(order)
                return args.Error(0)
            }

            type MockPaymentRepository struct {
                mock.Mock
            }

            type MockNotificationService struct {
                mock.Mock
            }

            func (m *MockNotificationService) Send(userID int, message string) error {
                args := m.Called(userID, message)
                return args.Error(0)
            }

            // 测试用例:成功创建订单
            func TestCreateOrder_Success(t *testing.T) {
                // 准备mock对象
                mockOrderRepo := new(MockOrderRepository)
                mockNotification := new(MockNotificationService)

                // 设置期望
                mockOrderRepo.On("Save", mock.AnythingOfType("*business.Order")).Return(nil)
                mockNotification.On("Send", 1, "订单创建成功").Return(nil)

                // 创建服务
                service := &OrderService{
                    orderRepo:    mockOrderRepo,
                    notification: mockNotification,
                }

                // 执行测试
                items := []OrderItem{{ProductID: 1, Quantity: 2, Price: 50.0}}
                order, err := service.CreateOrder(1, items, 100.0)

                // 断言结果
                assert.NoError(t, err)
                assert.NotNil(t, order)
                assert.Equal(t, 1, order.UserID)
                assert.Equal(t, 100.0, order.Amount)
                assert.Equal(t, "pending", order.Status)
                assert.Len(t, order.Items, 1)

                // 验证mock调用
                mockOrderRepo.AssertExpectations(t)
                mockNotification.AssertExpectations(t)
            }

            // 测试用例:金额验证失败
            func TestCreateOrder_InvalidAmount(t *testing.T) {
                service := &OrderService{}
                items := []OrderItem{{ProductID: 1, Quantity: 1, Price: 50.0}}

                // 测试零金额
                order, err := service.CreateOrder(1, items, 0)
                assert.Error(t, err)
                assert.Nil(t, order)
                assert.Equal(t, "订单金额必须大于0", err.Error())

                // 测试负金额
                order, err = service.CreateOrder(1, items, -100)
                assert.Error(t, err)
                assert.Nil(t, order)
            }

            // 测试用例:空商品列表
            func TestCreateOrder_EmptyItems(t *testing.T) {
                service := &OrderService{}

                order, err := service.CreateOrder(1, []OrderItem{}, 100.0)
                assert.Error(t, err)
                assert.Nil(t, order)
                assert.Contains(t, err.Error(), "至少包含一个商品")
            }

            // 测试用例:数据库保存失败
            func TestCreateOrder_SaveFailure(t *testing.T) {
                mockOrderRepo := new(MockOrderRepository)
                mockOrderRepo.On("Save", mock.Anything).Return(errors.New("数据库错误"))

                service := &OrderService{orderRepo: mockOrderRepo}
                items := []OrderItem{{ProductID: 1, Quantity: 1, Price: 50.0}}

                order, err := service.CreateOrder(1, items, 50.0)
                assert.Error(t, err)
                assert.Nil(t, order)
                assert.Equal(t, "数据库错误", err.Error())

                mockOrderRepo.AssertExpectations(t)
            }

            // 数据结构定义
            type Order struct {
                ID     int
                UserID int
                Items  []OrderItem
                Amount float64
                Status string
            }

            type OrderItem struct {
                ProductID int
                Quantity  int
                Price     float64
            }

            type OrderRepository interface {
                Save(order *Order) error
            }

            type PaymentRepository interface{}

            type NotificationService interface {
                Send(userID int, message string) error
            }
            ---
    b.数据转换测试
        a.场景描述
            数据转换逻辑包括DTO转换、序列化反序列化、数据格式化等。testify的Equal、JSONEq等断言方法可以轻松验证转换结果的正确性。
        b.实战示例
            ---
            // 数据转换测试示例
            package converter

            import (
                "testing"
                "github.com/stretchr/testify/assert"
                "encoding/json"
                "time"
            )

            // DTO转换器
            type UserConverter struct{}

            func (c *UserConverter) ToDTO(user *User) *UserDTO {
                if user == nil {
                    return nil
                }

                return &UserDTO{
                    ID:        user.ID,
                    Username:  user.Username,
                    Email:     user.Email,
                    CreatedAt: user.CreatedAt.Format("2006-01-02 15:04:05"),
                    IsActive:  user.Active,
                }
            }

            func (c *UserConverter) ToEntity(dto *UserDTO) (*User, error) {
                if dto == nil {
                    return nil, errors.New("dto不能为空")
                }

                createdAt, err := time.Parse("2006-01-02 15:04:05", dto.CreatedAt)
                if err != nil {
                    return nil, err
                }

                return &User{
                    ID:        dto.ID,
                    Username:  dto.Username,
                    Email:     dto.Email,
                    CreatedAt: createdAt,
                    Active:    dto.IsActive,
                }, nil
            }

            // 测试DTO转换
            func TestToDTO(t *testing.T) {
                converter := &UserConverter{}

                // 测试正常转换
                createdAt := time.Date(2024, 1, 1, 12, 0, 0, 0, time.UTC)
                user := &User{
                    ID:        1,
                    Username:  "alice",
                    Email:     "alice@example.com",
                    CreatedAt: createdAt,
                    Active:    true,
                }

                dto := converter.ToDTO(user)

                assert.NotNil(t, dto)
                assert.Equal(t, 1, dto.ID)
                assert.Equal(t, "alice", dto.Username)
                assert.Equal(t, "alice@example.com", dto.Email)
                assert.Equal(t, "2024-01-01 12:00:00", dto.CreatedAt)
                assert.True(t, dto.IsActive)

                // 测试nil处理
                nilDTO := converter.ToDTO(nil)
                assert.Nil(t, nilDTO)
            }

            // 测试Entity转换
            func TestToEntity(t *testing.T) {
                converter := &UserConverter{}

                dto := &UserDTO{
                    ID:        1,
                    Username:  "bob",
                    Email:     "bob@example.com",
                    CreatedAt: "2024-01-01 12:00:00",
                    IsActive:  true,
                }

                user, err := converter.ToEntity(dto)

                assert.NoError(t, err)
                assert.NotNil(t, user)
                assert.Equal(t, 1, user.ID)
                assert.Equal(t, "bob", user.Username)
                assert.Equal(t, "bob@example.com", user.Email)
                assert.True(t, user.Active)
                assert.Equal(t, 2024, user.CreatedAt.Year())

                // 测试nil处理
                nilUser, err := converter.ToEntity(nil)
                assert.Error(t, err)
                assert.Nil(t, nilUser)

                // 测试无效日期
                invalidDTO := &UserDTO{CreatedAt: "invalid-date"}
                invalidUser, err := converter.ToEntity(invalidDTO)
                assert.Error(t, err)
                assert.Nil(t, invalidUser)
            }

            // 测试JSON序列化
            func TestJSONSerialization(t *testing.T) {
                user := &User{
                    ID:       1,
                    Username: "charlie",
                    Email:    "charlie@example.com",
                    Active:   true,
                }

                // 序列化
                jsonData, err := json.Marshal(user)
                assert.NoError(t, err)

                // 使用JSONEq断言JSON相等(忽略字段顺序和格式)
                expectedJSON := `{
                    "id": 1,
                    "username": "charlie",
                    "email": "charlie@example.com",
                    "active": true
                }`
                assert.JSONEq(t, expectedJSON, string(jsonData))

                // 反序列化
                var decoded User
                err = json.Unmarshal(jsonData, &decoded)
                assert.NoError(t, err)
                assert.Equal(t, user.ID, decoded.ID)
                assert.Equal(t, user.Username, decoded.Username)
            }

            type User struct {
                ID        int       `json:"id"`
                Username  string    `json:"username"`
                Email     string    `json:"email"`
                CreatedAt time.Time `json:"created_at"`
                Active    bool      `json:"active"`
            }

            type UserDTO struct {
                ID        int    `json:"id"`
                Username  string `json:"username"`
                Email     string `json:"email"`
                CreatedAt string `json:"created_at"`
                IsActive  bool   `json:"is_active"`
            }
            ---

02.集成测试场景
    a.数据库集成测试
        a.场景描述
            测试应用与数据库的集成,验证SQL查询、事务处理、数据一致性等。suite包的SetUp/TearDown机制非常适合管理测试数据库的初始化和清理。
        b.实战示例
            ---
            // 数据库集成测试示例
            package repository

            import (
                "testing"
                "github.com/stretchr/testify/suite"
                "github.com/stretchr/testify/assert"
                "database/sql"
                _ "github.com/go-sql-driver/mysql"
            )

            // 数据库测试套件
            type UserRepositoryTestSuite struct {
                suite.Suite
                db   *sql.DB
                repo *UserRepository
            }

            // 套件初始化:连接测试数据库
            func (s *UserRepositoryTestSuite) SetupSuite() {
                var err error
                s.db, err = sql.Open("mysql", "root:password@tcp(localhost:3306)/test_db")
                s.Require().NoError(err)

                s.repo = NewUserRepository(s.db)
            }

            // 套件清理:关闭数据库连接
            func (s *UserRepositoryTestSuite) TearDownSuite() {
                if s.db != nil {
                    s.db.Close()
                }
            }

            // 每个测试前:清空表并插入测试数据
            func (s *UserRepositoryTestSuite) SetupTest() {
                _, err := s.db.Exec("TRUNCATE TABLE users")
                s.Require().NoError(err)

                // 插入测试数据
                _, err = s.db.Exec(`
                    INSERT INTO users (id, username, email, active) VALUES
                    (1, 'alice', 'alice@example.com', 1),
                    (2, 'bob', 'bob@example.com', 1),
                    (3, 'charlie', 'charlie@example.com', 0)
                `)
                s.Require().NoError(err)
            }

            // 测试:根据ID查询用户
            func (s *UserRepositoryTestSuite) TestFindByID() {
                user, err := s.repo.FindByID(1)

                assert.NoError(s.T(), err)
                assert.NotNil(s.T(), user)
                assert.Equal(s.T(), 1, user.ID)
                assert.Equal(s.T(), "alice", user.Username)
                assert.Equal(s.T(), "alice@example.com", user.Email)
                assert.True(s.T(), user.Active)
            }

            // 测试:查询不存在的用户
            func (s *UserRepositoryTestSuite) TestFindByID_NotFound() {
                user, err := s.repo.FindByID(999)

                assert.Error(s.T(), err)
                assert.Nil(s.T(), user)
                assert.Equal(s.T(), sql.ErrNoRows, err)
            }

            // 测试:查询所有激活用户
            func (s *UserRepositoryTestSuite) TestFindActiveUsers() {
                users, err := s.repo.FindActiveUsers()

                assert.NoError(s.T(), err)
                assert.Len(s.T(), users, 2)
                assert.Equal(s.T(), "alice", users[0].Username)
                assert.Equal(s.T(), "bob", users[1].Username)
            }

            // 测试:创建用户
            func (s *UserRepositoryTestSuite) TestCreate() {
                newUser := &User{
                    Username: "dave",
                    Email:    "dave@example.com",
                    Active:   true,
                }

                err := s.repo.Create(newUser)
                assert.NoError(s.T(), err)
                assert.NotZero(s.T(), newUser.ID)

                // 验证数据库中确实存在
                savedUser, err := s.repo.FindByID(newUser.ID)
                assert.NoError(s.T(), err)
                assert.Equal(s.T(), "dave", savedUser.Username)
            }

            // 测试:更新用户
            func (s *UserRepositoryTestSuite) TestUpdate() {
                user, _ := s.repo.FindByID(1)
                user.Email = "newemail@example.com"

                err := s.repo.Update(user)
                assert.NoError(s.T(), err)

                // 验证更新成功
                updated, _ := s.repo.FindByID(1)
                assert.Equal(s.T(), "newemail@example.com", updated.Email)
            }

            // 测试:删除用户
            func (s *UserRepositoryTestSuite) TestDelete() {
                err := s.repo.Delete(1)
                assert.NoError(s.T(), err)

                // 验证用户已删除
                user, err := s.repo.FindByID(1)
                assert.Error(s.T(), err)
                assert.Nil(s.T(), user)
            }

            // 运行测试套件
            func TestUserRepositoryTestSuite(t *testing.T) {
                suite.Run(t, new(UserRepositoryTestSuite))
            }

            // Repository实现(简化示例)
            type UserRepository struct {
                db *sql.DB
            }

            func NewUserRepository(db *sql.DB) *UserRepository {
                return &UserRepository{db: db}
            }

            func (r *UserRepository) FindByID(id int) (*User, error) {
                user := &User{}
                err := r.db.QueryRow(
                    "SELECT id, username, email, active FROM users WHERE id = ?",
                    id,
                ).Scan(&user.ID, &user.Username, &user.Email, &user.Active)
                return user, err
            }

            func (r *UserRepository) FindActiveUsers() ([]*User, error) {
                rows, err := r.db.Query("SELECT id, username, email, active FROM users WHERE active = 1")
                if err != nil {
                    return nil, err
                }
                defer rows.Close()

                var users []*User
                for rows.Next() {
                    user := &User{}
                    rows.Scan(&user.ID, &user.Username, &user.Email, &user.Active)
                    users = append(users, user)
                }
                return users, nil
            }

            func (r *UserRepository) Create(user *User) error {
                result, err := r.db.Exec(
                    "INSERT INTO users (username, email, active) VALUES (?, ?, ?)",
                    user.Username, user.Email, user.Active,
                )
                if err != nil {
                    return err
                }
                id, _ := result.LastInsertId()
                user.ID = int(id)
                return nil
            }

            func (r *UserRepository) Update(user *User) error {
                _, err := r.db.Exec(
                    "UPDATE users SET username=?, email=?, active=? WHERE id=?",
                    user.Username, user.Email, user.Active, user.ID,
                )
                return err
            }

            func (r *UserRepository) Delete(id int) error {
                _, err := r.db.Exec("DELETE FROM users WHERE id = ?", id)
                return err
            }
            ---
    b.API集成测试
        testify的httptest工具配合标准库可以轻松测试HTTP处理器。适合测试RESTful API、Web服务接口等,验证路由、参数解析、响应格式等。

03.TDD开发场景
    a.测试驱动开发
        testify简洁的API降低了编写测试的门槛,非常适合TDD开发模式。先编写失败的测试用例,明确期望行为,再实现功能使测试通过,最后重构优化代码。
    b.红绿重构循环
        红阶段编写失败测试,绿阶段快速实现让测试通过,重构阶段优化代码质量。testify的快速反馈帮助开发者保持高效的TDD节奏。

1.5 架构设计

01.包结构设计
    a.核心包组织
        a.assert包
            assert包是testify的核心,提供非致命性断言功能。包含Assertions结构体作为断言方法的接收者,所有断言方法都返回布尔值表示断言是否通过。内部使用testing.T的Errorf方法记录失败信息,不会终止测试执行。
        b.require包
            require包提供致命性断言,与assert包API完全一致,但实现机制不同。断言失败时调用testing.T的FailNow方法立即终止测试。require包实际上是对assert包的封装,通过tHelper标记和FailNow实现致命性行为。
        c.mock包
            mock包实现完整的mock框架。核心是Mock结构体,维护期望列表ExpectedCalls和实际调用列表Calls。提供On方法设置期望、Called方法记录调用、AssertExpectations方法验证期望。使用mutex保证并发安全。
        d.suite包
            suite包提供测试套件功能。定义Suite接口和TestingSuite结构体,通过反射机制扫描测试方法、执行生命周期钩子。Run函数是套件的入口点,负责协调整个测试执行流程。
    b.包依赖关系
        ---
        // testify包依赖关系图(伪代码展示)
        package architecture

        /*
        testify包依赖结构:

        ┌─────────────────────────────────────┐
        │         testify/                     │
        │                                      │
        │  ┌──────────┐    ┌──────────┐      │
        │  │  assert  │    │ require  │      │
        │  │  (核心)  │←───│ (封装)   │      │
        │  └──────────┘    └──────────┘      │
        │       ↑                              │
        │       │                              │
        │  ┌────┴────┐    ┌──────────┐       │
        │  │  mock   │    │  suite   │       │
        │  │ (独立)  │    │ (组织)   │       │
        │  └─────────┘    └────┬─────┘       │
        │                      │               │
        │  ┌──────────┐    ┌──┴──────┐       │
        │  │   http   │    │  testing │       │
        │  │ (辅助)  │    │ (标准库) │       │
        │  └──────────┘    └──────────┘       │
        └─────────────────────────────────────┘

        核心依赖说明:
        1. assert包:核心包,依赖标准库testing和reflect
        2. require包:封装assert包,添加致命性行为
        3. mock包:独立包,不依赖assert/require
        4. suite包:依赖testing包,通过反射执行测试
        5. http包:辅助包,封装httptest功能
        */

        // 示例:包引入方式
        import (
            "testing"

            // 方式1:分别引入所需包
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/require"
            "github.com/stretchr/testify/mock"
            "github.com/stretchr/testify/suite"

            // 方式2:使用别名避免冲突
            tassert "github.com/stretchr/testify/assert"
            trequire "github.com/stretchr/testify/require"
        )

        // 包之间的协作示例
        func TestPackageIntegration(t *testing.T) {
            // assert和require可以混合使用
            r := require.New(t)
            a := assert.New(t)

            // require检查前置条件
            config := LoadConfig()
            r.NotNil(config, "配置必须加载成功")

            // assert检查多个属性
            a.Equal("localhost", config.Host)
            a.Equal(3306, config.Port)

            // mock对象独立使用
            mockRepo := new(MockRepository)
            mockRepo.On("Get", 1).Return("data", nil)

            // 在suite中使用assert/require/mock
            // suite.Run(t, new(IntegrationTestSuite))
        }

        type Config struct {
            Host string
            Port int
        }

        func LoadConfig() *Config {
            return &Config{Host: "localhost", Port: 3306}
        }

        type MockRepository struct {
            mock.Mock
        }

        func (m *MockRepository) Get(id int) (string, error) {
            args := m.Called(id)
            return args.String(0), args.Error(1)
        }
        ---

02.断言实现机制
    a.断言流程
        a.调用流程
            断言方法的执行流程包括:参数接收、类型检查、值比较、结果判断、错误记录。所有断言方法都遵循相同的模式,确保行为一致性和可预测性。
        b.错误记录机制
            断言失败时,testify会生成详细的错误信息,包括文件位置、行号、期望值、实际值、差异说明。使用testing.T的Helper标记确保错误堆栈指向正确的测试代码行,而不是testify内部实现。
        c.实现示例
            ---
            // 断言实现机制示例(简化版)
            package assert

            import (
                "testing"
                "fmt"
                "reflect"
            )

            // Assertions结构体:断言方法的接收者
            type Assertions struct {
                t TestingT
            }

            // TestingT接口:抽象testing.T
            type TestingT interface {
                Errorf(format string, args ...interface{})
                Helper()
            }

            // New:创建断言对象
            func New(t TestingT) *Assertions {
                return &Assertions{t: t}
            }

            // Equal断言实现(简化版)
            func (a *Assertions) Equal(expected, actual interface{}, msgAndArgs ...interface{}) bool {
                // 标记为辅助函数,错误堆栈跳过此层
                a.t.Helper()

                // 使用reflect.DeepEqual进行深度比较
                if reflect.DeepEqual(expected, actual) {
                    return true
                }

                // 断言失败,生成错误信息
                message := formatMessage(msgAndArgs...)
                diff := generateDiff(expected, actual)

                a.t.Errorf("Not equal: \n"+
                    "expected: %v\n"+
                    "actual  : %v\n"+
                    "%s\n"+
                    "%s",
                    expected, actual, diff, message)

                return false
            }

            // NoError断言实现(简化版)
            func (a *Assertions) NoError(err error, msgAndArgs ...interface{}) bool {
                a.t.Helper()

                if err == nil {
                    return true
                }

                message := formatMessage(msgAndArgs...)
                a.t.Errorf("Received unexpected error:\n"+
                    "%+v\n"+
                    "%s",
                    err, message)

                return false
            }

            // True断言实现(简化版)
            func (a *Assertions) True(value bool, msgAndArgs ...interface{}) bool {
                a.t.Helper()

                if value {
                    return true
                }

                message := formatMessage(msgAndArgs...)
                a.t.Errorf("Should be true\n%s", message)

                return false
            }

            // 辅助函数:格式化用户消息
            func formatMessage(msgAndArgs ...interface{}) string {
                if len(msgAndArgs) == 0 {
                    return ""
                }
                if len(msgAndArgs) == 1 {
                    return fmt.Sprintf("%v", msgAndArgs[0])
                }
                return fmt.Sprintf(msgAndArgs[0].(string), msgAndArgs[1:]...)
            }

            // 辅助函数:生成差异说明
            func generateDiff(expected, actual interface{}) string {
                // 实际实现会生成详细的diff信息
                return fmt.Sprintf("Diff: expected %T but got %T", expected, actual)
            }

            // 使用示例
            func TestAssertionMechanism(t *testing.T) {
                a := New(t)

                // Equal断言
                a.Equal(5, Add(2, 3), "加法结果应该正确")

                // NoError断言
                err := DoSomething()
                a.NoError(err, "不应该返回错误")

                // True断言
                a.True(IsValid(), "应该返回true")
            }

            func Add(a, b int) int { return a + b }
            func DoSomething() error { return nil }
            func IsValid() bool { return true }
            ---
    b.require vs assert区别
        a.实现差异
            require包通过在assert包基础上添加FailNow调用实现致命性。关键代码是在断言失败后调用t.FailNow(),该方法会立即终止当前goroutine的执行。
        b.对比实现
            ---
            // require vs assert实现对比
            package comparison

            import "testing"

            // assert包实现(简化)
            type AssertAssertions struct {
                t *testing.T
            }

            func (a *AssertAssertions) Equal(expected, actual interface{}) bool {
                a.t.Helper()
                if expected != actual {
                    a.t.Errorf("Not equal: expected=%v, actual=%v", expected, actual)
                    return false  // 返回false但继续执行
                }
                return true
            }

            // require包实现(简化)
            type RequireAssertions struct {
                t *testing.T
            }

            func (r *RequireAssertions) Equal(expected, actual interface{}) {
                r.t.Helper()
                if expected != actual {
                    r.t.Errorf("Not equal: expected=%v, actual=%v", expected, actual)
                    r.t.FailNow()  // 关键差异:立即终止
                }
            }

            // 行为对比测试
            func TestAssertBehavior(t *testing.T) {
                a := &AssertAssertions{t: t}

                a.Equal(1, 2)  // 失败但继续
                t.Log("这行会执行")  // 会执行
                a.Equal(3, 3)  // 继续执行后续断言
            }

            func TestRequireBehavior(t *testing.T) {
                r := &RequireAssertions{t: t}

                r.Equal(1, 2)  // 失败并终止
                t.Log("这行不会执行")  // 不会执行
            }
            ---

03.Mock框架架构
    a.核心数据结构
        a.Mock结构体
            Mock结构体是mock框架的核心,包含ExpectedCalls期望调用列表、Calls实际调用列表、mutex并发锁、testData测试数据。所有mock对象都嵌入Mock结构体,继承其方法和状态。
        b.Call结构体
            Call结构体表示一次方法调用期望,包含Method方法名、Arguments参数列表、ReturnArguments返回值、Times调用次数限制、WaitFor等待时间、Run自定义函数等属性。
        c.架构示例
            ---
            // Mock框架核心结构(简化版)
            package mock

            import (
                "sync"
                "time"
                "fmt"
            )

            // Mock核心结构体
            type Mock struct {
                // 期望调用列表
                ExpectedCalls []*Call

                // 实际调用列表
                Calls []Call

                // 并发锁
                mutex sync.Mutex

                // 测试对象
                testData TestingT
            }

            // Call表示一次方法调用期望
            type Call struct {
                Method           string        // 方法名
                Arguments        []interface{} // 期望参数
                ReturnArguments  []interface{} // 返回值
                Times            int           // 调用次数限制
                WaitFor          time.Duration // 等待时间
                RunFn            func(Arguments) // 自定义执行函数
            }

            // On:设置方法期望
            func (m *Mock) On(methodName string, arguments ...interface{}) *Call {
                m.mutex.Lock()
                defer m.mutex.Unlock()

                call := &Call{
                    Method:    methodName,
                    Arguments: arguments,
                }

                m.ExpectedCalls = append(m.ExpectedCalls, call)
                return call
            }

            // Return:设置返回值
            func (c *Call) Return(returnArguments ...interface{}) *Call {
                c.ReturnArguments = returnArguments
                return c
            }

            // Once:设置调用一次
            func (c *Call) Once() *Call {
                return c.Times(1)
            }

            // Times:设置调用次数
            func (c *Call) Times(i int) *Call {
                c.Times = i
                return c
            }

            // Called:记录实际调用
            func (m *Mock) Called(arguments ...interface{}) Arguments {
                m.mutex.Lock()
                defer m.mutex.Unlock()

                // 查找匹配的期望
                for _, expectedCall := range m.ExpectedCalls {
                    if m.matchArguments(expectedCall.Arguments, arguments) {
                        // 记录调用
                        actualCall := Call{
                            Method:    expectedCall.Method,
                            Arguments: arguments,
                        }
                        m.Calls = append(m.Calls, actualCall)

                        // 执行自定义函数
                        if expectedCall.RunFn != nil {
                            expectedCall.RunFn(Arguments(arguments))
                        }

                        // 等待指定时间
                        if expectedCall.WaitFor > 0 {
                            time.Sleep(expectedCall.WaitFor)
                        }

                        // 返回预设的返回值
                        return Arguments(expectedCall.ReturnArguments)
                    }
                }

                // 没有匹配的期望
                panic(fmt.Sprintf("unexpected call: %v", arguments))
            }

            // AssertExpectations:验证所有期望
            func (m *Mock) AssertExpectations(t TestingT) bool {
                m.mutex.Lock()
                defer m.mutex.Unlock()

                success := true

                for _, expectedCall := range m.ExpectedCalls {
                    actualCount := m.countCalls(expectedCall.Method, expectedCall.Arguments)

                    if expectedCall.Times > 0 && actualCount != expectedCall.Times {
                        t.Errorf("Expected %s to be called %d times, but was called %d times",
                            expectedCall.Method, expectedCall.Times, actualCount)
                        success = false
                    }
                }

                return success
            }

            // 辅助方法:匹配参数
            func (m *Mock) matchArguments(expected, actual []interface{}) bool {
                if len(expected) != len(actual) {
                    return false
                }

                for i := range expected {
                    // 实际实现会处理Anything等特殊匹配器
                    if expected[i] != actual[i] {
                        return false
                    }
                }

                return true
            }

            // 辅助方法:统计调用次数
            func (m *Mock) countCalls(method string, arguments []interface{}) int {
                count := 0
                for _, call := range m.Calls {
                    if call.Method == method && m.matchArguments(arguments, call.Arguments) {
                        count++
                    }
                }
                return count
            }

            type TestingT interface {
                Errorf(format string, args ...interface{})
                Helper()
            }

            type Arguments []interface{}

            func (a Arguments) Int(index int) int {
                return a[index].(int)
            }

            func (a Arguments) String(index int) string {
                return a[index].(string)
            }

            func (a Arguments) Get(index int) interface{} {
                return a[index]
            }

            func (a Arguments) Error(index int) error {
                obj := a[index]
                if obj == nil {
                    return nil
                }
                return obj.(error)
            }
            ---
    b.线程安全设计
        Mock框架使用mutex保证并发安全。所有修改ExpectedCalls和Calls列表的操作都在锁保护下进行,确保在并发测试场景下的正确性。这对于测试并发代码至关重要。

1.6 与标准库对比

01.功能对比
    a.断言能力
        a.标准库testing
            Go标准库testing包提供基础的测试框架,但不包含断言功能。开发者需要手动使用if判断和t.Errorf记录错误,代码冗长且容易出错。每个断言需要3-5行代码,错误信息需要手动格式化。
        b.testify优势
            testify提供100+断言方法,一行代码完成断言。自动生成详细的错误信息,包括期望值、实际值、类型信息和差异对比。支持深度比较、正则匹配、集合操作等复杂断言场景。
        c.对比示例
            ---
            // 断言能力对比:标准库 vs testify
            package comparison

            import (
                "testing"
                "github.com/stretchr/testify/assert"
                "reflect"
                "strings"
                "regexp"
            )

            // ========== 场景1:基础相等断言 ==========

            // 标准库:需要手动判断和格式化错误
            func TestEqualStdLib(t *testing.T) {
                result := Add(2, 3)
                expected := 5

                if result != expected {
                    t.Errorf("Add(2, 3) = %d; want %d", result, expected)
                }
            }

            // testify:一行代码完成
            func TestEqualTestify(t *testing.T) {
                result := Add(2, 3)
                assert.Equal(t, 5, result)
            }

            // ========== 场景2:结构体比较 ==========

            type Person struct {
                Name string
                Age  int
            }

            // 标准库:需要逐字段比较
            func TestStructStdLib(t *testing.T) {
                expected := Person{Name: "Alice", Age: 25}
                actual := GetPerson()

                if actual.Name != expected.Name {
                    t.Errorf("Name = %s; want %s", actual.Name, expected.Name)
                }
                if actual.Age != expected.Age {
                    t.Errorf("Age = %d; want %d", actual.Age, expected.Age)
                }
            }

            // testify:自动深度比较
            func TestStructTestify(t *testing.T) {
                expected := Person{Name: "Alice", Age: 25}
                actual := GetPerson()
                assert.Equal(t, expected, actual)
            }

            // ========== 场景3:切片比较 ==========

            // 标准库:需要长度检查+元素遍历
            func TestSliceStdLib(t *testing.T) {
                expected := []int{1, 2, 3, 4, 5}
                actual := GetNumbers()

                if len(actual) != len(expected) {
                    t.Fatalf("length = %d; want %d", len(actual), len(expected))
                }

                for i := range expected {
                    if actual[i] != expected[i] {
                        t.Errorf("element[%d] = %d; want %d", i, actual[i], expected[i])
                    }
                }
            }

            // testify:一行搞定
            func TestSliceTestify(t *testing.T) {
                expected := []int{1, 2, 3, 4, 5}
                actual := GetNumbers()
                assert.Equal(t, expected, actual)
            }

            // ========== 场景4:包含判断 ==========

            // 标准库:需要手动遍历查找
            func TestContainsStdLib(t *testing.T) {
                list := []string{"apple", "banana", "cherry"}
                target := "banana"

                found := false
                for _, item := range list {
                    if item == target {
                        found = true
                        break
                    }
                }

                if !found {
                    t.Errorf("list does not contain %s", target)
                }
            }

            // testify:直接使用Contains断言
            func TestContainsTestify(t *testing.T) {
                list := []string{"apple", "banana", "cherry"}
                assert.Contains(t, list, "banana")
            }

            // ========== 场景5:正则匹配 ==========

            // 标准库:需要手动编译正则并匹配
            func TestRegexpStdLib(t *testing.T) {
                text := "user@example.com"
                pattern := `^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$`

                matched, err := regexp.MatchString(pattern, text)
                if err != nil {
                    t.Fatalf("regexp error: %v", err)
                }
                if !matched {
                    t.Errorf("%s does not match pattern %s", text, pattern)
                }
            }

            // testify:一行正则断言
            func TestRegexpTestify(t *testing.T) {
                text := "user@example.com"
                assert.Regexp(t, `^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$`, text)
            }

            // ========== 场景6:错误处理 ==========

            // 标准库:需要手动判断nil
            func TestErrorStdLib(t *testing.T) {
                err := DoSomething()

                if err != nil {
                    t.Errorf("unexpected error: %v", err)
                }
            }

            // testify:专用错误断言
            func TestErrorTestify(t *testing.T) {
                err := DoSomething()
                assert.NoError(t, err)

                // 检查特定错误
                err2 := DoSomethingElse()
                assert.Error(t, err2)
                assert.EqualError(t, err2, "specific error message")
            }

            // ========== 场景7:类型检查 ==========

            // 标准库:使用reflect包
            func TestTypeStdLib(t *testing.T) {
                var obj interface{} = "hello"

                if reflect.TypeOf(obj).Kind() != reflect.String {
                    t.Errorf("type = %T; want string", obj)
                }
            }

            // testify:专用类型断言
            func TestTypeTestify(t *testing.T) {
                var obj interface{} = "hello"
                assert.IsType(t, "", obj)
            }

            // 辅助函数
            func Add(a, b int) int { return a + b }
            func GetPerson() Person { return Person{Name: "Alice", Age: 25} }
            func GetNumbers() []int { return []int{1, 2, 3, 4, 5} }
            func DoSomething() error { return nil }
            func DoSomethingElse() error { return errors.New("specific error message") }
            ---
    b.Mock能力
        a.标准库不足
            Go标准库不提供mock功能,开发者需要手动创建mock结构体、实现接口方法、记录调用信息、验证调用。这需要大量样板代码,且容易出错。
        b.testify解决方案
            testify的mock包提供完整的mock框架,通过嵌入mock.Mock结构体和调用On/Called/AssertExpectations方法,轻松实现接口mock。支持参数匹配、返回值控制、调用验证等高级功能。

02.代码量对比
    a.测试代码行数
        使用testify可以将测试代码量减少50-70%。断言代码从平均3-5行减少到1行,mock代码从几十行减少到10行以内。这不仅提高了开发效率,也增强了测试代码的可读性和可维护性。
    b.实际项目对比
        ---
        // 实际项目测试代码量对比
        package project

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        // ========== 完整功能测试对比 ==========

        // 定义业务接口和结构
        type UserService struct {
            repo UserRepository
        }

        func (s *UserService) GetUser(id int) (*User, error) {
            return s.repo.FindByID(id)
        }

        func (s *UserService) ValidateUser(user *User) error {
            if user.Name == "" {
                return errors.New("name is required")
            }
            if user.Age < 0 || user.Age > 150 {
                return errors.New("invalid age")
            }
            return nil
        }

        type User struct {
            ID   int
            Name string
            Age  int
        }

        type UserRepository interface {
            FindByID(id int) (*User, error)
        }

        // ========== 标准库实现(约60行)==========

        // 手动实现Mock对象
        type MockUserRepositoryStdLib struct {
            calls        []MockCall
            returnValues map[int]*User
            returnErrors map[int]error
        }

        type MockCall struct {
            method string
            args   []interface{}
        }

        func (m *MockUserRepositoryStdLib) FindByID(id int) (*User, error) {
            m.calls = append(m.calls, MockCall{method: "FindByID", args: []interface{}{id}})
            if err, ok := m.returnErrors[id]; ok {
                return nil, err
            }
            if user, ok := m.returnValues[id]; ok {
                return user, nil
            }
            return nil, errors.New("not found")
        }

        func (m *MockUserRepositoryStdLib) AssertCalled(t *testing.T, method string, expectedArgs ...interface{}) {
            found := false
            for _, call := range m.calls {
                if call.method == method {
                    if len(call.args) == len(expectedArgs) {
                        match := true
                        for i := range call.args {
                            if call.args[i] != expectedArgs[i] {
                                match = false
                                break
                            }
                        }
                        if match {
                            found = true
                            break
                        }
                    }
                }
            }
            if !found {
                t.Errorf("expected method %s to be called with args %v", method, expectedArgs)
            }
        }

        // 标准库测试(约40行)
        func TestUserServiceStdLib(t *testing.T) {
            // 创建mock对象
            mockRepo := &MockUserRepositoryStdLib{
                returnValues: make(map[int]*User),
                returnErrors: make(map[int]error),
            }

            // 设置返回值
            expectedUser := &User{ID: 1, Name: "Alice", Age: 25}
            mockRepo.returnValues[1] = expectedUser

            // 创建服务
            service := &UserService{repo: mockRepo}

            // 执行测试
            user, err := service.GetUser(1)

            // 手动断言
            if err != nil {
                t.Errorf("expected no error, got %v", err)
            }
            if user == nil {
                t.Fatal("expected user, got nil")
            }
            if user.ID != expectedUser.ID {
                t.Errorf("ID = %d; want %d", user.ID, expectedUser.ID)
            }
            if user.Name != expectedUser.Name {
                t.Errorf("Name = %s; want %s", user.Name, expectedUser.Name)
            }
            if user.Age != expectedUser.Age {
                t.Errorf("Age = %d; want %d", user.Age, expectedUser.Age)
            }

            // 验证调用
            mockRepo.AssertCalled(t, "FindByID", 1)
        }

        // ========== testify实现(约20行)==========

        // testify Mock对象(嵌入mock.Mock)
        type MockUserRepositoryTestify struct {
            mock.Mock
        }

        func (m *MockUserRepositoryTestify) FindByID(id int) (*User, error) {
            args := m.Called(id)
            if args.Get(0) == nil {
                return nil, args.Error(1)
            }
            return args.Get(0).(*User), args.Error(1)
        }

        // testify测试(约15行)
        func TestUserServiceTestify(t *testing.T) {
            // 创建mock对象
            mockRepo := new(MockUserRepositoryTestify)
            expectedUser := &User{ID: 1, Name: "Alice", Age: 25}

            // 设置期望
            mockRepo.On("FindByID", 1).Return(expectedUser, nil)

            // 创建服务并测试
            service := &UserService{repo: mockRepo}
            user, err := service.GetUser(1)

            // testify断言(5行 vs 标准库15行)
            assert.NoError(t, err)
            assert.Equal(t, expectedUser, user)

            // 验证mock调用
            mockRepo.AssertExpectations(t)
        }

        // ========== 代码量统计 ==========
        /*
        标准库方案:
        - Mock实现:约50行
        - 测试代码:约40行
        - 总计:约90行

        testify方案:
        - Mock实现:约10行
        - 测试代码:约15行
        - 总计:约25行

        代码减少:约72%(90行 -> 25行)
        */
        ---

03.错误信息对比
    a.标准库输出
        标准库的错误信息由开发者手动格式化,通常只包含简单的期望值和实际值。对于复杂对象的比较,很难直观看出差异。错误位置信息有时不准确,需要手动调试定位。
    b.testify输出
        testify自动生成详细的错误信息,包括类型信息、值对比、diff差异、调用堆栈等。对于结构体比较,会展示每个字段的差异。对于切片比较,会标注不同元素的位置。错误信息格式化美观,易于阅读。
    c.输出示例
        ---
        // 错误信息对比示例
        package errorinfo

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        type Product struct {
            ID    int
            Name  string
            Price float64
            Tags  []string
        }

        // ========== 标准库错误信息 ==========

        func TestProductStdLib(t *testing.T) {
            expected := Product{
                ID:    1,
                Name:  "Laptop",
                Price: 999.99,
                Tags:  []string{"electronics", "computer"},
            }

            actual := Product{
                ID:    1,
                Name:  "Laptop",
                Price: 1099.99,  // 价格不同
                Tags:  []string{"electronics"},  // 标签不同
            }

            // 标准库输出(不直观):
            // product_test.go:25: products are not equal
            if !reflect.DeepEqual(expected, actual) {
                t.Errorf("products are not equal")
            }

            // 即使逐字段比较,信息也不够详细:
            // product_test.go:30: Price = 1099.99; want 999.99
            if expected.Price != actual.Price {
                t.Errorf("Price = %f; want %f", actual.Price, expected.Price)
            }
        }

        // ========== testify错误信息 ==========

        func TestProductTestify(t *testing.T) {
            expected := Product{
                ID:    1,
                Name:  "Laptop",
                Price: 999.99,
                Tags:  []string{"electronics", "computer"},
            }

            actual := Product{
                ID:    1,
                Name:  "Laptop",
                Price: 1099.99,
                Tags:  []string{"electronics"},
            }

            // testify输出(详细且直观):
            /*
            Error Trace:    product_test.go:55
            Error:          Not equal:
                            expected: errorinfo.Product{
                                ID:    1,
                                Name:  "Laptop",
                                Price: 999.99,
                                Tags:  []string{"electronics", "computer"},
                            }
                            actual  : errorinfo.Product{
                                ID:    1,
                                Name:  "Laptop",
                                Price: 1099.99,
                                Tags:  []string{"electronics"},
                            }

                            Diff:
                            --- Expected
                            +++ Actual
                            @@ -2,5 +2,5 @@
                              ID: (int) 1,
                              Name: (string) (len=6) "Laptop",
                            - Price: (float64) 999.99,
                            + Price: (float64) 1099.99,
                            - Tags: ([]string) (len=2) ["electronics", "computer"]
                            + Tags: ([]string) (len=1) ["electronics"]
            Test:           TestProductTestify
            */
            assert.Equal(t, expected, actual)
        }

        // ========== 切片差异对比 ==========

        func TestSliceDiff(t *testing.T) {
            expected := []int{1, 2, 3, 4, 5}
            actual := []int{1, 2, 9, 4, 5}

            // testify清晰标注差异位置:
            /*
            Error:          Not equal:
                            expected: []int{1, 2, 3, 4, 5}
                            actual  : []int{1, 2, 9, 4, 5}

                            Diff:
                            --- Expected
                            +++ Actual
                            @@ -1,5 +1,5 @@
                             ([]int) (len=5) {
                              (int) 1,
                              (int) 2,
                            - (int) 3,
                            + (int) 9,
                              (int) 4,
                              (int) 5
            */
            assert.Equal(t, expected, actual)
        }
        ---

04.学习曲线对比
    a.标准库
        标准库testing包API简单,但需要掌握Go语言的错误处理、反射、接口等高级特性才能编写高质量测试。手动实现mock对象需要理解接口设计和依赖注入模式。初学者容易写出冗长且难以维护的测试代码。
    b.testify
        testify API丰富但学习曲线平缓。核心断言方法只有20个左右,命名直观易记。mock框架提供结构化的使用模式On-Called-Assert,容易上手。丰富的文档和示例降低了学习成本。

05.性能对比
    a.性能开销
        testify由于使用反射进行深度比较,性能略低于手写的if判断。但在测试场景下,这点性能开销完全可以忽略。测试的目标是正确性和可维护性,而非极致性能。
    b.实际影响
        在典型的测试套件中,testify的性能开销占总测试时间的比例不到1%。绝大部分测试时间消耗在业务逻辑执行、数据库操作、网络请求等方面。testify带来的开发效率提升远超过微小的性能损失。

1.7 生态系统

01.社区支持
    a.开源社区
        a.GitHub项目状态
            testify托管在GitHub上,拥有超过22000个Star,是Go语言生态中最受欢迎的测试库。项目活跃度高,每周都有代码提交,Issue响应及时,Pull Request审核专业。维护团队稳定,版本发布规律,向后兼容性好。
        b.贡献者生态
            testify拥有数百名贡献者,来自全球各地的开发者。社区欢迎各种形式的贡献,包括bug修复、新功能开发、文档改进、示例补充等。贡献指南完善,代码审查严格,确保代码质量。
        c.社区资源
            ---
            // testify社区资源索引
            package ecosystem

            /*
            ========== 官方资源 ==========

            1. GitHub仓库
               地址:https://github.com/stretchr/testify
               内容:源代码、Issue追踪、PR管理、Release发布

            2. 官方文档
               地址:https://pkg.go.dev/github.com/stretchr/testify
               内容:API文档、包说明、使用示例

            3. GoDoc文档
               地址:各包的godoc页面
               特点:自动生成、实时更新、示例完整

            ========== 社区资源 ==========

            1. Stack Overflow
               标签:testify, go-testing
               内容:问题解答、最佳实践、常见问题

            2. Reddit Go社区
               频道:r/golang
               内容:讨论、经验分享、技术交流

            3. 博客教程
               - 官方博客
               - 技术博客
               - 个人博客
               内容:深度教程、实战案例、技巧分享

            4. 视频教程
               平台:YouTube、Bilibili等
               内容:入门教程、高级技巧、实战演示

            ========== 学习路径 ==========

            入门阶段:
            1. 阅读官方README
            2. 学习基础断言(assert包)
            3. 完成简单的单元测试

            进阶阶段:
            1. 掌握require vs assert区别
            2. 学习mock基础
            3. 尝试测试套件

            高级阶段:
            1. 深入mock高级特性
            2. 掌握自定义断言
            3. 优化测试架构

            ========== 获取帮助 ==========

            1. 查看官方示例代码
            2. 搜索GitHub Issues
            3. 在Stack Overflow提问
            4. 参与社区讨论
            5. 阅读源代码实现
            */

            // 安装testify
            /*
            使用go get安装:
            go get github.com/stretchr/testify

            使用go mod管理:
            go mod init myproject
            go get github.com/stretchr/testify

            在go.mod中引用:
            require github.com/stretchr/testify v1.8.4
            */

            // 导入testify包
            import (
                "testing"

                // 断言包
                "github.com/stretchr/testify/assert"
                "github.com/stretchr/testify/require"

                // Mock包
                "github.com/stretchr/testify/mock"

                // 测试套件
                "github.com/stretchr/testify/suite"

                // HTTP测试
                "github.com/stretchr/testify/http"
            )

            // 快速上手示例
            func QuickStartExample(t *testing.T) {
                // 1. 基础断言
                assert.Equal(t, 5, Add(2, 3))

                // 2. 错误处理
                err := DoSomething()
                assert.NoError(t, err)

                // 3. 集合操作
                list := []int{1, 2, 3, 4, 5}
                assert.Contains(t, list, 3)
                assert.Len(t, list, 5)
            }

            func Add(a, b int) int { return a + b }
            func DoSomething() error { return nil }
            ---
    b.企业采用
        testify被众多知名企业和开源项目采用,包括Docker、Kubernetes、HashiCorp、Uber等。这些项目的测试代码为testify的可靠性和生产就绪性提供了有力证明。企业级项目的广泛使用也推动了testify的持续改进和功能增强。

02.扩展库和工具
    a.官方扩展
        a.http包
            testify提供http包用于HTTP测试,封装了httptest包的功能,提供更便捷的HTTP断言方法。支持测试HTTP处理器、验证响应状态码、检查响应头、比较响应体等。
        b.suite包
            suite包提供测试套件功能,支持SetUp/TearDown生命周期钩子、测试夹具管理、子测试组织等高级特性。适合构建结构化的集成测试和大型测试套件。
    b.第三方集成
        a.代码生成工具
            mockery是testify官方推荐的mock代码生成工具,可以自动为接口生成mock实现。通过分析接口定义,自动生成包含On、Called等方法的mock结构体,大幅减少手写mock代码的工作量。
        b.集成示例
            ---
            // mockery代码生成工具使用示例
            package tools

            /*
            ========== mockery安装 ==========

            使用go install安装:
            go install github.com/vektra/mockery/v2@latest

            验证安装:
            mockery --version

            ========== 使用mockery生成mock ==========

            1. 定义接口
            */

            // UserRepository接口定义
            type UserRepository interface {
                FindByID(id int) (*User, error)
                Save(user *User) error
                Delete(id int) error
                FindAll() ([]*User, error)
            }

            /*
            2. 生成mock代码

            命令行方式:
            mockery --name=UserRepository --output=mocks --outpkg=mocks

            生成的mock文件(mocks/UserRepository.go):
            */

            // 自动生成的mock代码(mockery生成)
            type MockUserRepository struct {
                mock.Mock
            }

            func (m *MockUserRepository) FindByID(id int) (*User, error) {
                args := m.Called(id)
                if args.Get(0) == nil {
                    return nil, args.Error(1)
                }
                return args.Get(0).(*User), args.Error(1)
            }

            func (m *MockUserRepository) Save(user *User) error {
                args := m.Called(user)
                return args.Error(0)
            }

            func (m *MockUserRepository) Delete(id int) error {
                args := m.Called(id)
                return args.Error(0)
            }

            func (m *MockUserRepository) FindAll() ([]*User, error) {
                args := m.Called()
                if args.Get(0) == nil {
                    return nil, args.Error(1)
                }
                return args.Get(0).([]*User), args.Error(1)
            }

            /*
            3. 使用生成的mock
            */

            func TestWithGeneratedMock(t *testing.T) {
                // 创建mock对象
                mockRepo := new(MockUserRepository)

                // 设置期望
                expectedUser := &User{ID: 1, Name: "Alice"}
                mockRepo.On("FindByID", 1).Return(expectedUser, nil)

                // 执行测试
                service := &UserService{repo: mockRepo}
                user, err := service.GetUser(1)

                // 断言
                assert.NoError(t, err)
                assert.Equal(t, expectedUser, user)

                // 验证mock
                mockRepo.AssertExpectations(t)
            }

            /*
            ========== mockery配置文件 ==========

            创建.mockery.yaml配置文件:

            with-expecter: true
            dir: "mocks"
            outpkg: "mocks"
            packages:
              github.com/myproject/repository:
                interfaces:
                  UserRepository:
                  ProductRepository:

            使用配置文件生成:
            mockery

            ========== mockery高级特性 ==========

            1. 生成带Expecter的mock
               --with-expecter
               支持类型安全的期望设置

            2. 递归生成所有接口
               --all --recursive
               扫描整个项目生成所有mock

            3. 指定输出目录
               --output=./mocks
               自定义mock文件存放位置

            4. 生成测试文件
               --testonly
               在生成的文件中添加//go:build !test
            */

            type User struct {
                ID   int
                Name string
            }

            type UserService struct {
                repo UserRepository
            }

            func (s *UserService) GetUser(id int) (*User, error) {
                return s.repo.FindByID(id)
            }
            ---
    c.CI/CD集成
        a.持续集成支持
            testify完美集成主流CI/CD平台,包括GitHub Actions、GitLab CI、Travis CI、CircleCI等。测试结果可以直接显示在CI系统中,失败的测试会阻止代码合并。支持并行测试、测试覆盖率报告、测试结果缓存等高级特性。
        b.集成配置示例
            ---
            // CI/CD集成配置示例
            package cicd

            /*
            ========== GitHub Actions配置 ==========

            文件:.github/workflows/test.yml
            */

            /*
            name: Test

            on:
              push:
                branches: [ main, develop ]
              pull_request:
                branches: [ main ]

            jobs:
              test:
                runs-on: ubuntu-latest

                steps:
                - name: Checkout code
                  uses: actions/checkout@v3

                - name: Setup Go
                  uses: actions/setup-go@v4
                  with:
                    go-version: '1.21'

                - name: Get dependencies
                  run: |
                    go mod download
                    go get github.com/stretchr/testify

                - name: Run tests
                  run: go test -v -race -coverprofile=coverage.txt -covermode=atomic ./...

                - name: Upload coverage
                  uses: codecov/codecov-action@v3
                  with:
                    file: ./coverage.txt

                - name: Run tests with testify
                  run: |
                    go test -v ./... | grep -A 10 "FAIL"
            */

            /*
            ========== GitLab CI配置 ==========

            文件:.gitlab-ci.yml
            */

            /*
            image: golang:1.21

            stages:
              - test
              - coverage

            test:
              stage: test
              script:
                - go mod download
                - go test -v -race ./...
              coverage: '/coverage: \d+.\d+% of statements/'

            coverage:
              stage: coverage
              script:
                - go test -coverprofile=coverage.out ./...
                - go tool cover -html=coverage.out -o coverage.html
              artifacts:
                paths:
                  - coverage.html
            */

            /*
            ========== Makefile测试命令 ==========

            文件:Makefile
            */

            /*
            .PHONY: test test-verbose test-coverage test-race

            # 运行所有测试
            test:
                go test ./...

            # 详细输出
            test-verbose:
                go test -v ./...

            # 生成覆盖率报告
            test-coverage:
                go test -coverprofile=coverage.out ./...
                go tool cover -html=coverage.out -o coverage.html
                @echo "Coverage report: coverage.html"

            # 竞态检测
            test-race:
                go test -race ./...

            # 运行特定测试
            test-one:
                go test -v -run $(TEST) ./...

            # 使用示例:
            # make test              # 运行所有测试
            # make test-verbose      # 详细输出
            # make test-coverage     # 生成覆盖率
            # make TEST=TestUser test-one  # 运行特定测试
            */

            /*
            ========== 测试脚本 ==========

            文件:scripts/test.sh
            */

            /*
            #!/bin/bash

            set -e

            echo "==> Running tests..."
            go test -v -race ./...

            echo "==> Generating coverage report..."
            go test -coverprofile=coverage.out ./...
            go tool cover -func=coverage.out

            echo "==> Coverage by package:"
            go test -coverprofile=coverage.out ./... | grep coverage

            echo "==> Checking test coverage threshold (80%)..."
            coverage=$(go tool cover -func=coverage.out | grep total | awk '{print $3}' | sed 's/%//')
            threshold=80

            if (( $(echo "$coverage < $threshold" | bc -l) )); then
                echo "ERROR: Coverage $coverage% is below threshold $threshold%"
                exit 1
            fi

            echo "✓ All tests passed with $coverage% coverage"
            */
            ---

03.版本兼容性
    a.Go版本支持
        testify支持Go 1.13及以上版本,与最新的Go版本保持同步。遵循Go的兼容性承诺,不会引入破坏性变更。定期更新以支持Go语言的新特性和改进。
    b.向后兼容
        testify非常重视向后兼容性,新版本不会破坏现有测试代码。API稳定,核心功能保持不变,新功能通过新方法或包提供。版本升级平滑,风险低。
    c.版本管理
        ---
        // testify版本管理示例
        package version

        /*
        ========== go.mod版本管理 ==========

        指定版本:
        require github.com/stretchr/testify v1.8.4

        使用最新版:
        go get -u github.com/stretchr/testify

        锁定版本:
        go mod tidy

        ========== 版本历史 ==========

        v1.8.x (2023):
        - 改进错误信息显示
        - 增强mock参数匹配
        - 性能优化

        v1.7.x (2021):
        - 支持Go 1.13+
        - 新增部分断言方法
        - Bug修复

        v1.6.x (2020):
        - 稳定版本
        - 广泛使用

        ========== 升级建议 ==========

        1. 查看Release Notes
        2. 在测试环境验证
        3. 运行完整测试套件
        4. 逐步升级
        5. 监控CI结果

        ========== 依赖管理 ==========

        使用go mod管理依赖:
        go mod download
        go mod verify
        go mod tidy

        查看依赖树:
        go mod graph | grep testify

        检查更新:
        go list -m -u github.com/stretchr/testify
        */
        ---

04.替代方案对比
    a.其他测试库
        Go生态中还有其他测试库如GoConvey、Ginkgo、Gomega等。GoConvey提供BDD风格的测试和Web UI,Ginkgo/Gomega提供BDD测试框架。testify相比这些库更轻量、更贴近Go原生风格,学习成本更低,社区更大。
    b.选型建议
        对于大多数Go项目,testify是最佳选择。如果需要BDD风格测试,可以考虑Ginkgo。如果需要Web UI查看测试结果,可以考虑GoConvey。但testify的通用性、稳定性和社区支持使其成为首选。

1.8 版本特性

01.主要版本演进
    a.v1.0-v1.5早期版本
        a.核心功能建立
            早期版本建立了testify的核心架构,包括assert包、require包、mock包的基本实现。提供了基础的断言方法如Equal、NotEqual、Nil、NotNil等,以及mock框架的On、Called、AssertExpectations机制。这一阶段奠定了testify的设计理念和使用模式。
        b.社区培育
            早期版本通过简洁的API和清晰的文档快速获得社区认可,成为Go测试领域的流行选择。众多开源项目开始采用testify,形成了良好的社区生态和反馈循环。
    b.v1.6-v1.7稳定期
        a.功能完善
            v1.6和v1.7版本是testify的稳定版本,经过多年使用验证,功能成熟可靠。增加了更多断言方法,改进了错误信息显示,优化了mock框架的性能。这两个版本被大量生产环境采用,积累了丰富的实战经验。
        b.生态扩展
            这一时期出现了mockery等配套工具,Go module成为标准依赖管理方式,testify的集成和使用变得更加便捷。CI/CD集成方案成熟,测试最佳实践逐步形成。
        c.版本特性
            ---
            // v1.6-v1.7版本特性示例
            package v16v17

            import (
                "testing"
                "github.com/stretchr/testify/assert"
                "github.com/stretchr/testify/require"
                "github.com/stretchr/testify/mock"
            )

            // v1.6新增特性:Eventually和Never断言
            func TestEventuallyFeature(t *testing.T) {
                counter := 0

                // Eventually:等待条件最终满足(最多等待1秒)
                assert.Eventually(t, func() bool {
                    counter++
                    return counter >= 5
                }, time.Second, 10*time.Millisecond, "counter应该最终达到5")

                // Never:确保条件在指定时间内始终不满足
                value := 0
                assert.Never(t, func() bool {
                    return value > 10
                }, 500*time.Millisecond, 10*time.Millisecond, "value不应该超过10")
            }

            // v1.7新增特性:ErrorIs和ErrorAs断言
            func TestErrorFeatures(t *testing.T) {
                // 自定义错误类型
                var customErr = errors.New("custom error")

                // ErrorIs:检查错误链中是否包含特定错误
                wrappedErr := fmt.Errorf("wrapped: %w", customErr)
                assert.ErrorIs(t, wrappedErr, customErr)

                // ErrorAs:检查错误是否可以转换为特定类型
                type MyError struct {
                    Code    int
                    Message string
                }

                func (e *MyError) Error() string {
                    return e.Message
                }

                myErr := &MyError{Code: 404, Message: "not found"}
                wrappedMyErr := fmt.Errorf("failed: %w", myErr)

                var target *MyError
                assert.ErrorAs(t, wrappedMyErr, &target)
                assert.Equal(t, 404, target.Code)
            }

            // v1.7改进:mock返回函数支持
            func TestMockReturnFunc(t *testing.T) {
                mockRepo := new(MockRepository)

                // Return函数:根据参数动态返回不同值
                mockRepo.On("Get", mock.Anything).Return(func(id int) string {
                    return fmt.Sprintf("item-%d", id)
                }, nil)

                result1, _ := mockRepo.Get(1)
                assert.Equal(t, "item-1", result1)

                result2, _ := mockRepo.Get(2)
                assert.Equal(t, "item-2", result2)

                mockRepo.AssertExpectations(t)
            }

            type MockRepository struct {
                mock.Mock
            }

            func (m *MockRepository) Get(id int) (string, error) {
                args := m.Called(id)
                if fn, ok := args.Get(0).(func(int) string); ok {
                    return fn(id), args.Error(1)
                }
                return args.String(0), args.Error(1)
            }
            ---
    c.v1.8当前版本
        a.现代化改进
            v1.8是当前主流使用的版本,支持Go 1.13及以上版本。改进了错误信息的格式化输出,增强了diff显示,优化了大型对象的比较性能。增加了更多实用的断言方法,改进了mock框架的类型安全性。
        b.Go生态适配
            完全支持Go modules,与Go 1.18+的泛型特性兼容。改进了与Go标准库的集成,特别是testing.T和testing.B的支持。优化了在并发测试场景下的表现,修复了竞态条件问题。
        c.核心改进
            ---
            // v1.8版本核心改进示例
            package v18

            import (
                "testing"
                "github.com/stretchr/testify/assert"
                "github.com/stretchr/testify/require"
                "time"
            )

            // v1.8改进:更好的diff显示
            func TestImprovedDiff(t *testing.T) {
                type ComplexStruct struct {
                    ID        int
                    Name      string
                    Tags      []string
                    Metadata  map[string]interface{}
                    CreatedAt time.Time
                }

                expected := ComplexStruct{
                    ID:   1,
                    Name: "Test",
                    Tags: []string{"tag1", "tag2", "tag3"},
                    Metadata: map[string]interface{}{
                        "key1": "value1",
                        "key2": 123,
                    },
                    CreatedAt: time.Now(),
                }

                actual := ComplexStruct{
                    ID:   1,
                    Name: "Test",
                    Tags: []string{"tag1", "tag2"},  // 少一个tag
                    Metadata: map[string]interface{}{
                        "key1": "value1",
                        "key2": 456,  // 值不同
                    },
                    CreatedAt: expected.CreatedAt,
                }

                // v1.8的diff显示更加清晰,精确指出差异位置
                assert.Equal(t, expected, actual)
            }

            // v1.8新增:Greater/Less系列断言
            func TestComparisonAssertions(t *testing.T) {
                // Greater:大于
                assert.Greater(t, 10, 5)

                // GreaterOrEqual:大于等于
                assert.GreaterOrEqual(t, 10, 10)

                // Less:小于
                assert.Less(t, 5, 10)

                // LessOrEqual:小于等于
                assert.LessOrEqual(t, 5, 5)

                // Positive:正数
                assert.Positive(t, 42)

                // Negative:负数
                assert.Negative(t, -42)
            }

            // v1.8改进:mock参数匹配增强
            func TestEnhancedMockMatching(t *testing.T) {
                mockService := new(MockService)

                // MatchedBy:自定义匹配函数
                mockService.On("Process", mock.MatchedBy(func(user *User) bool {
                    return user.Age >= 18 && user.Active
                })).Return(nil)

                // 只有满足条件的调用才会匹配
                err1 := mockService.Process(&User{Age: 20, Active: true})
                assert.NoError(t, err1)

                // 不满足条件的调用会失败
                // err2 := mockService.Process(&User{Age: 16, Active: true})
                // 会panic: no matching expectation

                mockService.AssertExpectations(t)
            }

            // v1.8新增:NotImplements断言
            func TestImplementsAssertions(t *testing.T) {
                type Reader interface {
                    Read(p []byte) (n int, err error)
                }

                type Writer interface {
                    Write(p []byte) (n int, err error)
                }

                var buffer bytes.Buffer

                // Implements:检查是否实现接口
                assert.Implements(t, (*Writer)(nil), &buffer)
                assert.Implements(t, (*Reader)(nil), &buffer)

                // NotImplements:检查是否未实现接口
                type MyStruct struct{}
                assert.NotImplements(t, (*Writer)(nil), &MyStruct{})
            }

            type User struct {
                Age    int
                Active bool
            }

            type MockService struct {
                mock.Mock
            }

            func (m *MockService) Process(user *User) error {
                args := m.Called(user)
                return args.Error(0)
            }
            ---

02.功能特性对比
    a.断言方法演进
        a.基础断言增强
            从最初的20多个断言方法增加到100+个方法。早期只有Equal、NotEqual、Nil等基础断言,后续版本不断增加Contains、ElementsMatch、Subset、Greater、Less等实用断言。每个版本都在保持向后兼容的前提下丰富断言能力。
        b.错误处理改进
            错误相关断言从简单的Error、NoError扩展到ErrorIs、ErrorAs、EqualError、ErrorContains等。适应Go 1.13+的错误包装机制,支持错误链检查和类型断言。错误信息显示也不断优化,提供更详细的诊断信息。
    b.Mock功能增强
        a.参数匹配进化
            从简单的精确匹配发展到支持Anything、AnythingOfType、MatchedBy等灵活匹配器。增加了IsType、AnythingOfTypeArgument等类型检查匹配器。支持自定义匹配函数,可以实现复杂的参数验证逻辑。
        b.调用控制完善
            从基础的On-Return机制扩展到支持Once、Twice、Times、Maybe等调用次数控制。增加了Run自定义执行函数、WaitUntil等待控制。支持After、NotBefore等调用顺序验证。
        c.演进示例
            ---
            // Mock功能演进对比
            package evolution

            import (
                "testing"
                "github.com/stretchr/testify/mock"
                "github.com/stretchr/testify/assert"
            )

            // ========== 早期版本:基础Mock ==========

            func TestBasicMockOldStyle(t *testing.T) {
                mockRepo := new(MockUserRepository)

                // 早期:只支持精确参数匹配和简单返回
                mockRepo.On("Get", 1).Return(&User{ID: 1, Name: "Alice"}, nil)

                user, err := mockRepo.Get(1)
                assert.NoError(t, err)
                assert.Equal(t, "Alice", user.Name)

                mockRepo.AssertExpectations(t)
            }

            // ========== 现代版本:高级Mock ==========

            func TestAdvancedMockNewStyle(t *testing.T) {
                mockRepo := new(MockUserRepository)

                // 现代:支持灵活匹配、调用控制、自定义行为
                mockRepo.On("Get", mock.MatchedBy(func(id int) bool {
                    return id > 0 && id < 1000
                })).Run(func(args mock.Arguments) {
                    id := args.Int(0)
                    t.Logf("Get called with id=%d", id)
                }).Return(func(id int) *User {
                    return &User{ID: id, Name: fmt.Sprintf("User-%d", id)}
                }, nil).Times(3)

                // 调用3次,每次返回不同用户
                for i := 1; i <= 3; i++ {
                    user, err := mockRepo.Get(i)
                    assert.NoError(t, err)
                    assert.Equal(t, i, user.ID)
                }

                // 验证调用次数
                mockRepo.AssertExpectations(t)
                mockRepo.AssertNumberOfCalls(t, "Get", 3)
            }

            // ========== Mock链式调用增强 ==========

            func TestMockChaining(t *testing.T) {
                mockRepo := new(MockUserRepository)

                // 链式设置多个期望
                mockRepo.On("Get", 1).Return(&User{ID: 1}, nil).Once()
                mockRepo.On("Get", 2).Return(&User{ID: 2}, nil).Once()
                mockRepo.On("Get", mock.Anything).Return(nil, errors.New("not found")).Maybe()

                // 第一次调用
                user1, _ := mockRepo.Get(1)
                assert.Equal(t, 1, user1.ID)

                // 第二次调用
                user2, _ := mockRepo.Get(2)
                assert.Equal(t, 2, user2.ID)

                // 第三次调用匹配Anything
                user3, err := mockRepo.Get(999)
                assert.Error(t, err)
                assert.Nil(t, user3)

                mockRepo.AssertExpectations(t)
            }

            type MockUserRepository struct {
                mock.Mock
            }

            func (m *MockUserRepository) Get(id int) (*User, error) {
                args := m.Called(id)
                if args.Get(0) == nil {
                    return nil, args.Error(1)
                }
                if fn, ok := args.Get(0).(func(int) *User); ok {
                    return fn(id), args.Error(1)
                }
                return args.Get(0).(*User), args.Error(1)
            }
            ---

03.性能优化历程
    a.早期性能
        早期版本主要关注功能完整性和API易用性,性能优化不是首要目标。反射操作较多,大型对象比较时性能开销明显。但对于常规测试场景,性能已经足够。
    b.持续优化
        后续版本不断优化性能,减少不必要的反射调用,改进对象比较算法。增加缓存机制,避免重复的类型检查。优化并发场景下的锁竞争,提高并行测试性能。
    c.性能基准
        ---
        // testify性能优化对比基准测试
        package benchmark

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        // 基准测试:简单断言性能
        func BenchmarkSimpleAssertion(b *testing.B) {
            for i := 0; i < b.N; i++ {
                assert.Equal(b, 5, 2+3)
            }
        }

        // 基准测试:结构体比较性能
        func BenchmarkStructAssertion(b *testing.B) {
            user1 := User{ID: 1, Name: "Alice", Age: 25}
            user2 := User{ID: 1, Name: "Alice", Age: 25}

            b.ResetTimer()
            for i := 0; i < b.N; i++ {
                assert.Equal(b, user1, user2)
            }
        }

        // 基准测试:切片比较性能
        func BenchmarkSliceAssertion(b *testing.B) {
            slice1 := []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
            slice2 := []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

            b.ResetTimer()
            for i := 0; i < b.N; i++ {
                assert.Equal(b, slice1, slice2)
            }
        }

        // 基准测试:mock调用性能
        func BenchmarkMockCall(b *testing.B) {
            mockRepo := new(MockUserRepository)
            mockRepo.On("Get", mock.Anything).Return(&User{ID: 1}, nil)

            b.ResetTimer()
            for i := 0; i < b.N; i++ {
                mockRepo.Get(1)
            }
        }

        /*
        性能测试结果(参考值):
        BenchmarkSimpleAssertion-8      20000000    85 ns/op
        BenchmarkStructAssertion-8       5000000   320 ns/op
        BenchmarkSliceAssertion-8        3000000   450 ns/op
        BenchmarkMockCall-8              2000000   680 ns/op

        结论:
        1. 简单断言性能优秀,纳秒级延迟
        2. 复杂对象比较有一定开销,但仍在可接受范围
        3. Mock调用性能良好,适合大规模测试
        4. 总体性能足以支撑生产级测试需求
        */
        ---

04.未来发展方向
    a.Go泛型支持
        随着Go 1.18引入泛型,testify未来可能提供类型安全的泛型断言方法。例如Equal[T](expected T, actual T),在编译时检查类型匹配。这将进一步提升API的类型安全性和IDE支持。
    b.性能持续优化
        继续优化反射性能,探索编译时代码生成方案。改进大型对象比较算法,减少内存分配。优化并发测试场景的性能表现。
    c.生态系统扩展
        加强与其他测试工具的集成,如性能测试、模糊测试等。改进mock代码生成工具,支持更多场景。增强CI/CD集成能力,提供更丰富的测试报告。
    d.社区驱动创新
        testify作为开源项目,未来发展方向将由社区需求驱动。鼓励社区贡献新功能、改进建议和最佳实践。保持API稳定性的同时,持续创新满足新的测试需求。

2 核心组件

2.1 汇总:4个

01.核心包概览
    a.包组织结构
        testify采用模块化设计,将功能划分为多个独立的包,每个包专注于特定的测试场景。核心包包括assert断言包、require断言包、mock模拟包、suite套件包、http测试包。这种设计使开发者可以按需引入,保持代码简洁。
    b.包依赖关系
        assert包是基础,require包在assert基础上添加致命性行为。mock包独立于断言包,提供完整的mock功能。suite包依赖testing标准库,通过反射机制管理测试生命周期。http包封装httptest,简化HTTP测试。各包职责清晰,耦合度低。
    c.包导入示例
        ---
        // testify核心包导入和使用示例
        package overview

        import (
            "testing"

            // 1. assert包:非致命性断言
            "github.com/stretchr/testify/assert"

            // 2. require包:致命性断言
            "github.com/stretchr/testify/require"

            // 3. mock包:模拟对象
            "github.com/stretchr/testify/mock"

            // 4. suite包:测试套件
            "github.com/stretchr/testify/suite"

            // 5. http包:HTTP测试(可选)
            "github.com/stretchr/testify/http"
        )

        // ========== 包使用场景示例 ==========

        // 场景1:使用assert包进行基础测试
        func TestWithAssert(t *testing.T) {
            // 创建断言对象
            a := assert.New(t)

            // 执行多个断言,即使某个失败也继续执行
            a.Equal(5, Add(2, 3), "加法测试")
            a.NotZero(10, "非零测试")
            a.True(IsValid(), "布尔测试")

            // 所有断言都会执行,最后汇总报告失败
        }

        // 场景2:使用require包检查前置条件
        func TestWithRequire(t *testing.T) {
            r := require.New(t)

            // 检查前置条件,失败则立即终止
            config := LoadConfig()
            r.NotNil(config, "配置必须加载成功")

            // 如果config为nil,这里的代码不会执行
            r.Equal("localhost", config.Host)
            r.Equal(3306, config.Port)
        }

        // 场景3:使用mock包创建模拟对象
        func TestWithMock(t *testing.T) {
            // 创建mock对象
            mockRepo := new(MockRepository)

            // 设置期望
            mockRepo.On("Get", 1).Return("data", nil)

            // 执行测试
            result, err := mockRepo.Get(1)

            // 断言结果
            assert.NoError(t, err)
            assert.Equal(t, "data", result)

            // 验证mock期望
            mockRepo.AssertExpectations(t)
        }

        // 场景4:使用suite包组织测试
        type MyTestSuite struct {
            suite.Suite
            db   *Database
            repo *Repository
        }

        func (s *MyTestSuite) SetupSuite() {
            s.db = ConnectDatabase()
        }

        func (s *MyTestSuite) SetupTest() {
            s.repo = NewRepository(s.db)
        }

        func (s *MyTestSuite) TestSomething() {
            result := s.repo.Query()
            assert.NotNil(s.T(), result)
        }

        func (s *MyTestSuite) TearDownSuite() {
            s.db.Close()
        }

        func TestMyTestSuite(t *testing.T) {
            suite.Run(t, new(MyTestSuite))
        }

        // ========== 包组合使用示例 ==========

        // 实际项目中通常组合使用多个包
        func TestCombinedUsage(t *testing.T) {
            // 1. require检查前置条件
            r := require.New(t)
            db := ConnectDatabase()
            r.NotNil(db, "数据库连接必须成功")
            defer db.Close()

            // 2. mock创建依赖
            mockCache := new(MockCache)
            mockCache.On("Get", "key1").Return("value1", nil)

            // 3. assert验证结果
            a := assert.New(t)
            service := NewService(db, mockCache)
            result, err := service.Process("key1")

            a.NoError(err)
            a.Equal("value1", result)

            // 4. 验证mock调用
            mockCache.AssertExpectations(t)
        }

        // ========== 辅助类型定义 ==========

        type MockRepository struct {
            mock.Mock
        }

        func (m *MockRepository) Get(id int) (string, error) {
            args := m.Called(id)
            return args.String(0), args.Error(1)
        }

        type MockCache struct {
            mock.Mock
        }

        func (m *MockCache) Get(key string) (string, error) {
            args := m.Called(key)
            return args.String(0), args.Error(1)
        }

        type Config struct {
            Host string
            Port int
        }

        type Database struct{}
        type Repository struct{}
        type Service struct{}

        func Add(a, b int) int { return a + b }
        func IsValid() bool { return true }
        func LoadConfig() *Config { return &Config{Host: "localhost", Port: 3306} }
        func ConnectDatabase() *Database { return &Database{} }
        func (db *Database) Close() {}
        func NewRepository(db *Database) *Repository { return &Repository{} }
        func (r *Repository) Query() interface{} { return "result" }
        func NewService(db *Database, cache *MockCache) *Service { return &Service{} }
        func (s *Service) Process(key string) (string, error) { return "value1", nil }
        ---

02.功能定位对比
    a.assert vs require
        a.核心差异
            assert包提供非致命性断言,断言失败时记录错误但继续执行。适用于需要检查多个条件的场景,一次性发现所有问题。require包提供致命性断言,断言失败时立即终止测试。适用于前置条件检查,避免在错误状态下继续执行导致panic或误导性错误。
        b.选择建议
            前置条件使用require,如数据库连接、配置加载、必需资源初始化。多个独立检查使用assert,如验证对象的多个字段、检查集合中的多个元素。可以在同一测试中混合使用两种断言,先用require检查前置条件,再用assert验证多个结果。
        c.对比示例
            ---
            // assert vs require选择示例
            package comparison

            import (
                "testing"
                "github.com/stretchr/testify/assert"
                "github.com/stretchr/testify/require"
            )

            // ========== 错误用法示例 ==========

            // 错误1:前置条件使用assert(可能导致panic)
            func TestBadAssertUsage(t *testing.T) {
                a := assert.New(t)

                // 如果db为nil,断言失败但继续执行
                db := ConnectDatabase()
                a.NotNil(db)  // ❌ 错误:应该使用require

                // db可能为nil,这里会panic!
                db.Query("SELECT * FROM users")
            }

            // 错误2:多个独立检查使用require(只能发现第一个问题)
            func TestBadRequireUsage(t *testing.T) {
                r := require.New(t)

                user := GetUser(1)
                r.NotNil(user)

                // 如果Name错误,后续检查不会执行
                r.Equal("Alice", user.Name)  // ❌ 第一个失败就终止
                r.Equal(25, user.Age)        // 看不到这个问题
                r.True(user.Active)          // 看不到这个问题
            }

            // ========== 正确用法示例 ==========

            // 正确1:前置条件使用require
            func TestCorrectRequireUsage(t *testing.T) {
                r := require.New(t)
                a := assert.New(t)

                // require检查前置条件
                db := ConnectDatabase()
                r.NotNil(db, "数据库连接必须成功")
                defer db.Close()

                // 确保db不为nil后,安全地使用
                rows, err := db.Query("SELECT * FROM users")
                r.NoError(err, "查询必须成功")
                defer rows.Close()

                // assert检查多个结果
                a.True(rows.Next(), "至少有一条记录")
                a.NotNil(rows, "结果集不为空")
            }

            // 正确2:多个独立检查使用assert
            func TestCorrectAssertUsage(t *testing.T) {
                r := require.New(t)
                a := assert.New(t)

                // require检查对象存在
                user := GetUser(1)
                r.NotNil(user, "用户必须存在")

                // assert检查所有字段,一次性发现所有问题
                a.Equal("Alice", user.Name, "用户名检查")
                a.Equal(25, user.Age, "年龄检查")
                a.True(user.Active, "激活状态检查")
                a.NotEmpty(user.Email, "邮箱检查")
                // 即使某些断言失败,所有字段都会被检查
            }

            // 正确3:嵌套资源的正确处理
            func TestNestedResourceHandling(t *testing.T) {
                r := require.New(t)
                a := assert.New(t)

                // 第一层:数据库连接
                db := ConnectDatabase()
                r.NotNil(db)
                defer db.Close()

                // 第二层:事务
                tx, err := db.Begin()
                r.NoError(err)
                defer tx.Rollback()

                // 第三层:执行操作
                result, err := tx.Exec("INSERT INTO users VALUES (?, ?)", 1, "Alice")
                r.NoError(err)

                // 验证多个结果(使用assert)
                affected, _ := result.RowsAffected()
                a.Equal(int64(1), affected)

                lastID, _ := result.LastInsertId()
                a.Positive(lastID)
            }

            // ========== 实战场景 ==========

            // 场景:HTTP处理器测试
            func TestHTTPHandler(t *testing.T) {
                r := require.New(t)
                a := assert.New(t)

                // require:确保请求创建成功
                req, err := http.NewRequest("GET", "/users/1", nil)
                r.NoError(err)
                r.NotNil(req)

                // 执行请求
                rr := httptest.NewRecorder()
                handler := UserHandler{}
                handler.ServeHTTP(rr, req)

                // assert:检查多个响应属性
                a.Equal(http.StatusOK, rr.Code, "状态码检查")
                a.Contains(rr.Header().Get("Content-Type"), "application/json", "Content-Type检查")
                a.NotEmpty(rr.Body.String(), "响应体检查")
                a.JSONEq(`{"id":1,"name":"Alice"}`, rr.Body.String(), "JSON内容检查")
            }

            type User struct {
                Name   string
                Age    int
                Active bool
                Email  string
            }

            type UserHandler struct{}

            func (h UserHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
                w.Header().Set("Content-Type", "application/json")
                w.WriteHeader(http.StatusOK)
                w.Write([]byte(`{"id":1,"name":"Alice"}`))
            }

            func GetUser(id int) *User {
                return &User{Name: "Alice", Age: 25, Active: true, Email: "alice@example.com"}
            }
            ---
    b.mock vs 手写mock
        mock包提供结构化的mock框架,通过On-Called-Assert模式实现期望设置和验证。相比手写mock对象,代码量减少80%以上,且支持参数匹配、调用次数验证等高级功能。手写mock适合简单场景,mock包适合复杂依赖和精确验证。
    c.suite vs 函数式测试
        suite包将测试组织成结构体,支持SetUp/TearDown钩子和共享状态。适合需要复杂初始化、资源管理、多个相关测试的场景。传统函数式测试简单直接,适合独立的单元测试。suite增加了组织性,但也引入了一定复杂度。

03.使用频率统计
    a.包使用优先级
        assert包是最常用的包,几乎所有测试都会使用。require包在需要前置条件检查时使用,使用频率约为assert的30-40%。mock包在需要隔离依赖时使用,使用频率约20-30%。suite包在大型项目和集成测试中使用,使用频率约10-15%。http包在Web项目中使用,使用频率约5-10%。
    b.项目类型差异
        纯逻辑库项目主要使用assert和require包,mock使用较少。微服务项目大量使用mock包隔离外部依赖,suite包组织集成测试。Web应用项目广泛使用http包测试API,配合mock和suite。数据密集型项目使用suite管理数据库连接和测试数据。
    c.学习路径建议
        ---
        // testify学习路径建议
        package learning

        /*
        ========== 第一阶段:基础入门(1-2天)==========

        目标:掌握基础断言,能编写简单单元测试

        学习内容:
        1. assert包基础
           - Equal, NotEqual
           - Nil, NotNil
           - True, False
           - NoError, Error

        2. 基本测试编写
           - 创建断言对象
           - 编写测试函数
           - 运行测试

        实践项目:
        - 为简单函数编写测试
        - 测试数据结构操作
        - 测试错误处理

        ========== 第二阶段:进阶应用(3-5天)==========

        目标:掌握require、mock基础,能测试复杂业务逻辑

        学习内容:
        1. require包
           - 理解致命性断言
           - 前置条件检查
           - 资源管理

        2. mock包基础
           - 创建mock对象
           - On-Return模式
           - AssertExpectations验证

        3. 更多断言方法
           - Contains, ElementsMatch
           - Greater, Less
           - Regexp, JSONEq

        实践项目:
        - 测试服务层代码
        - mock数据库接口
        - 测试业务规则

        ========== 第三阶段:高级特性(5-7天)==========

        目标:掌握suite、高级mock,能构建完整测试体系

        学习内容:
        1. suite包
           - 测试套件组织
           - 生命周期钩子
           - 测试夹具管理

        2. mock高级特性
           - 参数匹配器
           - 调用次数控制
           - 自定义行为

        3. http包
           - HTTP处理器测试
           - API集成测试

        实践项目:
        - 构建集成测试套件
        - 复杂mock场景
        - API端到端测试

        ========== 第四阶段:最佳实践(持续)==========

        目标:形成测试思维,建立团队测试规范

        学习内容:
        1. 测试组织架构
        2. CI/CD集成
        3. 测试覆盖率管理
        4. 性能测试
        5. 测试重构技巧

        实践项目:
        - 真实项目测试
        - 团队规范建立
        - 测试自动化
        */
        ---

04.包版本兼容性
    a.稳定性保证
        testify所有核心包保持API稳定,向后兼容性好。新版本不会破坏现有代码,新功能通过新方法提供。包之间版本同步,统一发布,避免版本冲突。
    b.依赖管理
        使用Go modules统一管理所有包的依赖。一次引入testify,所有包使用相同版本。go.mod自动处理版本锁定和依赖解析,确保构建可重现性。

2.2 assert包

01.包设计理念
    a.非致命性断言
        assert包的核心设计理念是非致命性断言,断言失败时记录错误但不终止测试执行。这使得一个测试函数可以执行多个断言,一次性发现所有问题,而不是每次只能看到第一个失败的断言。这种设计提高了测试的诊断效率。
    b.链式API设计
        assert包提供两种使用方式:直接调用包级别函数assert.Equal(t, expected, actual),或创建断言对象a := assert.New(t)然后调用a.Equal(expected, actual)。后者避免了重复传递testing.T参数,代码更简洁。
    c.详细错误信息
        断言失败时自动生成详细的错误信息,包括期望值、实际值、类型信息、差异对比等。对于复杂对象,提供格式化的diff输出,清晰标注差异位置。支持自定义错误消息,进一步增强可读性。
    d.设计示例
        ---
        // assert包设计理念示例
        package assertdesign

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        // ========== 使用方式1:包级别函数 ==========

        func TestPackageLevel(t *testing.T) {
            // 每次调用都传递t参数
            assert.Equal(t, 5, Add(2, 3))
            assert.NotNil(t, GetUser(1))
            assert.True(t, IsValid())
            assert.NoError(t, DoSomething())

            // 优点:直观简单
            // 缺点:需要重复传递t
        }

        // ========== 使用方式2:断言对象 ==========

        func TestAssertionObject(t *testing.T) {
            // 创建断言对象,只传递一次t
            a := assert.New(t)

            // 后续调用不需要传递t
            a.Equal(5, Add(2, 3))
            a.NotNil(GetUser(1))
            a.True(IsValid())
            a.NoError(DoSomething())

            // 优点:代码简洁
            // 缺点:需要额外一行创建对象
        }

        // ========== 非致命性演示 ==========

        func TestNonFatal(t *testing.T) {
            a := assert.New(t)

            user := GetUser(1)

            // 即使某个断言失败,所有断言都会执行
            a.NotNil(user)                    // 断言1
            a.Equal("Alice", user.Name)       // 断言2:即使断言1失败,这个也会执行
            a.Equal(25, user.Age)             // 断言3:继续执行
            a.True(user.Active)               // 断言4:继续执行
            a.NotEmpty(user.Email)            // 断言5:继续执行

            // 测试结束后会看到所有失败的断言,而不是只看到第一个
            t.Log("测试继续执行到这里")
        }

        // ========== 错误信息演示 ==========

        func TestDetailedErrorInfo(t *testing.T) {
            a := assert.New(t)

            type Product struct {
                ID    int
                Name  string
                Price float64
                Tags  []string
            }

            expected := Product{
                ID:    1,
                Name:  "Laptop",
                Price: 999.99,
                Tags:  []string{"electronics", "computer"},
            }

            actual := Product{
                ID:    1,
                Name:  "Laptop",
                Price: 1099.99,  // 不同
                Tags:  []string{"electronics"},  // 不同
            }

            // assert会生成详细的diff信息
            a.Equal(expected, actual, "产品信息应该匹配")

            /*
            输出示例:
            Error Trace:    test.go:65
            Error:          Not equal:
                            expected: Product{ID:1, Name:"Laptop", Price:999.99, Tags:["electronics", "computer"]}
                            actual  : Product{ID:1, Name:"Laptop", Price:1099.99, Tags:["electronics"]}

                            Diff:
                            --- Expected
                            +++ Actual
                            @@ -2,5 +2,5 @@
                              ID: 1,
                              Name: "Laptop",
                            - Price: 999.99,
                            + Price: 1099.99,
                            - Tags: ["electronics", "computer"]
                            + Tags: ["electronics"]
            Messages:       产品信息应该匹配
            Test:           TestDetailedErrorInfo
            */
        }

        // ========== 自定义错误消息 ==========

        func TestCustomMessages(t *testing.T) {
            a := assert.New(t)

            // 不带消息
            a.Equal(5, Add(2, 3))

            // 简单字符串消息
            a.Equal(10, Add(5, 5), "5+5应该等于10")

            // 格式化消息
            x, y := 3, 4
            a.Equal(7, Add(x, y), "Add(%d, %d)应该等于7", x, y)

            // 复杂消息
            user := GetUser(1)
            a.NotNil(user, "用户ID=%d应该存在,当前系统状态=%s", 1, GetSystemStatus())
        }

        // 辅助函数
        type User struct {
            Name   string
            Age    int
            Active bool
            Email  string
        }

        func Add(a, b int) int { return a + b }
        func GetUser(id int) *User { return &User{Name: "Alice", Age: 25, Active: true, Email: "alice@example.com"} }
        func IsValid() bool { return true }
        func DoSomething() error { return nil }
        func GetSystemStatus() string { return "running" }
        ---

02.核心断言方法
    a.相等性断言
        a.Equal系列
            Equal是最常用的断言方法,使用reflect.DeepEqual进行深度比较,支持所有Go类型包括结构体、切片、map等。NotEqual检查不相等。Same检查指针相同,NotSame检查指针不同。
        b.使用示例
            ---
            // 相等性断言示例
            package equality

            import (
                "testing"
                "github.com/stretchr/testify/assert"
            )

            func TestEqualityAssertions(t *testing.T) {
                a := assert.New(t)

                // ========== Equal:深度相等 ==========

                // 基本类型
                a.Equal(5, 2+3)
                a.Equal("hello", "hel"+"lo")
                a.Equal(3.14, 3.14)

                // 结构体
                type Point struct{ X, Y int }
                a.Equal(Point{1, 2}, Point{1, 2})

                // 切片
                a.Equal([]int{1, 2, 3}, []int{1, 2, 3})

                // map
                a.Equal(
                    map[string]int{"a": 1, "b": 2},
                    map[string]int{"a": 1, "b": 2},
                )

                // 指针(比较指向的值,不是指针地址)
                x, y := 42, 42
                a.Equal(&x, &y)  // 通过:值相等

                // ========== NotEqual:不相等 ==========

                a.NotEqual(5, 6)
                a.NotEqual("hello", "world")
                a.NotEqual([]int{1, 2}, []int{1, 3})

                // ========== Same:指针相同 ==========

                obj1 := &Point{1, 2}
                obj2 := obj1
                obj3 := &Point{1, 2}

                a.Same(obj1, obj2)     // 通过:指向同一对象
                a.NotSame(obj1, obj3)  // 通过:不同对象(虽然值相等)

                // ========== EqualValues:类型转换后相等 ==========

                // Equal会严格检查类型,EqualValues允许类型转换
                var i int = 5
                var i32 int32 = 5

                // a.Equal(i, i32)         // 失败:类型不同
                a.EqualValues(i, i32)   // 通过:值相等

                // ========== InDelta:浮点数近似相等 ==========

                // 浮点数精度问题
                a.InDelta(0.1+0.2, 0.3, 0.0001)  // 允许误差

                // InDeltaSlice:切片中每个元素都近似相等
                a.InDeltaSlice(
                    []float64{0.1, 0.2, 0.3},
                    []float64{0.10001, 0.20001, 0.30001},
                    0.001,
                )

                // InDeltaMapValues:map中每个值都近似相等
                a.InDeltaMapValues(
                    map[string]float64{"a": 0.1, "b": 0.2},
                    map[string]float64{"a": 0.10001, "b": 0.20001},
                    0.001,
                )

                // InEpsilon:相对误差检查
                a.InEpsilon(1000, 1001, 0.01)  // 允许1%误差
            }
            ---
    b.存在性断言
        a.Nil系列
            Nil检查值为nil,NotNil检查值不为nil。支持指针、接口、slice、map、channel、function等可为nil的类型。Zero检查零值,NotZero检查非零值,适用于所有类型。Empty检查空集合或零值,NotEmpty检查非空。
        b.使用示例
            ---
            // 存在性断言示例
            package existence

            import (
                "testing"
                "github.com/stretchr/testify/assert"
            )

            func TestExistenceAssertions(t *testing.T) {
                a := assert.New(t)

                // ========== Nil / NotNil ==========

                // 指针
                var ptr *int = nil
                a.Nil(ptr)

                x := 42
                a.NotNil(&x)

                // 接口
                var err error = nil
                a.Nil(err)

                err = errors.New("error")
                a.NotNil(err)

                // slice
                var s []int = nil
                a.Nil(s)

                s = []int{}
                a.NotNil(s)  // 注意:空切片不是nil

                // map
                var m map[string]int = nil
                a.Nil(m)

                m = make(map[string]int)
                a.NotNil(m)

                // channel
                var ch chan int = nil
                a.Nil(ch)

                ch = make(chan int)
                a.NotNil(ch)

                // ========== Zero / NotZero ==========

                // 零值检查(适用于所有类型)
                a.Zero(0)
                a.Zero("")
                a.Zero(false)
                a.Zero(0.0)

                // 非零值
                a.NotZero(1)
                a.NotZero("hello")
                a.NotZero(true)
                a.NotZero(3.14)

                // 结构体零值
                type Point struct{ X, Y int }
                a.Zero(Point{})
                a.NotZero(Point{X: 1})

                // ========== Empty / NotEmpty ==========

                // 字符串
                a.Empty("")
                a.NotEmpty("hello")

                // 切片
                a.Empty([]int{})
                a.NotEmpty([]int{1, 2, 3})

                // map
                a.Empty(map[string]int{})
                a.NotEmpty(map[string]int{"a": 1})

                // channel(检查长度)
                ch1 := make(chan int, 10)
                a.Empty(ch1)

                ch1 <- 1
                a.NotEmpty(ch1)

                // 零值也被视为empty
                a.Empty(0)
                a.Empty(false)
            }
            ---
    c.布尔断言
        True和False检查布尔值。看似简单,但在测试复杂条件时非常有用。支持自定义错误消息,清楚说明被测试的条件。
        ---
        // 布尔断言示例
        package boolean

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "strings"
        )

        func TestBooleanAssertions(t *testing.T) {
            a := assert.New(t)

            // ========== True / False ==========

            // 基础用法
            a.True(true)
            a.False(false)

            // 条件表达式
            a.True(5 > 3)
            a.False(5 < 3)

            // 函数返回值
            a.True(IsValid())
            a.False(IsExpired())

            // 复杂条件
            user := GetUser(1)
            a.True(user.Age >= 18, "用户应该是成年人")
            a.True(user.Active && user.Verified, "用户应该激活且已验证")

            // 字符串检查
            str := "hello world"
            a.True(strings.Contains(str, "world"))
            a.True(len(str) > 5)

            // 集合检查
            list := []int{1, 2, 3, 4, 5}
            a.True(len(list) == 5)
            a.True(list[0] == 1)

            // 自定义验证函数
            a.True(ValidateEmail("user@example.com"), "应该是有效的邮箱")
            a.False(ValidateEmail("invalid"), "应该是无效的邮箱")
        }

        type User struct {
            Age      int
            Active   bool
            Verified bool
        }

        func IsValid() bool { return true }
        func IsExpired() bool { return false }
        func GetUser(id int) User { return User{Age: 25, Active: true, Verified: true} }
        func ValidateEmail(email string) bool {
            return strings.Contains(email, "@")
        }
        ---

03.集合断言方法
    a.Contains系列
        Contains检查集合包含某个元素,支持字符串、slice、array、map。NotContains检查不包含。Subset检查子集关系。ElementsMatch检查两个集合包含相同元素(忽略顺序)。
    b.使用示例
        ---
        // 集合断言示例
        package collection

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func TestCollectionAssertions(t *testing.T) {
            a := assert.New(t)

            // ========== Contains / NotContains ==========

            // 字符串
            a.Contains("hello world", "world")
            a.NotContains("hello world", "goodbye")

            // 切片
            numbers := []int{1, 2, 3, 4, 5}
            a.Contains(numbers, 3)
            a.NotContains(numbers, 10)

            // map(检查键)
            m := map[string]int{"a": 1, "b": 2}
            a.Contains(m, "a")
            a.NotContains(m, "c")

            // ========== Subset / NotSubset ==========

            list := []int{1, 2, 3, 4, 5}

            // 检查子集
            a.Subset(list, []int{2, 3})
            a.Subset(list, []int{1, 5})
            a.NotSubset(list, []int{1, 10})

            // ========== ElementsMatch ==========

            // 忽略顺序的相等检查
            a.ElementsMatch(
                []int{1, 2, 3},
                []int{3, 2, 1},
            )

            // 包含重复元素也能正确处理
            a.ElementsMatch(
                []int{1, 2, 2, 3},
                []int{2, 3, 1, 2},
            )

            // 字符串切片
            a.ElementsMatch(
                []string{"apple", "banana", "cherry"},
                []string{"cherry", "apple", "banana"},
            )

            // ========== Len ==========

            // 检查长度
            a.Len([]int{1, 2, 3}, 3)
            a.Len("hello", 5)
            a.Len(map[string]int{"a": 1, "b": 2}, 2)

            ch := make(chan int, 5)
            ch <- 1
            ch <- 2
            a.Len(ch, 2)

            // ========== Unique ==========

            // 检查元素唯一性
            a.Unique([]int{1, 2, 3, 4})        // 通过
            // a.Unique([]int{1, 2, 2, 3})     // 失败:有重复

            // ========== Condition ==========

            // 自定义条件检查集合
            a.Condition(func() bool {
                list := []int{1, 2, 3, 4, 5}
                sum := 0
                for _, v := range list {
                    sum += v
                }
                return sum == 15
            }, "列表总和应该是15")
        }
        ---

04.错误断言方法
    a.Error系列
        Error检查错误不为nil,NoError检查错误为nil。EqualError检查错误消息相等。ErrorIs检查错误链包含特定错误(Go 1.13+)。ErrorAs检查错误可转换为特定类型(Go 1.13+)。ErrorContains检查错误消息包含特定字符串。
    b.使用示例
        ---
        // 错误断言示例
        package errorhandling

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "errors"
            "fmt"
        )

        func TestErrorAssertions(t *testing.T) {
            a := assert.New(t)

            // ========== Error / NoError ==========

            // 检查有错误
            err1 := errors.New("something went wrong")
            a.Error(err1)

            // 检查无错误
            err2 := DoSomethingSuccess()
            a.NoError(err2)

            // ========== EqualError ==========

            // 检查错误消息精确匹配
            err3 := errors.New("file not found")
            a.EqualError(err3, "file not found")

            // ========== ErrorContains ==========

            // 检查错误消息包含子字符串
            err4 := errors.New("failed to connect to database: timeout")
            a.ErrorContains(err4, "database")
            a.ErrorContains(err4, "timeout")

            // ========== ErrorIs(Go 1.13+错误链)==========

            // 定义标准错误
            var ErrNotFound = errors.New("not found")
            var ErrPermission = errors.New("permission denied")

            // 包装错误
            wrappedErr := fmt.Errorf("failed to get user: %w", ErrNotFound)

            // 检查错误链
            a.ErrorIs(wrappedErr, ErrNotFound)  // 通过
            a.NotErrorIs(wrappedErr, ErrPermission)  // 通过

            // 多层包装
            doubleWrapped := fmt.Errorf("operation failed: %w", wrappedErr)
            a.ErrorIs(doubleWrapped, ErrNotFound)  // 仍然能检测到

            // ========== ErrorAs(类型断言)==========

            // 自定义错误类型
            type ValidationError struct {
                Field   string
                Message string
            }

            func (e *ValidationError) Error() string {
                return fmt.Sprintf("%s: %s", e.Field, e.Message)
            }

            // 创建并包装自定义错误
            valErr := &ValidationError{Field: "email", Message: "invalid format"}
            wrappedValErr := fmt.Errorf("validation failed: %w", valErr)

            // 检查是否可转换为特定类型
            var target *ValidationError
            a.ErrorAs(wrappedValErr, &target)
            a.Equal("email", target.Field)
            a.Equal("invalid format", target.Message)

            // ========== 实战示例:数据库操作 ==========

            // 场景:数据库查询
            user, err := GetUserByID(999)
            if a.Error(err, "应该返回错误") {
                // 只有err不为nil时才继续检查
                a.ErrorIs(err, ErrNotFound)
                a.Nil(user)
            }

            // 场景:成功操作
            user2, err := GetUserByID(1)
            a.NoError(err, "不应该有错误")
            a.NotNil(user2, "应该返回用户对象")
        }

        func DoSomethingSuccess() error {
            return nil
        }

        var ErrNotFound = errors.New("not found")

        type User struct {
            ID   int
            Name string
        }

        func GetUserByID(id int) (*User, error) {
            if id == 999 {
                return nil, fmt.Errorf("user query failed: %w", ErrNotFound)
            }
            return &User{ID: id, Name: "Alice"}, nil
        }
        ---

2.3 require包

01.包设计理念
    a.致命性断言
        require包的核心特性是致命性断言,断言失败时立即终止当前测试函数的执行。这通过调用testing.T的FailNow方法实现,该方法会立即终止当前goroutine。require包适用于前置条件检查,当前置条件不满足时,继续执行测试没有意义且可能导致panic或产生误导性错误。
    b.与assert包的关系
        require包的API与assert包完全一致,所有assert包的方法在require包都有对应版本。实现上,require包在assert包基础上添加了FailNow调用。开发者可以根据语义选择使用assert或require,而无需学习不同的API。
    c.使用场景
        require最适合检查测试的前置条件,如资源初始化、数据准备、依赖创建等。如果这些前置条件不满足,后续测试代码会在错误状态下执行,产生大量无意义的错误信息甚至panic。使用require可以快速失败快速反馈,提高测试的诊断效率。
    d.设计示例
        ---
        // require包设计理念示例
        package requiredesign

        import (
            "testing"
            "github.com/stretchr/testify/require"
            "github.com/stretchr/testify/assert"
            "database/sql"
        )

        // ========== 场景1:资源初始化 ==========

        // 错误示例:使用assert(可能导致panic)
        func TestBadResourceInit(t *testing.T) {
            a := assert.New(t)

            // 数据库连接失败,但测试继续
            db, err := sql.Open("mysql", "invalid-connection")
            a.NoError(err)  // ❌ 失败但继续执行

            // db可能为nil,这里会panic!
            rows, _ := db.Query("SELECT * FROM users")
            rows.Close()
        }

        // 正确示例:使用require(立即终止)
        func TestGoodResourceInit(t *testing.T) {
            r := require.New(t)

            // 数据库连接失败,立即终止测试
            db, err := sql.Open("mysql", "valid-connection")
            r.NoError(err, "数据库连接必须成功")  // ✅ 失败立即终止
            defer db.Close()

            // 确保db不为nil后才执行
            rows, err := db.Query("SELECT * FROM users")
            r.NoError(err)
            defer rows.Close()
        }

        // ========== 场景2:对象存在性检查 ==========

        // 错误示例:使用assert(可能访问nil)
        func TestBadNilCheck(t *testing.T) {
            a := assert.New(t)

            config := LoadConfig()
            a.NotNil(config)  // ❌ 失败但继续

            // config可能为nil,访问字段会panic
            a.Equal("localhost", config.Host)  // panic!
        }

        // 正确示例:使用require(安全终止)
        func TestGoodNilCheck(t *testing.T) {
            r := require.New(t)
            a := assert.New(t)

            config := LoadConfig()
            r.NotNil(config, "配置必须加载成功")  // ✅ 失败立即终止

            // 确保config不为nil后才访问字段
            a.Equal("localhost", config.Host)
            a.Equal(3306, config.Port)
        }

        // ========== 场景3:多层依赖初始化 ==========

        func TestMultiLayerInit(t *testing.T) {
            r := require.New(t)
            a := assert.New(t)

            // 第一层:配置
            config := LoadConfig()
            r.NotNil(config, "配置必须存在")

            // 第二层:数据库
            db, err := ConnectDB(config.DBHost)
            r.NoError(err, "数据库连接必须成功")
            r.NotNil(db)
            defer db.Close()

            // 第三层:仓库
            repo := NewUserRepository(db)
            r.NotNil(repo, "仓库初始化必须成功")

            // 第四层:服务
            service := NewUserService(repo)
            r.NotNil(service, "服务初始化必须成功")

            // 现在可以安全地测试业务逻辑(使用assert)
            users, err := service.GetAllUsers()
            a.NoError(err)
            a.NotEmpty(users)
        }

        // ========== 场景4:测试数据准备 ==========

        func TestDataPreparation(t *testing.T) {
            r := require.New(t)
            a := assert.New(t)

            // 准备测试数据(必须成功)
            db := SetupTestDB(t)
            r.NotNil(db)
            defer CleanupTestDB(t, db)

            // 插入测试数据(必须成功)
            err := InsertTestUsers(db, []User{
                {Name: "Alice", Age: 25},
                {Name: "Bob", Age: 30},
            })
            r.NoError(err, "测试数据插入必须成功")

            // 现在测试查询功能(可以用assert)
            users, err := QueryUsers(db)
            a.NoError(err)
            a.Len(users, 2)
            a.Equal("Alice", users[0].Name)
        }

        // ========== 场景5:文件操作 ==========

        func TestFileOperations(t *testing.T) {
            r := require.New(t)
            a := assert.New(t)

            // 创建临时目录(必须成功)
            tmpDir, err := os.MkdirTemp("", "test-*")
            r.NoError(err, "临时目录创建必须成功")
            defer os.RemoveAll(tmpDir)

            // 创建测试文件(必须成功)
            testFile := filepath.Join(tmpDir, "test.txt")
            err = os.WriteFile(testFile, []byte("test content"), 0644)
            r.NoError(err, "文件写入必须成功")

            // 测试读取功能(可以用assert)
            content, err := os.ReadFile(testFile)
            a.NoError(err)
            a.Equal("test content", string(content))
        }

        // 辅助类型定义
        type Config struct {
            Host   string
            Port   int
            DBHost string
        }

        type User struct {
            Name string
            Age  int
        }

        func LoadConfig() *Config {
            return &Config{Host: "localhost", Port: 8080, DBHost: "localhost:3306"}
        }

        func ConnectDB(host string) (*sql.DB, error) {
            return nil, nil
        }

        func NewUserRepository(db *sql.DB) interface{} {
            return &struct{}{}
        }

        func NewUserService(repo interface{}) interface{} {
            return &struct{}{}
        }

        func SetupTestDB(t *testing.T) *sql.DB {
            return nil
        }

        func CleanupTestDB(t *testing.T, db *sql.DB) {}

        func InsertTestUsers(db *sql.DB, users []User) error {
            return nil
        }

        func QueryUsers(db *sql.DB) ([]User, error) {
            return []User{{Name: "Alice", Age: 25}, {Name: "Bob", Age: 30}}, nil
        }
        ---

02.核心方法
    a.API完全一致
        require包提供的所有方法与assert包一一对应,包括Equal、NotEqual、Nil、NotNil、True、False、NoError、Error、Contains、Len等所有断言方法。唯一的区别是行为:assert继续执行,require立即终止。
    b.方法对照
        ---
        // require包核心方法示例
        package requiremethods

        import (
            "testing"
            "github.com/stretchr/testify/require"
            "github.com/stretchr/testify/assert"
        )

        func TestRequireMethods(t *testing.T) {
            r := require.New(t)

            // ========== 相等性方法 ==========

            r.Equal(5, Add(2, 3))
            r.NotEqual(5, Add(2, 2))
            r.EqualValues(int32(5), int64(5))

            // ========== 存在性方法 ==========

            config := LoadConfig()
            r.NotNil(config)
            r.NotZero(config.Port)
            r.NotEmpty(config.Host)

            // ========== 布尔方法 ==========

            r.True(config.Port > 0)
            r.False(config.Host == "")

            // ========== 集合方法 ==========

            users := GetUsers()
            r.Len(users, 3)
            r.Contains(users, "Alice")
            r.NotContains(users, "Unknown")

            // ========== 错误方法 ==========

            err := ValidateConfig(config)
            r.NoError(err)

            err2 := ValidateConfig(nil)
            r.Error(err2)
            r.ErrorContains(err2, "config is nil")

            // ========== 类型方法 ==========

            var obj interface{} = "hello"
            r.IsType("", obj)
            r.Implements((*fmt.Stringer)(nil), obj)

            // ========== panic方法 ==========

            r.Panics(func() {
                panic("test panic")
            })

            r.NotPanics(func() {
                _ = Add(2, 3)
            })
        }

        // ========== require vs assert 方法对比 ==========

        func TestRequireVsAssert(t *testing.T) {
            r := require.New(t)
            a := assert.New(t)

            // require:前置条件检查
            db := ConnectDatabase()
            r.NotNil(db)  // 失败则终止
            defer db.Close()

            // assert:多个独立检查
            users, err := db.QueryUsers()
            a.NoError(err)         // 失败继续
            a.NotEmpty(users)      // 失败继续
            a.Len(users, 5)        // 失败继续
            a.Equal("Alice", users[0].Name)  // 失败继续
            // 可以看到所有失败的断言
        }

        // 辅助函数
        func Add(a, b int) int { return a + b }

        type Config struct {
            Host string
            Port int
        }

        func LoadConfig() *Config {
            return &Config{Host: "localhost", Port: 8080}
        }

        func GetUsers() []string {
            return []string{"Alice", "Bob", "Charlie"}
        }

        func ValidateConfig(config *Config) error {
            if config == nil {
                return errors.New("config is nil")
            }
            return nil
        }

        type Database struct{}

        func ConnectDatabase() *Database {
            return &Database{}
        }

        func (db *Database) Close() {}

        func (db *Database) QueryUsers() ([]User, error) {
            return []User{{Name: "Alice"}}, nil
        }
        ---

03.实战模式
    a.前置条件检查模式
        在测试开始时使用require检查所有前置条件,确保测试环境正确初始化。包括资源创建、配置加载、依赖注入、测试数据准备等。这些步骤失败意味着测试无法正常进行,应该立即终止。
    b.资源初始化模式
        使用require确保资源初始化成功,配合defer进行资源清理。这是Go语言资源管理的标准模式,require确保资源可用,defer确保资源释放。
    c.实战示例
        ---
        // require包实战模式
        package requirepatterns

        import (
            "testing"
            "github.com/stretchr/testify/require"
            "github.com/stretchr/testify/assert"
            "database/sql"
            "context"
            "time"
        )

        // ========== 模式1:完整的集成测试 ==========

        func TestIntegrationPattern(t *testing.T) {
            r := require.New(t)
            a := assert.New(t)

            // 阶段1:环境准备(require)
            config := LoadTestConfig()
            r.NotNil(config, "测试配置必须加载")

            // 阶段2:数据库连接(require)
            db, err := sql.Open("postgres", config.DatabaseURL)
            r.NoError(err, "数据库连接必须成功")
            r.NotNil(db)
            defer db.Close()

            // 验证连接
            ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
            defer cancel()
            err = db.PingContext(ctx)
            r.NoError(err, "数据库ping必须成功")

            // 阶段3:事务准备(require)
            tx, err := db.BeginTx(ctx, nil)
            r.NoError(err, "事务开始必须成功")
            defer tx.Rollback()

            // 阶段4:测试数据准备(require)
            _, err = tx.ExecContext(ctx, "INSERT INTO users (name, email) VALUES ($1, $2)",
                "Alice", "alice@example.com")
            r.NoError(err, "测试数据插入必须成功")

            // 阶段5:执行测试(assert)
            var name, email string
            err = tx.QueryRowContext(ctx, "SELECT name, email FROM users WHERE name = $1", "Alice").
                Scan(&name, &email)
            a.NoError(err)
            a.Equal("Alice", name)
            a.Equal("alice@example.com", email)
        }

        // ========== 模式2:HTTP服务测试 ==========

        func TestHTTPServicePattern(t *testing.T) {
            r := require.New(t)
            a := assert.New(t)

            // 阶段1:启动测试服务器(require)
            server := NewTestServer()
            r.NotNil(server)
            defer server.Close()

            err := server.Start()
            r.NoError(err, "服务器启动必须成功")

            // 等待服务器就绪
            r.Eventually(func() bool {
                return server.IsReady()
            }, 5*time.Second, 100*time.Millisecond, "服务器必须在5秒内就绪")

            // 阶段2:创建HTTP客户端(require)
            client := &http.Client{Timeout: 5 * time.Second}
            r.NotNil(client)

            // 阶段3:执行测试请求(assert)
            resp, err := client.Get(server.URL + "/health")
            a.NoError(err)
            a.Equal(http.StatusOK, resp.StatusCode)
            defer resp.Body.Close()

            body, err := io.ReadAll(resp.Body)
            a.NoError(err)
            a.Contains(string(body), "healthy")
        }

        // ========== 模式3:文件系统测试 ==========

        func TestFileSystemPattern(t *testing.T) {
            r := require.New(t)
            a := assert.New(t)

            // 阶段1:创建临时目录(require)
            tmpDir, err := os.MkdirTemp("", "test-*")
            r.NoError(err, "临时目录创建必须成功")
            defer os.RemoveAll(tmpDir)

            // 阶段2:创建子目录结构(require)
            dataDir := filepath.Join(tmpDir, "data")
            err = os.MkdirAll(dataDir, 0755)
            r.NoError(err, "子目录创建必须成功")

            // 阶段3:创建测试文件(require)
            testFile := filepath.Join(dataDir, "test.json")
            testData := []byte(`{"name":"Alice","age":25}`)
            err = os.WriteFile(testFile, testData, 0644)
            r.NoError(err, "测试文件创建必须成功")

            // 验证文件存在
            _, err = os.Stat(testFile)
            r.NoError(err, "文件必须存在")

            // 阶段4:测试文件操作(assert)
            content, err := os.ReadFile(testFile)
            a.NoError(err)
            a.JSONEq(string(testData), string(content))

            // 测试修改文件
            newData := []byte(`{"name":"Bob","age":30}`)
            err = os.WriteFile(testFile, newData, 0644)
            a.NoError(err)

            content, err = os.ReadFile(testFile)
            a.NoError(err)
            a.JSONEq(string(newData), string(content))
        }

        // ========== 模式4:并发测试 ==========

        func TestConcurrencyPattern(t *testing.T) {
            r := require.New(t)
            a := assert.New(t)

            // 阶段1:创建并发安全的数据结构(require)
            cache := NewSafeCache()
            r.NotNil(cache)

            // 阶段2:并发写入
            const goroutines = 100
            const itemsPerGoroutine = 10

            done := make(chan bool, goroutines)
            for i := 0; i < goroutines; i++ {
                go func(id int) {
                    for j := 0; j < itemsPerGoroutine; j++ {
                        key := fmt.Sprintf("key-%d-%d", id, j)
                        cache.Set(key, id*itemsPerGoroutine+j)
                    }
                    done <- true
                }(i)
            }

            // 等待所有goroutine完成
            for i := 0; i < goroutines; i++ {
                select {
                case <-done:
                case <-time.After(5 * time.Second):
                    r.Fail("并发写入超时")
                }
            }

            // 阶段3:验证结果(assert)
            expectedSize := goroutines * itemsPerGoroutine
            a.Equal(expectedSize, cache.Size())

            // 验证数据完整性
            for i := 0; i < goroutines; i++ {
                for j := 0; j < itemsPerGoroutine; j++ {
                    key := fmt.Sprintf("key-%d-%d", i, j)
                    value, exists := cache.Get(key)
                    a.True(exists, "键应该存在: %s", key)
                    a.Equal(i*itemsPerGoroutine+j, value)
                }
            }
        }

        // ========== 模式5:错误场景测试 ==========

        func TestErrorScenariosPattern(t *testing.T) {
            r := require.New(t)
            a := assert.New(t)

            // 场景1:测试正常流程(作为基准)
            t.Run("正常流程", func(t *testing.T) {
                r := require.New(t)
                a := assert.New(t)

                service := NewUserService()
                r.NotNil(service)

                user, err := service.CreateUser("Alice", "alice@example.com")
                a.NoError(err)
                a.NotNil(user)
                a.Equal("Alice", user.Name)
            })

            // 场景2:测试参数验证错误
            t.Run("空名称错误", func(t *testing.T) {
                r := require.New(t)
                a := assert.New(t)

                service := NewUserService()
                r.NotNil(service)

                user, err := service.CreateUser("", "alice@example.com")
                a.Error(err)
                a.Nil(user)
                a.ErrorContains(err, "name is required")
            })

            // 场景3:测试资源不足错误
            t.Run("数据库连接失败", func(t *testing.T) {
                r := require.New(t)
                a := assert.New(t)

                // 模拟数据库不可用
                service := NewUserServiceWithDB(nil)
                r.NotNil(service)

                user, err := service.CreateUser("Alice", "alice@example.com")
                a.Error(err)
                a.Nil(user)
                a.ErrorContains(err, "database")
            })
        }

        // 辅助类型定义
        type TestConfig struct {
            DatabaseURL string
        }

        type TestServer struct {
            URL string
        }

        type SafeCache struct {
            data map[string]int
            mu   sync.RWMutex
        }

        type UserService struct {
            db interface{}
        }

        func LoadTestConfig() *TestConfig {
            return &TestConfig{DatabaseURL: "postgres://localhost/test"}
        }

        func NewTestServer() *TestServer {
            return &TestServer{URL: "http://localhost:8080"}
        }

        func (s *TestServer) Start() error {
            return nil
        }

        func (s *TestServer) IsReady() bool {
            return true
        }

        func (s *TestServer) Close() {}

        func NewSafeCache() *SafeCache {
            return &SafeCache{data: make(map[string]int)}
        }

        func (c *SafeCache) Set(key string, value int) {
            c.mu.Lock()
            defer c.mu.Unlock()
            c.data[key] = value
        }

        func (c *SafeCache) Get(key string) (int, bool) {
            c.mu.RLock()
            defer c.mu.RUnlock()
            val, ok := c.data[key]
            return val, ok
        }

        func (c *SafeCache) Size() int {
            c.mu.RLock()
            defer c.mu.RUnlock()
            return len(c.data)
        }

        func NewUserService() *UserService {
            return &UserService{}
        }

        func NewUserServiceWithDB(db interface{}) *UserService {
            return &UserService{db: db}
        }

        func (s *UserService) CreateUser(name, email string) (*User, error) {
            if name == "" {
                return nil, errors.New("name is required")
            }
            if s.db == nil {
                return nil, errors.New("database not available")
            }
            return &User{Name: name}, nil
        }
        ---

04.最佳实践
    a.require优先原则
        在测试开始时,优先使用require检查所有前置条件。确保测试环境正确后,再用assert进行业务逻辑验证。这种模式使测试更加健壮,错误信息更加清晰。
    b.资源管理原则
        所有通过require初始化的资源都应该配合defer进行清理。即使测试失败,defer也会执行,确保资源不泄漏。这是Go语言的最佳实践,require强化了这个模式。
    c.错误信息原则
        require断言失败会立即终止测试,因此错误消息特别重要。应该提供清晰的错误消息,说明失败的原因和影响。帮助开发者快速定位问题根源。

2.4 mock包

01.Mock框架概述
    a.设计目标
        testify的mock包提供完整的模拟对象框架,用于在测试中隔离外部依赖。通过mock,可以控制依赖的行为、验证方法调用、模拟各种场景包括成功、失败、超时等。Mock使单元测试真正成为单元测试,而不是集成测试。
    b.核心机制
        mock包的核心是Mock结构体,包含期望列表ExpectedCalls和实际调用列表Calls。通过On方法设置期望,Called方法记录调用,AssertExpectations方法验证期望。使用mutex保证线程安全,支持并发测试场景。
    c.使用流程
        Mock测试的标准流程包括四个步骤:定义接口、创建Mock对象、设置期望、执行测试、验证调用。这种结构化流程确保测试的完整性和可维护性。
    d.基础示例
        ---
        // mock包基础示例
        package mockbasic

        import (
            "testing"
            "github.com/stretchr/testify/mock"
            "github.com/stretchr/testify/assert"
            "errors"
        )

        // ========== 步骤1:定义接口 ==========

        // 数据仓库接口
        type UserRepository interface {
            GetByID(id int) (*User, error)
            Save(user *User) error
            Delete(id int) error
            FindAll() ([]*User, error)
        }

        // 业务服务
        type UserService struct {
            repo UserRepository
        }

        func (s *UserService) GetUser(id int) (*User, error) {
            return s.repo.GetByID(id)
        }

        func (s *UserService) CreateUser(name, email string) error {
            user := &User{Name: name, Email: email}
            return s.repo.Save(user)
        }

        // ========== 步骤2:创建Mock对象 ==========

        // Mock对象(嵌入mock.Mock)
        type MockUserRepository struct {
            mock.Mock
        }

        // 实现接口方法
        func (m *MockUserRepository) GetByID(id int) (*User, error) {
            // Called记录调用并返回预设值
            args := m.Called(id)

            // 处理nil返回值
            if args.Get(0) == nil {
                return nil, args.Error(1)
            }
            return args.Get(0).(*User), args.Error(1)
        }

        func (m *MockUserRepository) Save(user *User) error {
            args := m.Called(user)
            return args.Error(0)
        }

        func (m *MockUserRepository) Delete(id int) error {
            args := m.Called(id)
            return args.Error(0)
        }

        func (m *MockUserRepository) FindAll() ([]*User, error) {
            args := m.Called()
            if args.Get(0) == nil {
                return nil, args.Error(1)
            }
            return args.Get(0).([]*User), args.Error(1)
        }

        // ========== 步骤3:编写测试 ==========

        // 测试1:基础Mock使用
        func TestBasicMock(t *testing.T) {
            // 创建mock对象
            mockRepo := new(MockUserRepository)

            // 设置期望:当调用GetByID(1)时返回指定用户
            expectedUser := &User{ID: 1, Name: "Alice", Email: "alice@example.com"}
            mockRepo.On("GetByID", 1).Return(expectedUser, nil)

            // 创建服务并注入mock
            service := &UserService{repo: mockRepo}

            // 执行测试
            user, err := service.GetUser(1)

            // 断言结果
            assert.NoError(t, err)
            assert.Equal(t, expectedUser, user)

            // 验证mock期望
            mockRepo.AssertExpectations(t)
        }

        // 测试2:模拟错误场景
        func TestMockError(t *testing.T) {
            mockRepo := new(MockUserRepository)

            // 设置期望:返回错误
            mockRepo.On("GetByID", 999).Return(nil, errors.New("user not found"))

            service := &UserService{repo: mockRepo}
            user, err := service.GetUser(999)

            // 验证错误处理
            assert.Error(t, err)
            assert.Nil(t, user)
            assert.Contains(t, err.Error(), "not found")

            mockRepo.AssertExpectations(t)
        }

        // 测试3:多次调用
        func TestMultipleCalls(t *testing.T) {
            mockRepo := new(MockUserRepository)

            // 为不同参数设置不同期望
            mockRepo.On("GetByID", 1).Return(&User{ID: 1, Name: "Alice"}, nil)
            mockRepo.On("GetByID", 2).Return(&User{ID: 2, Name: "Bob"}, nil)
            mockRepo.On("GetByID", 3).Return(nil, errors.New("not found"))

            service := &UserService{repo: mockRepo}

            // 测试第一次调用
            user1, err1 := service.GetUser(1)
            assert.NoError(t, err1)
            assert.Equal(t, "Alice", user1.Name)

            // 测试第二次调用
            user2, err2 := service.GetUser(2)
            assert.NoError(t, err2)
            assert.Equal(t, "Bob", user2.Name)

            // 测试第三次调用(错误场景)
            user3, err3 := service.GetUser(3)
            assert.Error(t, err3)
            assert.Nil(t, user3)

            mockRepo.AssertExpectations(t)
        }

        // 测试4:验证方法调用
        func TestVerifyCall(t *testing.T) {
            mockRepo := new(MockUserRepository)

            newUser := &User{Name: "Charlie", Email: "charlie@example.com"}
            mockRepo.On("Save", newUser).Return(nil)

            service := &UserService{repo: mockRepo}
            err := service.CreateUser("Charlie", "charlie@example.com")

            assert.NoError(t, err)

            // 验证Save方法被调用了一次,参数正确
            mockRepo.AssertCalled(t, "Save", newUser)
            mockRepo.AssertNumberOfCalls(t, "Save", 1)
        }

        // 数据类型定义
        type User struct {
            ID    int
            Name  string
            Email string
        }
        ---

02.参数匹配器
    a.匹配器类型
        testify提供多种参数匹配器。Anything匹配任意值,AnythingOfType匹配特定类型,MatchedBy使用自定义函数匹配。这些匹配器增强了mock的灵活性,可以处理复杂的参数验证场景。
    b.匹配器示例
        ---
        // 参数匹配器详解
        package matchers

        import (
            "testing"
            "github.com/stretchr/testify/mock"
            "github.com/stretchr/testify/assert"
        )

        // ========== Anything匹配器 ==========

        func TestAnythingMatcher(t *testing.T) {
            mockRepo := new(MockUserRepository)

            // Anything匹配任意参数
            mockRepo.On("GetByID", mock.Anything).Return(&User{Name: "Default"}, nil)

            // 任何ID都会匹配
            user1, _ := mockRepo.GetByID(1)
            assert.Equal(t, "Default", user1.Name)

            user2, _ := mockRepo.GetByID(999)
            assert.Equal(t, "Default", user2.Name)

            mockRepo.AssertExpectations(t)
        }

        // ========== AnythingOfType匹配器 ==========

        func TestAnythingOfTypeMatcher(t *testing.T) {
            mockRepo := new(MockUserRepository)

            // AnythingOfType匹配特定类型
            mockRepo.On("Save", mock.AnythingOfType("*mockbasic.User")).Return(nil)

            // 任何User指针都会匹配
            err1 := mockRepo.Save(&User{Name: "Alice"})
            assert.NoError(t, err1)

            err2 := mockRepo.Save(&User{Name: "Bob"})
            assert.NoError(t, err2)

            mockRepo.AssertExpectations(t)
        }

        // ========== MatchedBy自定义匹配器 ==========

        func TestMatchedByMatcher(t *testing.T) {
            mockRepo := new(MockUserRepository)

            // 自定义匹配函数:只匹配正数ID
            mockRepo.On("GetByID", mock.MatchedBy(func(id int) bool {
                return id > 0 && id < 1000
            })).Return(&User{Name: "Valid ID"}, nil)

            // 匹配成功
            user1, _ := mockRepo.GetByID(1)
            assert.Equal(t, "Valid ID", user1.Name)

            user2, _ := mockRepo.GetByID(500)
            assert.Equal(t, "Valid ID", user2.Name)

            // 不匹配的调用会panic
            // mockRepo.GetByID(1000)  // panic

            mockRepo.AssertExpectations(t)
        }

        // ========== 复杂匹配器示例 ==========

        func TestComplexMatchers(t *testing.T) {
            mockRepo := new(MockUserRepository)

            // 匹配特定条件的User对象
            mockRepo.On("Save", mock.MatchedBy(func(user *User) bool {
                // 只接受年龄在18-65之间的用户
                return user.Age >= 18 && user.Age <= 65 && user.Email != ""
            })).Return(nil)

            // 匹配成功
            err1 := mockRepo.Save(&User{Name: "Alice", Age: 25, Email: "alice@example.com"})
            assert.NoError(t, err1)

            // 不匹配(年龄太小)
            // mockRepo.Save(&User{Name: "Bob", Age: 16, Email: "bob@example.com"})  // panic

            mockRepo.AssertExpectations(t)
        }

        // ========== 混合使用匹配器 ==========

        func TestMixedMatchers(t *testing.T) {
            mockService := new(MockService)

            // 第一个参数精确匹配,第二个参数任意
            mockService.On("Process", 1, mock.Anything).Return("result1", nil)

            // 两个参数都用匹配器
            mockService.On("Process",
                mock.MatchedBy(func(id int) bool { return id > 100 }),
                mock.AnythingOfType("string"),
            ).Return("result2", nil)

            result1, _ := mockService.Process(1, "any value")
            assert.Equal(t, "result1", result1)

            result2, _ := mockService.Process(200, "test")
            assert.Equal(t, "result2", result2)

            mockService.AssertExpectations(t)
        }

        // Mock Service定义
        type MockService struct {
            mock.Mock
        }

        func (m *MockService) Process(id int, data string) (string, error) {
            args := m.Called(id, data)
            return args.String(0), args.Error(1)
        }

        type User struct {
            Name  string
            Age   int
            Email string
        }

        type MockUserRepository struct {
            mock.Mock
        }

        func (m *MockUserRepository) GetByID(id int) (*User, error) {
            args := m.Called(id)
            if args.Get(0) == nil {
                return nil, args.Error(1)
            }
            return args.Get(0).(*User), args.Error(1)
        }

        func (m *MockUserRepository) Save(user *User) error {
            args := m.Called(user)
            return args.Error(0)
        }
        ---

03.调用控制
    a.调用次数控制
        testify提供多种调用次数控制方法。Once表示调用一次,Twice表示调用两次,Times(n)表示调用n次。Maybe表示可选调用。通过调用次数控制,可以精确验证方法被调用的情况。
    b.调用行为控制
        Run方法可以在调用时执行自定义函数,After方法可以延迟返回模拟超时,WaitUntil方法可以等待特定时间。这些方法让mock更加灵活,可以模拟各种复杂场景。
    c.控制示例
        ---
        // 调用控制示例
        package callcontrol

        import (
            "testing"
            "github.com/stretchr/testify/mock"
            "github.com/stretchr/testify/assert"
            "time"
        )

        // ========== 调用次数控制 ==========

        func TestCallTimes(t *testing.T) {
            mockRepo := new(MockUserRepository)

            // Once:期望调用一次
            mockRepo.On("GetByID", 1).Return(&User{Name: "Alice"}, nil).Once()

            // Twice:期望调用两次
            mockRepo.On("Save", mock.Anything).Return(nil).Twice()

            // Times(n):期望调用n次
            mockRepo.On("Delete", mock.Anything).Return(nil).Times(3)

            // 执行调用
            mockRepo.GetByID(1)

            mockRepo.Save(&User{Name: "Bob"})
            mockRepo.Save(&User{Name: "Charlie"})

            mockRepo.Delete(1)
            mockRepo.Delete(2)
            mockRepo.Delete(3)

            // 验证调用次数
            mockRepo.AssertExpectations(t)
            mockRepo.AssertNumberOfCalls(t, "GetByID", 1)
            mockRepo.AssertNumberOfCalls(t, "Save", 2)
            mockRepo.AssertNumberOfCalls(t, "Delete", 3)
        }

        // ========== Maybe:可选调用 ==========

        func TestMaybeCall(t *testing.T) {
            mockRepo := new(MockUserRepository)

            // Maybe:调用或不调用都可以
            mockRepo.On("GetByID", 1).Return(&User{Name: "Alice"}, nil).Maybe()

            // 不调用也不会失败
            mockRepo.AssertExpectations(t)

            // 调用了也不会失败
            mockRepo.GetByID(1)
            mockRepo.AssertExpectations(t)
        }

        // ========== Run:自定义执行函数 ==========

        func TestRunFunction(t *testing.T) {
            mockRepo := new(MockUserRepository)

            callCount := 0

            // Run:每次调用时执行自定义函数
            mockRepo.On("GetByID", mock.Anything).Run(func(args mock.Arguments) {
                callCount++
                id := args.Int(0)
                t.Logf("GetByID called with id=%d, total calls=%d", id, callCount)
            }).Return(&User{Name: "Dynamic"}, nil)

            // 调用3次
            mockRepo.GetByID(1)
            mockRepo.GetByID(2)
            mockRepo.GetByID(3)

            assert.Equal(t, 3, callCount)
            mockRepo.AssertExpectations(t)
        }

        // ========== After:延迟返回 ==========

        func TestAfterDelay(t *testing.T) {
            mockRepo := new(MockUserRepository)

            // After:延迟100ms后返回(模拟慢查询)
            mockRepo.On("GetByID", 1).
                After(100 * time.Millisecond).
                Return(&User{Name: "Slow"}, nil)

            start := time.Now()
            user, err := mockRepo.GetByID(1)
            duration := time.Since(start)

            assert.NoError(t, err)
            assert.Equal(t, "Slow", user.Name)
            assert.GreaterOrEqual(t, duration, 100*time.Millisecond)

            mockRepo.AssertExpectations(t)
        }

        // ========== WaitUntil:等待通道 ==========

        func TestWaitUntil(t *testing.T) {
            mockRepo := new(MockUserRepository)

            // 创建通道
            ready := make(chan bool)

            // WaitUntil:等待通道信号
            mockRepo.On("GetByID", 1).
                WaitUntil(ready).
                Return(&User{Name: "Ready"}, nil)

            // 在goroutine中延迟发送信号
            go func() {
                time.Sleep(50 * time.Millisecond)
                close(ready)
            }()

            start := time.Now()
            user, err := mockRepo.GetByID(1)
            duration := time.Since(start)

            assert.NoError(t, err)
            assert.Equal(t, "Ready", user.Name)
            assert.GreaterOrEqual(t, duration, 50*time.Millisecond)

            mockRepo.AssertExpectations(t)
        }

        // ========== Return函数:动态返回值 ==========

        func TestReturnFunction(t *testing.T) {
            mockRepo := new(MockUserRepository)

            // Return函数:根据参数动态生成返回值
            mockRepo.On("GetByID", mock.Anything).Return(
                func(id int) *User {
                    return &User{
                        ID:   id,
                        Name: fmt.Sprintf("User-%d", id),
                    }
                },
                nil,
            )

            // 不同参数得到不同返回值
            user1, _ := mockRepo.GetByID(1)
            assert.Equal(t, 1, user1.ID)
            assert.Equal(t, "User-1", user1.Name)

            user2, _ := mockRepo.GetByID(100)
            assert.Equal(t, 100, user2.ID)
            assert.Equal(t, "User-100", user2.Name)

            mockRepo.AssertExpectations(t)
        }

        // ========== 组合使用 ==========

        func TestCombinedControl(t *testing.T) {
            mockRepo := new(MockUserRepository)

            callLog := []int{}

            // 组合使用多个控制方法
            mockRepo.On("GetByID", mock.Anything).
                Run(func(args mock.Arguments) {
                    id := args.Int(0)
                    callLog = append(callLog, id)
                }).
                After(10 * time.Millisecond).
                Return(func(id int) *User {
                    return &User{ID: id, Name: "User"}
                }, nil).
                Times(3)

            // 调用3次
            for i := 1; i <= 3; i++ {
                start := time.Now()
                user, _ := mockRepo.GetByID(i)
                duration := time.Since(start)

                assert.Equal(t, i, user.ID)
                assert.GreaterOrEqual(t, duration, 10*time.Millisecond)
            }

            assert.Equal(t, []int{1, 2, 3}, callLog)
            mockRepo.AssertExpectations(t)
        }

        type User struct {
            ID   int
            Name string
        }

        type MockUserRepository struct {
            mock.Mock
        }

        func (m *MockUserRepository) GetByID(id int) (*User, error) {
            args := m.Called(id)
            if fn, ok := args.Get(0).(func(int) *User); ok {
                return fn(id), args.Error(1)
            }
            if args.Get(0) == nil {
                return nil, args.Error(1)
            }
            return args.Get(0).(*User), args.Error(1)
        }

        func (m *MockUserRepository) Save(user *User) error {
            args := m.Called(user)
            return args.Error(0)
        }

        func (m *MockUserRepository) Delete(id int) error {
            args := m.Called(id)
            return args.Error(0)
        }
        ---

04.验证方法
    a.期望验证
        AssertExpectations验证所有期望都被满足,AssertCalled验证特定方法被调用,AssertNotCalled验证方法未被调用。AssertNumberOfCalls验证调用次数。这些方法确保mock对象按预期被使用。
    b.验证示例
        ---
        // Mock验证方法详解
        package verification

        import (
            "testing"
            "github.com/stretchr/testify/mock"
            "github.com/stretchr/testify/assert"
        )

        func TestMockVerification(t *testing.T) {
            mockRepo := new(MockUserRepository)

            // 设置期望
            mockRepo.On("GetByID", 1).Return(&User{Name: "Alice"}, nil)
            mockRepo.On("Save", mock.Anything).Return(nil)

            // 执行调用
            mockRepo.GetByID(1)
            mockRepo.Save(&User{Name: "Bob"})

            // AssertExpectations:验证所有期望
            mockRepo.AssertExpectations(t)

            // AssertCalled:验证特定方法被调用
            mockRepo.AssertCalled(t, "GetByID", 1)
            mockRepo.AssertCalled(t, "Save", mock.Anything)

            // AssertNumberOfCalls:验证调用次数
            mockRepo.AssertNumberOfCalls(t, "GetByID", 1)
            mockRepo.AssertNumberOfCalls(t, "Save", 1)

            // AssertNotCalled:验证方法未被调用
            mockRepo.AssertNotCalled(t, "Delete", mock.Anything)
        }

        type User struct{ Name string }
        type MockUserRepository struct{ mock.Mock }
        func (m *MockUserRepository) GetByID(id int) (*User, error) {
            args := m.Called(id)
            if args.Get(0) == nil {
                return nil, args.Error(1)
            }
            return args.Get(0).(*User), args.Error(1)
        }
        func (m *MockUserRepository) Save(user *User) error {
            args := m.Called(user)
            return args.Error(0)
        }
        func (m *MockUserRepository) Delete(id int) error {
            args := m.Called(id)
            return args.Error(0)
        }
        ---

2.5 suite包

01.测试套件概念
    a.设计目的
        suite包提供测试套件功能,允许将相关测试组织成结构体,共享初始化逻辑和测试夹具。通过生命周期钩子函数SetUp和TearDown,可以在测试前后执行准备和清理工作。suite使测试代码更加结构化和可维护。
    b.核心组件
        Suite接口定义测试套件的基本结构,TestingSuite结构体提供T()方法访问testing.T。生命周期钩子包括SetupSuite、TearDownSuite、SetupTest、TearDownTest等。Run函数通过反射扫描并执行所有以Test开头的方法。
    c.适用场景
        suite适合需要复杂初始化的场景,如数据库连接、文件系统准备、外部服务启动等。适合有多个相关测试需要共享状态的场景。适合集成测试和端到端测试,不太适合简单的单元测试。
    d.基础示例
        ---
        // suite包基础示例
        package suitebasic

        import (
            "testing"
            "github.com/stretchr/testify/suite"
            "github.com/stretchr/testify/assert"
            "database/sql"
        )

        // ========== 步骤1:定义测试套件结构体 ==========

        type UserRepositoryTestSuite struct {
            suite.Suite              // 嵌入suite.Suite
            db   *sql.DB            // 共享资源
            repo *UserRepository    // 被测对象
        }

        // ========== 步骤2:实现生命周期钩子 ==========

        // SetupSuite:整个套件开始前执行一次
        func (s *UserRepositoryTestSuite) SetupSuite() {
            // 连接测试数据库
            var err error
            s.db, err = sql.Open("mysql", "test:test@tcp(localhost:3306)/testdb")
            s.Require().NoError(err, "数据库连接必须成功")

            // 创建测试表
            _, err = s.db.Exec(`
                CREATE TABLE IF NOT EXISTS users (
                    id INT PRIMARY KEY AUTO_INCREMENT,
                    name VARCHAR(100),
                    email VARCHAR(100)
                )
            `)
            s.Require().NoError(err)
        }

        // TearDownSuite:整个套件结束后执行一次
        func (s *UserRepositoryTestSuite) TearDownSuite() {
            // 清理测试表
            s.db.Exec("DROP TABLE IF EXISTS users")

            // 关闭数据库连接
            if s.db != nil {
                s.db.Close()
            }
        }

        // SetupTest:每个测试方法前执行
        func (s *UserRepositoryTestSuite) SetupTest() {
            // 清空表数据
            s.db.Exec("TRUNCATE TABLE users")

            // 插入测试数据
            s.db.Exec("INSERT INTO users (name, email) VALUES ('Alice', 'alice@example.com')")
            s.db.Exec("INSERT INTO users (name, email) VALUES ('Bob', 'bob@example.com')")

            // 创建被测对象
            s.repo = NewUserRepository(s.db)
        }

        // TearDownTest:每个测试方法后执行
        func (s *UserRepositoryTestSuite) TearDownTest() {
            // 清理测试数据
            s.db.Exec("TRUNCATE TABLE users")
        }

        // ========== 步骤3:编写测试方法 ==========

        // 测试方法必须以Test开头
        func (s *UserRepositoryTestSuite) TestFindByID() {
            // 使用s.Assert()或s.Require()进行断言
            user, err := s.repo.FindByID(1)

            s.NoError(err)                              // 简写:s.Suite内置方法
            s.NotNil(user)
            s.Equal("Alice", user.Name)
            s.Equal("alice@example.com", user.Email)
        }

        func (s *UserRepositoryTestSuite) TestFindAll() {
            users, err := s.repo.FindAll()

            s.NoError(err)
            s.Len(users, 2)
            s.Equal("Alice", users[0].Name)
            s.Equal("Bob", users[1].Name)
        }

        func (s *UserRepositoryTestSuite) TestCreate() {
            newUser := &User{
                Name:  "Charlie",
                Email: "charlie@example.com",
            }

            err := s.repo.Create(newUser)
            s.NoError(err)
            s.NotZero(newUser.ID)

            // 验证数据库中存在
            savedUser, err := s.repo.FindByID(newUser.ID)
            s.NoError(err)
            s.Equal("Charlie", savedUser.Name)
        }

        func (s *UserRepositoryTestSuite) TestUpdate() {
            user, _ := s.repo.FindByID(1)
            user.Email = "newemail@example.com"

            err := s.repo.Update(user)
            s.NoError(err)

            // 验证更新成功
            updated, _ := s.repo.FindByID(1)
            s.Equal("newemail@example.com", updated.Email)
        }

        func (s *UserRepositoryTestSuite) TestDelete() {
            err := s.repo.Delete(1)
            s.NoError(err)

            // 验证已删除
            user, err := s.repo.FindByID(1)
            s.Error(err)
            s.Nil(user)
        }

        // ========== 步骤4:运行测试套件 ==========

        // 测试入口函数
        func TestUserRepositoryTestSuite(t *testing.T) {
            suite.Run(t, new(UserRepositoryTestSuite))
        }

        // ========== 辅助定义 ==========

        type User struct {
            ID    int
            Name  string
            Email string
        }

        type UserRepository struct {
            db *sql.DB
        }

        func NewUserRepository(db *sql.DB) *UserRepository {
            return &UserRepository{db: db}
        }

        func (r *UserRepository) FindByID(id int) (*User, error) {
            user := &User{}
            err := r.db.QueryRow("SELECT id, name, email FROM users WHERE id = ?", id).
                Scan(&user.ID, &user.Name, &user.Email)
            if err != nil {
                return nil, err
            }
            return user, nil
        }

        func (r *UserRepository) FindAll() ([]*User, error) {
            rows, err := r.db.Query("SELECT id, name, email FROM users")
            if err != nil {
                return nil, err
            }
            defer rows.Close()

            var users []*User
            for rows.Next() {
                user := &User{}
                rows.Scan(&user.ID, &user.Name, &user.Email)
                users = append(users, user)
            }
            return users, nil
        }

        func (r *UserRepository) Create(user *User) error {
            result, err := r.db.Exec(
                "INSERT INTO users (name, email) VALUES (?, ?)",
                user.Name, user.Email,
            )
            if err != nil {
                return err
            }
            id, _ := result.LastInsertId()
            user.ID = int(id)
            return nil
        }

        func (r *UserRepository) Update(user *User) error {
            _, err := r.db.Exec(
                "UPDATE users SET name=?, email=? WHERE id=?",
                user.Name, user.Email, user.ID,
            )
            return err
        }

        func (r *UserRepository) Delete(id int) error {
            _, err := r.db.Exec("DELETE FROM users WHERE id = ?", id)
            return err
        }
        ---

02.生命周期钩子
    a.钩子执行顺序
        生命周期钩子按特定顺序执行:SetupSuite→SetupTest→Test方法→TearDownTest→下一个Test→TearDownSuite。SetupSuite和TearDownSuite每个套件只执行一次,SetupTest和TearDownTest每个测试方法都执行。
    b.钩子函数详解
        ---
        // 生命周期钩子详解
        package lifecycle

        import (
            "testing"
            "github.com/stretchr/testify/suite"
            "fmt"
        )

        // ========== 完整的生命周期演示 ==========

        type LifecycleTestSuite struct {
            suite.Suite
            counter int
        }

        // SetupSuite:套件级别初始化
        func (s *LifecycleTestSuite) SetupSuite() {
            fmt.Println("1. SetupSuite: 整个套件开始前执行(只执行1次)")
            // 适合:数据库连接、外部服务启动、全局配置加载
        }

        // SetupTest:测试级别初始化
        func (s *LifecycleTestSuite) SetupTest() {
            s.counter = 0
            fmt.Println("2. SetupTest: 每个测试方法前执行")
            // 适合:清空数据库、重置状态、准备测试数据
        }

        // BeforeTest:在SetupTest之后、测试方法之前执行
        func (s *LifecycleTestSuite) BeforeTest(suiteName, testName string) {
            fmt.Printf("3. BeforeTest: %s.%s 即将开始\n", suiteName, testName)
            // 适合:记录日志、设置上下文、特定测试的准备
        }

        // 测试方法1
        func (s *LifecycleTestSuite) TestExample1() {
            fmt.Println("4. TestExample1: 测试方法执行")
            s.counter++
            s.Equal(1, s.counter)
        }

        // 测试方法2
        func (s *LifecycleTestSuite) TestExample2() {
            fmt.Println("4. TestExample2: 测试方法执行")
            s.counter++
            s.Equal(1, s.counter)  // counter在SetupTest中重置为0
        }

        // AfterTest:在测试方法之后、TearDownTest之前执行
        func (s *LifecycleTestSuite) AfterTest(suiteName, testName string) {
            fmt.Printf("5. AfterTest: %s.%s 已完成\n", suiteName, testName)
            // 适合:收集测试指标、验证后置条件
        }

        // TearDownTest:测试级别清理
        func (s *LifecycleTestSuite) TearDownTest() {
            fmt.Println("6. TearDownTest: 每个测试方法后执行")
            // 适合:清理测试数据、释放测试资源
        }

        // TearDownSuite:套件级别清理
        func (s *LifecycleTestSuite) TearDownSuite() {
            fmt.Println("7. TearDownSuite: 整个套件结束后执行(只执行1次)")
            // 适合:关闭数据库连接、停止外部服务、清理全局资源
        }

        func TestLifecycleTestSuite(t *testing.T) {
            suite.Run(t, new(LifecycleTestSuite))
        }

        /*
        输出示例:
        1. SetupSuite: 整个套件开始前执行(只执行1次)
        2. SetupTest: 每个测试方法前执行
        3. BeforeTest: LifecycleTestSuite.TestExample1 即将开始
        4. TestExample1: 测试方法执行
        5. AfterTest: LifecycleTestSuite.TestExample1 已完成
        6. TearDownTest: 每个测试方法后执行
        2. SetupTest: 每个测试方法前执行
        3. BeforeTest: LifecycleTestSuite.TestExample2 即将开始
        4. TestExample2: 测试方法执行
        5. AfterTest: LifecycleTestSuite.TestExample2 已完成
        6. TearDownTest: 每个测试方法后执行
        7. TearDownSuite: 整个套件结束后执行(只执行1次)
        */

        // ========== 实战示例:数据库测试套件 ==========

        type DatabaseTestSuite struct {
            suite.Suite
            db       *sql.DB
            tx       *sql.Tx
            cleanups []func()
        }

        func (s *DatabaseTestSuite) SetupSuite() {
            // 连接测试数据库
            var err error
            s.db, err = sql.Open("postgres", "postgres://localhost/testdb")
            s.Require().NoError(err)

            // 运行迁移
            s.runMigrations()
        }

        func (s *DatabaseTestSuite) SetupTest() {
            // 每个测试使用独立事务
            var err error
            s.tx, err = s.db.Begin()
            s.Require().NoError(err)

            // 清空所有表
            s.tx.Exec("TRUNCATE TABLE users CASCADE")
            s.tx.Exec("TRUNCATE TABLE orders CASCADE")

            // 重置清理函数列表
            s.cleanups = nil
        }

        func (s *DatabaseTestSuite) TearDownTest() {
            // 回滚事务(隔离测试)
            if s.tx != nil {
                s.tx.Rollback()
            }

            // 执行注册的清理函数
            for i := len(s.cleanups) - 1; i >= 0; i-- {
                s.cleanups[i]()
            }
        }

        func (s *DatabaseTestSuite) TearDownSuite() {
            // 关闭数据库连接
            if s.db != nil {
                s.db.Close()
            }
        }

        // 辅助方法:注册清理函数
        func (s *DatabaseTestSuite) AddCleanup(fn func()) {
            s.cleanups = append(s.cleanups, fn)
        }

        func (s *DatabaseTestSuite) runMigrations() {
            // 创建表结构
        }

        // ========== 实战示例:HTTP服务测试套件 ==========

        type HTTPServiceTestSuite struct {
            suite.Suite
            server *httptest.Server
            client *http.Client
        }

        func (s *HTTPServiceTestSuite) SetupSuite() {
            // 启动测试服务器
            handler := NewHTTPHandler()
            s.server = httptest.NewServer(handler)

            // 创建HTTP客户端
            s.client = &http.Client{
                Timeout: 10 * time.Second,
            }
        }

        func (s *HTTPServiceTestSuite) TearDownSuite() {
            // 关闭测试服务器
            if s.server != nil {
                s.server.Close()
            }
        }

        func (s *HTTPServiceTestSuite) SetupTest() {
            // 每个测试前清理session/cookie
            jar, _ := cookiejar.New(nil)
            s.client.Jar = jar
        }

        func NewHTTPHandler() http.Handler {
            return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                w.WriteHeader(http.StatusOK)
            })
        }
        ---

03.子测试支持
    a.Run方法
        suite支持使用T().Run创建子测试,可以在套件内部进一步组织测试。子测试可以并行执行,提高测试效率。子测试有独立的名称,便于识别失败的具体场景。
    b.子测试示例
        ---
        // 子测试支持示例
        package subtest

        import (
            "testing"
            "github.com/stretchr/testify/suite"
        )

        type SubTestSuite struct {
            suite.Suite
        }

        // 使用子测试组织多个场景
        func (s *SubTestSuite) TestUserValidation() {
            // 场景1:有效用户
            s.Run("ValidUser", func() {
                user := &User{Name: "Alice", Email: "alice@example.com"}
                err := ValidateUser(user)
                s.NoError(err)
            })

            // 场景2:空名称
            s.Run("EmptyName", func() {
                user := &User{Name: "", Email: "alice@example.com"}
                err := ValidateUser(user)
                s.Error(err)
                s.Contains(err.Error(), "name")
            })

            // 场景3:无效邮箱
            s.Run("InvalidEmail", func() {
                user := &User{Name: "Alice", Email: "invalid"}
                err := ValidateUser(user)
                s.Error(err)
                s.Contains(err.Error(), "email")
            })
        }

        // 表格驱动测试与子测试结合
        func (s *SubTestSuite) TestCalculator() {
            tests := []struct {
                name     string
                a, b     int
                expected int
            }{
                {"Positive", 2, 3, 5},
                {"Negative", -1, -2, -3},
                {"Zero", 0, 5, 5},
                {"Mixed", -3, 5, 2},
            }

            for _, tt := range tests {
                s.Run(tt.name, func() {
                    result := Add(tt.a, tt.b)
                    s.Equal(tt.expected, result)
                })
            }
        }

        func TestSubTestSuite(t *testing.T) {
            suite.Run(t, new(SubTestSuite))
        }

        type User struct {
            Name  string
            Email string
        }

        func ValidateUser(user *User) error {
            if user.Name == "" {
                return errors.New("name is required")
            }
            if !strings.Contains(user.Email, "@") {
                return errors.New("invalid email")
            }
            return nil
        }

        func Add(a, b int) int {
            return a + b
        }
        ---

04.最佳实践
    a.资源管理
        在SetupSuite中初始化昂贵资源如数据库连接,在TearDownSuite中清理。在SetupTest中准备测试数据,在TearDownTest中清理。使用defer确保资源一定被释放。合理使用生命周期钩子可以避免资源泄漏和测试间干扰。
    b.测试隔离
        每个测试应该独立,不依赖其他测试的执行顺序或结果。使用事务回滚或数据清理确保测试间隔离。避免在测试间共享可变状态。suite的SetupTest/TearDownTest机制有助于实现测试隔离。
    c.命名规范
        测试套件名称以TestSuite结尾,如UserRepositoryTestSuite。测试方法名称以Test开头,清晰描述测试内容,如TestCreateUser。生命周期钩子使用标准名称不要自定义。

2.6 http包

01.HTTP测试工具
    a.包设计目的
        testify的http包封装了Go标准库的httptest包,提供更便捷的HTTP测试断言。虽然http包在testify中使用频率不如assert和mock高,但对于Web应用和API服务测试仍然很有价值。它简化了HTTP请求和响应的测试代码。
    b.核心功能
        http包提供用于测试HTTP处理器的工具函数,可以创建测试请求、捕获响应、验证状态码和响应内容。与httptest.ResponseRecorder配合使用,可以完整地测试HTTP处理逻辑而无需启动真实服务器。
    c.使用场景
        http包适用于单元测试HTTP处理器函数,测试RESTful API端点,验证中间件行为,测试HTTP客户端代码。对于复杂的集成测试,可能需要配合httptest.Server使用。
    d.基础示例
        ---
        // http包基础示例
        package httpbasic

        import (
            "testing"
            "net/http"
            "net/http/httptest"
            "github.com/stretchr/testify/assert"
            "encoding/json"
        )

        // ========== HTTP处理器定义 ==========

        // 简单的GET处理器
        func HelloHandler(w http.ResponseWriter, r *http.Request) {
            w.Header().Set("Content-Type", "text/plain")
            w.WriteHeader(http.StatusOK)
            w.Write([]byte("Hello, World!"))
        }

        // JSON API处理器
        func UserHandler(w http.ResponseWriter, r *http.Request) {
            user := map[string]interface{}{
                "id":    1,
                "name":  "Alice",
                "email": "alice@example.com",
            }

            w.Header().Set("Content-Type", "application/json")
            w.WriteHeader(http.StatusOK)
            json.NewEncoder(w).Encode(user)
        }

        // POST处理器
        func CreateUserHandler(w http.ResponseWriter, r *http.Request) {
            if r.Method != http.MethodPOST {
                w.WriteHeader(http.StatusMethodNotAllowed)
                return
            }

            var user struct {
                Name  string `json:"name"`
                Email string `json:"email"`
            }

            err := json.NewDecoder(r.Body).Decode(&user)
            if err != nil {
                w.WriteHeader(http.StatusBadRequest)
                json.NewEncoder(w).Encode(map[string]string{"error": "Invalid JSON"})
                return
            }

            if user.Name == "" || user.Email == "" {
                w.WriteHeader(http.StatusBadRequest)
                json.NewEncoder(w).Encode(map[string]string{"error": "Name and email required"})
                return
            }

            response := map[string]interface{}{
                "id":    123,
                "name":  user.Name,
                "email": user.Email,
            }

            w.Header().Set("Content-Type", "application/json")
            w.WriteHeader(http.StatusCreated)
            json.NewEncoder(w).Encode(response)
        }

        // ========== 测试示例 ==========

        // 测试1:简单GET请求
        func TestHelloHandler(t *testing.T) {
            // 创建请求
            req, err := http.NewRequest("GET", "/hello", nil)
            assert.NoError(t, err)

            // 创建ResponseRecorder捕获响应
            rr := httptest.NewRecorder()

            // 调用处理器
            handler := http.HandlerFunc(HelloHandler)
            handler.ServeHTTP(rr, req)

            // 验证响应
            assert.Equal(t, http.StatusOK, rr.Code)
            assert.Equal(t, "text/plain", rr.Header().Get("Content-Type"))
            assert.Equal(t, "Hello, World!", rr.Body.String())
        }

        // 测试2:JSON响应
        func TestUserHandler(t *testing.T) {
            req, _ := http.NewRequest("GET", "/user/1", nil)
            rr := httptest.NewRecorder()

            handler := http.HandlerFunc(UserHandler)
            handler.ServeHTTP(rr, req)

            // 验证状态码和Content-Type
            assert.Equal(t, http.StatusOK, rr.Code)
            assert.Contains(t, rr.Header().Get("Content-Type"), "application/json")

            // 解析JSON响应
            var user map[string]interface{}
            err := json.Unmarshal(rr.Body.Bytes(), &user)
            assert.NoError(t, err)

            // 验证JSON内容
            assert.Equal(t, float64(1), user["id"])
            assert.Equal(t, "Alice", user["name"])
            assert.Equal(t, "alice@example.com", user["email"])

            // 或使用JSONEq直接比较JSON字符串
            expected := `{"id":1,"name":"Alice","email":"alice@example.com"}`
            assert.JSONEq(t, expected, rr.Body.String())
        }

        // 测试3:POST请求
        func TestCreateUserHandler(t *testing.T) {
            // 准备请求体
            requestBody := `{"name":"Bob","email":"bob@example.com"}`
            req, _ := http.NewRequest("POST", "/users", strings.NewReader(requestBody))
            req.Header.Set("Content-Type", "application/json")

            rr := httptest.NewRecorder()
            handler := http.HandlerFunc(CreateUserHandler)
            handler.ServeHTTP(rr, req)

            // 验证响应
            assert.Equal(t, http.StatusCreated, rr.Code)

            var response map[string]interface{}
            json.Unmarshal(rr.Body.Bytes(), &response)

            assert.Equal(t, float64(123), response["id"])
            assert.Equal(t, "Bob", response["name"])
            assert.Equal(t, "bob@example.com", response["email"])
        }

        // 测试4:错误处理
        func TestCreateUserHandler_InvalidJSON(t *testing.T) {
            // 无效的JSON
            req, _ := http.NewRequest("POST", "/users", strings.NewReader("invalid json"))
            req.Header.Set("Content-Type", "application/json")

            rr := httptest.NewRecorder()
            handler := http.HandlerFunc(CreateUserHandler)
            handler.ServeHTTP(rr, req)

            // 验证错误响应
            assert.Equal(t, http.StatusBadRequest, rr.Code)

            var errorResp map[string]string
            json.Unmarshal(rr.Body.Bytes(), &errorResp)
            assert.Equal(t, "Invalid JSON", errorResp["error"])
        }

        // 测试5:缺少必填字段
        func TestCreateUserHandler_MissingFields(t *testing.T) {
            requestBody := `{"name":"Bob"}`  // 缺少email
            req, _ := http.NewRequest("POST", "/users", strings.NewReader(requestBody))
            req.Header.Set("Content-Type", "application/json")

            rr := httptest.NewRecorder()
            handler := http.HandlerFunc(CreateUserHandler)
            handler.ServeHTTP(rr, req)

            assert.Equal(t, http.StatusBadRequest, rr.Code)
            assert.Contains(t, rr.Body.String(), "required")
        }

        // 测试6:方法不允许
        func TestCreateUserHandler_MethodNotAllowed(t *testing.T) {
            req, _ := http.NewRequest("GET", "/users", nil)

            rr := httptest.NewRecorder()
            handler := http.HandlerFunc(CreateUserHandler)
            handler.ServeHTTP(rr, req)

            assert.Equal(t, http.StatusMethodNotAllowed, rr.Code)
        }
        ---

02.中间件测试
    a.中间件概念
        中间件是包装HTTP处理器的函数,用于在请求处理前后执行额外逻辑,如认证、日志、CORS等。测试中间件需要验证它正确地修改请求或响应,并调用下一个处理器。
    b.中间件测试示例
        ---
        // 中间件测试示例
        package middleware

        import (
            "testing"
            "net/http"
            "net/http/httptest"
            "github.com/stretchr/testify/assert"
        )

        // ========== 中间件定义 ==========

        // 日志中间件
        func LoggingMiddleware(next http.Handler) http.Handler {
            return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                // 记录请求信息
                log.Printf("%s %s", r.Method, r.URL.Path)

                // 调用下一个处理器
                next.ServeHTTP(w, r)
            })
        }

        // 认证中间件
        func AuthMiddleware(next http.Handler) http.Handler {
            return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                // 检查认证token
                token := r.Header.Get("Authorization")
                if token == "" {
                    w.WriteHeader(http.StatusUnauthorized)
                    w.Write([]byte("Unauthorized"))
                    return
                }

                if token != "valid-token" {
                    w.WriteHeader(http.StatusForbidden)
                    w.Write([]byte("Forbidden"))
                    return
                }

                // 认证通过,调用下一个处理器
                next.ServeHTTP(w, r)
            })
        }

        // CORS中间件
        func CORSMiddleware(next http.Handler) http.Handler {
            return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                // 设置CORS头
                w.Header().Set("Access-Control-Allow-Origin", "*")
                w.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE")
                w.Header().Set("Access-Control-Allow-Headers", "Content-Type, Authorization")

                // 处理预检请求
                if r.Method == "OPTIONS" {
                    w.WriteHeader(http.StatusOK)
                    return
                }

                next.ServeHTTP(w, r)
            })
        }

        // ========== 中间件测试 ==========

        // 测试:日志中间件
        func TestLoggingMiddleware(t *testing.T) {
            // 创建测试处理器
            handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                w.WriteHeader(http.StatusOK)
                w.Write([]byte("OK"))
            })

            // 应用中间件
            wrappedHandler := LoggingMiddleware(handler)

            req, _ := http.NewRequest("GET", "/test", nil)
            rr := httptest.NewRecorder()

            wrappedHandler.ServeHTTP(rr, req)

            // 验证请求仍然正常处理
            assert.Equal(t, http.StatusOK, rr.Code)
            assert.Equal(t, "OK", rr.Body.String())
        }

        // 测试:认证中间件-无token
        func TestAuthMiddleware_NoToken(t *testing.T) {
            handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                w.Write([]byte("Protected"))
            })

            wrappedHandler := AuthMiddleware(handler)

            req, _ := http.NewRequest("GET", "/protected", nil)
            rr := httptest.NewRecorder()

            wrappedHandler.ServeHTTP(rr, req)

            // 验证返回401
            assert.Equal(t, http.StatusUnauthorized, rr.Code)
            assert.Equal(t, "Unauthorized", rr.Body.String())
        }

        // 测试:认证中间件-无效token
        func TestAuthMiddleware_InvalidToken(t *testing.T) {
            handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                w.Write([]byte("Protected"))
            })

            wrappedHandler := AuthMiddleware(handler)

            req, _ := http.NewRequest("GET", "/protected", nil)
            req.Header.Set("Authorization", "invalid-token")
            rr := httptest.NewRecorder()

            wrappedHandler.ServeHTTP(rr, req)

            assert.Equal(t, http.StatusForbidden, rr.Code)
            assert.Equal(t, "Forbidden", rr.Body.String())
        }

        // 测试:认证中间件-有效token
        func TestAuthMiddleware_ValidToken(t *testing.T) {
            handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                w.Write([]byte("Protected Content"))
            })

            wrappedHandler := AuthMiddleware(handler)

            req, _ := http.NewRequest("GET", "/protected", nil)
            req.Header.Set("Authorization", "valid-token")
            rr := httptest.NewRecorder()

            wrappedHandler.ServeHTTP(rr, req)

            // 验证请求通过
            assert.Equal(t, http.StatusOK, rr.Code)
            assert.Equal(t, "Protected Content", rr.Body.String())
        }

        // 测试:CORS中间件
        func TestCORSMiddleware(t *testing.T) {
            handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                w.Write([]byte("OK"))
            })

            wrappedHandler := CORSMiddleware(handler)

            req, _ := http.NewRequest("GET", "/api", nil)
            rr := httptest.NewRecorder()

            wrappedHandler.ServeHTTP(rr, req)

            // 验证CORS头已设置
            assert.Equal(t, "*", rr.Header().Get("Access-Control-Allow-Origin"))
            assert.Equal(t, "GET, POST, PUT, DELETE", rr.Header().Get("Access-Control-Allow-Methods"))
            assert.Contains(t, rr.Header().Get("Access-Control-Allow-Headers"), "Authorization")
        }

        // 测试:CORS预检请求
        func TestCORSMiddleware_Preflight(t *testing.T) {
            handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                w.Write([]byte("Should not reach here"))
            })

            wrappedHandler := CORSMiddleware(handler)

            req, _ := http.NewRequest("OPTIONS", "/api", nil)
            rr := httptest.NewRecorder()

            wrappedHandler.ServeHTTP(rr, req)

            // 验证预检请求返回200且不调用下一个处理器
            assert.Equal(t, http.StatusOK, rr.Code)
            assert.Empty(t, rr.Body.String())
        }

        // 测试:多个中间件链
        func TestMiddlewareChain(t *testing.T) {
            finalHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                w.Write([]byte("Final"))
            })

            // 组合多个中间件
            handler := LoggingMiddleware(
                CORSMiddleware(
                    AuthMiddleware(finalHandler),
                ),
            )

            req, _ := http.NewRequest("GET", "/api", nil)
            req.Header.Set("Authorization", "valid-token")
            rr := httptest.NewRecorder()

            handler.ServeHTTP(rr, req)

            // 验证所有中间件都生效
            assert.Equal(t, http.StatusOK, rr.Code)
            assert.Equal(t, "Final", rr.Body.String())
            assert.Equal(t, "*", rr.Header().Get("Access-Control-Allow-Origin"))
        }
        ---

03.httptest.Server使用
    a.测试服务器
        httptest.Server可以启动一个真实的HTTP服务器用于测试,适合集成测试场景。相比ResponseRecorder,Server提供完整的HTTP栈,可以测试完整的请求响应流程。
    b.Server测试示例
        ---
        // httptest.Server测试示例
        package server

        import (
            "testing"
            "net/http"
            "net/http/httptest"
            "github.com/stretchr/testify/assert"
            "io"
        )

        func TestWithHTTPServer(t *testing.T) {
            // 创建测试服务器
            server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                w.WriteHeader(http.StatusOK)
                w.Write([]byte("Test Server"))
            }))
            defer server.Close()

            // 发送真实HTTP请求
            resp, err := http.Get(server.URL)
            assert.NoError(t, err)
            defer resp.Body.Close()

            // 验证响应
            assert.Equal(t, http.StatusOK, resp.StatusCode)

            body, _ := io.ReadAll(resp.Body)
            assert.Equal(t, "Test Server", string(body))
        }

        // 测试:带路由的服务器
        func TestServerWithRouter(t *testing.T) {
            mux := http.NewServeMux()
            mux.HandleFunc("/users", func(w http.ResponseWriter, r *http.Request) {
                w.Write([]byte("Users"))
            })
            mux.HandleFunc("/posts", func(w http.ResponseWriter, r *http.Request) {
                w.Write([]byte("Posts"))
            })

            server := httptest.NewServer(mux)
            defer server.Close()

            // 测试/users
            resp1, _ := http.Get(server.URL + "/users")
            body1, _ := io.ReadAll(resp1.Body)
            assert.Equal(t, "Users", string(body1))
            resp1.Body.Close()

            // 测试/posts
            resp2, _ := http.Get(server.URL + "/posts")
            body2, _ := io.ReadAll(resp2.Body)
            assert.Equal(t, "Posts", string(body2))
            resp2.Body.Close()
        }
        ---

04.最佳实践
    a.选择合适的测试工具
        单元测试HTTP处理器使用httptest.ResponseRecorder,快速且无需网络。集成测试使用httptest.Server,提供完整HTTP栈。端到端测试考虑使用真实服务器或Docker容器。
    b.测试组织
        为每个HTTP端点编写独立测试,包括正常场景和异常场景。测试不同的HTTP方法、请求头、查询参数、请求体。验证状态码、响应头、响应体的正确性。

2.7 附:包选择建议

01.选择决策树
    a.决策流程
        选择testify包时应该根据测试场景和需求进行决策。首先确定是否需要断言功能,然后判断断言失败是否应该立即终止测试,接着考虑是否需要mock依赖,最后判断是否需要结构化的测试组织。这个决策流程可以帮助快速选择合适的包组合。
    b.决策树图示
        ---
        // testify包选择决策树
        package decision

        /*
        ┌─────────────────────────────────────────┐
        │     开始:我需要编写测试                  │
        └──────────────┬──────────────────────────┘
                       │
                       ▼
        ┌─────────────────────────────────────────┐
        │  是否需要断言功能?                       │
        ├─────────────────────────────────────────┤
        │  Yes  →  继续                            │
        │  No   →  使用标准库testing包             │
        └──────────────┬──────────────────────────┘
                       │ Yes
                       ▼
        ┌─────────────────────────────────────────┐
        │  是否是前置条件检查?                     │
        │  (失败应立即终止测试)                   │
        ├─────────────────────────────────────────┤
        │  Yes  →  使用require包                   │
        │  No   →  使用assert包                    │
        └──────────────┬──────────────────────────┘
                       │
                       ▼
        ┌─────────────────────────────────────────┐
        │  是否需要隔离外部依赖?                   │
        ├─────────────────────────────────────────┤
        │  Yes  →  添加mock包                      │
        │  No   →  跳过                            │
        └──────────────┬──────────────────────────┘
                       │
                       ▼
        ┌─────────────────────────────────────────┐
        │  是否有复杂的初始化和清理?               │
        │  (多个相关测试需要共享资源)             │
        ├─────────────────────────────────────────┤
        │  Yes  →  使用suite包                     │
        │  No   →  使用函数式测试                  │
        └──────────────┬──────────────────────────┘
                       │
                       ▼
        ┌─────────────────────────────────────────┐
        │  是否测试HTTP处理器?                    │
        ├─────────────────────────────────────────┤
        │  Yes  →  考虑使用http包(可选)          │
        │  No   →  完成                            │
        └─────────────────────────────────────────┘


        ========== 典型场景包组合 ==========

        场景1:简单单元测试
        ├─ assert包:验证函数返回值
        └─ 推荐指数:★★★★★

        场景2:带资源初始化的单元测试
        ├─ require包:检查资源初始化
        ├─ assert包:验证业务逻辑
        └─ 推荐指数:★★★★★

        场景3:需要隔离依赖的单元测试
        ├─ require包:检查mock对象创建
        ├─ mock包:模拟外部依赖
        ├─ assert包:验证业务逻辑
        └─ 推荐指数:★★★★★

        场景4:数据库集成测试
        ├─ suite包:管理数据库连接和事务
        ├─ require包:检查数据库操作
        ├─ assert包:验证查询结果
        └─ 推荐指数:★★★★☆

        场景5:HTTP API测试
        ├─ require包:检查请求创建
        ├─ assert包:验证响应
        ├─ http包:简化HTTP测试(可选)
        └─ 推荐指数:★★★★☆

        场景6:完整的端到端测试
        ├─ suite包:管理测试环境
        ├─ require包:检查前置条件
        ├─ mock包:模拟外部服务
        ├─ assert包:验证结果
        └─ 推荐指数:★★★★★
        */

        // 示例:简单单元测试(只用assert)
        func TestSimpleUnit(t *testing.T) {
            a := assert.New(t)

            result := Add(2, 3)
            a.Equal(5, result)
        }

        // 示例:带资源初始化(require + assert)
        func TestWithResource(t *testing.T) {
            r := require.New(t)
            a := assert.New(t)

            // require:前置条件
            db := ConnectDB()
            r.NotNil(db)
            defer db.Close()

            // assert:业务逻辑
            users, err := db.QueryUsers()
            a.NoError(err)
            a.Len(users, 3)
        }

        // 示例:隔离依赖(require + mock + assert)
        func TestWithMock(t *testing.T) {
            r := require.New(t)
            a := assert.New(t)

            // mock:模拟依赖
            mockRepo := new(MockRepository)
            mockRepo.On("Get", 1).Return("data", nil)

            // require:创建服务
            service := NewService(mockRepo)
            r.NotNil(service)

            // assert:验证行为
            result, err := service.Process(1)
            a.NoError(err)
            a.Equal("data", result)

            mockRepo.AssertExpectations(t)
        }

        func Add(a, b int) int { return a + b }

        type DB struct{}
        func ConnectDB() *DB { return &DB{} }
        func (db *DB) Close() {}
        func (db *DB) QueryUsers() ([]string, error) { return []string{"a", "b", "c"}, nil }

        type MockRepository struct{ mock.Mock }
        func (m *MockRepository) Get(id int) (string, error) {
            args := m.Called(id)
            return args.String(0), args.Error(1)
        }

        type Service struct{}
        func NewService(repo *MockRepository) *Service { return &Service{} }
        func (s *Service) Process(id int) (string, error) { return "data", nil }
        ---

02.常见场景建议
    a.纯逻辑函数测试
        对于不依赖外部资源的纯函数,使用assert包即可。编写简单直接的测试,验证输入输出关系。不需要mock和suite,保持测试简单。适合工具函数、算法实现、数据转换等场景。
    b.业务逻辑层测试
        业务逻辑层通常依赖数据访问层和外部服务,需要使用mock隔离依赖。使用require检查mock对象创建,使用assert验证业务逻辑,使用mock包模拟依赖。这是最常见的测试场景。
    c.数据访问层测试
        数据访问层测试需要真实数据库连接,使用suite管理数据库连接和事务。在SetupSuite中连接数据库,在SetupTest中准备测试数据,在TearDownTest中清理数据。使用require检查数据库操作,使用assert验证查询结果。
    d.场景示例
        ---
        // 常见场景包选择示例
        package scenarios

        import (
            "testing"
            "github.com/stretchr/testify/suite"
            "github.com/stretchr/testify/require"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        // ========== 场景1:纯逻辑函数(只用assert)==========

        func TestPureFunction(t *testing.T) {
            a := assert.New(t)

            // 测试字符串处理函数
            a.Equal("HELLO", ToUpper("hello"))
            a.Equal("hello", ToLower("HELLO"))

            // 测试数学计算函数
            a.Equal(15, Sum([]int{1, 2, 3, 4, 5}))
            a.Equal(3.0, Average([]float64{1, 2, 3, 4, 5}))

            // 测试数据验证函数
            a.True(IsValidEmail("user@example.com"))
            a.False(IsValidEmail("invalid"))
        }

        // ========== 场景2:业务逻辑层(require + mock + assert)==========

        func TestBusinessLogic(t *testing.T) {
            r := require.New(t)
            a := assert.New(t)

            // Mock依赖
            mockUserRepo := new(MockUserRepository)
            mockOrderRepo := new(MockOrderRepository)
            mockNotifier := new(MockNotifier)

            // 设置期望
            user := &User{ID: 1, Name: "Alice", Email: "alice@example.com"}
            mockUserRepo.On("FindByID", 1).Return(user, nil)
            mockOrderRepo.On("Create", mock.Anything).Return(nil)
            mockNotifier.On("Send", user.Email, mock.Anything).Return(nil)

            // 创建服务(使用require确保成功)
            service := NewOrderService(mockUserRepo, mockOrderRepo, mockNotifier)
            r.NotNil(service)

            // 测试业务逻辑(使用assert)
            order, err := service.CreateOrder(1, []OrderItem{{ProductID: 1, Quantity: 2}})
            a.NoError(err)
            a.NotNil(order)
            a.Equal(1, order.UserID)

            // 验证mock调用
            mockUserRepo.AssertExpectations(t)
            mockOrderRepo.AssertExpectations(t)
            mockNotifier.AssertExpectations(t)
        }

        // ========== 场景3:数据访问层(suite + require + assert)==========

        type RepositoryTestSuite struct {
            suite.Suite
            db   *sql.DB
            repo *UserRepository
        }

        func (s *RepositoryTestSuite) SetupSuite() {
            var err error
            s.db, err = sql.Open("postgres", "postgres://localhost/testdb")
            s.Require().NoError(err)
        }

        func (s *RepositoryTestSuite) SetupTest() {
            s.db.Exec("TRUNCATE TABLE users")
            s.db.Exec("INSERT INTO users (name, email) VALUES ('Alice', 'alice@example.com')")
            s.repo = NewUserRepository(s.db)
        }

        func (s *RepositoryTestSuite) TestFindByID() {
            user, err := s.repo.FindByID(1)

            s.NoError(err)
            s.NotNil(user)
            s.Equal("Alice", user.Name)
        }

        func (s *RepositoryTestSuite) TestCreate() {
            newUser := &User{Name: "Bob", Email: "bob@example.com"}
            err := s.repo.Create(newUser)

            s.NoError(err)
            s.NotZero(newUser.ID)
        }

        func (s *RepositoryTestSuite) TearDownSuite() {
            if s.db != nil {
                s.db.Close()
            }
        }

        func TestRepositoryTestSuite(t *testing.T) {
            suite.Run(t, new(RepositoryTestSuite))
        }

        // ========== 场景4:HTTP API(require + assert)==========

        func TestHTTPAPI(t *testing.T) {
            r := require.New(t)
            a := assert.New(t)

            // 创建请求
            requestBody := `{"name":"Alice","email":"alice@example.com"}`
            req, err := http.NewRequest("POST", "/users", strings.NewReader(requestBody))
            r.NoError(err)
            req.Header.Set("Content-Type", "application/json")

            // 执行请求
            rr := httptest.NewRecorder()
            handler := UserHandler()
            handler.ServeHTTP(rr, req)

            // 验证响应
            a.Equal(http.StatusCreated, rr.Code)
            a.Contains(rr.Header().Get("Content-Type"), "application/json")

            var response map[string]interface{}
            json.Unmarshal(rr.Body.Bytes(), &response)
            a.Equal("Alice", response["name"])
        }

        // 辅助函数和类型
        func ToUpper(s string) string { return strings.ToUpper(s) }
        func ToLower(s string) string { return strings.ToLower(s) }
        func Sum(nums []int) int {
            sum := 0
            for _, n := range nums {
                sum += n
            }
            return sum
        }
        func Average(nums []float64) float64 {
            if len(nums) == 0 {
                return 0
            }
            sum := 0.0
            for _, n := range nums {
                sum += n
            }
            return sum / float64(len(nums))
        }
        func IsValidEmail(email string) bool { return strings.Contains(email, "@") }

        type User struct {
            ID    int
            Name  string
            Email string
        }

        type OrderItem struct {
            ProductID int
            Quantity  int
        }

        type Order struct {
            UserID int
            Items  []OrderItem
        }

        type MockUserRepository struct{ mock.Mock }
        func (m *MockUserRepository) FindByID(id int) (*User, error) {
            args := m.Called(id)
            if args.Get(0) == nil {
                return nil, args.Error(1)
            }
            return args.Get(0).(*User), args.Error(1)
        }

        type MockOrderRepository struct{ mock.Mock }
        func (m *MockOrderRepository) Create(order *Order) error {
            args := m.Called(order)
            return args.Error(0)
        }

        type MockNotifier struct{ mock.Mock }
        func (m *MockNotifier) Send(email, message string) error {
            args := m.Called(email, message)
            return args.Error(0)
        }

        type OrderService struct{}
        func NewOrderService(userRepo *MockUserRepository, orderRepo *MockOrderRepository, notifier *MockNotifier) *OrderService {
            return &OrderService{}
        }
        func (s *OrderService) CreateOrder(userID int, items []OrderItem) (*Order, error) {
            return &Order{UserID: userID, Items: items}, nil
        }

        type UserRepository struct{ db *sql.DB }
        func NewUserRepository(db *sql.DB) *UserRepository { return &UserRepository{db: db} }
        func (r *UserRepository) FindByID(id int) (*User, error) { return &User{ID: id, Name: "Alice", Email: "alice@example.com"}, nil }
        func (r *UserRepository) Create(user *User) error { user.ID = 1; return nil }

        func UserHandler() http.Handler {
            return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                w.Header().Set("Content-Type", "application/json")
                w.WriteHeader(http.StatusCreated)
                w.Write([]byte(`{"name":"Alice"}`))
            })
        }
        ---

03.性能考虑
    a.包开销
        assert和require包由于使用反射进行深度比较,有一定性能开销,但在测试场景下完全可以接受。mock包维护期望列表和调用记录,有少量内存开销。suite包使用反射扫描测试方法,启动略慢但执行性能正常。
    b.优化建议
        避免在测试中进行不必要的复杂断言,简单的相等检查即可。合理使用suite的SetupSuite和SetupTest,避免重复初始化。对于性能测试基准测试,考虑使用标准库而非testify以减少干扰。
    c.性能对比
        ---
        // 性能对比基准测试
        package performance

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        // 标准库断言
        func BenchmarkStandardAssertion(b *testing.B) {
            for i := 0; i < b.N; i++ {
                result := Add(2, 3)
                if result != 5 {
                    b.Errorf("expected 5, got %d", result)
                }
            }
        }

        // testify断言
        func BenchmarkTestifyAssertion(b *testing.B) {
            for i := 0; i < b.N; i++ {
                result := Add(2, 3)
                assert.Equal(b, 5, result)
            }
        }

        /*
        结果参考:
        BenchmarkStandardAssertion-8    100000000    12 ns/op
        BenchmarkTestifyAssertion-8      20000000    85 ns/op

        结论:testify约慢7倍,但绝对时间仍在纳秒级
        对于测试场景,这个开销完全可以接受
        */

        func Add(a, b int) int { return a + b }
        ---

04.团队协作
    a.统一规范
        团队应该建立统一的testify使用规范,明确assert vs require的使用场景。统一mock对象的命名和组织方式。统一suite的生命周期钩子使用模式。代码审查时检查测试代码的规范性。
    b.最佳实践
        在项目README中说明测试规范,提供测试示例代码。新成员入职时培训testify使用方法。建立测试模板,降低编写测试的门槛。定期Review测试代码质量,持续改进。
    c.规范示例
        ---
        // 团队测试规范示例
        package standards

        /*
        ========== 项目测试规范 ==========

        1. 包选择规则
           - 前置条件:require包
           - 多个检查:assert包
           - 外部依赖:mock包
           - 复杂初始化:suite包

        2. 命名规范
           - Mock对象:Mock + 接口名(MockUserRepository)
           - 测试套件:类名 + TestSuite(UserServiceTestSuite)
           - 测试函数:Test + 功能描述(TestCreateUser)
           - 子测试:使用Run + 描述性名称

        3. 文件组织
           - 测试文件与源文件同目录
           - 命名:源文件_test.go
           - Mock对象可以单独放在mocks目录

        4. 测试结构
           - 使用AAA模式:Arrange-Act-Assert
           - 每个测试只测试一个行为
           - 测试名称清晰描述测试内容

        5. 断言风格
           - 优先使用New(t)创建断言对象
           - 断言失败提供有意义的消息
           - 相关断言组织在一起

        6. Mock使用
           - Mock对象在测试函数内创建
           - 设置期望后立即使用
           - 测试结束前验证期望

        7. Suite使用
           - 合理使用生命周期钩子
           - 确保测试隔离
           - 避免测试间共享可变状态

        ========== 代码示例 ==========
        */

        // 标准测试函数结构
        func TestStandardStructure(t *testing.T) {
            // Arrange:准备测试数据和mock
            r := require.New(t)
            a := assert.New(t)

            mockRepo := new(MockRepository)
            mockRepo.On("Get", 1).Return("data", nil)

            service := NewService(mockRepo)
            r.NotNil(service)

            // Act:执行被测方法
            result, err := service.Process(1)

            // Assert:验证结果
            a.NoError(err)
            a.Equal("data", result)
            mockRepo.AssertExpectations(t)
        }

        // 使用子测试组织多个场景
        func TestWithSubtests(t *testing.T) {
            t.Run("成功场景", func(t *testing.T) {
                // 测试代码
            })

            t.Run("错误场景", func(t *testing.T) {
                // 测试代码
            })

            t.Run("边界场景", func(t *testing.T) {
                // 测试代码
            })
        }

        type MockRepository struct{ mock.Mock }
        func (m *MockRepository) Get(id int) (string, error) {
            args := m.Called(id)
            return args.String(0), args.Error(1)
        }

        type Service struct{}
        func NewService(repo *MockRepository) *Service { return &Service{} }
        func (s *Service) Process(id int) (string, error) { return "data", nil }
        ---

3 断言系统详解

3.1 基础断言

01.Equal断言
    a.功能说明
        Equal是testify中最常用的断言方法,用于检查两个值是否深度相等。它使用reflect.DeepEqual进行比较,支持所有Go类型包括基本类型、结构体、切片、map、指针等。Equal不仅比较值,还递归比较嵌套的数据结构,确保完全一致。
    b.使用场景
        Equal适用于几乎所有的相等性检查场景。基本类型比较如整数、字符串、布尔值,复杂类型比较如结构体、切片、map,以及指针指向的值比较。Equal是编写测试时的首选断言方法。
    c.代码示例
        ---
        // Equal断言详解
        package equal

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func TestEqualBasicTypes(t *testing.T) {
            a := assert.New(t)

            // 整数比较
            a.Equal(42, 40+2)
            a.Equal(int32(100), int32(100))
            a.Equal(int64(1000), int64(1000))

            // 浮点数比较(注意精度问题)
            a.Equal(3.14, 3.14)
            a.Equal(float32(2.5), float32(2.5))

            // 字符串比较
            a.Equal("hello", "hel"+"lo")
            a.Equal("", "")

            // 布尔值比较
            a.Equal(true, true)
            a.Equal(false, !true)

            // 字节切片比较
            a.Equal([]byte("hello"), []byte("hello"))
        }

        func TestEqualStructs(t *testing.T) {
            a := assert.New(t)

            type Person struct {
                Name string
                Age  int
            }

            // 结构体比较
            p1 := Person{Name: "Alice", Age: 25}
            p2 := Person{Name: "Alice", Age: 25}
            a.Equal(p1, p2)

            // 结构体指针比较(比较值,不是指针地址)
            a.Equal(&p1, &p2)

            // 嵌套结构体比较
            type Address struct {
                City    string
                Country string
            }

            type Employee struct {
                Person  Person
                Address Address
                Salary  float64
            }

            e1 := Employee{
                Person:  Person{Name: "Bob", Age: 30},
                Address: Address{City: "Beijing", Country: "China"},
                Salary:  50000.0,
            }

            e2 := Employee{
                Person:  Person{Name: "Bob", Age: 30},
                Address: Address{City: "Beijing", Country: "China"},
                Salary:  50000.0,
            }

            a.Equal(e1, e2)
        }

        func TestEqualSlices(t *testing.T) {
            a := assert.New(t)

            // 切片比较
            a.Equal([]int{1, 2, 3}, []int{1, 2, 3})
            a.Equal([]string{"a", "b", "c"}, []string{"a", "b", "c"})

            // 空切片vs nil切片(不相等)
            var nilSlice []int
            emptySlice := []int{}
            // a.Equal(nilSlice, emptySlice)  // 失败:nil != []
            a.Nil(nilSlice)
            a.NotNil(emptySlice)

            // 嵌套切片
            nested := [][]int{{1, 2}, {3, 4}, {5, 6}}
            expected := [][]int{{1, 2}, {3, 4}, {5, 6}}
            a.Equal(expected, nested)

            // 结构体切片
            type User struct {
                ID   int
                Name string
            }

            users1 := []User{
                {ID: 1, Name: "Alice"},
                {ID: 2, Name: "Bob"},
            }

            users2 := []User{
                {ID: 1, Name: "Alice"},
                {ID: 2, Name: "Bob"},
            }

            a.Equal(users1, users2)
        }

        func TestEqualMaps(t *testing.T) {
            a := assert.New(t)

            // map比较
            m1 := map[string]int{"a": 1, "b": 2, "c": 3}
            m2 := map[string]int{"a": 1, "b": 2, "c": 3}
            a.Equal(m1, m2)

            // map顺序无关
            m3 := map[string]int{"c": 3, "a": 1, "b": 2}
            a.Equal(m1, m3)

            // 嵌套map
            nested1 := map[string]map[string]int{
                "group1": {"a": 1, "b": 2},
                "group2": {"c": 3, "d": 4},
            }

            nested2 := map[string]map[string]int{
                "group1": {"a": 1, "b": 2},
                "group2": {"c": 3, "d": 4},
            }

            a.Equal(nested1, nested2)

            // map值为结构体
            type Config struct {
                Host string
                Port int
            }

            configs1 := map[string]Config{
                "db":    {Host: "localhost", Port: 3306},
                "redis": {Host: "localhost", Port: 6379},
            }

            configs2 := map[string]Config{
                "db":    {Host: "localhost", Port: 3306},
                "redis": {Host: "localhost", Port: 6379},
            }

            a.Equal(configs1, configs2)
        }

        func TestEqualPointers(t *testing.T) {
            a := assert.New(t)

            // 指针比较(比较指向的值)
            x := 42
            y := 42
            a.Equal(&x, &y)  // 通过:值相等

            // 指针指向相同对象
            p1 := &x
            p2 := &x
            a.Same(p1, p2)   // 使用Same检查指针相同

            // nil指针
            var p3 *int
            var p4 *int
            a.Equal(p3, p4)  // 都是nil
        }
        ---

02.NotEqual断言
    a.功能说明
        NotEqual断言用于检查两个值不相等,是Equal的反向断言。在测试负面场景时非常有用,如验证两个对象确实不同,或验证修改操作确实改变了值。NotEqual同样使用深度比较,确保值在各个层级都不同。
    b.使用场景
        NotEqual适用于验证值确实发生了变化,测试互斥条件,验证不同的输入产生不同的输出。在测试数据修改、状态变更、配置差异等场景中特别有用。
    c.代码示例
        ---
        // NotEqual断言详解
        package notequal

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func TestNotEqualBasics(t *testing.T) {
            a := assert.New(t)

            // 基本类型不相等
            a.NotEqual(1, 2)
            a.NotEqual("hello", "world")
            a.NotEqual(true, false)
            a.NotEqual(3.14, 2.71)

            // 不同类型(即使值看起来相同)
            a.NotEqual(int32(5), int64(5))
            a.NotEqual(float32(1.0), float64(1.0))
        }

        func TestNotEqualAfterModification(t *testing.T) {
            a := assert.New(t)

            type Counter struct {
                Value int
            }

            counter := Counter{Value: 0}
            before := counter

            // 修改后应该不相等
            counter.Value = 10
            a.NotEqual(before, counter)

            // 验证确实改变了
            a.Equal(0, before.Value)
            a.Equal(10, counter.Value)
        }

        func TestNotEqualSlices(t *testing.T) {
            a := assert.New(t)

            // 不同长度
            a.NotEqual([]int{1, 2, 3}, []int{1, 2})

            // 相同长度不同元素
            a.NotEqual([]int{1, 2, 3}, []int{1, 2, 4})

            // 不同顺序
            a.NotEqual([]int{1, 2, 3}, []int{3, 2, 1})
        }

        func TestNotEqualMaps(t *testing.T) {
            a := assert.New(t)

            m1 := map[string]int{"a": 1, "b": 2}
            m2 := map[string]int{"a": 1, "b": 3}  // b的值不同
            m3 := map[string]int{"a": 1}          // 缺少b

            a.NotEqual(m1, m2)
            a.NotEqual(m1, m3)
        }
        ---

03.Nil和NotNil断言
    a.功能说明
        Nil断言检查值是否为nil,NotNil检查值不为nil。在Go语言中,可以为nil的类型包括指针、接口、切片、map、channel和函数。Nil断言是测试中最常用的存在性检查方法,特别是在检查函数返回值时。
    b.nil类型说明
        Go语言中nil的含义因类型而异。对于指针,nil表示不指向任何对象。对于接口,nil表示没有存储任何值。对于切片和map,nil表示未初始化。对于channel,nil表示未创建。理解nil的语义对正确使用Nil断言很重要。
    c.代码示例
        ---
        // Nil和NotNil断言详解
        package nil

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "errors"
        )

        func TestNilPointers(t *testing.T) {
            a := assert.New(t)

            // nil指针
            var ptr *int
            a.Nil(ptr)

            // 非nil指针
            x := 42
            a.NotNil(&x)

            // 结构体指针
            type User struct {
                Name string
            }

            var user *User
            a.Nil(user)

            user = &User{Name: "Alice"}
            a.NotNil(user)
        }

        func TestNilInterfaces(t *testing.T) {
            a := assert.New(t)

            // nil error接口
            var err error
            a.Nil(err)

            // 非nil error
            err = errors.New("something went wrong")
            a.NotNil(err)

            // nil接口值
            var reader io.Reader
            a.Nil(reader)

            // 非nil接口值
            reader = strings.NewReader("hello")
            a.NotNil(reader)
        }

        func TestNilSlices(t *testing.T) {
            a := assert.New(t)

            // nil切片
            var slice []int
            a.Nil(slice)

            // 空切片(不是nil)
            emptySlice := []int{}
            a.NotNil(emptySlice)

            // make创建的切片
            madeSlice := make([]int, 0)
            a.NotNil(madeSlice)

            // nil切片和空切片的区别
            a.Len(slice, 0)       // nil切片长度为0
            a.Len(emptySlice, 0)  // 空切片长度也为0
            // 但它们不相等
            a.NotEqual(slice, emptySlice)
        }

        func TestNilMaps(t *testing.T) {
            a := assert.New(t)

            // nil map
            var m map[string]int
            a.Nil(m)

            // 空map(不是nil)
            emptyMap := map[string]int{}
            a.NotNil(emptyMap)

            // make创建的map
            madeMap := make(map[string]int)
            a.NotNil(madeMap)

            // nil map不能写入(会panic)
            // m["key"] = 1  // panic!

            // 空map可以写入
            emptyMap["key"] = 1
            a.Equal(1, emptyMap["key"])
        }

        func TestNilChannels(t *testing.T) {
            a := assert.New(t)

            // nil channel
            var ch chan int
            a.Nil(ch)

            // 创建的channel
            ch = make(chan int)
            a.NotNil(ch)
            defer close(ch)
        }

        func TestNilFunctions(t *testing.T) {
            a := assert.New(t)

            // nil函数
            var fn func()
            a.Nil(fn)

            // 非nil函数
            fn = func() {}
            a.NotNil(fn)
        }

        func TestNilInReturnValues(t *testing.T) {
            a := assert.New(t)

            // 测试返回nil的函数
            user, err := FindUser(999)
            a.Nil(user)
            a.NotNil(err)

            // 测试返回非nil的函数
            user, err = FindUser(1)
            a.NotNil(user)
            a.Nil(err)
        }

        type User struct {
            ID   int
            Name string
        }

        func FindUser(id int) (*User, error) {
            if id == 999 {
                return nil, errors.New("user not found")
            }
            return &User{ID: id, Name: "Alice"}, nil
        }
        ---

04.True和False断言
    a.功能说明
        True断言检查布尔表达式是否为true,False检查是否为false。虽然看似简单,但在测试复杂条件、验证状态、检查标志位等场景中非常实用。True和False让测试代码更加语义化和易读。
    b.使用技巧
        True和False适合测试返回布尔值的函数,验证复杂的条件表达式,检查对象的状态标志。相比使用Equal(true, value),使用True(value)更加简洁和直观。可以配合自定义错误消息,清楚说明被测试的条件。
    c.代码示例
        ---
        // True和False断言详解
        package boolean

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "strings"
            "regexp"
        )

        func TestTrueBasics(t *testing.T) {
            a := assert.New(t)

            // 直接的布尔值
            a.True(true)
            a.False(false)

            // 布尔表达式
            a.True(5 > 3)
            a.False(5 < 3)
            a.True(10 == 10)
            a.False(10 != 10)
        }

        func TestTrueFunctions(t *testing.T) {
            a := assert.New(t)

            // 测试返回bool的函数
            a.True(IsValidEmail("user@example.com"))
            a.False(IsValidEmail("invalid"))

            a.True(IsPrime(7))
            a.False(IsPrime(8))

            a.True(IsEmpty(""))
            a.False(IsEmpty("hello"))
        }

        func TestTrueConditions(t *testing.T) {
            a := assert.New(t)

            user := User{
                Name:     "Alice",
                Age:      25,
                Active:   true,
                Verified: true,
            }

            // 测试对象状态
            a.True(user.Active, "用户应该是激活状态")
            a.True(user.Verified, "用户应该已验证")
            a.True(user.Age >= 18, "用户应该是成年人")
            a.True(len(user.Name) > 0, "用户名不应为空")

            // 组合条件
            a.True(user.Active && user.Verified, "用户应该激活且已验证")
            a.True(user.Age >= 18 && user.Age < 65, "用户年龄应在18-65之间")
        }

        func TestTrueStringOperations(t *testing.T) {
            a := assert.New(t)

            text := "Hello, World!"

            // 字符串检查
            a.True(strings.Contains(text, "World"))
            a.True(strings.HasPrefix(text, "Hello"))
            a.True(strings.HasSuffix(text, "!"))
            a.True(len(text) > 10)

            // 正则匹配
            matched, _ := regexp.MatchString(`^Hello`, text)
            a.True(matched)
        }

        func TestTrueCollections(t *testing.T) {
            a := assert.New(t)

            numbers := []int{1, 2, 3, 4, 5}

            // 集合检查
            a.True(len(numbers) == 5)
            a.True(len(numbers) > 0)
            a.True(contains(numbers, 3))
            a.False(contains(numbers, 10))

            // map检查
            config := map[string]string{
                "host": "localhost",
                "port": "8080",
            }

            _, exists := config["host"]
            a.True(exists, "配置应该包含host")

            _, exists = config["password"]
            a.False(exists, "配置不应该包含password")
        }

        func TestTrueCustomValidation(t *testing.T) {
            a := assert.New(t)

            // 自定义验证逻辑
            password := "MyP@ssw0rd"
            a.True(len(password) >= 8, "密码长度应该>=8")
            a.True(containsUpperCase(password), "密码应包含大写字母")
            a.True(containsLowerCase(password), "密码应包含小写字母")
            a.True(containsDigit(password), "密码应包含数字")
            a.True(containsSpecialChar(password), "密码应包含特殊字符")
        }

        type User struct {
            Name     string
            Age      int
            Active   bool
            Verified bool
        }

        func IsValidEmail(email string) bool {
            return strings.Contains(email, "@") && strings.Contains(email, ".")
        }

        func IsPrime(n int) bool {
            if n < 2 {
                return false
            }
            for i := 2; i*i <= n; i++ {
                if n%i == 0 {
                    return false
                }
            }
            return true
        }

        func IsEmpty(s string) bool {
            return len(s) == 0
        }

        func contains(slice []int, value int) bool {
            for _, v := range slice {
                if v == value {
                    return true
                }
            }
            return false
        }

        func containsUpperCase(s string) bool {
            for _, c := range s {
                if c >= 'A' && c <= 'Z' {
                    return true
                }
            }
            return false
        }

        func containsLowerCase(s string) bool {
            for _, c := range s {
                if c >= 'a' && c <= 'z' {
                    return true
                }
            }
            return false
        }

        func containsDigit(s string) bool {
            for _, c := range s {
                if c >= '0' && c <= '9' {
                    return true
                }
            }
            return false
        }

        func containsSpecialChar(s string) bool {
            return strings.ContainsAny(s, "!@#$%^&*()_+-=[]{}|;:,.<>?")
        }
        ---

3.2 比较断言

01.数值比较断言
    a.Greater和Less系列
        testify提供完整的数值比较断言方法。Greater检查值大于,GreaterOrEqual检查大于等于,Less检查小于,LessOrEqual检查小于等于。这些方法支持所有可比较的数值类型,让数值范围验证变得简单直观。
    b.Positive和Negative
        Positive断言检查数值是否为正数,Negative检查是否为负数。这两个方法是Greater和Less的特殊形式,用于检查数值的符号,使测试代码更加语义化。
    c.代码示例
        ---
        // 数值比较断言详解
        package comparison

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "time"
        )

        func TestGreaterAndLess(t *testing.T) {
            a := assert.New(t)

            // Greater:大于
            a.Greater(10, 5)
            a.Greater(3.14, 2.71)
            a.Greater(int64(1000), int64(999))

            // GreaterOrEqual:大于等于
            a.GreaterOrEqual(10, 10)
            a.GreaterOrEqual(10, 5)
            a.GreaterOrEqual(100.0, 100.0)

            // Less:小于
            a.Less(5, 10)
            a.Less(-1, 0)
            a.Less(1.5, 2.5)

            // LessOrEqual:小于等于
            a.LessOrEqual(5, 5)
            a.LessOrEqual(5, 10)
            a.LessOrEqual(-10.0, -10.0)
        }

        func TestPositiveAndNegative(t *testing.T) {
            a := assert.New(t)

            // Positive:正数
            a.Positive(1)
            a.Positive(42)
            a.Positive(3.14)
            a.Positive(int64(1000))

            // Negative:负数
            a.Negative(-1)
            a.Negative(-42)
            a.Negative(-3.14)
            a.Negative(int64(-1000))

            // 零不是正数也不是负数
            // a.Positive(0)  // 失败
            // a.Negative(0)  // 失败
        }

        func TestComparisonUseCases(t *testing.T) {
            a := assert.New(t)

            // 场景1:年龄验证
            age := 25
            a.GreaterOrEqual(age, 18, "必须是成年人")
            a.Less(age, 65, "必须是工作年龄")

            // 场景2:分数验证
            score := 85.5
            a.GreaterOrEqual(score, 0.0, "分数不能为负")
            a.LessOrEqual(score, 100.0, "分数不能超过100")
            a.GreaterOrEqual(score, 60.0, "分数及格")

            // 场景3:价格验证
            price := 99.99
            a.Positive(price, "价格必须为正")
            a.Less(price, 1000.0, "价格合理")

            // 场景4:余额验证
            balance := -50.0
            a.Negative(balance, "账户透支")

            // 场景5:数组长度验证
            items := []int{1, 2, 3, 4, 5}
            a.Greater(len(items), 0, "列表不能为空")
            a.LessOrEqual(len(items), 100, "列表不能太长")
        }

        func TestComparisonWithDifferentTypes(t *testing.T) {
            a := assert.New(t)

            // int类型
            var i int = 10
            a.Greater(i, 5)

            // int32类型
            var i32 int32 = 10
            a.Greater(i32, int32(5))

            // int64类型
            var i64 int64 = 10
            a.Greater(i64, int64(5))

            // float32类型
            var f32 float32 = 10.5
            a.Greater(f32, float32(5.5))

            // float64类型
            var f64 float64 = 10.5
            a.Greater(f64, 5.5)

            // uint类型
            var u uint = 10
            a.Greater(u, uint(5))
        }

        func TestComparisonWithTime(t *testing.T) {
            a := assert.New(t)

            now := time.Now()
            past := now.Add(-1 * time.Hour)
            future := now.Add(1 * time.Hour)

            // 时间比较(Time实现了comparable接口)
            a.True(future.After(now))
            a.True(past.Before(now))

            // 使用Greater比较Unix时间戳
            a.Greater(future.Unix(), now.Unix())
            a.Less(past.Unix(), now.Unix())
        }
        ---

02.浮点数比较断言
    a.InDelta系列
        由于浮点数精度问题,直接使用Equal比较浮点数可能失败。InDelta允许指定误差范围,只要两个浮点数的差值在delta范围内就认为相等。InDeltaSlice和InDeltaMapValues分别用于比较浮点数切片和map。
    b.InEpsilon相对误差
        InEpsilon使用相对误差而非绝对误差进行比较,适合比较不同数量级的浮点数。epsilon表示相对误差的百分比,如0.01表示允许1%的误差。
    c.代码示例
        ---
        // 浮点数比较断言详解
        package float

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "math"
        )

        func TestInDelta(t *testing.T) {
            a := assert.New(t)

            // InDelta:绝对误差比较
            // 0.1 + 0.2 在浮点数运算中不完全等于0.3
            result := 0.1 + 0.2
            a.InDelta(0.3, result, 0.0001, "允许0.0001的误差")

            // 直接Equal会失败
            // a.Equal(0.3, result)  // 可能失败

            // 更多示例
            a.InDelta(3.14159, math.Pi, 0.00001)
            a.InDelta(2.71828, math.E, 0.00001)

            // 较大的数值
            a.InDelta(1000000.0, 1000000.5, 1.0)
        }

        func TestInDeltaSlice(t *testing.T) {
            a := assert.New(t)

            // InDeltaSlice:切片中每个元素都允许误差
            expected := []float64{1.0, 2.0, 3.0}
            actual := []float64{1.0001, 1.9999, 3.0001}

            a.InDeltaSlice(expected, actual, 0.001)

            // 科学计算结果比较
            calculated := []float64{
                math.Sqrt(2),
                math.Sqrt(3),
                math.Sqrt(5),
            }

            expected2 := []float64{
                1.414213562373095,
                1.732050807568877,
                2.236067977499790,
            }

            a.InDeltaSlice(expected2, calculated, 0.000000000000001)
        }

        func TestInDeltaMapValues(t *testing.T) {
            a := assert.New(t)

            // InDeltaMapValues:map中每个值都允许误差
            expected := map[string]float64{
                "pi": 3.14159,
                "e":  2.71828,
            }

            actual := map[string]float64{
                "pi": 3.14160,
                "e":  2.71829,
            }

            a.InDeltaMapValues(expected, actual, 0.00001)
        }

        func TestInEpsilon(t *testing.T) {
            a := assert.New(t)

            // InEpsilon:相对误差比较
            // 允许1%的相对误差
            a.InEpsilon(1000, 1010, 0.01)
            a.InEpsilon(100, 101, 0.01)

            // 不同数量级的数值
            a.InEpsilon(1000000, 1010000, 0.01)  // 1%误差
            a.InEpsilon(0.001, 0.00101, 0.01)    // 1%误差

            // 金融计算
            price := 99.99
            discountedPrice := price * 0.9
            a.InEpsilon(89.991, discountedPrice, 0.001)
        }

        func TestInEpsilonSlice(t *testing.T) {
            a := assert.New(t)

            // InEpsilonSlice:切片相对误差比较
            expected := []float64{100, 200, 300}
            actual := []float64{101, 202, 303}

            a.InEpsilonSlice(expected, actual, 0.02)  // 允许2%误差
        }

        func TestFloatComparisonScenarios(t *testing.T) {
            a := assert.New(t)

            // 场景1:物理计算
            g := 9.8          // 重力加速度
            calculated := 9.81
            a.InDelta(g, calculated, 0.1)

            // 场景2:统计计算
            mean := 10.5
            variance := 2.3
            stddev := math.Sqrt(variance)
            expectedStddev := 1.5165750888103102
            a.InDelta(expectedStddev, stddev, 0.0001)

            // 场景3:金融计算
            principal := 10000.0
            rate := 0.05
            years := 10.0
            amount := principal * math.Pow(1+rate, years)
            expectedAmount := 16288.95
            a.InDelta(expectedAmount, amount, 1.0)

            // 场景4:机器学习(损失函数)
            loss := 0.0234567
            targetLoss := 0.0234000
            a.InDelta(targetLoss, loss, 0.0001)
        }

        func TestFloatEdgeCases(t *testing.T) {
            a := assert.New(t)

            // 零值比较
            a.InDelta(0.0, 0.0, 0.0001)
            a.InDelta(0.0, 0.00001, 0.0001)

            // 负数比较
            a.InDelta(-3.14, -3.141, 0.01)

            // 非常小的数
            a.InDelta(1e-10, 1.1e-10, 1e-11)

            // 非常大的数
            a.InDelta(1e10, 1.0000001e10, 1e3)

            // 无穷大
            a.Equal(math.Inf(1), math.Inf(1))
            a.NotEqual(math.Inf(1), math.Inf(-1))

            // NaN(不能用Equal比较)
            a.True(math.IsNaN(math.NaN()))
        }
        ---

03.字符串比较断言
    a.Contains和NotContains
        Contains检查字符串是否包含子串,NotContains检查不包含。这两个方法也适用于切片和map,用于检查集合是否包含特定元素。Contains是测试中非常常用的断言方法。
    b.Regexp和NotRegexp
        Regexp使用正则表达式匹配字符串,NotRegexp检查不匹配。适合验证字符串格式如邮箱、电话号码、URL等。正则表达式可以是字符串或编译好的regexp.Regexp对象。
    c.代码示例
        ---
        // 字符串比较断言详解
        package string

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "regexp"
        )

        func TestContains(t *testing.T) {
            a := assert.New(t)

            // 字符串包含
            text := "Hello, World!"
            a.Contains(text, "World")
            a.Contains(text, "Hello")
            a.Contains(text, ",")
            a.NotContains(text, "Goodbye")

            // 大小写敏感
            a.Contains("Hello", "Hell")
            a.NotContains("Hello", "hell")  // 小写

            // 空字符串
            a.Contains("hello", "")  // 任何字符串都包含空字符串

            // 错误消息中的关键字
            errMsg := "failed to connect to database: connection timeout"
            a.Contains(errMsg, "database")
            a.Contains(errMsg, "timeout")
            a.NotContains(errMsg, "success")
        }

        func TestRegexp(t *testing.T) {
            a := assert.New(t)

            // 邮箱验证
            email := "user@example.com"
            emailPattern := `^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$`
            a.Regexp(emailPattern, email)

            invalidEmail := "invalid-email"
            a.NotRegexp(emailPattern, invalidEmail)

            // 电话号码验证
            phone := "13812345678"
            phonePattern := `^1[3-9]\d{9}$`
            a.Regexp(phonePattern, phone)

            // URL验证
            url := "https://www.example.com/path?query=value"
            urlPattern := `^https?://[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}`
            a.Regexp(urlPattern, url)

            // 日期格式验证
            date := "2024-01-15"
            datePattern := `^\d{4}-\d{2}-\d{2}$`
            a.Regexp(datePattern, date)

            // IP地址验证
            ip := "192.168.1.1"
            ipPattern := `^(\d{1,3}\.){3}\d{1,3}$`
            a.Regexp(ipPattern, ip)
        }

        func TestRegexpWithCompiledPattern(t *testing.T) {
            a := assert.New(t)

            // 预编译的正则表达式
            emailRegex := regexp.MustCompile(`^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$`)

            a.Regexp(emailRegex, "user@example.com")
            a.NotRegexp(emailRegex, "invalid")
        }

        func TestStringComparisonScenarios(t *testing.T) {
            a := assert.New(t)

            // 场景1:日志消息验证
            logMsg := "[INFO] 2024-01-15 10:30:45 User logged in successfully"
            a.Contains(logMsg, "[INFO]")
            a.Contains(logMsg, "User logged in")
            a.Regexp(`\d{4}-\d{2}-\d{2}`, logMsg)

            // 场景2:API响应验证
            apiResponse := `{"status":"success","data":{"id":123,"name":"Alice"}}`
            a.Contains(apiResponse, "success")
            a.Contains(apiResponse, "Alice")
            a.Regexp(`"id":\d+`, apiResponse)

            // 场景3:文件路径验证
            filepath := "/home/user/documents/file.txt"
            a.Contains(filepath, "/documents/")
            a.Contains(filepath, "file.txt")
            a.Regexp(`\.txt$`, filepath)

            // 场景4:版本号验证
            version := "v1.2.3"
            a.Regexp(`^v\d+\.\d+\.\d+$`, version)

            // 场景5:SQL查询验证
            query := "SELECT * FROM users WHERE age > 18 ORDER BY name"
            a.Contains(query, "SELECT")
            a.Contains(query, "FROM users")
            a.Regexp(`WHERE\s+\w+\s*[><=]`, query)
        }

        func TestHasPrefixAndSuffix(t *testing.T) {
            a := assert.New(t)

            text := "prefix_content_suffix"

            // 使用Contains模拟HasPrefix
            a.True(strings.HasPrefix(text, "prefix_"))
            a.False(strings.HasPrefix(text, "suffix"))

            // 使用Contains模拟HasSuffix
            a.True(strings.HasSuffix(text, "_suffix"))
            a.False(strings.HasSuffix(text, "prefix"))

            // 或使用Regexp
            a.Regexp(`^prefix_`, text)
            a.Regexp(`_suffix$`, text)
        }
        ---

04.Same断言
    a.功能说明
        Same断言检查两个指针是否指向同一个对象,即内存地址相同。与Equal不同,Same不比较值,只比较指针地址。Same适合验证对象引用、单例模式、缓存命中等场景。
    b.Same vs Equal
        Equal比较值是否相等,即使是不同对象只要值相同就通过。Same比较指针地址,只有指向同一对象才通过。理解两者的区别对正确使用断言很重要。
    c.代码示例
        ---
        // Same断言详解
        package same

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func TestSameBasics(t *testing.T) {
            a := assert.New(t)

            // 指向同一对象
            obj := &User{Name: "Alice"}
            ref1 := obj
            ref2 := obj

            a.Same(ref1, ref2)  // 通过:指向同一对象
            a.Equal(ref1, ref2) // 也通过:值相等

            // 不同对象但值相等
            obj1 := &User{Name: "Alice"}
            obj2 := &User{Name: "Alice"}

            a.NotSame(obj1, obj2)  // 通过:不是同一对象
            a.Equal(obj1, obj2)    // 通过:值相等
        }

        func TestSameSingleton(t *testing.T) {
            a := assert.New(t)

            // 测试单例模式
            config1 := GetConfig()
            config2 := GetConfig()

            a.Same(config1, config2, "配置应该是单例")
        }

        func TestSameCache(t *testing.T) {
            a := assert.New(t)

            cache := NewCache()

            // 第一次获取,创建对象
            user1 := cache.Get("user1")
            a.NotNil(user1)

            // 第二次获取,应该返回缓存的对象
            user2 := cache.Get("user1")
            a.Same(user1, user2, "应该返回缓存的对象")

            // 不同的key,返回不同的对象
            user3 := cache.Get("user2")
            a.NotSame(user1, user3)
        }

        func TestSameSlices(t *testing.T) {
            a := assert.New(t)

            slice1 := []int{1, 2, 3}
            slice2 := slice1  // 共享底层数组
            slice3 := []int{1, 2, 3}  // 新切片

            // slice1和slice2共享底层数组,但切片头不同
            // Same检查切片头的地址
            a.Equal(slice1, slice2)
            // a.Same(&slice1, &slice2)  // 需要比较切片头的地址

            // slice1和slice3值相等但是不同的切片
            a.Equal(slice1, slice3)
            a.NotSame(&slice1, &slice3)
        }

        type User struct {
            Name string
        }

        var configInstance *Config

        type Config struct {
            Host string
        }

        func GetConfig() *Config {
            if configInstance == nil {
                configInstance = &Config{Host: "localhost"}
            }
            return configInstance
        }

        type Cache struct {
            data map[string]*User
        }

        func NewCache() *Cache {
            return &Cache{data: make(map[string]*User)}
        }

        func (c *Cache) Get(key string) *User {
            if user, exists := c.data[key]; exists {
                return user
            }
            user := &User{Name: key}
            c.data[key] = user
            return user
        }
        ---

3.3 集合断言

01.Len断言
    a.功能说明
        Len断言检查集合的长度,支持字符串、数组、切片、map、channel等所有具有长度概念的类型。Len是最常用的集合断言之一,用于验证集合大小符合预期。相比手动检查len()然后用Equal断言,Len提供更清晰的错误信息。
    b.使用场景
        Len适用于验证查询结果数量,检查批处理的元素个数,确认过滤后的集合大小,验证分页数据的条数。在测试数据操作时,Len是必不可少的断言方法。
    c.代码示例
        ---
        // Len断言详解
        package length

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func TestLenBasics(t *testing.T) {
            a := assert.New(t)

            // 字符串长度
            a.Len("hello", 5)
            a.Len("", 0)
            a.Len("你好世界", 4)  // UTF-8字符数

            // 切片长度
            a.Len([]int{1, 2, 3}, 3)
            a.Len([]int{}, 0)
            a.Len([]string{"a", "b", "c", "d"}, 4)

            // 数组长度
            arr := [5]int{1, 2, 3, 4, 5}
            a.Len(arr, 5)

            // map长度
            m := map[string]int{"a": 1, "b": 2}
            a.Len(m, 2)

            // channel长度(缓冲区中的元素数)
            ch := make(chan int, 10)
            a.Len(ch, 0)
            ch <- 1
            ch <- 2
            a.Len(ch, 2)
        }

        func TestLenScenarios(t *testing.T) {
            a := assert.New(t)

            // 场景1:查询结果验证
            users := QueryUsers()
            a.Len(users, 3, "应该返回3个用户")

            // 场景2:过滤操作验证
            numbers := []int{1, 2, 3, 4, 5, 6}
            evens := Filter(numbers, func(n int) bool { return n%2 == 0 })
            a.Len(evens, 3, "应该有3个偶数")

            // 场景3:分页数据验证
            pageSize := 10
            items := GetPage(1, pageSize)
            a.Len(items, pageSize, "每页应该有10条数据")

            // 场景4:批处理验证
            batch := []string{"item1", "item2", "item3"}
            results := ProcessBatch(batch)
            a.Len(results, len(batch), "结果数量应该等于输入数量")
        }

        func TestLenEmpty(t *testing.T) {
            a := assert.New(t)

            // 空集合
            a.Len([]int{}, 0)
            a.Len("", 0)
            a.Len(map[string]int{}, 0)

            // 也可以使用Empty断言
            a.Empty([]int{})
            a.Empty("")
            a.Empty(map[string]int{})
        }

        func TestLenAfterOperations(t *testing.T) {
            a := assert.New(t)

            // 添加操作
            list := []int{1, 2, 3}
            a.Len(list, 3)

            list = append(list, 4, 5)
            a.Len(list, 5)

            // 删除操作
            list = list[:3]
            a.Len(list, 3)

            // map操作
            m := make(map[string]int)
            a.Len(m, 0)

            m["a"] = 1
            m["b"] = 2
            a.Len(m, 2)

            delete(m, "a")
            a.Len(m, 1)
        }

        // 辅助函数
        type User struct{ Name string }

        func QueryUsers() []User {
            return []User{{Name: "Alice"}, {Name: "Bob"}, {Name: "Charlie"}}
        }

        func Filter(nums []int, fn func(int) bool) []int {
            result := []int{}
            for _, n := range nums {
                if fn(n) {
                    result = append(result, n)
                }
            }
            return result
        }

        func GetPage(page, size int) []string {
            items := make([]string, size)
            for i := 0; i < size; i++ {
                items[i] = fmt.Sprintf("item%d", i)
            }
            return items
        }

        func ProcessBatch(items []string) []string {
            return items
        }
        ---

02.Empty和NotEmpty断言
    a.功能说明
        Empty断言检查集合是否为空,NotEmpty检查不为空。Empty不仅检查长度为0,还检查零值。对于字符串、切片、数组、map,Empty检查长度为0。对于指针、接口,Empty检查是否为nil。对于数值,Empty检查是否为0。
    b.Empty vs Len
        Empty和Len(x, 0)效果相似但语义不同。Empty表达"这个集合是空的",Len(x, 0)表达"这个集合的长度是0"。Empty还能处理nil切片和空切片,而Len只能处理非nil值。使用Empty让测试意图更清晰。
    c.代码示例
        ---
        // Empty和NotEmpty断言详解
        package empty

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func TestEmpty(t *testing.T) {
            a := assert.New(t)

            // 空字符串
            a.Empty("")
            a.NotEmpty("hello")

            // 空切片
            a.Empty([]int{})
            var nilSlice []int
            a.Empty(nilSlice)  // nil切片也是空的
            a.NotEmpty([]int{1, 2, 3})

            // 空map
            a.Empty(map[string]int{})
            var nilMap map[string]int
            a.Empty(nilMap)  // nil map也是空的
            a.NotEmpty(map[string]int{"a": 1})

            // 零值
            a.Empty(0)
            a.Empty(false)
            a.Empty(0.0)
            a.NotEmpty(1)
            a.NotEmpty(true)
        }

        func TestEmptyScenarios(t *testing.T) {
            a := assert.New(t)

            // 场景1:搜索结果为空
            results := Search("nonexistent")
            a.Empty(results, "应该没有搜索结果")

            // 场景2:过滤后为空
            numbers := []int{1, 3, 5, 7}
            evens := FilterEvens(numbers)
            a.Empty(evens, "没有偶数")

            // 场景3:清空操作
            list := []string{"a", "b", "c"}
            a.NotEmpty(list)

            list = []string{}
            a.Empty(list, "列表应该被清空")

            // 场景4:可选字段为空
            config := Config{
                Host: "localhost",
                // Port为零值
            }
            a.NotEmpty(config.Host)
            a.Empty(config.Port, "Port未设置")
        }

        func TestEmptyVsNil(t *testing.T) {
            a := assert.New(t)

            // nil切片
            var nilSlice []int
            a.Nil(nilSlice)
            a.Empty(nilSlice)

            // 空切片(不是nil)
            emptySlice := []int{}
            a.NotNil(emptySlice)
            a.Empty(emptySlice)

            // Empty可以处理两种情况
            // 但Nil只能检查nil
        }

        type Config struct {
            Host string
            Port int
        }

        func Search(keyword string) []string {
            return []string{}
        }

        func FilterEvens(nums []int) []int {
            result := []int{}
            for _, n := range nums {
                if n%2 == 0 {
                    result = append(result, n)
                }
            }
            return result
        }
        ---

03.Contains断言
    a.功能说明
        Contains断言检查集合是否包含指定元素。对于字符串,检查是否包含子串。对于切片和数组,检查是否包含指定元素。对于map,检查是否包含指定的键。Contains是实现集合成员检查的便捷方法。
    b.NotContains
        NotContains检查集合不包含指定元素,是Contains的反向断言。适用于验证黑名单、排除特定项、确认删除操作等场景。
    c.代码示例
        ---
        // Contains断言详解
        package contains

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func TestContainsString(t *testing.T) {
            a := assert.New(t)

            text := "Hello, World!"
            a.Contains(text, "World")
            a.Contains(text, "Hello")
            a.Contains(text, ", ")
            a.NotContains(text, "Goodbye")

            // 大小写敏感
            a.Contains("Hello", "Hell")
            a.NotContains("Hello", "hell")
        }

        func TestContainsSlice(t *testing.T) {
            a := assert.New(t)

            numbers := []int{1, 2, 3, 4, 5}
            a.Contains(numbers, 3)
            a.Contains(numbers, 1)
            a.Contains(numbers, 5)
            a.NotContains(numbers, 10)

            // 字符串切片
            names := []string{"Alice", "Bob", "Charlie"}
            a.Contains(names, "Bob")
            a.NotContains(names, "David")
        }

        func TestContainsMap(t *testing.T) {
            a := assert.New(t)

            // map包含检查键
            m := map[string]int{
                "a": 1,
                "b": 2,
                "c": 3,
            }

            a.Contains(m, "a")
            a.Contains(m, "b")
            a.NotContains(m, "d")
        }

        func TestContainsScenarios(t *testing.T) {
            a := assert.New(t)

            // 场景1:权限检查
            userPermissions := []string{"read", "write", "delete"}
            a.Contains(userPermissions, "write", "用户应该有写权限")
            a.NotContains(userPermissions, "admin", "用户不应该有管理员权限")

            // 场景2:标签检查
            tags := []string{"go", "testing", "unit-test"}
            a.Contains(tags, "testing")

            // 场景3:错误消息检查
            errMsg := "failed to connect to database"
            a.Contains(errMsg, "database")
            a.Contains(errMsg, "failed")

            // 场景4:配置键检查
            config := map[string]string{
                "host": "localhost",
                "port": "8080",
            }
            a.Contains(config, "host")
            a.NotContains(config, "password")
        }

        func TestContainsStructSlice(t *testing.T) {
            a := assert.New(t)

            type User struct {
                ID   int
                Name string
            }

            users := []User{
                {ID: 1, Name: "Alice"},
                {ID: 2, Name: "Bob"},
                {ID: 3, Name: "Charlie"},
            }

            // 直接比较结构体
            a.Contains(users, User{ID: 2, Name: "Bob"})
            a.NotContains(users, User{ID: 4, Name: "David"})
        }
        ---

04.ElementsMatch断言
    a.功能说明
        ElementsMatch断言检查两个切片包含相同的元素,但忽略顺序。这对于测试返回无序结果的函数非常有用,如查询数据库、并发处理、集合操作等。ElementsMatch还能正确处理重复元素。
    b.ElementsMatch vs Equal
        Equal要求元素顺序完全一致,ElementsMatch忽略顺序只检查元素集合。当函数返回的顺序不确定时,使用ElementsMatch避免测试不稳定。如果顺序很重要,使用Equal。
    c.代码示例
        ---
        // ElementsMatch断言详解
        package elementsmatch

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func TestElementsMatchBasics(t *testing.T) {
            a := assert.New(t)

            // 相同元素,不同顺序
            a.ElementsMatch(
                []int{1, 2, 3},
                []int{3, 2, 1},
            )

            // 相同元素,顺序相同
            a.ElementsMatch(
                []int{1, 2, 3},
                []int{1, 2, 3},
            )

            // 包含重复元素
            a.ElementsMatch(
                []int{1, 2, 2, 3},
                []int{2, 3, 1, 2},
            )

            // 不同元素
            // a.ElementsMatch([]int{1, 2, 3}, []int{1, 2, 4})  // 失败
        }

        func TestElementsMatchStrings(t *testing.T) {
            a := assert.New(t)

            expected := []string{"apple", "banana", "cherry"}
            actual := []string{"cherry", "apple", "banana"}

            a.ElementsMatch(expected, actual)
        }

        func TestElementsMatchScenarios(t *testing.T) {
            a := assert.New(t)

            // 场景1:数据库查询(结果顺序不确定)
            expected := []User{
                {ID: 1, Name: "Alice"},
                {ID: 2, Name: "Bob"},
                {ID: 3, Name: "Charlie"},
            }

            actual := QueryUsers()  // 返回顺序可能不同
            a.ElementsMatch(expected, actual)

            // 场景2:并发处理结果
            expected2 := []int{1, 2, 3, 4, 5}
            actual2 := ProcessConcurrently([]int{1, 2, 3, 4, 5})
            a.ElementsMatch(expected2, actual2)

            // 场景3:集合操作
            set1 := []string{"a", "b", "c"}
            set2 := []string{"c", "a", "b"}
            a.ElementsMatch(set1, set2)
        }

        func TestElementsMatchWithDuplicates(t *testing.T) {
            a := assert.New(t)

            // 重复元素的数量必须相同
            a.ElementsMatch(
                []int{1, 1, 2, 2, 3},
                []int{2, 1, 3, 2, 1},
            )

            // 重复次数不同会失败
            // a.ElementsMatch(
            //     []int{1, 1, 2},
            //     []int{1, 2, 2},
            // )  // 失败
        }

        type User struct {
            ID   int
            Name string
        }

        func QueryUsers() []User {
            // 模拟数据库查询,顺序不确定
            return []User{
                {ID: 2, Name: "Bob"},
                {ID: 1, Name: "Alice"},
                {ID: 3, Name: "Charlie"},
            }
        }

        func ProcessConcurrently(items []int) []int {
            // 模拟并发处理,返回顺序不确定
            return []int{5, 3, 1, 4, 2}
        }
        ---

05.Subset和NotSubset断言
    a.功能说明
        Subset断言检查一个集合是否是另一个集合的子集,即第一个集合的所有元素都在第二个集合中。NotSubset检查不是子集关系。子集断言适合验证过滤操作、权限检查、配置验证等场景。
    b.子集关系
        空集合是任何集合的子集。集合是自身的子集。子集关系不关心顺序,只关心元素是否都存在。子集可以有重复元素,但重复次数不能超过父集合。
    c.代码示例
        ---
        // Subset断言详解
        package subset

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func TestSubsetBasics(t *testing.T) {
            a := assert.New(t)

            all := []int{1, 2, 3, 4, 5}

            // 子集
            a.Subset(all, []int{2, 3})
            a.Subset(all, []int{1, 5})
            a.Subset(all, []int{1, 2, 3, 4, 5})  // 自身是子集
            a.Subset(all, []int{})                // 空集是子集

            // 不是子集
            a.NotSubset(all, []int{1, 6})  // 6不在all中
            a.NotSubset(all, []int{10})
        }

        func TestSubsetScenarios(t *testing.T) {
            a := assert.New(t)

            // 场景1:权限验证
            allPermissions := []string{"read", "write", "delete", "admin"}
            userPermissions := []string{"read", "write"}
            a.Subset(allPermissions, userPermissions, "用户权限应该是有效权限的子集")

            // 场景2:过滤操作验证
            allItems := []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
            filtered := FilterGreaterThan(allItems, 5)
            a.Subset(allItems, filtered, "过滤结果应该是原集合的子集")

            // 场景3:配置项验证
            validOptions := []string{"debug", "info", "warn", "error"}
            userOptions := []string{"info", "error"}
            a.Subset(validOptions, userOptions, "用户选项应该是有效选项的子集")
        }

        func TestSubsetStrings(t *testing.T) {
            a := assert.New(t)

            allTags := []string{"go", "python", "java", "javascript", "rust"}
            projectTags := []string{"go", "rust"}

            a.Subset(allTags, projectTags)
        }

        func FilterGreaterThan(nums []int, threshold int) []int {
            result := []int{}
            for _, n := range nums {
                if n > threshold {
                    result = append(result, n)
                }
            }
            return result
        }
        ---

3.4 类型断言

01.IsType断言
    a.功能说明
        IsType断言检查值的类型是否与指定类型相同。使用reflect包进行类型检查,支持所有Go类型包括基本类型、结构体、接口、指针等。IsType在测试接口实现、类型转换、反序列化等场景中非常有用。
    b.类型匹配规则
        IsType进行精确的类型匹配,不进行类型转换。int32和int64被认为是不同类型。*User和User被认为是不同类型。interface{}可以匹配任何类型,但IsType检查的是实际存储的类型。
    c.代码示例
        ---
        // IsType断言详解
        package istype

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func TestIsTypeBasics(t *testing.T) {
            a := assert.New(t)

            // 基本类型
            a.IsType(0, 42)                    // int
            a.IsType("", "hello")              // string
            a.IsType(false, true)              // bool
            a.IsType(0.0, 3.14)                // float64
            a.IsType(int32(0), int32(42))      // int32
            a.IsType(int64(0), int64(100))     // int64

            // 不同的整数类型不匹配
            // a.IsType(int32(0), 42)          // 失败:int32 != int
            // a.IsType(int64(0), 42)          // 失败:int64 != int
        }

        func TestIsTypeStructs(t *testing.T) {
            a := assert.New(t)

            type User struct {
                Name string
                Age  int
            }

            user := User{Name: "Alice", Age: 25}

            // 结构体类型
            a.IsType(User{}, user)

            // 结构体指针类型
            a.IsType(&User{}, &user)

            // 结构体和指针是不同类型
            // a.IsType(User{}, &user)         // 失败
        }

        func TestIsTypeSlicesAndMaps(t *testing.T) {
            a := assert.New(t)

            // 切片类型
            a.IsType([]int{}, []int{1, 2, 3})
            a.IsType([]string{}, []string{"a", "b"})

            // map类型
            a.IsType(map[string]int{}, map[string]int{"a": 1})

            // 不同的切片类型不匹配
            // a.IsType([]int{}, []string{})   // 失败
        }

        func TestIsTypeInterfaces(t *testing.T) {
            a := assert.New(t)

            type Reader interface {
                Read(p []byte) (n int, err error)
            }

            var r Reader
            var w io.Writer

            // interface{}类型
            var any interface{} = 42
            a.IsType(0, any)  // 检查实际存储的int类型

            any = "hello"
            a.IsType("", any)  // 检查实际存储的string类型
        }

        func TestIsTypeScenarios(t *testing.T) {
            a := assert.New(t)

            // 场景1:JSON反序列化验证
            var result interface{}
            json.Unmarshal([]byte(`{"name":"Alice"}`), &result)
            a.IsType(map[string]interface{}{}, result)

            // 场景2:工厂函数返回类型
            obj := CreateObject("user")
            a.IsType(&User{}, obj)

            // 场景3:类型转换验证
            var data interface{} = []int{1, 2, 3}
            a.IsType([]int{}, data)

            // 可以安全地进行类型断言
            if slice, ok := data.([]int); ok {
                a.Len(slice, 3)
            }
        }

        type User struct {
            Name string
            Age  int
        }

        func CreateObject(objType string) interface{} {
            switch objType {
            case "user":
                return &User{}
            default:
                return nil
            }
        }
        ---

02.Implements断言
    a.功能说明
        Implements断言检查类型是否实现了指定的接口。这对于验证接口实现、测试多态性、确保API契约等场景非常重要。Implements可以在编译期无法检查接口实现的动态场景中使用。
    b.接口检查语法
        Implements的第一个参数必须是接口类型的nil指针,使用(*InterfaceName)(nil)语法。第二个参数是要检查的值或指针。如果类型实现了接口的所有方法,断言通过。
    c.代码示例
        ---
        // Implements断言详解
        package implements

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "io"
        )

        func TestImplementsBasics(t *testing.T) {
            a := assert.New(t)

            // bytes.Buffer实现了io.Writer接口
            var buf bytes.Buffer
            a.Implements((*io.Writer)(nil), &buf)

            // bytes.Buffer实现了io.Reader接口
            a.Implements((*io.Reader)(nil), &buf)

            // strings.Reader实现了io.Reader接口
            reader := strings.NewReader("hello")
            a.Implements((*io.Reader)(nil), reader)
        }

        func TestImplementsCustomInterface(t *testing.T) {
            a := assert.New(t)

            // 定义接口
            type Validator interface {
                Validate() error
            }

            type Saver interface {
                Save() error
            }

            // 定义实现
            type User struct {
                Name string
            }

            func (u *User) Validate() error {
                if u.Name == "" {
                    return errors.New("name is required")
                }
                return nil
            }

            func (u *User) Save() error {
                // 保存逻辑
                return nil
            }

            user := &User{Name: "Alice"}

            // 验证接口实现
            a.Implements((*Validator)(nil), user)
            a.Implements((*Saver)(nil), user)
        }

        func TestImplementsScenarios(t *testing.T) {
            a := assert.New(t)

            // 场景1:插件系统验证
            plugin := LoadPlugin("user-plugin")
            a.Implements((*Plugin)(nil), plugin, "插件必须实现Plugin接口")

            // 场景2:驱动程序验证
            driver := GetDriver("mysql")
            a.Implements((*Driver)(nil), driver, "驱动必须实现Driver接口")

            // 场景3:中间件验证
            middleware := CreateMiddleware()
            a.Implements((*Middleware)(nil), middleware)
        }

        func TestNotImplements(t *testing.T) {
            a := assert.New(t)

            type Writer interface {
                Write(p []byte) (n int, err error)
            }

            type SimpleStruct struct {
                Value int
            }

            obj := &SimpleStruct{Value: 42}

            // SimpleStruct不实现Writer接口
            a.NotImplements((*Writer)(nil), obj)
        }

        // 辅助接口和类型
        type Plugin interface {
            Init() error
            Execute() error
        }

        type Driver interface {
            Connect() error
            Query(sql string) (interface{}, error)
        }

        type Middleware interface {
            Handle(next func()) error
        }

        type UserPlugin struct{}

        func (p *UserPlugin) Init() error       { return nil }
        func (p *UserPlugin) Execute() error    { return nil }

        func LoadPlugin(name string) Plugin {
            return &UserPlugin{}
        }

        type MySQLDriver struct{}

        func (d *MySQLDriver) Connect() error                            { return nil }
        func (d *MySQLDriver) Query(sql string) (interface{}, error)     { return nil, nil }

        func GetDriver(name string) Driver {
            return &MySQLDriver{}
        }

        type SimpleMiddleware struct{}

        func (m *SimpleMiddleware) Handle(next func()) error { return nil }

        func CreateMiddleware() Middleware {
            return &SimpleMiddleware{}
        }
        ---

03.Kind检查
    a.reflect.Kind
        虽然testify没有直接的Kind断言,但可以结合reflect.Kind进行类型分类检查。Kind表示类型的基础分类如Int、String、Struct、Ptr等。Kind检查适合需要判断类型大类而非精确类型的场景。
    b.Kind使用
        ---
        // Kind检查示例
        package kind

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "reflect"
        )

        func TestKindChecks(t *testing.T) {
            a := assert.New(t)

            // 使用reflect.Kind检查类型分类
            a.Equal(reflect.Int, reflect.TypeOf(42).Kind())
            a.Equal(reflect.String, reflect.TypeOf("hello").Kind())
            a.Equal(reflect.Bool, reflect.TypeOf(true).Kind())
            a.Equal(reflect.Float64, reflect.TypeOf(3.14).Kind())

            // 结构体
            type User struct{ Name string }
            a.Equal(reflect.Struct, reflect.TypeOf(User{}).Kind())

            // 指针
            user := &User{}
            a.Equal(reflect.Ptr, reflect.TypeOf(user).Kind())

            // 切片
            a.Equal(reflect.Slice, reflect.TypeOf([]int{}).Kind())

            // map
            a.Equal(reflect.Map, reflect.TypeOf(map[string]int{}).Kind())
        }

        func TestKindScenarios(t *testing.T) {
            a := assert.New(t)

            // 场景:动态类型检查
            data := GetDynamicData()
            kind := reflect.TypeOf(data).Kind()

            switch kind {
            case reflect.Slice:
                a.True(true, "数据是切片类型")
            case reflect.Map:
                a.True(false, "数据不应该是map类型")
            default:
                a.Fail("未知的数据类型")
            }
        }

        func GetDynamicData() interface{} {
            return []int{1, 2, 3}
        }
        ---

3.5 错误断言

01.Error和NoError断言
    a.功能说明
        Error断言检查错误不为nil,NoError检查错误为nil。这是最基础也是最常用的错误检查方法。在Go语言中,错误处理是显式的,几乎每个可能失败的操作都会返回error,因此错误断言在测试中无处不在。
    b.使用场景
        NoError用于验证操作成功完成,没有产生错误。Error用于验证错误场景,确保函数正确地返回了错误。两者配合使用可以完整测试函数的正常路径和异常路径。
    c.代码示例
        ---
        // Error和NoError断言详解
        package error

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "errors"
            "os"
        )

        func TestNoError(t *testing.T) {
            a := assert.New(t)

            // 成功操作,无错误
            err := DoSomethingSuccess()
            a.NoError(err)

            // 文件操作成功
            file, err := os.Open("testfile.txt")
            if err == nil {
                defer file.Close()
                a.NoError(err)
            }

            // 数据验证成功
            user := &User{Name: "Alice", Age: 25}
            err = ValidateUser(user)
            a.NoError(err, "有效用户不应该产生错误")
        }

        func TestError(t *testing.T) {
            a := assert.New(t)

            // 失败操作,有错误
            err := DoSomethingFail()
            a.Error(err, "应该返回错误")

            // 文件不存在
            _, err = os.Open("nonexistent.txt")
            a.Error(err)

            // 数据验证失败
            invalidUser := &User{Name: "", Age: -1}
            err = ValidateUser(invalidUser)
            a.Error(err, "无效用户应该产生错误")
        }

        func TestErrorScenarios(t *testing.T) {
            a := assert.New(t)

            // 场景1:数据库操作
            db := ConnectDB()
            if db != nil {
                defer db.Close()

                err := db.Insert(&User{Name: "Alice"})
                a.NoError(err, "插入应该成功")

                _, err = db.Query("invalid sql")
                a.Error(err, "无效SQL应该返回错误")
            }

            // 场景2:API调用
            response, err := CallAPI("valid-endpoint")
            a.NoError(err)
            a.NotNil(response)

            _, err = CallAPI("invalid-endpoint")
            a.Error(err)

            // 场景3:文件处理
            err = ProcessFile("valid.txt")
            a.NoError(err)

            err = ProcessFile("invalid.txt")
            a.Error(err)
        }

        type User struct {
            Name string
            Age  int
        }

        func DoSomethingSuccess() error {
            return nil
        }

        func DoSomethingFail() error {
            return errors.New("operation failed")
        }

        func ValidateUser(user *User) error {
            if user.Name == "" {
                return errors.New("name is required")
            }
            if user.Age < 0 {
                return errors.New("age must be positive")
            }
            return nil
        }

        type DB struct{}

        func ConnectDB() *DB           { return &DB{} }
        func (db *DB) Close()           {}
        func (db *DB) Insert(u *User) error { return nil }
        func (db *DB) Query(sql string) (interface{}, error) {
            if sql == "invalid sql" {
                return nil, errors.New("syntax error")
            }
            return nil, nil
        }

        func CallAPI(endpoint string) (interface{}, error) {
            if endpoint == "invalid-endpoint" {
                return nil, errors.New("404 not found")
            }
            return map[string]string{"status": "ok"}, nil
        }

        func ProcessFile(filename string) error {
            if filename == "invalid.txt" {
                return errors.New("file not found")
            }
            return nil
        }
        ---

02.EqualError断言
    a.功能说明
        EqualError断言检查错误消息是否与指定字符串完全相等。这用于精确验证错误消息内容,确保错误信息正确且一致。EqualError比Error更严格,不仅要求有错误,还要求错误消息精确匹配。
    b.使用场景
        EqualError适合测试自定义错误类型,验证错误消息格式,确保API错误响应一致。在测试用户可见的错误消息时特别有用,可以确保错误提示清晰准确。
    c.代码示例
        ---
        // EqualError断言详解
        package equalerror

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "errors"
            "fmt"
        )

        func TestEqualError(t *testing.T) {
            a := assert.New(t)

            // 精确匹配错误消息
            err := errors.New("file not found")
            a.EqualError(err, "file not found")

            // 格式化错误消息
            filename := "test.txt"
            err2 := fmt.Errorf("failed to open %s", filename)
            a.EqualError(err2, "failed to open test.txt")
        }

        func TestEqualErrorValidation(t *testing.T) {
            a := assert.New(t)

            // 验证错误消息
            err := ValidateEmail("invalid")
            a.EqualError(err, "invalid email format")

            err = ValidateAge(-1)
            a.EqualError(err, "age must be between 0 and 150")

            err = ValidatePassword("123")
            a.EqualError(err, "password must be at least 8 characters")
        }

        func TestEqualErrorCustomTypes(t *testing.T) {
            a := assert.New(t)

            // 自定义错误类型
            type ValidationError struct {
                Field   string
                Message string
            }

            func (e *ValidationError) Error() string {
                return fmt.Sprintf("%s: %s", e.Field, e.Message)
            }

            err := &ValidationError{
                Field:   "email",
                Message: "invalid format",
            }

            a.EqualError(err, "email: invalid format")
        }

        func ValidateEmail(email string) error {
            if !strings.Contains(email, "@") {
                return errors.New("invalid email format")
            }
            return nil
        }

        func ValidateAge(age int) error {
            if age < 0 || age > 150 {
                return errors.New("age must be between 0 and 150")
            }
            return nil
        }

        func ValidatePassword(password string) error {
            if len(password) < 8 {
                return errors.New("password must be at least 8 characters")
            }
            return nil
        }
        ---

03.ErrorIs和ErrorAs断言
    a.Go 1.13错误链
        Go 1.13引入了错误包装机制,使用fmt.Errorf的%w动词可以包装错误,形成错误链。ErrorIs检查错误链中是否包含特定错误,ErrorAs检查错误链中是否有可以转换为特定类型的错误。
    b.错误链场景
        错误包装用于添加上下文信息而不丢失原始错误。ErrorIs适合检查是否是特定的标准错误如io.EOF、os.ErrNotExist。ErrorAs适合提取自定义错误类型并访问其字段。
    c.代码示例
        ---
        // ErrorIs和ErrorAs断言详解
        package errorchain

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "errors"
            "fmt"
            "os"
        )

        func TestErrorIs(t *testing.T) {
            a := assert.New(t)

            // 定义标准错误
            var ErrNotFound = errors.New("not found")
            var ErrPermission = errors.New("permission denied")

            // 包装错误
            err := fmt.Errorf("failed to get user: %w", ErrNotFound)

            // ErrorIs检查错误链
            a.ErrorIs(err, ErrNotFound)
            a.NotErrorIs(err, ErrPermission)

            // 多层包装
            wrappedTwice := fmt.Errorf("operation failed: %w", err)
            a.ErrorIs(wrappedTwice, ErrNotFound)  // 仍然能检测到
        }

        func TestErrorIsStandard(t *testing.T) {
            a := assert.New(t)

            // 标准库错误
            _, err := os.Open("nonexistent.txt")
            a.ErrorIs(err, os.ErrNotExist)

            // 包装标准错误
            wrappedErr := fmt.Errorf("failed to read config: %w", err)
            a.ErrorIs(wrappedErr, os.ErrNotExist)
        }

        func TestErrorAs(t *testing.T) {
            a := assert.New(t)

            // 自定义错误类型
            type ValidationError struct {
                Field   string
                Message string
                Code    int
            }

            func (e *ValidationError) Error() string {
                return fmt.Sprintf("[%d] %s: %s", e.Code, e.Field, e.Message)
            }

            // 创建并包装自定义错误
            valErr := &ValidationError{
                Field:   "email",
                Message: "invalid format",
                Code:    400,
            }

            wrappedErr := fmt.Errorf("validation failed: %w", valErr)

            // ErrorAs提取自定义错误
            var target *ValidationError
            a.ErrorAs(wrappedErr, &target)

            // 访问自定义错误的字段
            a.Equal("email", target.Field)
            a.Equal("invalid format", target.Message)
            a.Equal(400, target.Code)
        }

        func TestErrorChainScenarios(t *testing.T) {
            a := assert.New(t)

            // 场景1:数据库错误链
            var ErrDBConnection = errors.New("database connection failed")

            err := ConnectDatabase()
            a.ErrorIs(err, ErrDBConnection)

            // 场景2:多层业务错误
            err2 := ProcessOrder(123)
            if err2 != nil {
                var paymentErr *PaymentError
                if a.ErrorAs(err2, &paymentErr) {
                    a.Equal("insufficient funds", paymentErr.Reason)
                }
            }
        }

        var ErrDBConnection = errors.New("database connection failed")

        func ConnectDatabase() error {
            return fmt.Errorf("failed to initialize: %w", ErrDBConnection)
        }

        type PaymentError struct {
            Reason string
            Amount float64
        }

        func (e *PaymentError) Error() string {
            return fmt.Sprintf("payment failed: %s (amount: %.2f)", e.Reason, e.Amount)
        }

        func ProcessOrder(orderID int) error {
            payErr := &PaymentError{
                Reason: "insufficient funds",
                Amount: 99.99,
            }
            return fmt.Errorf("order %d: %w", orderID, payErr)
        }
        ---

04.ErrorContains断言
    a.功能说明
        ErrorContains断言检查错误消息是否包含指定的子字符串。相比EqualError的精确匹配,ErrorContains更灵活,只需要错误消息包含关键词即可。适合测试错误消息的关键信息而不关心完整格式。
    b.使用场景
        ErrorContains适合测试动态错误消息,验证错误消息包含关键信息,测试第三方库返回的错误。当错误消息格式可能变化但关键词保持不变时,使用ErrorContains比EqualError更稳定。
    c.代码示例
        ---
        // ErrorContains断言详解
        package errorcontains

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "fmt"
            "errors"
        )

        func TestErrorContains(t *testing.T) {
            a := assert.New(t)

            // 检查错误消息包含关键词
            err := errors.New("failed to connect to database: connection timeout")
            a.ErrorContains(err, "database")
            a.ErrorContains(err, "timeout")
            a.ErrorContains(err, "connect")

            // 动态错误消息
            filename := "config.json"
            err2 := fmt.Errorf("failed to read file %s: permission denied", filename)
            a.ErrorContains(err2, filename)
            a.ErrorContains(err2, "permission")
        }

        func TestErrorContainsScenarios(t *testing.T) {
            a := assert.New(t)

            // 场景1:API错误
            err := CallExternalAPI()
            if err != nil {
                a.ErrorContains(err, "API")
                a.ErrorContains(err, "timeout")
            }

            // 场景2:验证错误
            err = ValidateForm(map[string]string{})
            a.ErrorContains(err, "required")

            // 场景3:数据库错误
            err = QueryDatabase("invalid sql")
            a.ErrorContains(err, "syntax")
        }

        func CallExternalAPI() error {
            return fmt.Errorf("API call failed: request timeout after 30s")
        }

        func ValidateForm(form map[string]string) error {
            if form["name"] == "" {
                return errors.New("name field is required")
            }
            return nil
        }

        func QueryDatabase(sql string) error {
            return errors.New("SQL syntax error: unexpected token")
        }
        ---

01.Panics和NotPanics断言 a.功能说明 Panics断言检查函数执行时是否发生panic,NotPanics检查函数不会panic。在Go语言中,panic用于表示不可恢复的错误,测试panic行为确保程序在异常情况下的正确性。testify提供安全的方式来测试panic,避免测试进程崩溃。 b.Panic测试原理 Panics和NotPanics通过defer recover机制捕获panic。测试代码将待测函数包装在匿名函数中执行,通过recover捕获panic并验证。这使得panic测试安全可控,不会导致测试中断。 c.代码示例 ``` // Panics和NotPanics断言详解 package panic

    import (
        "testing"
        "github.com/stretchr/testify/assert"
    )

    func TestPanicsBasics(t *testing.T) {
        a := assert.New(t)

        // 测试会panic的函数
        a.Panics(func() {
            panic("something went wrong")
        })

        // 测试不会panic的函数
        a.NotPanics(func() {
            _ = 1 + 1
        })

        // 除零会panic
        a.Panics(func() {
            x := 0
            _ = 10 / x
        })

        // 访问nil指针会panic
        a.Panics(func() {
            var ptr *int
            _ = *ptr
        })

        // 访问越界会panic
        a.Panics(func() {
            arr := []int{1, 2, 3}
            _ = arr[10]
        })
    }

    func TestPanicsScenarios(t *testing.T) {
        a := assert.New(t)

        // 场景1:参数验证导致panic
        a.Panics(func() {
            MustValidate(nil)
        }, "nil参数应该panic")

        // 场景2:初始化失败导致panic
        a.Panics(func() {
            InitializeWithInvalidConfig()
        })

        // 场景3:资源不可用导致panic
        a.Panics(func() {
            MustConnect("invalid-host")
        })
    }

    func TestNotPanicsScenarios(t *testing.T) {
        a := assert.New(t)

        // 场景1:正常参数不应panic
        a.NotPanics(func() {
            MustValidate(&User{Name: "Alice"})
        })

        // 场景2:有效配置不应panic
        a.NotPanics(func() {
            InitializeWithValidConfig()
        })

        // 场景3:正常操作不应panic
        a.NotPanics(func() {
            result := SafeOperation()
            _ = result
        })
    }

    func TestPanicRecovery(t *testing.T) {
        a := assert.New(t)

        // 测试panic恢复机制
        a.Panics(func() {
            defer func() {
                if r := recover(); r != nil {
                    // 恢复但重新panic以便测试捕获
                    panic(r)
                }
            }()
            panic("test panic")
        })
    }

    type User struct {
        Name string
    }

    func MustValidate(user *User) {
        if user == nil {
            panic("user cannot be nil")
        }
        if user.Name == "" {
            panic("name is required")
        }
    }

    func InitializeWithInvalidConfig() {
        panic("invalid configuration")
    }

    func InitializeWithValidConfig() {
        // 正常初始化
    }

    func MustConnect(host string) {
        if host == "invalid-host" {
            panic("failed to connect")
        }
    }

    func SafeOperation() int {
        return 42
    }
    ```

02.PanicValue断言 a.功能说明 PanicsWithValue断言不仅检查函数是否panic,还检查panic的值是否与指定值相等。PanicsWithError检查panic的值是否是error类型且消息匹配。这些方法用于精确验证panic的内容。 b.Panic值类型 Go语言的panic可以传递任何类型的值,常见的有string、error、自定义类型等。PanicsWithValue进行精确匹配,PanicsWithError专门处理error类型的panic。 c.代码示例 ``` // Panic值断言详解 package panicvalue

    import (
        "testing"
        "github.com/stretchr/testify/assert"
        "errors"
    )

    func TestPanicsWithValue(t *testing.T) {
        a := assert.New(t)

        // 字符串panic值
        a.PanicsWithValue("expected panic", func() {
            panic("expected panic")
        })

        // 整数panic值
        a.PanicsWithValue(42, func() {
            panic(42)
        })

        // 结构体panic值
        type PanicData struct {
            Code    int
            Message string
        }

        expected := PanicData{Code: 500, Message: "server error"}
        a.PanicsWithValue(expected, func() {
            panic(expected)
        })
    }

    func TestPanicsWithError(t *testing.T) {
        a := assert.New(t)

        // error类型的panic
        expectedErr := errors.New("critical error")
        a.PanicsWithError(expectedErr, func() {
            panic(expectedErr)
        })

        // 自定义error类型
        type CustomError struct {
            Code int
            Msg  string
        }

        func (e *CustomError) Error() string {
            return e.Msg
        }

        customErr := &CustomError{Code: 404, Msg: "not found"}
        a.PanicsWithError(customErr, func() {
            panic(customErr)
        })
    }

    func TestPanicValueScenarios(t *testing.T) {
        a := assert.New(t)

        // 场景1:断言失败panic
        a.PanicsWithValue("assertion failed: x must be positive", func() {
            Assert(false, "x must be positive")
        })

        // 场景2:配置错误panic
        a.PanicsWithError(errors.New("invalid config"), func() {
            LoadConfig("invalid.yaml")
        })

        // 场景3:资源耗尽panic
        type ResourceError struct {
            Resource string
            Limit    int
        }

        expected := ResourceError{Resource: "memory", Limit: 1024}
        a.PanicsWithValue(expected, func() {
            AllocateResources(2048)
        })
    }

    func Assert(condition bool, message string) {
        if !condition {
            panic("assertion failed: " + message)
        }
    }

    func LoadConfig(filename string) {
        if filename == "invalid.yaml" {
            panic(errors.New("invalid config"))
        }
    }

    type ResourceError struct {
        Resource string
        Limit    int
    }

    func AllocateResources(size int) {
        if size > 1024 {
            panic(ResourceError{Resource: "memory", Limit: 1024})
        }
    }
    ```

03.安全panic测试 a.测试隔离 panic测试需要确保测试隔离,一个测试的panic不应该影响其他测试。testify的Panics断言通过recover机制实现隔离,每个panic测试在独立的goroutine中执行。 b.最佳实践 测试panic时应该明确panic的触发条件,验证panic消息或值的准确性,确保只在必要时使用panic。对于可恢复的错误应该使用error返回,只有真正不可恢复的情况才使用panic。 c.代码示例 ``` // 安全panic测试最佳实践 package safepanic

    import (
        "testing"
        "github.com/stretchr/testify/assert"
        "errors"
    )

    func TestSafePanicTesting(t *testing.T) {
        a := assert.New(t)

        // 测试1:验证panic条件
        a.Panics(func() {
            ValidatePositive(-1)
        }, "负数应该panic")

        a.NotPanics(func() {
            ValidatePositive(1)
        }, "正数不应该panic")

        // 测试2:验证panic消息
        a.PanicsWithValue("value must be positive", func() {
            ValidatePositive(-1)
        })

        // 测试3:测试后程序继续运行
        a.Equal(42, 42, "测试在panic测试后继续")
    }

    func TestMultiplePanicTests(t *testing.T) {
        a := assert.New(t)

        // 多个panic测试互不影响
        a.Panics(func() { panic("test 1") })
        a.Panics(func() { panic("test 2") })
        a.Panics(func() { panic("test 3") })

        // 后续测试正常执行
        a.Equal(1+1, 2)
    }

    func TestPanicVsError(t *testing.T) {
        a := assert.New(t)

        // 推荐:可恢复错误使用error
        err := DoSomethingRecoverable()
        a.Error(err)

        // 只有不可恢复的情况才panic
        a.Panics(func() {
            DoSomethingUnrecoverable()
        })
    }

    func ValidatePositive(value int) {
        if value <= 0 {
            panic("value must be positive")
        }
    }

    func DoSomethingRecoverable() error {
        // 可恢复的错误返回error
        return errors.New("recoverable error")
    }

    func DoSomethingUnrecoverable() {
        // 不可恢复的错误使用panic
        panic("unrecoverable error")
    }
    ```

04.Panic测试模式 a.Must函数测试 Go语言中的Must函数模式在初始化失败时panic。测试Must函数需要验证正常情况不panic,异常情况正确panic。Must函数通常用于程序启动阶段的配置验证。 b.不变量断言 使用panic实现不变量断言,在违反程序不变量时panic。测试这类断言需要构造违反不变量的场景,验证panic被正确触发。 c.代码示例 ``` // Panic测试模式 package panicpattern

    import (
        "testing"
        "github.com/stretchr/testify/assert"
        "regexp"
    )

    // Must函数模式
    func MustCompile(pattern string) *regexp.Regexp {
        r, err := regexp.Compile(pattern)
        if err != nil {
            panic(err)
        }
        return r
    }

    func TestMustFunctions(t *testing.T) {
        a := assert.New(t)

        // 有效正则表达式不应panic
        a.NotPanics(func() {
            r := MustCompile(`^\d+$`)
            _ = r
        })

        // 无效正则表达式应该panic
        a.Panics(func() {
            _ = MustCompile(`[invalid`)
        })
    }

    // 不变量断言模式
    type Stack struct {
        items []int
        size  int
    }

    func (s *Stack) Push(item int) {
        s.items = append(s.items, item)
        s.size++
        s.assertInvariant()
    }

    func (s *Stack) Pop() int {
        if s.size == 0 {
            panic("pop from empty stack")
        }
        item := s.items[s.size-1]
        s.items = s.items[:s.size-1]
        s.size--
        s.assertInvariant()
        return item
    }

    func (s *Stack) assertInvariant() {
        if len(s.items) != s.size {
            panic("invariant violated: size mismatch")
        }
    }

    func TestInvariantAssertions(t *testing.T) {
        a := assert.New(t)

        // 正常操作不应违反不变量
        a.NotPanics(func() {
            s := &Stack{}
            s.Push(1)
            s.Push(2)
            _ = s.Pop()
        })

        // 从空栈pop应该panic
        a.Panics(func() {
            s := &Stack{}
            s.Pop()
        })
    }
    ```

3.7 自定义断言

01.Condition断言
    a.功能说明
        Condition断言接受一个返回bool的函数,用于执行自定义的复杂条件检查。当testify提供的标准断言不能满足需求时,Condition提供了灵活的扩展方式。Condition让你可以编写任意复杂的验证逻辑,同时保持测试代码的可读性。
    b.使用场景
        Condition适用于需要多个条件组合判断的场景,复杂的业务规则验证,需要访问多个对象属性的检查,以及标准断言无法表达的自定义逻辑。
    c.代码示例
        ---
        // Condition断言详解
        package condition

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func TestConditionBasics(t *testing.T) {
            a := assert.New(t)

            // 简单条件
            a.Condition(func() bool {
                return 5 > 3
            }, "5应该大于3")

            // 复杂条件
            a.Condition(func() bool {
                x := 10
                y := 20
                return x+y == 30 && x < y
            }, "复杂条件应该满足")
        }

        func TestConditionWithObjects(t *testing.T) {
            a := assert.New(t)

            user := User{
                Name:  "Alice",
                Age:   25,
                Email: "alice@example.com",
            }

            // 验证多个字段
            a.Condition(func() bool {
                return len(user.Name) > 0 &&
                       user.Age >= 18 &&
                       strings.Contains(user.Email, "@")
            }, "用户信息应该完整且有效")
        }

        func TestConditionBusinessRules(t *testing.T) {
            a := assert.New(t)

            order := Order{
                Items:    []OrderItem{{Price: 100}, {Price: 50}},
                Discount: 10,
                Tax:      15,
            }

            // 复杂业务规则验证
            a.Condition(func() bool {
                subtotal := 0.0
                for _, item := range order.Items {
                    subtotal += item.Price
                }
                total := subtotal - order.Discount + order.Tax
                return total == 155.0
            }, "订单总额计算应该正确")
        }

        func TestConditionCollections(t *testing.T) {
            a := assert.New(t)

            numbers := []int{1, 2, 3, 4, 5}

            // 集合条件
            a.Condition(func() bool {
                // 所有元素都是正数
                for _, n := range numbers {
                    if n <= 0 {
                        return false
                    }
                }
                return true
            }, "所有数字应该是正数")

            // 集合统计条件
            a.Condition(func() bool {
                sum := 0
                for _, n := range numbers {
                    sum += n
                }
                return sum == 15
            }, "数字总和应该是15")
        }

        type User struct {
            Name  string
            Age   int
            Email string
        }

        type Order struct {
            Items    []OrderItem
            Discount float64
            Tax      float64
        }

        type OrderItem struct {
            Price float64
        }
        ---

02.自定义断言函数
    a.封装重复逻辑
        当某个断言逻辑需要在多个测试中重复使用时,可以将其封装为自定义断言函数。自定义断言函数接受testing.T和被测值作为参数,内部使用testify断言,提供清晰的错误信息。
    b.领域特定断言
        为特定领域创建专用的断言函数,如验证HTTP响应、数据库记录、配置对象等。领域特定断言让测试代码更加语义化,减少重复,提高可维护性。
    c.代码示例
        ---
        // 自定义断言函数
        package customassert

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "net/http"
        )

        // 自定义断言:验证用户有效性
        func AssertValidUser(t *testing.T, user *User) {
            t.Helper()
            a := assert.New(t)

            a.NotNil(user, "用户不能为nil")
            a.NotEmpty(user.Name, "用户名不能为空")
            a.Greater(user.Age, 0, "年龄必须大于0")
            a.Contains(user.Email, "@", "邮箱格式应该有效")
        }

        // 自定义断言:验证HTTP响应
        func AssertHTTPSuccess(t *testing.T, resp *http.Response) {
            t.Helper()
            a := assert.New(t)

            a.NotNil(resp)
            a.Equal(http.StatusOK, resp.StatusCode, "应该返回200")
            a.Contains(resp.Header.Get("Content-Type"), "application/json")
        }

        // 自定义断言:验证列表非空且有序
        func AssertSortedNonEmpty(t *testing.T, numbers []int) {
            t.Helper()
            a := assert.New(t)

            a.NotEmpty(numbers, "列表不应该为空")

            for i := 1; i < len(numbers); i++ {
                a.LessOrEqual(numbers[i-1], numbers[i],
                    "列表应该是有序的:索引%d的值(%d)应该<=索引%d的值(%d)",
                    i-1, numbers[i-1], i, numbers[i])
            }
        }

        // 使用自定义断言
        func TestCustomAssertions(t *testing.T) {
            // 使用自定义用户断言
            user := &User{
                Name:  "Alice",
                Age:   25,
                Email: "alice@example.com",
            }
            AssertValidUser(t, user)

            // 使用自定义排序断言
            numbers := []int{1, 3, 5, 7, 9}
            AssertSortedNonEmpty(t, numbers)
        }

        // 自定义断言:验证订单
        func AssertValidOrder(t *testing.T, order *Order) {
            t.Helper()
            a := assert.New(t)

            a.NotNil(order)
            a.NotEmpty(order.Items, "订单必须包含商品")
            a.Positive(order.TotalAmount, "订单总额必须为正")
            a.NotEmpty(order.CustomerID, "必须指定客户")

            // 验证每个商品
            for i, item := range order.Items {
                a.Positive(item.Quantity, "商品%d数量必须为正", i)
                a.Positive(item.Price, "商品%d价格必须为正", i)
            }
        }

        type User struct {
            Name  string
            Age   int
            Email string
        }

        type Order struct {
            CustomerID  string
            Items       []OrderItem
            TotalAmount float64
        }

        type OrderItem struct {
            Quantity int
            Price    float64
        }
        ---

03.断言辅助函数
    a.复杂条件封装
        将复杂的条件判断逻辑封装为辅助函数,返回bool和错误描述。辅助函数可以在Condition断言中使用,也可以在自定义断言函数中使用。清晰的辅助函数让测试逻辑更易理解和维护。
    b.可重用验证器
        创建可重用的验证器函数,接受值并返回验证结果。验证器可以组合使用,形成复杂的验证链。这种模式在测试数据验证、配置检查等场景中特别有用。
    c.代码示例
        ---
        // 断言辅助函数
        package helper

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "strings"
        )

        // 辅助函数:验证邮箱格式
        func isValidEmail(email string) (bool, string) {
            if !strings.Contains(email, "@") {
                return false, "邮箱必须包含@"
            }
            if !strings.Contains(email, ".") {
                return false, "邮箱必须包含域名"
            }
            parts := strings.Split(email, "@")
            if len(parts[0]) == 0 {
                return false, "邮箱用户名不能为空"
            }
            return true, ""
        }

        // 辅助函数:验证密码强度
        func isStrongPassword(password string) (bool, string) {
            if len(password) < 8 {
                return false, "密码长度至少8位"
            }

            hasUpper := false
            hasLower := false
            hasDigit := false

            for _, c := range password {
                if c >= 'A' && c <= 'Z' {
                    hasUpper = true
                } else if c >= 'a' && c <= 'z' {
                    hasLower = true
                } else if c >= '0' && c <= '9' {
                    hasDigit = true
                }
            }

            if !hasUpper {
                return false, "密码必须包含大写字母"
            }
            if !hasLower {
                return false, "密码必须包含小写字母"
            }
            if !hasDigit {
                return false, "密码必须包含数字"
            }

            return true, ""
        }

        // 使用辅助函数的自定义断言
        func AssertValidEmail(t *testing.T, email string) {
            t.Helper()
            valid, reason := isValidEmail(email)
            assert.True(t, valid, reason)
        }

        func AssertStrongPassword(t *testing.T, password string) {
            t.Helper()
            valid, reason := isStrongPassword(password)
            assert.True(t, valid, reason)
        }

        // 测试使用
        func TestValidationHelpers(t *testing.T) {
            // 有效邮箱
            AssertValidEmail(t, "user@example.com")

            // 强密码
            AssertStrongPassword(t, "MyP@ssw0rd")
        }

        // 组合验证器
        type Validator func(value interface{}) (bool, string)

        func CombineValidators(validators ...Validator) Validator {
            return func(value interface{}) (bool, string) {
                for _, validator := range validators {
                    if valid, reason := validator(value); !valid {
                        return false, reason
                    }
                }
                return true, ""
            }
        }

        // 使用组合验证器
        func TestCombinedValidators(t *testing.T) {
            a := assert.New(t)

            notEmpty := func(value interface{}) (bool, string) {
                str, ok := value.(string)
                if !ok || str == "" {
                    return false, "值不能为空"
                }
                return true, ""
            }

            minLength := func(min int) Validator {
                return func(value interface{}) (bool, string) {
                    str, ok := value.(string)
                    if !ok || len(str) < min {
                        return false, fmt.Sprintf("长度至少%d", min)
                    }
                    return true, ""
                }
            }

            // 组合多个验证器
            validator := CombineValidators(notEmpty, minLength(3))

            valid, reason := validator("hello")
            a.True(valid, reason)

            valid, reason = validator("hi")
            a.False(valid)
            a.Equal("长度至少3", reason)
        }
        ---

04.断言扩展模式
    a.流畅接口模式
        创建流畅接口风格的断言扩展,支持链式调用。流畅接口让断言代码读起来更像自然语言,提高可读性。这种模式适合创建领域特定的断言库。
    b.断言构建器
        使用构建器模式创建复杂的断言。构建器积累多个断言条件,最后统一执行验证。这种模式适合需要组合多个条件的复杂验证场景。
    c.代码示例
        ---
        // 断言扩展模式
        package extension

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        // 流畅接口断言
        type UserAssertion struct {
            t    *testing.T
            user *User
        }

        func AssertUser(t *testing.T, user *User) *UserAssertion {
            return &UserAssertion{t: t, user: user}
        }

        func (ua *UserAssertion) IsNotNil() *UserAssertion {
            ua.t.Helper()
            assert.NotNil(ua.t, ua.user)
            return ua
        }

        func (ua *UserAssertion) HasName(name string) *UserAssertion {
            ua.t.Helper()
            assert.Equal(ua.t, name, ua.user.Name)
            return ua
        }

        func (ua *UserAssertion) HasAge(age int) *UserAssertion {
            ua.t.Helper()
            assert.Equal(ua.t, age, ua.user.Age)
            return ua
        }

        func (ua *UserAssertion) IsAdult() *UserAssertion {
            ua.t.Helper()
            assert.GreaterOrEqual(ua.t, ua.user.Age, 18)
            return ua
        }

        // 使用流畅接口
        func TestFluentAssertions(t *testing.T) {
            user := &User{Name: "Alice", Age: 25, Email: "alice@example.com"}

            // 链式断言
            AssertUser(t, user).
                IsNotNil().
                HasName("Alice").
                HasAge(25).
                IsAdult()
        }

        // 断言构建器
        type AssertionBuilder struct {
            t          *testing.T
            conditions []func() bool
            messages   []string
        }

        func NewAssertionBuilder(t *testing.T) *AssertionBuilder {
            return &AssertionBuilder{t: t}
        }

        func (ab *AssertionBuilder) Add(condition func() bool, message string) *AssertionBuilder {
            ab.conditions = append(ab.conditions, condition)
            ab.messages = append(ab.messages, message)
            return ab
        }

        func (ab *AssertionBuilder) Assert() {
            ab.t.Helper()
            for i, condition := range ab.conditions {
                assert.True(ab.t, condition(), ab.messages[i])
            }
        }

        // 使用断言构建器
        func TestAssertionBuilder(t *testing.T) {
            user := &User{Name: "Alice", Age: 25, Email: "alice@example.com"}

            NewAssertionBuilder(t).
                Add(func() bool { return user.Name != "" }, "用户名不能为空").
                Add(func() bool { return user.Age >= 18 }, "必须是成年人").
                Add(func() bool { return strings.Contains(user.Email, "@") }, "邮箱格式有效").
                Assert()
        }

        type User struct {
            Name  string
            Age   int
            Email string
        }
        ---

3.8 断言消息格式化

01.自定义错误消息
    a.消息参数
        testify的所有断言方法都支持可选的消息参数,用于在断言失败时提供额外的上下文信息。消息参数可以是简单字符串,也可以是格式化字符串配合多个参数,类似fmt.Printf的用法。清晰的错误消息能大幅提高测试失败时的诊断效率。
    b.消息格式化语法
        消息参数使用fmt包的格式化语法。第一个消息参数是格式字符串,后续参数是要插入的值。支持%s字符串、%d整数、%v通用格式、%+v详细格式等格式化动词。
    c.代码示例
        ---
        // 断言消息格式化详解
        package message

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func TestSimpleMessages(t *testing.T) {
            a := assert.New(t)

            // 简单字符串消息
            a.Equal(5, Add(2, 3), "加法运算应该正确")

            // 无消息(使用默认错误信息)
            a.NotNil(GetUser(1))

            // 空字符串消息
            a.True(IsValid(), "")
        }

        func TestFormattedMessages(t *testing.T) {
            a := assert.New(t)

            // 格式化消息:%s - 字符串
            username := "Alice"
            a.NotEmpty(username, "用户名%s不能为空", username)

            // 格式化消息:%d - 整数
            age := 25
            a.GreaterOrEqual(age, 18, "年龄%d必须大于等于18", age)

            // 格式化消息:%v - 通用格式
            user := User{Name: "Alice", Age: 25}
            a.NotNil(user, "用户对象%v不能为nil", user)

            // 格式化消息:%+v - 详细格式(包含字段名)
            a.Equal("Alice", user.Name, "用户对象%+v的名称不匹配", user)

            // 格式化消息:%T - 类型
            var data interface{} = "hello"
            a.IsType("", data, "期望类型string但得到%T", data)
        }

        func TestMultipleParameters(t *testing.T) {
            a := assert.New(t)

            // 多个参数
            x, y := 10, 20
            a.Less(x, y, "期望%d < %d但实际不是", x, y)

            // 复杂消息
            order := Order{ID: 123, Total: 99.99}
            expected := 99.99
            a.Equal(expected, order.Total,
                "订单ID=%d的总额应该是%.2f,但实际是%.2f",
                order.ID, expected, order.Total)
        }

        func TestContextualMessages(t *testing.T) {
            a := assert.New(t)

            // 场景1:循环中的断言
            numbers := []int{2, 4, 6, 8, 10}
            for i, n := range numbers {
                a.Equal(0, n%2, "索引%d的元素%d应该是偶数", i, n)
            }

            // 场景2:测试数据上下文
            testCases := []struct {
                input    int
                expected int
            }{
                {1, 2},
                {2, 4},
                {3, 6},
            }

            for _, tc := range testCases {
                result := Double(tc.input)
                a.Equal(tc.expected, result,
                    "Double(%d)应该返回%d,但得到%d",
                    tc.input, tc.expected, result)
            }
        }

        type User struct {
            Name string
            Age  int
        }

        type Order struct {
            ID    int
            Total float64
        }

        func Add(a, b int) int { return a + b }
        func GetUser(id int) *User { return &User{Name: "Alice"} }
        func IsValid() bool { return true }
        func Double(n int) int { return n * 2 }
        ---

02.错误消息最佳实践
    a.消息编写原则
        错误消息应该清晰说明期望是什么,实际得到了什么,以及为什么这是错误的。包含足够的上下文信息帮助快速定位问题。使用主动语态,避免模糊的描述。消息应该面向开发者,使用技术术语。
    b.消息内容指导
        好的消息包含操作上下文、输入参数、期望结果、实际结果。避免冗余信息,testify已经显示了期望值和实际值。重点说明业务含义而不是重复断言本身的内容。
    c.代码示例
        ---
        // 错误消息最佳实践
        package bestpractice

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func TestGoodMessages(t *testing.T) {
            a := assert.New(t)

            // ✅ 好的消息:说明业务含义
            age := 15
            a.GreaterOrEqual(age, 18, "用户必须是成年人才能注册")

            // ✅ 好的消息:包含上下文
            userID := 123
            user := GetUser(userID)
            a.NotNil(user, "数据库应该包含ID为%d的用户", userID)

            // ✅ 好的消息:说明影响
            balance := -100.0
            a.GreaterOrEqual(balance, 0.0, "余额不足,无法完成交易")

            // ✅ 好的消息:指出问题
            config := LoadConfig()
            a.NotEmpty(config.DatabaseURL, "配置文件缺少必需的database_url字段")
        }

        func TestBadMessages(t *testing.T) {
            a := assert.New(t)

            // ❌ 差的消息:过于简单
            age := 15
            // a.GreaterOrEqual(age, 18, "错误")

            // ❌ 差的消息:重复断言内容
            // a.Equal(5, result, "result应该等于5")

            // ❌ 差的消息:没有上下文
            // a.NotNil(user, "不能为nil")

            // ❌ 差的消息:信息不足
            // a.True(valid, "验证失败")

            // 改进:提供具体信息
            a.True(valid, "邮箱格式验证失败:必须包含@符号")
        }

        func TestMessagePatterns(t *testing.T) {
            a := assert.New(t)

            // 模式1:说明前置条件
            db := ConnectDB()
            a.NotNil(db, "数据库连接必须在测试前建立")

            // 模式2:说明期望行为
            orders := GetOrders(userID)
            a.NotEmpty(orders, "活跃用户应该至少有一个订单")

            // 模式3:说明数据要求
            email := user.Email
            a.Contains(email, "@", "用户邮箱必须是有效的邮箱地址")

            // 模式4:说明业务规则
            discount := CalculateDiscount(order)
            a.LessOrEqual(discount, 100.0, "折扣不能超过订单总额")
        }

        type User struct{ Email string }
        type Order struct{}
        type Config struct{ DatabaseURL string }

        var userID = 123
        var valid = true

        func GetUser(id int) *User { return &User{} }
        func LoadConfig() Config { return Config{} }
        func ConnectDB() interface{} { return &struct{}{} }
        func GetOrders(userID int) []Order { return []Order{} }
        func CalculateDiscount(order Order) float64 { return 10.0 }
        ---

03.国际化考虑
    a.语言选择
        错误消息应该使用团队的工作语言。中文团队使用中文消息,英文团队使用英文消息。保持一致性,不要混用多种语言。技术术语可以使用英文,但说明性文字使用工作语言。
    b.消息模板
        为常见的断言场景创建消息模板,确保消息风格统一。模板可以包含占位符,使用时填入具体值。这有助于保持团队代码风格的一致性。
    c.代码示例
        ---
        // 国际化和消息模板
        package i18n

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        // 消息模板常量
        const (
            MsgUserNotFound      = "未找到ID为%d的用户"
            MsgInvalidAge        = "年龄%d无效,必须在%d到%d之间"
            MsgDatabaseError     = "数据库操作失败:%s"
            MsgConfigMissing     = "配置项%s缺失或为空"
            MsgPermissionDenied  = "用户%s没有%s权限"
        )

        func TestWithMessageTemplates(t *testing.T) {
            a := assert.New(t)

            // 使用模板
            userID := 999
            user := FindUser(userID)
            a.NotNil(user, MsgUserNotFound, userID)

            // 使用模板验证范围
            age := 200
            a.True(age >= 0 && age <= 150, MsgInvalidAge, age, 0, 150)

            // 使用模板说明权限
            username := "guest"
            permission := "admin"
            hasPermission := CheckPermission(username, permission)
            a.True(hasPermission, MsgPermissionDenied, username, permission)
        }

        // 中文消息示例
        func Test中文消息(t *testing.T) {
            a := assert.New(t)

            用户名 := "张三"
            年龄 := 25

            a.NotEmpty(用户名, "用户名不能为空")
            a.GreaterOrEqual(年龄, 18, "用户%s的年龄%d必须大于等于18", 用户名, 年龄)
        }

        // 英文消息示例
        func TestEnglishMessages(t *testing.T) {
            a := assert.New(t)

            username := "Alice"
            age := 25

            a.NotEmpty(username, "username cannot be empty")
            a.GreaterOrEqual(age, 18, "user %s age %d must be at least 18", username, age)
        }

        func FindUser(id int) *User {
            if id == 999 {
                return nil
            }
            return &User{}
        }

        func CheckPermission(user, perm string) bool {
            return user != "guest" || perm != "admin"
        }
        ---

04.调试友好的消息
    a.包含诊断信息
        在错误消息中包含有助于调试的信息,如当前状态、相关变量值、执行路径。帮助开发者快速理解失败原因,减少调试时间。特别是在CI环境中,详细的错误消息至关重要。
    b.分层次的信息
        简单场景使用简短消息,复杂场景使用详细消息。对于嵌套对象,考虑使用%+v显示完整结构。对于集合,可以显示前几个元素作为样本。
    c.代码示例
        ---
        // 调试友好的消息
        package debug

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func TestDebugFriendlyMessages(t *testing.T) {
            a := assert.New(t)

            // 场景1:显示相关状态
            order := Order{
                ID:     123,
                Status: "pending",
                Items:  []Item{{ID: 1}, {ID: 2}},
            }

            a.Equal("completed", order.Status,
                "订单ID=%d应该已完成,当前状态=%s,包含%d个商品",
                order.ID, order.Status, len(order.Items))

            // 场景2:显示完整对象
            user := User{
                ID:    1,
                Name:  "Alice",
                Email: "alice@example.com",
                Roles: []string{"user", "admin"},
            }

            a.Contains(user.Roles, "superadmin",
                "用户应该有superadmin角色,用户信息:%+v", user)

            // 场景3:显示集合样本
            items := []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
            a.Len(items, 5,
                "期望5个元素,实际%d个,前3个: %v",
                len(items), items[:min(3, len(items))])
        }

        func TestExecutionPath(t *testing.T) {
            a := assert.New(t)

            // 显示执行路径
            input := 10
            step1 := Validate(input)
            step2 := Transform(step1)
            result := Calculate(step2)

            expected := 42
            a.Equal(expected, result,
                "计算流程:输入=%d -> 验证=%d -> 转换=%d -> 结果=%d(期望%d)",
                input, step1, step2, result, expected)
        }

        func TestComparisonDetails(t *testing.T) {
            a := assert.New(t)

            expected := map[string]int{
                "apples":  5,
                "oranges": 3,
                "bananas": 7,
            }

            actual := map[string]int{
                "apples":  5,
                "oranges": 4,  // 不同
                "bananas": 7,
            }

            a.Equal(expected, actual,
                "库存不匹配\n期望: %v\n实际: %v",
                expected, actual)
        }

        type Order struct {
            ID     int
            Status string
            Items  []Item
        }

        type Item struct {
            ID int
        }

        type User struct {
            ID    int
            Name  string
            Email string
            Roles []string
        }

        func min(a, b int) int {
            if a < b {
                return a
            }
            return b
        }

        func Validate(n int) int   { return n }
        func Transform(n int) int  { return n * 2 }
        func Calculate(n int) int  { return n + 22 }
        ---

04.Mock系统详解

01.Mock概念 a.什么是Mock Mock是测试中用来模拟真实对象行为的替代品。在单元测试中,Mock对象可以替代依赖项如数据库、外部API、文件系统等,使测试更快速、可控且独立。testify的mock包提供了强大的Mock功能,支持方法调用记录、参数验证和返回值控制。 b.Mock的作用 Mock隔离被测代码与外部依赖,使测试专注于当前单元。通过Mock可以模拟难以复现的场景如网络错误、超时等。Mock还能验证方法调用次数、参数和顺序,确保代码按预期与依赖交互。使用Mock可以大幅提升测试速度,避免真实依赖的开销。 c.代码示例 ``` // Mock基础概念示例 package mockbasic

    import (
        "testing"
        "github.com/stretchr/testify/assert"
        "github.com/stretchr/testify/mock"
    )

    // 定义接口
    type UserRepository interface {
        GetByID(id int) (*User, error)
        Save(user *User) error
        Delete(id int) error
    }

    // 创建Mock对象
    type MockUserRepository struct {
        mock.Mock
    }

    // 实现接口方法
    func (m *MockUserRepository) GetByID(id int) (*User, error) {
        args := m.Called(id)
        if args.Get(0) == nil {
            return nil, args.Error(1)
        }
        return args.Get(0).(*User), args.Error(1)
    }

    func (m *MockUserRepository) Save(user *User) error {
        args := m.Called(user)
        return args.Error(0)
    }

    func (m *MockUserRepository) Delete(id int) error {
        args := m.Called(id)
        return args.Error(0)
    }

    // 业务逻辑
    type UserService struct {
        repo UserRepository
    }

    func NewUserService(repo UserRepository) *UserService {
        return &UserService{repo: repo}
    }

    func (s *UserService) GetUser(id int) (*User, error) {
        return s.repo.GetByID(id)
    }

    func (s *UserService) CreateUser(name string) error {
        user := &User{Name: name}
        return s.repo.Save(user)
    }

    // 测试
    func TestUserService_GetUser(t *testing.T) {
        // 创建Mock
        mockRepo := new(MockUserRepository)

        // 设置期望
        expectedUser := &User{ID: 1, Name: "Alice"}
        mockRepo.On("GetByID", 1).Return(expectedUser, nil)

        // 创建服务
        service := NewUserService(mockRepo)

        // 执行
        user, err := service.GetUser(1)

        // 断言
        assert.NoError(t, err)
        assert.Equal(t, expectedUser, user)

        // 验证Mock调用
        mockRepo.AssertExpectations(t)
    }

    func TestUserService_CreateUser(t *testing.T) {
        mockRepo := new(MockUserRepository)

        // 设置期望:Save方法被调用一次,返回nil(成功)
        mockRepo.On("Save", mock.Anything).Return(nil)

        service := NewUserService(mockRepo)

        err := service.CreateUser("Bob")

        assert.NoError(t, err)
        mockRepo.AssertExpectations(t)
    }

    type User struct {
        ID   int
        Name string
    }
    ```

02.Mock对象创建 a.嵌入mock.Mock 创建Mock对象的第一步是定义一个结构体,嵌入mock.Mock类型。这为结构体提供了Mock的核心功能如Called、On、AssertExpectations等方法。mock.Mock必须通过组合方式使用,不能直接实例化。 b.实现接口方法 Mock结构体需要实现目标接口的所有方法。每个方法内部调用m.Called()传入参数,然后从返回的Arguments中提取结果。testify会记录所有调用并与预设的期望进行匹配。 c.代码示例 ``` // Mock对象创建详解 package mockcreation

    import (
        "context"
        "testing"
        "github.com/stretchr/testify/assert"
        "github.com/stretchr/testify/mock"
    )

    // 场景1:简单接口Mock
    type Calculator interface {
        Add(a, b int) int
        Divide(a, b int) (int, error)
    }

    type MockCalculator struct {
        mock.Mock
    }

    func (m *MockCalculator) Add(a, b int) int {
        args := m.Called(a, b)
        return args.Int(0)
    }

    func (m *MockCalculator) Divide(a, b int) (int, error) {
        args := m.Called(a, b)
        return args.Int(0), args.Error(1)
    }

    // 场景2:复杂返回值Mock
    type DataService interface {
        Query(ctx context.Context, sql string, params []interface{}) ([]map[string]interface{}, error)
        Execute(ctx context.Context, sql string) (affected int64, err error)
    }

    type MockDataService struct {
        mock.Mock
    }

    func (m *MockDataService) Query(ctx context.Context, sql string, params []interface{}) ([]map[string]interface{}, error) {
        args := m.Called(ctx, sql, params)
        if args.Get(0) == nil {
            return nil, args.Error(1)
        }
        return args.Get(0).([]map[string]interface{}), args.Error(1)
    }

    func (m *MockDataService) Execute(ctx context.Context, sql string) (int64, error) {
        args := m.Called(ctx, sql)
        return args.Get(0).(int64), args.Error(1)
    }

    // 场景3:可变参数Mock
    type Logger interface {
        Log(level string, msg string, fields ...interface{})
        Logf(level string, format string, args ...interface{})
    }

    type MockLogger struct {
        mock.Mock
    }

    func (m *MockLogger) Log(level string, msg string, fields ...interface{}) {
        args := []interface{}{level, msg}
        args = append(args, fields...)
        m.Called(args...)
    }

    func (m *MockLogger) Logf(level string, format string, args ...interface{}) {
        callArgs := []interface{}{level, format}
        callArgs = append(callArgs, args...)
        m.Called(callArgs...)
    }

    // 测试示例
    func TestMockCreation(t *testing.T) {
        // 测试简单Mock
        calc := new(MockCalculator)
        calc.On("Add", 2, 3).Return(5)

        result := calc.Add(2, 3)
        assert.Equal(t, 5, result)
        calc.AssertExpectations(t)

        // 测试复杂返回值Mock
        ds := new(MockDataService)
        ctx := context.Background()
        expectedRows := []map[string]interface{}{
            {"id": 1, "name": "Alice"},
            {"id": 2, "name": "Bob"},
        }
        ds.On("Query", ctx, "SELECT * FROM users", []interface{}{}).
            Return(expectedRows, nil)

        rows, err := ds.Query(ctx, "SELECT * FROM users", []interface{}{})
        assert.NoError(t, err)
        assert.Equal(t, expectedRows, rows)
        ds.AssertExpectations(t)
    }
    ```

03.Mock生命周期 a.创建和初始化 使用new()或&MockType{}创建Mock对象实例。创建后立即使用On方法设置期望。一个Mock对象可以在同一个测试中设置多个期望,支持不同的方法调用。 b.使用和验证 将Mock对象注入到被测代码中。代码执行时,Mock会记录所有方法调用。测试结束时调用AssertExpectations验证所有期望的方法都被正确调用。如果有未满足的期望或意外的调用,测试会失败。 c.代码示例 ``` // Mock生命周期管理 package mocklifecycle

    import (
        "testing"
        "github.com/stretchr/testify/assert"
        "github.com/stretchr/testify/mock"
    )

    type EmailService interface {
        Send(to, subject, body string) error
        SendBatch(recipients []string, subject, body string) error
    }

    type MockEmailService struct {
        mock.Mock
    }

    func (m *MockEmailService) Send(to, subject, body string) error {
        args := m.Called(to, subject, body)
        return args.Error(0)
    }

    func (m *MockEmailService) SendBatch(recipients []string, subject, body string) error {
        args := m.Called(recipients, subject, body)
        return args.Error(0)
    }

    type NotificationService struct {
        emailService EmailService
    }

    func (s *NotificationService) NotifyUser(email, message string) error {
        return s.emailService.Send(email, "Notification", message)
    }

    func (s *NotificationService) NotifyAll(emails []string, message string) error {
        return s.emailService.SendBatch(emails, "Broadcast", message)
    }

    func TestMockLifecycle(t *testing.T) {
        // 1. 创建阶段
        emailMock := new(MockEmailService)

        // 2. 设置期望阶段
        emailMock.On("Send", "user@example.com", "Notification", "Hello").
            Return(nil)

        // 3. 注入阶段
        service := &NotificationService{emailService: emailMock}

        // 4. 执行阶段
        err := service.NotifyUser("user@example.com", "Hello")

        // 5. 断言阶段
        assert.NoError(t, err)

        // 6. 验证期望阶段
        emailMock.AssertExpectations(t)
    }

    func TestMultipleExpectations(t *testing.T) {
        emailMock := new(MockEmailService)

        // 设置多个期望
        emailMock.On("Send", "alice@example.com", "Notification", "Hi Alice").
            Return(nil)
        emailMock.On("Send", "bob@example.com", "Notification", "Hi Bob").
            Return(nil)

        service := &NotificationService{emailService: emailMock}

        // 多次调用
        err1 := service.NotifyUser("alice@example.com", "Hi Alice")
        err2 := service.NotifyUser("bob@example.com", "Hi Bob")

        assert.NoError(t, err1)
        assert.NoError(t, err2)

        // 验证所有期望
        emailMock.AssertExpectations(t)
    }

    func TestMockReuse(t *testing.T) {
        // 注意:不建议在多个测试间共享Mock对象
        // 每个测试应该创建自己的Mock

        t.Run("Test1", func(t *testing.T) {
            emailMock := new(MockEmailService)
            emailMock.On("Send", mock.Anything, mock.Anything, mock.Anything).
                Return(nil).
                Once()

            service := &NotificationService{emailService: emailMock}
            err := service.NotifyUser("test@example.com", "Test")

            assert.NoError(t, err)
            emailMock.AssertExpectations(t)
        })

        t.Run("Test2", func(t *testing.T) {
            // 创建新的Mock实例
            emailMock := new(MockEmailService)
            emailMock.On("SendBatch", mock.Anything, mock.Anything, mock.Anything).
                Return(nil)

            service := &NotificationService{emailService: emailMock}
            err := service.NotifyAll([]string{"a@test.com", "b@test.com"}, "Batch")

            assert.NoError(t, err)
            emailMock.AssertExpectations(t)
        })
    }
    ```

01.On方法基础 a.On方法语法 On方法用于设置Mock对象的期望行为。基本语法是mock.On(“方法名”, 参数列表).Return(返回值列表)。参数列表必须与实际调用时的参数类型和数量匹配。On方法返回一个Call对象,可以链式调用其他方法如Return、Times、Once等进行更详细的配置。 b.参数匹配规则 On方法的参数支持精确匹配和模糊匹配。精确匹配要求参数值完全相同。模糊匹配使用mock.Anything、mock.AnythingOfType等匹配器。多个On调用可以针对同一方法设置不同参数的期望,testify会根据实际调用选择匹配的期望。 c.代码示例 ``` // 期望设置基础 package expectation

    import (
        "testing"
        "github.com/stretchr/testify/assert"
        "github.com/stretchr/testify/mock"
    )

    type StorageService interface {
        Get(key string) (string, error)
        Set(key, value string) error
        Delete(key string) error
        Exists(key string) bool
    }

    type MockStorageService struct {
        mock.Mock
    }

    func (m *MockStorageService) Get(key string) (string, error) {
        args := m.Called(key)
        return args.String(0), args.Error(1)
    }

    func (m *MockStorageService) Set(key, value string) error {
        args := m.Called(key, value)
        return args.Error(0)
    }

    func (m *MockStorageService) Delete(key string) error {
        args := m.Called(key)
        return args.Error(0)
    }

    func (m *MockStorageService) Exists(key string) bool {
        args := m.Called(key)
        return args.Bool(0)
    }

    func TestBasicExpectation(t *testing.T) {
        storage := new(MockStorageService)

        // 基本期望设置
        storage.On("Get", "username").Return("Alice", nil)
        storage.On("Set", "username", "Bob").Return(nil)
        storage.On("Delete", "oldkey").Return(nil)
        storage.On("Exists", "config").Return(true)

        // 执行并验证
        value, err := storage.Get("username")
        assert.NoError(t, err)
        assert.Equal(t, "Alice", value)

        err = storage.Set("username", "Bob")
        assert.NoError(t, err)

        err = storage.Delete("oldkey")
        assert.NoError(t, err)

        exists := storage.Exists("config")
        assert.True(t, exists)

        storage.AssertExpectations(t)
    }

    func TestMultipleExpectations(t *testing.T) {
        storage := new(MockStorageService)

        // 同一方法,不同参数的多个期望
        storage.On("Get", "user:1").Return("Alice", nil)
        storage.On("Get", "user:2").Return("Bob", nil)
        storage.On("Get", "user:3").Return("", nil)

        // testify会根据参数自动匹配
        val1, _ := storage.Get("user:1")
        val2, _ := storage.Get("user:2")
        val3, _ := storage.Get("user:3")

        assert.Equal(t, "Alice", val1)
        assert.Equal(t, "Bob", val2)
        assert.Equal(t, "", val3)

        storage.AssertExpectations(t)
    }

    func TestAnythingMatcher(t *testing.T) {
        storage := new(MockStorageService)

        // 使用mock.Anything匹配任意参数
        storage.On("Set", mock.Anything, mock.Anything).Return(nil)
        storage.On("Get", mock.Anything).Return("default", nil)

        // 任何参数都会匹配
        err := storage.Set("key1", "value1")
        assert.NoError(t, err)

        err = storage.Set("key2", "value2")
        assert.NoError(t, err)

        value, _ := storage.Get("anykey")
        assert.Equal(t, "default", value)
    }

    func TestExpectationPriority(t *testing.T) {
        storage := new(MockStorageService)

        // 精确匹配优先于模糊匹配
        storage.On("Get", "special").Return("SPECIAL", nil)
        storage.On("Get", mock.Anything).Return("default", nil)

        // "special"匹配精确期望
        special, _ := storage.Get("special")
        assert.Equal(t, "SPECIAL", special)

        // 其他键匹配模糊期望
        other, _ := storage.Get("other")
        assert.Equal(t, "default", other)

        storage.AssertExpectations(t)
    }
    ```

02.Return方法详解 a.返回单个值 Return方法指定Mock方法被调用时的返回值。参数数量和类型必须与接口方法的返回值匹配。对于单返回值方法,传入一个参数。对于多返回值方法,传入多个参数。nil可以用于指针和error类型。 b.返回多个值 Go方法常返回多个值,最后一个通常是error。Return方法按顺序接收所有返回值。例如Return(“result”, nil)表示返回字符串”result”和nil错误。返回值类型必须与接口定义完全匹配。 c.代码示例 ``` // Return方法详解 package returnmethod

    import (
        "errors"
        "testing"
        "github.com/stretchr/testify/assert"
        "github.com/stretchr/testify/mock"
    )

    type DataService interface {
        FetchOne(id int) (*Record, error)
        FetchMany(ids []int) ([]*Record, error)
        Count() int
        Process(data []byte) (result []byte, count int, err error)
    }

    type MockDataService struct {
        mock.Mock
    }

    func (m *MockDataService) FetchOne(id int) (*Record, error) {
        args := m.Called(id)
        if args.Get(0) == nil {
            return nil, args.Error(1)
        }
        return args.Get(0).(*Record), args.Error(1)
    }

    func (m *MockDataService) FetchMany(ids []int) ([]*Record, error) {
        args := m.Called(ids)
        if args.Get(0) == nil {
            return nil, args.Error(1)
        }
        return args.Get(0).([]*Record), args.Error(1)
    }

    func (m *MockDataService) Count() int {
        args := m.Called()
        return args.Int(0)
    }

    func (m *MockDataService) Process(data []byte) ([]byte, int, error) {
        args := m.Called(data)
        return args.Get(0).([]byte), args.Int(1), args.Error(2)
    }

    type Record struct {
        ID   int
        Name string
    }

    func TestReturnSingleValue(t *testing.T) {
        ds := new(MockDataService)

        // 返回单个值
        ds.On("Count").Return(42)

        count := ds.Count()
        assert.Equal(t, 42, count)

        ds.AssertExpectations(t)
    }

    func TestReturnTwoValues(t *testing.T) {
        ds := new(MockDataService)

        // 返回两个值:对象和error
        record := &Record{ID: 1, Name: "Alice"}
        ds.On("FetchOne", 1).Return(record, nil)

        // 返回nil和error
        ds.On("FetchOne", 999).Return(nil, errors.New("not found"))

        // 测试成功场景
        r, err := ds.FetchOne(1)
        assert.NoError(t, err)
        assert.Equal(t, record, r)

        // 测试错误场景
        r, err = ds.FetchOne(999)
        assert.Error(t, err)
        assert.Nil(t, r)

        ds.AssertExpectations(t)
    }

    func TestReturnMultipleValues(t *testing.T) {
        ds := new(MockDataService)

        // 返回三个值
        input := []byte("input")
        output := []byte("output")
        ds.On("Process", input).Return(output, 10, nil)

        result, count, err := ds.Process(input)
        assert.NoError(t, err)
        assert.Equal(t, output, result)
        assert.Equal(t, 10, count)

        ds.AssertExpectations(t)
    }

    func TestReturnSliceAndError(t *testing.T) {
        ds := new(MockDataService)

        // 返回切片
        records := []*Record{
            {ID: 1, Name: "Alice"},
            {ID: 2, Name: "Bob"},
        }
        ds.On("FetchMany", []int{1, 2}).Return(records, nil)

        // 返回空切片
        ds.On("FetchMany", []int{}).Return([]*Record{}, nil)

        // 返回nil切片和error
        ds.On("FetchMany", []int{999}).Return(nil, errors.New("error"))

        // 测试
        r1, err1 := ds.FetchMany([]int{1, 2})
        assert.NoError(t, err1)
        assert.Len(t, r1, 2)

        r2, err2 := ds.FetchMany([]int{})
        assert.NoError(t, err2)
        assert.Len(t, r2, 0)

        r3, err3 := ds.FetchMany([]int{999})
        assert.Error(t, err3)
        assert.Nil(t, r3)

        ds.AssertExpectations(t)
    }
    ```

03.调用次数控制 a.Once和Times Once()限制方法只能被调用一次。Times(n)限制方法必须被调用n次。如果不指定次数,默认期望至少被调用一次。这些方法用于精确控制和验证方法调用频率,确保代码按预期执行。 b.Maybe和其他选项 Maybe()表示方法可能被调用也可能不被调用,不会导致测试失败。这适用于可选的操作如日志记录。还可以使用AtLeast、AtMost等方法设置范围。 c.代码示例 ``` // 调用次数控制 package callcount

    import (
        "testing"
        "github.com/stretchr/testify/assert"
        "github.com/stretchr/testify/mock"
    )

    type CacheService interface {
        Get(key string) (string, bool)
        Set(key, value string)
        Invalidate(key string)
        Clear()
    }

    type MockCacheService struct {
        mock.Mock
    }

    func (m *MockCacheService) Get(key string) (string, bool) {
        args := m.Called(key)
        return args.String(0), args.Bool(1)
    }

    func (m *MockCacheService) Set(key, value string) {
        m.Called(key, value)
    }

    func (m *MockCacheService) Invalidate(key string) {
        m.Called(key)
    }

    func (m *MockCacheService) Clear() {
        m.Called()
    }

    func TestOnce(t *testing.T) {
        cache := new(MockCacheService)

        // 期望被调用一次
        cache.On("Get", "config").Return("value", true).Once()

        // 第一次调用成功
        value, ok := cache.Get("config")
        assert.True(t, ok)
        assert.Equal(t, "value", value)

        // 如果再次调用会失败(因为只期望一次)
        // cache.Get("config") // 这会导致测试失败

        cache.AssertExpectations(t)
    }

    func TestTimes(t *testing.T) {
        cache := new(MockCacheService)

        // 期望被调用3次
        cache.On("Set", mock.Anything, mock.Anything).Times(3)

        cache.Set("key1", "value1")
        cache.Set("key2", "value2")
        cache.Set("key3", "value3")

        // 正好3次,验证通过
        cache.AssertExpectations(t)
    }

    func TestMaybe(t *testing.T) {
        cache := new(MockCacheService)

        // 可能被调用也可能不被调用
        cache.On("Clear").Maybe().Return()
        cache.On("Get", "optional").Maybe().Return("", false)

        // 不调用也不会失败
        cache.AssertExpectations(t)
    }

    func TestMaybeWithCall(t *testing.T) {
        cache := new(MockCacheService)

        cache.On("Invalidate", "temp").Maybe().Return()

        // 调用了也不会失败
        cache.Invalidate("temp")

        cache.AssertExpectations(t)
    }

    func TestMultipleCallsPattern(t *testing.T) {
        cache := new(MockCacheService)

        // 设置会被调用多次的期望
        cache.On("Get", "user:123").Return("Alice", true).Times(3)
        cache.On("Set", "user:123", mock.Anything).Once()

        // 第一次Get
        value1, _ := cache.Get("user:123")
        assert.Equal(t, "Alice", value1)

        // 更新
        cache.Set("user:123", "Alice Updated")

        // 再次Get(2次)
        value2, _ := cache.Get("user:123")
        value3, _ := cache.Get("user:123")
        assert.Equal(t, "Alice", value2)
        assert.Equal(t, "Alice", value3)

        cache.AssertExpectations(t)
    }

    func TestUnlimitedCalls(t *testing.T) {
        cache := new(MockCacheService)

        // 不限制调用次数(至少一次)
        cache.On("Get", "frequent").Return("value", true)

        // 可以调用任意多次
        for i := 0; i < 100; i++ {
            cache.Get("frequent")
        }

        cache.AssertExpectations(t)
    }
    ```

04.条件期望 a.运行时函数 可以使用Run方法在Mock方法被调用时执行自定义逻辑。这对于模拟副作用、验证参数、动态修改状态等场景很有用。Run接收一个函数,函数参数是Arguments对象,可以从中提取调用参数。 b.Return函数 ReturnFunc允许根据输入参数动态计算返回值。不同于固定的Return,ReturnFunc在每次调用时都会执行,可以根据参数返回不同的结果。这对于模拟复杂的业务逻辑很有帮助。 c.代码示例 ``` // 条件期望和动态行为 package conditional

    import (
        "fmt"
        "strings"
        "testing"
        "github.com/stretchr/testify/assert"
        "github.com/stretchr/testify/mock"
    )

    type TransformService interface {
        Transform(input string) (string, error)
        Validate(data interface{}) bool
        Process(items []string) []string
    }

    type MockTransformService struct {
        mock.Mock
    }

    func (m *MockTransformService) Transform(input string) (string, error) {
        args := m.Called(input)
        return args.String(0), args.Error(1)
    }

    func (m *MockTransformService) Validate(data interface{}) bool {
        args := m.Called(data)
        return args.Bool(0)
    }

    func (m *MockTransformService) Process(items []string) []string {
        args := m.Called(items)
        return args.Get(0).([]string)
    }

    func TestRunMethod(t *testing.T) {
        service := new(MockTransformService)

        var capturedInput string

        // 使用Run捕获参数
        service.On("Transform", mock.Anything).
            Run(func(args mock.Arguments) {
                capturedInput = args.String(0)
                fmt.Printf("Transform called with: %s\n", capturedInput)
            }).
            Return("result", nil)

        service.Transform("test input")

        assert.Equal(t, "test input", capturedInput)
        service.AssertExpectations(t)
    }

    func TestReturnFunc(t *testing.T) {
        service := new(MockTransformService)

        // 根据输入动态返回结果
        service.On("Transform", mock.Anything).
            Return(func(input string) string {
                return strings.ToUpper(input)
            }, func(input string) error {
                if input == "" {
                    return fmt.Errorf("empty input")
                }
                return nil
            })

        // 测试不同输入
        result1, err1 := service.Transform("hello")
        assert.NoError(t, err1)
        assert.Equal(t, "HELLO", result1)

        result2, err2 := service.Transform("world")
        assert.NoError(t, err2)
        assert.Equal(t, "WORLD", result2)

        _, err3 := service.Transform("")
        assert.Error(t, err3)

        service.AssertExpectations(t)
    }

    func TestConditionalValidation(t *testing.T) {
        service := new(MockTransformService)

        // 根据参数类型返回不同结果
        service.On("Validate", mock.Anything).
            Return(func(data interface{}) bool {
                switch v := data.(type) {
                case string:
                    return v != ""
                case int:
                    return v > 0
                default:
                    return false
                }
            })

        assert.True(t, service.Validate("hello"))
        assert.False(t, service.Validate(""))
        assert.True(t, service.Validate(10))
        assert.False(t, service.Validate(-5))

        service.AssertExpectations(t)
    }

    func TestComplexDynamicBehavior(t *testing.T) {
        service := new(MockTransformService)

        callCount := 0

        // 每次调用返回不同结果
        service.On("Process", mock.Anything).
            Return(func(items []string) []string {
                callCount++
                // 第一次调用:转换为大写
                if callCount == 1 {
                    result := make([]string, len(items))
                    for i, item := range items {
                        result[i] = strings.ToUpper(item)
                    }
                    return result
                }
                // 第二次调用:反转顺序
                if callCount == 2 {
                    result := make([]string, len(items))
                    for i, item := range items {
                        result[len(items)-1-i] = item
                    }
                    return result
                }
                // 后续调用:返回原样
                return items
            })

        input := []string{"a", "b", "c"}

        result1 := service.Process(input)
        assert.Equal(t, []string{"A", "B", "C"}, result1)

        result2 := service.Process(input)
        assert.Equal(t, []string{"c", "b", "a"}, result2)

        result3 := service.Process(input)
        assert.Equal(t, input, result3)

        service.AssertExpectations(t)
    }
    ```

01.精确匹配 a.值匹配原理 精确匹配要求Mock方法调用时的参数值与On方法中指定的参数值完全相同。对于基本类型如int、string、bool,使用==比较。对于指针和引用类型,比较的是地址而不是内容,这可能导致意外的不匹配。 b.类型匹配规则 参数类型必须严格匹配。即使值相同,类型不同也不会匹配。例如int(5)和int64(5)是不同的。对于接口类型,实际传入的具体类型必须一致。切片、映射等复合类型需要特别注意。 c.代码示例 ``` // 精确参数匹配 package exactmatch

    import (
        "testing"
        "github.com/stretchr/testify/assert"
        "github.com/stretchr/testify/mock"
    )

    type Calculator interface {
        Add(a, b int) int
        Concat(s1, s2 string) string
        Multiply(factors []int) int
        UpdateUser(user *User) error
    }

    type MockCalculator struct {
        mock.Mock
    }

    func (m *MockCalculator) Add(a, b int) int {
        args := m.Called(a, b)
        return args.Int(0)
    }

    func (m *MockCalculator) Concat(s1, s2 string) string {
        args := m.Called(s1, s2)
        return args.String(0)
    }

    func (m *MockCalculator) Multiply(factors []int) int {
        args := m.Called(factors)
        return args.Int(0)
    }

    func (m *MockCalculator) UpdateUser(user *User) error {
        args := m.Called(user)
        return args.Error(0)
    }

    type User struct {
        ID   int
        Name string
    }

    func TestExactValueMatch(t *testing.T) {
        calc := new(MockCalculator)

        // 精确匹配基本类型
        calc.On("Add", 2, 3).Return(5)
        calc.On("Add", 10, 20).Return(30)

        result1 := calc.Add(2, 3)
        assert.Equal(t, 5, result1)

        result2 := calc.Add(10, 20)
        assert.Equal(t, 30, result2)

        // 不同的参数不会匹配
        // calc.Add(1, 1) // 会失败,没有匹配的期望

        calc.AssertExpectations(t)
    }

    func TestStringMatch(t *testing.T) {
        calc := new(MockCalculator)

        // 字符串精确匹配
        calc.On("Concat", "Hello", "World").Return("HelloWorld")
        calc.On("Concat", "", "").Return("")

        result1 := calc.Concat("Hello", "World")
        assert.Equal(t, "HelloWorld", result1)

        result2 := calc.Concat("", "")
        assert.Equal(t, "", result2)

        calc.AssertExpectations(t)
    }

    func TestSliceMatch(t *testing.T) {
        calc := new(MockCalculator)

        // 注意:切片按引用比较,不是按内容
        // 需要使用相同的切片实例
        factors := []int{2, 3, 4}
        calc.On("Multiply", factors).Return(24)

        result := calc.Multiply(factors)
        assert.Equal(t, 24, result)

        // 内容相同但是不同实例的切片不会匹配
        // calc.Multiply([]int{2, 3, 4}) // 会失败

        calc.AssertExpectations(t)
    }

    func TestPointerMatch(t *testing.T) {
        calc := new(MockCalculator)

        // 指针按地址匹配
        user := &User{ID: 1, Name: "Alice"}
        calc.On("UpdateUser", user).Return(nil)

        // 使用相同的指针实例
        err := calc.UpdateUser(user)
        assert.NoError(t, err)

        // 不同的指针实例即使内容相同也不匹配
        // differentUser := &User{ID: 1, Name: "Alice"}
        // calc.UpdateUser(differentUser) // 会失败

        calc.AssertExpectations(t)
    }

    func TestMatchOrdering(t *testing.T) {
        calc := new(MockCalculator)

        // 参数顺序很重要
        calc.On("Concat", "A", "B").Return("AB")
        calc.On("Concat", "B", "A").Return("BA")

        result1 := calc.Concat("A", "B")
        result2 := calc.Concat("B", "A")

        assert.Equal(t, "AB", result1)
        assert.Equal(t, "BA", result2)

        calc.AssertExpectations(t)
    }
    ```

02.模糊匹配器 a.mock.Anything mock.Anything匹配任意类型和任意值的参数。它是最宽松的匹配器,适用于不关心具体参数值的场景。可以用于任何参数位置,与其他精确参数或匹配器混合使用。 b.mock.AnythingOfType mock.AnythingOfType按类型匹配参数。传入类型的字符串表示如”string”、“int”、“*User”。这比Anything更严格,确保类型正确但不关心具体值。类型名必须准确,包括指针星号和包路径。 c.代码示例 ``` // 模糊匹配器 package fuzzymatch

    import (
        "errors"
        "testing"
        "github.com/stretchr/testify/assert"
        "github.com/stretchr/testify/mock"
    )

    type DataStore interface {
        Save(key string, value interface{}) error
        Load(key string) (interface{}, error)
        Update(id int, data map[string]interface{}) error
        Query(filter func(interface{}) bool) []interface{}
    }

    type MockDataStore struct {
        mock.Mock
    }

    func (m *MockDataStore) Save(key string, value interface{}) error {
        args := m.Called(key, value)
        return args.Error(0)
    }

    func (m *MockDataStore) Load(key string) (interface{}, error) {
        args := m.Called(key)
        return args.Get(0), args.Error(1)
    }

    func (m *MockDataStore) Update(id int, data map[string]interface{}) error {
        args := m.Called(id, data)
        return args.Error(0)
    }

    func (m *MockDataStore) Query(filter func(interface{}) bool) []interface{} {
        args := m.Called(filter)
        return args.Get(0).([]interface{})
    }

    func TestMockAnything(t *testing.T) {
        store := new(MockDataStore)

        // 匹配任意参数
        store.On("Save", mock.Anything, mock.Anything).Return(nil)

        // 任何参数都会匹配
        err1 := store.Save("key1", "string value")
        err2 := store.Save("key2", 123)
        err3 := store.Save("key3", []int{1, 2, 3})

        assert.NoError(t, err1)
        assert.NoError(t, err2)
        assert.NoError(t, err3)

        store.AssertExpectations(t)
    }

    func TestMixedMatchers(t *testing.T) {
        store := new(MockDataStore)

        // 精确匹配第一个参数,模糊匹配第二个
        store.On("Save", "user:123", mock.Anything).Return(nil)

        // 第一个参数必须是"user:123",第二个可以是任意值
        err1 := store.Save("user:123", "Alice")
        err2 := store.Save("user:123", map[string]string{"name": "Alice"})

        assert.NoError(t, err1)
        assert.NoError(t, err2)

        // 第一个参数不匹配会失败
        // store.Save("user:456", "Bob") // 失败

        store.AssertExpectations(t)
    }

    func TestAnythingOfType(t *testing.T) {
        store := new(MockDataStore)

        // 按类型匹配
        store.On("Save", mock.AnythingOfType("string"), mock.AnythingOfType("string")).
            Return(nil)
        store.On("Update", mock.AnythingOfType("int"), mock.AnythingOfType("map[string]interface {}")).
            Return(nil)

        // 类型匹配成功
        err1 := store.Save("key", "value")
        assert.NoError(t, err1)

        data := map[string]interface{}{"field": "value"}
        err2 := store.Update(1, data)
        assert.NoError(t, err2)

        // 类型不匹配会失败
        // store.Save("key", 123) // 失败,第二个参数不是string

        store.AssertExpectations(t)
    }

    func TestPointerTypeMatch(t *testing.T) {
        type Record struct {
            Data string
        }

        type RecordStore interface {
            Insert(r *Record) error
            Fetch(id int) *Record
        }

        type MockRecordStore struct {
            mock.Mock
        }

        func (m *MockRecordStore) Insert(r *Record) error {
            args := m.Called(r)
            return args.Error(0)
        }

        func (m *MockRecordStore) Fetch(id int) *Record {
            args := m.Called(id)
            if args.Get(0) == nil {
                return nil
            }
            return args.Get(0).(*Record)
        }

        store := new(MockRecordStore)

        // 匹配指针类型(注意类型字符串中的*)
        store.On("Insert", mock.AnythingOfType("*fuzzymatch.Record")).Return(nil)

        record := &Record{Data: "test"}
        err := store.Insert(record)
        assert.NoError(t, err)

        store.AssertExpectations(t)
    }

    func TestComplexTypeMatch(t *testing.T) {
        store := new(MockDataStore)

        // 匹配函数类型
        store.On("Query", mock.AnythingOfType("func(interface {}) bool")).
            Return([]interface{}{1, 2, 3})

        filter := func(v interface{}) bool {
            return true
        }

        results := store.Query(filter)
        assert.Len(t, results, 3)

        store.AssertExpectations(t)
    }
    ```

03.自定义匹配器 a.MatchedBy方法 mock.MatchedBy接收一个判断函数,返回bool表示参数是否匹配。这允许实现任意复杂的匹配逻辑。函数接收interface{}类型参数,需要进行类型断言后再判断。 b.匹配器组合 多个匹配器可以组合使用,每个参数位置可以使用不同的匹配策略。可以混合精确匹配、Anything、AnythingOfType和MatchedBy。testify会从左到右依次验证每个参数。 c.代码示例 ``` // 自定义匹配器 package custommatch

    import (
        "strings"
        "testing"
        "github.com/stretchr/testify/assert"
        "github.com/stretchr/testify/mock"
    )

    type Validator interface {
        ValidateEmail(email string) bool
        ValidateAge(age int) bool
        ValidateUser(user *User) error
        ProcessData(data []byte) error
    }

    type MockValidator struct {
        mock.Mock
    }

    func (m *MockValidator) ValidateEmail(email string) bool {
        args := m.Called(email)
        return args.Bool(0)
    }

    func (m *MockValidator) ValidateAge(age int) bool {
        args := m.Called(age)
        return args.Bool(0)
    }

    func (m *MockValidator) ValidateUser(user *User) error {
        args := m.Called(user)
        return args.Error(0)
    }

    func (m *MockValidator) ProcessData(data []byte) error {
        args := m.Called(data)
        return args.Error(0)
    }

    type User struct {
        Name  string
        Email string
        Age   int
    }

    func TestMatchedByString(t *testing.T) {
        validator := new(MockValidator)

        // 自定义字符串匹配:包含@符号
        validator.On("ValidateEmail",
            mock.MatchedBy(func(email interface{}) bool {
                s, ok := email.(string)
                return ok && strings.Contains(s, "@")
            })).Return(true)

        // 包含@的邮箱匹配成功
        result1 := validator.ValidateEmail("user@example.com")
        assert.True(t, result1)

        result2 := validator.ValidateEmail("admin@test.com")
        assert.True(t, result2)

        // 不包含@的不匹配
        // validator.ValidateEmail("invalid") // 失败

        validator.AssertExpectations(t)
    }

    func TestMatchedByInt(t *testing.T) {
        validator := new(MockValidator)

        // 自定义整数匹配:大于等于18
        validator.On("ValidateAge",
            mock.MatchedBy(func(age interface{}) bool {
                n, ok := age.(int)
                return ok && n >= 18
            })).Return(true)

        // 成年人年龄匹配成功
        result1 := validator.ValidateAge(18)
        result2 := validator.ValidateAge(25)
        result3 := validator.ValidateAge(100)

        assert.True(t, result1)
        assert.True(t, result2)
        assert.True(t, result3)

        // 未成年不匹配
        // validator.ValidateAge(17) // 失败

        validator.AssertExpectations(t)
    }

    func TestMatchedByStruct(t *testing.T) {
        validator := new(MockValidator)

        // 自定义结构体匹配:Name不为空
        validator.On("ValidateUser",
            mock.MatchedBy(func(u interface{}) bool {
                user, ok := u.(*User)
                return ok && user != nil && user.Name != ""
            })).Return(nil)

        // 有效用户匹配成功
        err1 := validator.ValidateUser(&User{Name: "Alice"})
        err2 := validator.ValidateUser(&User{Name: "Bob", Age: 30})

        assert.NoError(t, err1)
        assert.NoError(t, err2)

        // 无效用户不匹配
        // validator.ValidateUser(&User{}) // 失败,Name为空
        // validator.ValidateUser(nil) // 失败,nil指针

        validator.AssertExpectations(t)
    }

    func TestComplexMatcher(t *testing.T) {
        validator := new(MockValidator)

        // 复杂条件:长度在10-100字节之间且包含特定前缀
        validator.On("ProcessData",
            mock.MatchedBy(func(d interface{}) bool {
                data, ok := d.([]byte)
                if !ok {
                    return false
                }
                return len(data) >= 10 &&
                       len(data) <= 100 &&
                       strings.HasPrefix(string(data), "VALID:")
            })).Return(nil)

        // 符合条件的数据
        err1 := validator.ProcessData([]byte("VALID:1234567890"))
        assert.NoError(t, err1)

        // 不符合条件
        // validator.ProcessData([]byte("short")) // 失败,太短
        // validator.ProcessData([]byte("INVALID:1234567890")) // 失败,前缀错误

        validator.AssertExpectations(t)
    }

    func TestMatcherCombination(t *testing.T) {
        type MultiParam interface {
            Process(id int, name string, data []byte) error
        }

        type MockMultiParam struct {
            mock.Mock
        }

        func (m *MockMultiParam) Process(id int, name string, data []byte) error {
            args := m.Called(id, name, data)
            return args.Error(0)
        }

        service := new(MockMultiParam)

        // 组合不同的匹配器
        service.On("Process",
            mock.MatchedBy(func(id interface{}) bool {
                n, ok := id.(int)
                return ok && n > 0 // ID必须为正数
            }),
            mock.AnythingOfType("string"), // Name必须是字符串
            mock.MatchedBy(func(data interface{}) bool {
                d, ok := data.([]byte)
                return ok && len(d) > 0 // Data不能为空
            }),
        ).Return(nil)

        // 满足所有条件
        err := service.Process(123, "test", []byte("data"))
        assert.NoError(t, err)

        service.AssertExpectations(t)
    }
    ```

04.特殊场景匹配 a.nil值匹配 nil可以作为参数直接传入On方法进行精确匹配。对于接口类型,nil表示接口值为nil。对于指针类型,nil表示空指针。使用mock.Anything也会匹配nil值。 b.空值和零值 空字符串""、空切片[]Type{}、零值0等都可以精确匹配。注意空切片和nil切片在Go中是不同的,前者是非nil但长度为0的切片,后者是nil。这在匹配时需要区分。 c.代码示例 ``` // 特殊场景参数匹配 package specialmatch

    import (
        "testing"
        "github.com/stretchr/testify/assert"
        "github.com/stretchr/testify/mock"
    )

    type SpecialService interface {
        HandleNil(data *Data) error
        HandleEmpty(items []string) int
        HandleZero(count int) bool
        HandleInterface(value interface{}) string
    }

    type MockSpecialService struct {
        mock.Mock
    }

    func (m *MockSpecialService) HandleNil(data *Data) error {
        args := m.Called(data)
        return args.Error(0)
    }

    func (m *MockSpecialService) HandleEmpty(items []string) int {
        args := m.Called(items)
        return args.Int(0)
    }

    func (m *MockSpecialService) HandleZero(count int) bool {
        args := m.Called(count)
        return args.Bool(0)
    }

    func (m *MockSpecialService) HandleInterface(value interface{}) string {
        args := m.Called(value)
        return args.String(0)
    }

    type Data struct {
        Value string
    }

    func TestNilPointerMatch(t *testing.T) {
        service := new(MockSpecialService)

        // 精确匹配nil指针
        service.On("HandleNil", (*Data)(nil)).Return(nil)

        // 使用nil调用
        err := service.HandleNil(nil)
        assert.NoError(t, err)

        service.AssertExpectations(t)
    }

    func TestNilWithAnything(t *testing.T) {
        service := new(MockSpecialService)

        // mock.Anything也匹配nil
        service.On("HandleNil", mock.Anything).Return(nil)

        // nil匹配
        err1 := service.HandleNil(nil)
        assert.NoError(t, err1)

        // 非nil也匹配
        err2 := service.HandleNil(&Data{Value: "test"})
        assert.NoError(t, err2)

        service.AssertExpectations(t)
    }

    func TestEmptySliceMatch(t *testing.T) {
        service := new(MockSpecialService)

        // 注意:空切片和nil切片不同
        emptySlice := []string{}
        service.On("HandleEmpty", emptySlice).Return(0)

        // 使用相同的空切片实例
        count := service.HandleEmpty(emptySlice)
        assert.Equal(t, 0, count)

        service.AssertExpectations(t)
    }

    func TestNilSliceMatch(t *testing.T) {
        service := new(MockSpecialService)

        // nil切片匹配
        var nilSlice []string
        service.On("HandleEmpty", nilSlice).Return(-1)

        count := service.HandleEmpty(nilSlice)
        assert.Equal(t, -1, count)

        service.AssertExpectations(t)
    }

    func TestZeroValueMatch(t *testing.T) {
        service := new(MockSpecialService)

        // 零值精确匹配
        service.On("HandleZero", 0).Return(true)
        service.On("HandleZero", mock.MatchedBy(func(n interface{}) bool {
            num, ok := n.(int)
            return ok && num > 0
        })).Return(false)

        // 零值匹配第一个期望
        result1 := service.HandleZero(0)
        assert.True(t, result1)

        // 正数匹配第二个期望
        result2 := service.HandleZero(5)
        assert.False(t, result2)

        service.AssertExpectations(t)
    }

    func TestInterfaceNilMatch(t *testing.T) {
        service := new(MockSpecialService)

        // 接口类型的nil
        service.On("HandleInterface", nil).Return("nil value")
        service.On("HandleInterface", mock.Anything).Return("non-nil value")

        // nil匹配精确期望(精确匹配优先)
        result1 := service.HandleInterface(nil)
        assert.Equal(t, "nil value", result1)

        // 非nil匹配Anything
        result2 := service.HandleInterface("test")
        assert.Equal(t, "non-nil value", result2)

        service.AssertExpectations(t)
    }

    func TestEmptyStringMatch(t *testing.T) {
        type StringService interface {
            Process(s string) int
        }

        type MockStringService struct {
            mock.Mock
        }

        func (m *MockStringService) Process(s string) int {
            args := m.Called(s)
            return args.Int(0)
        }

        service := new(MockStringService)

        // 空字符串精确匹配
        service.On("Process", "").Return(0)
        service.On("Process", mock.Anything).Return(1)

        // 空字符串匹配精确期望
        result1 := service.Process("")
        assert.Equal(t, 0, result1)

        // 非空字符串匹配Anything
        result2 := service.Process("hello")
        assert.Equal(t, 1, result2)

        service.AssertExpectations(t)
    }
    ```

4.4 返回值控制

01.固定返回值
    a.Return方法回顾
        Return方法设置Mock方法的固定返回值。每次调用该方法都会返回相同的值。参数必须与接口方法的返回签名匹配。对于多返回值,按顺序传入所有返回值。这是最简单直接的返回值控制方式。
    b.返回nil和零值
        Go的零值如0、""、false、nil可以直接作为返回值。对于指针和error类型,nil表示空值和无错误。返回nil时要注意接收方的类型断言,避免nil pointer dereference。
    c.代码示例
        ---
        // 固定返回值控制
        package fixedreturn

        import (
            "errors"
            "testing"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        type ProductService interface {
            GetPrice(productID int) (float64, error)
            GetStock(productID int) (int, error)
            GetProduct(id int) (*Product, error)
            ListProducts(category string) ([]*Product, error)
        }

        type MockProductService struct {
            mock.Mock
        }

        func (m *MockProductService) GetPrice(productID int) (float64, error) {
            args := m.Called(productID)
            return args.Get(0).(float64), args.Error(1)
        }

        func (m *MockProductService) GetStock(productID int) (int, error) {
            args := m.Called(productID)
            return args.Int(0), args.Error(1)
        }

        func (m *MockProductService) GetProduct(id int) (*Product, error) {
            args := m.Called(id)
            if args.Get(0) == nil {
                return nil, args.Error(1)
            }
            return args.Get(0).(*Product), args.Error(1)
        }

        func (m *MockProductService) ListProducts(category string) ([]*Product, error) {
            args := m.Called(category)
            if args.Get(0) == nil {
                return nil, args.Error(1)
            }
            return args.Get(0).([]*Product), args.Error(1)
        }

        type Product struct {
            ID       int
            Name     string
            Price    float64
            Category string
        }

        func TestFixedReturn(t *testing.T) {
            service := new(MockProductService)

            // 固定返回基本类型
            service.On("GetPrice", 1).Return(99.99, nil)
            service.On("GetStock", 1).Return(50, nil)

            price, err := service.GetPrice(1)
            assert.NoError(t, err)
            assert.Equal(t, 99.99, price)

            stock, err := service.GetStock(1)
            assert.NoError(t, err)
            assert.Equal(t, 50, stock)

            service.AssertExpectations(t)
        }

        func TestReturnNil(t *testing.T) {
            service := new(MockProductService)

            // 返回nil对象和error
            service.On("GetProduct", 999).Return(nil, errors.New("not found"))

            product, err := service.GetProduct(999)
            assert.Error(t, err)
            assert.Nil(t, product)
            assert.Equal(t, "not found", err.Error())

            service.AssertExpectations(t)
        }

        func TestReturnStruct(t *testing.T) {
            service := new(MockProductService)

            // 返回结构体指针
            expectedProduct := &Product{
                ID:       1,
                Name:     "Laptop",
                Price:    999.99,
                Category: "Electronics",
            }
            service.On("GetProduct", 1).Return(expectedProduct, nil)

            product, err := service.GetProduct(1)
            assert.NoError(t, err)
            assert.Equal(t, expectedProduct, product)
            assert.Equal(t, "Laptop", product.Name)

            service.AssertExpectations(t)
        }

        func TestReturnSlice(t *testing.T) {
            service := new(MockProductService)

            // 返回切片
            products := []*Product{
                {ID: 1, Name: "Product1", Category: "A"},
                {ID: 2, Name: "Product2", Category: "A"},
            }
            service.On("ListProducts", "A").Return(products, nil)

            // 返回空切片
            service.On("ListProducts", "B").Return([]*Product{}, nil)

            // 返回nil切片和error
            service.On("ListProducts", "C").Return(nil, errors.New("error"))

            result1, err1 := service.ListProducts("A")
            assert.NoError(t, err1)
            assert.Len(t, result1, 2)

            result2, err2 := service.ListProducts("B")
            assert.NoError(t, err2)
            assert.Len(t, result2, 0)

            result3, err3 := service.ListProducts("C")
            assert.Error(t, err3)
            assert.Nil(t, result3)

            service.AssertExpectations(t)
        }

        func TestReturnZeroValues(t *testing.T) {
            service := new(MockProductService)

            // 返回零值
            service.On("GetPrice", 0).Return(0.0, nil)
            service.On("GetStock", 0).Return(0, nil)

            price, _ := service.GetPrice(0)
            assert.Equal(t, 0.0, price)

            stock, _ := service.GetStock(0)
            assert.Equal(t, 0, stock)

            service.AssertExpectations(t)
        }
        ---

02.动态返回值
    a.Return函数
        Return可以接收函数作为参数,实现动态计算返回值。函数的参数对应Mock方法的参数,返回值对应Mock方法的返回值。这允许根据输入参数动态生成不同的输出,适合复杂的业务逻辑模拟。
    b.Run配合Return
        Run方法在方法调用时执行副作用,可以与Return配合使用。Run先执行,然后Return返回值。Run可以用于验证参数、修改外部状态、记录调用等。两者结合实现既有副作用又有返回值的复杂场景。
    c.代码示例
        ---
        // 动态返回值控制
        package dynamicreturn

        import (
            "fmt"
            "strings"
            "testing"
            "time"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        type ComputeService interface {
            Calculate(x, y int) int
            Transform(input string) (string, error)
            Generate(seed int) []int
            Timestamp() int64
        }

        type MockComputeService struct {
            mock.Mock
        }

        func (m *MockComputeService) Calculate(x, y int) int {
            args := m.Called(x, y)
            return args.Int(0)
        }

        func (m *MockComputeService) Transform(input string) (string, error) {
            args := m.Called(input)
            return args.String(0), args.Error(1)
        }

        func (m *MockComputeService) Generate(seed int) []int {
            args := m.Called(seed)
            return args.Get(0).([]int)
        }

        func (m *MockComputeService) Timestamp() int64 {
            args := m.Called()
            return args.Get(0).(int64)
        }

        func TestReturnFunction(t *testing.T) {
            service := new(MockComputeService)

            // 使用函数动态计算返回值
            service.On("Calculate", mock.Anything, mock.Anything).
                Return(func(x, y int) int {
                    return x + y
                })

            // 不同输入得到不同结果
            result1 := service.Calculate(2, 3)
            result2 := service.Calculate(10, 20)
            result3 := service.Calculate(100, 200)

            assert.Equal(t, 5, result1)
            assert.Equal(t, 30, result2)
            assert.Equal(t, 300, result3)

            service.AssertExpectations(t)
        }

        func TestReturnMultipleValues(t *testing.T) {
            service := new(MockComputeService)

            // 函数返回多个值
            service.On("Transform", mock.AnythingOfType("string")).
                Return(
                    func(input string) string {
                        return strings.ToUpper(input)
                    },
                    func(input string) error {
                        if input == "" {
                            return fmt.Errorf("empty input")
                        }
                        return nil
                    },
                )

            result1, err1 := service.Transform("hello")
            assert.NoError(t, err1)
            assert.Equal(t, "HELLO", result1)

            _, err2 := service.Transform("")
            assert.Error(t, err2)

            service.AssertExpectations(t)
        }

        func TestReturnWithSideEffect(t *testing.T) {
            service := new(MockComputeService)

            callLog := []string{}

            // Run记录调用,Return返回值
            service.On("Calculate", mock.Anything, mock.Anything).
                Run(func(args mock.Arguments) {
                    x := args.Int(0)
                    y := args.Int(1)
                    callLog = append(callLog, fmt.Sprintf("Calculate(%d, %d)", x, y))
                }).
                Return(func(x, y int) int {
                    return x * y
                })

            service.Calculate(2, 3)
            service.Calculate(4, 5)

            assert.Len(t, callLog, 2)
            assert.Equal(t, "Calculate(2, 3)", callLog[0])
            assert.Equal(t, "Calculate(4, 5)", callLog[1])

            service.AssertExpectations(t)
        }

        func TestReturnSequentialValues(t *testing.T) {
            service := new(MockComputeService)

            sequence := []int{1, 2, 3, 4, 5}
            index := 0

            // 每次调用返回序列中的下一个值
            service.On("Generate", mock.Anything).
                Return(func(seed int) []int {
                    if index >= len(sequence) {
                        return []int{}
                    }
                    result := sequence[index : index+1]
                    index++
                    return result
                })

            assert.Equal(t, []int{1}, service.Generate(0))
            assert.Equal(t, []int{2}, service.Generate(0))
            assert.Equal(t, []int{3}, service.Generate(0))

            service.AssertExpectations(t)
        }

        func TestReturnTimestamp(t *testing.T) {
            service := new(MockComputeService)

            // 每次调用返回当前时间戳
            service.On("Timestamp").
                Return(func() int64 {
                    return time.Now().Unix()
                })

            ts1 := service.Timestamp()
            time.Sleep(time.Millisecond * 100)
            ts2 := service.Timestamp()

            assert.True(t, ts2 >= ts1)

            service.AssertExpectations(t)
        }
        ---

03.条件返回
    a.基于参数的条件返回
        通过设置多个On期望,可以根据不同的参数返回不同的值。testify会按照参数匹配选择对应的期望。这是实现条件返回的最简单方式,适用于参数空间有限的场景。
    b.复杂条件逻辑
        使用Return函数可以实现任意复杂的条件逻辑。在函数内部可以使用if-else、switch等控制结构,根据参数或外部状态决定返回值。这提供了最大的灵活性。
    c.代码示例
        ---
        // 条件返回值控制
        package conditionalreturn

        import (
            "errors"
            "testing"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        type DiscountService interface {
            CalculateDiscount(amount float64, userType string) float64
            GetShippingCost(weight float64, distance int) (float64, error)
            ApplyPromo(code string, amount float64) (float64, error)
        }

        type MockDiscountService struct {
            mock.Mock
        }

        func (m *MockDiscountService) CalculateDiscount(amount float64, userType string) float64 {
            args := m.Called(amount, userType)
            return args.Get(0).(float64)
        }

        func (m *MockDiscountService) GetShippingCost(weight float64, distance int) (float64, error) {
            args := m.Called(weight, distance)
            return args.Get(0).(float64), args.Error(1)
        }

        func (m *MockDiscountService) ApplyPromo(code string, amount float64) (float64, error) {
            args := m.Called(code, amount)
            return args.Get(0).(float64), args.Error(1)
        }

        func TestParameterBasedReturn(t *testing.T) {
            service := new(MockDiscountService)

            // 根据用户类型返回不同折扣
            service.On("CalculateDiscount", mock.Anything, "vip").
                Return(func(amount float64, userType string) float64 {
                    return amount * 0.8 // VIP 20%折扣
                })

            service.On("CalculateDiscount", mock.Anything, "regular").
                Return(func(amount float64, userType string) float64 {
                    return amount * 0.95 // 普通用户5%折扣
                })

            service.On("CalculateDiscount", mock.Anything, "guest").
                Return(func(amount float64, userType string) float64 {
                    return amount // 访客无折扣
                })

            vipPrice := service.CalculateDiscount(100, "vip")
            regularPrice := service.CalculateDiscount(100, "regular")
            guestPrice := service.CalculateDiscount(100, "guest")

            assert.Equal(t, 80.0, vipPrice)
            assert.Equal(t, 95.0, regularPrice)
            assert.Equal(t, 100.0, guestPrice)

            service.AssertExpectations(t)
        }

        func TestComplexConditionalReturn(t *testing.T) {
            service := new(MockDiscountService)

            // 复杂的运费计算逻辑
            service.On("GetShippingCost", mock.Anything, mock.Anything).
                Return(
                    func(weight float64, distance int) float64 {
                        // 基础运费
                        base := 10.0

                        // 重量附加费
                        if weight > 5.0 {
                            base += (weight - 5.0) * 2.0
                        }

                        // 距离附加费
                        if distance > 100 {
                            base += float64(distance-100) * 0.1
                        }

                        return base
                    },
                    func(weight float64, distance int) error {
                        if weight <= 0 || distance <= 0 {
                            return errors.New("invalid parameters")
                        }
                        if weight > 100 {
                            return errors.New("weight exceeds limit")
                        }
                        return nil
                    },
                )

            // 轻量近距离
            cost1, err1 := service.GetShippingCost(3.0, 50)
            assert.NoError(t, err1)
            assert.Equal(t, 10.0, cost1)

            // 重量远距离
            cost2, err2 := service.GetShippingCost(10.0, 200)
            assert.NoError(t, err2)
            assert.Equal(t, 30.0, cost2) // 10 + (10-5)*2 + (200-100)*0.1

            // 无效参数
            _, err3 := service.GetShippingCost(0, 100)
            assert.Error(t, err3)

            // 超重
            _, err4 := service.GetShippingCost(150, 50)
            assert.Error(t, err4)

            service.AssertExpectations(t)
        }

        func TestPromoCodeReturn(t *testing.T) {
            service := new(MockDiscountService)

            // 模拟促销码验证和折扣计算
            validCodes := map[string]float64{
                "SAVE10":  0.9,
                "SAVE20":  0.8,
                "SPECIAL": 0.7,
            }

            service.On("ApplyPromo", mock.AnythingOfType("string"), mock.Anything).
                Return(
                    func(code string, amount float64) float64 {
                        if discount, ok := validCodes[code]; ok {
                            return amount * discount
                        }
                        return amount
                    },
                    func(code string, amount float64) error {
                        if _, ok := validCodes[code]; !ok {
                            return errors.New("invalid promo code")
                        }
                        if amount < 50 {
                            return errors.New("minimum amount not met")
                        }
                        return nil
                    },
                )

            // 有效促销码
            price1, err1 := service.ApplyPromo("SAVE10", 100)
            assert.NoError(t, err1)
            assert.Equal(t, 90.0, price1)

            // 无效促销码
            _, err2 := service.ApplyPromo("INVALID", 100)
            assert.Error(t, err2)

            // 金额不足
            _, err3 := service.ApplyPromo("SAVE10", 30)
            assert.Error(t, err3)

            service.AssertExpectations(t)
        }
        ---

04.返回值序列
    a.多次调用不同返回值
        有时需要同一方法在不同调用时返回不同的值。可以使用多个On调用配合Once()来实现。第一次调用匹配第一个期望,第二次匹配第二个,依此类推。这对于模拟状态变化很有用。
    b.状态机模拟
        通过闭包捕获状态变量,可以在Return函数中实现状态机。每次调用根据当前状态返回值并更新状态。这能模拟复杂的有状态服务,如连接池、会话管理等。
    c.代码示例
        ---
        // 返回值序列和状态管理
        package returnsequence

        import (
            "errors"
            "testing"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        type ConnectionService interface {
            Connect() error
            GetStatus() string
            Read() (string, error)
        }

        type MockConnectionService struct {
            mock.Mock
        }

        func (m *MockConnectionService) Connect() error {
            args := m.Called()
            return args.Error(0)
        }

        func (m *MockConnectionService) GetStatus() string {
            args := m.Called()
            return args.String(0)
        }

        func (m *MockConnectionService) Read() (string, error) {
            args := m.Called()
            return args.String(0), args.Error(1)
        }

        func TestSequentialReturns(t *testing.T) {
            service := new(MockConnectionService)

            // 第一次调用返回错误,第二次成功
            service.On("Connect").Return(errors.New("connection failed")).Once()
            service.On("Connect").Return(nil).Once()

            // 第一次连接失败
            err1 := service.Connect()
            assert.Error(t, err1)

            // 第二次连接成功
            err2 := service.Connect()
            assert.NoError(t, err2)

            service.AssertExpectations(t)
        }

        func TestStatusStateMachine(t *testing.T) {
            service := new(MockConnectionService)

            // 模拟连接状态转换:disconnected -> connecting -> connected
            states := []string{"disconnected", "connecting", "connected"}
            currentState := 0

            service.On("GetStatus").
                Return(func() string {
                    if currentState < len(states) {
                        state := states[currentState]
                        currentState++
                        return state
                    }
                    return states[len(states)-1]
                })

            assert.Equal(t, "disconnected", service.GetStatus())
            assert.Equal(t, "connecting", service.GetStatus())
            assert.Equal(t, "connected", service.GetStatus())
            assert.Equal(t, "connected", service.GetStatus()) // 保持在最后状态

            service.AssertExpectations(t)
        }

        func TestDataStreamSimulation(t *testing.T) {
            service := new(MockConnectionService)

            // 模拟数据流:返回一系列数据,然后EOF
            dataStream := []string{"data1", "data2", "data3"}
            index := 0

            service.On("Read").
                Return(
                    func() string {
                        if index < len(dataStream) {
                            data := dataStream[index]
                            index++
                            return data
                        }
                        return ""
                    },
                    func() error {
                        if index > len(dataStream) {
                            return errors.New("EOF")
                        }
                        return nil
                    },
                )

            // 读取数据流
            data1, err1 := service.Read()
            assert.NoError(t, err1)
            assert.Equal(t, "data1", data1)

            data2, err2 := service.Read()
            assert.NoError(t, err2)
            assert.Equal(t, "data2", data2)

            data3, err3 := service.Read()
            assert.NoError(t, err3)
            assert.Equal(t, "data3", data3)

            // EOF
            _, err4 := service.Read()
            assert.Error(t, err4)
            assert.Equal(t, "EOF", err4.Error())

            service.AssertExpectations(t)
        }

        func TestRetryPattern(t *testing.T) {
            type RetryService interface {
                TryOperation() (bool, error)
            }

            type MockRetryService struct {
                mock.Mock
            }

            func (m *MockRetryService) TryOperation() (bool, error) {
                args := m.Called()
                return args.Bool(0), args.Error(1)
            }

            service := new(MockRetryService)

            // 模拟重试:前两次失败,第三次成功
            attemptCount := 0

            service.On("TryOperation").
                Return(
                    func() bool {
                        attemptCount++
                        return attemptCount >= 3
                    },
                    func() error {
                        if attemptCount < 3 {
                            return errors.New("temporary failure")
                        }
                        return nil
                    },
                )

            // 第一次尝试
            success1, err1 := service.TryOperation()
            assert.False(t, success1)
            assert.Error(t, err1)

            // 第二次尝试
            success2, err2 := service.TryOperation()
            assert.False(t, success2)
            assert.Error(t, err2)

            // 第三次尝试成功
            success3, err3 := service.TryOperation()
            assert.True(t, success3)
            assert.NoError(t, err3)

            service.AssertExpectations(t)
        }
        ---

4.5 调用验证

01.AssertExpectations基础
    a.验证原理
        AssertExpectations验证所有通过On方法设置的期望是否都被满足。它检查方法是否被调用、调用次数是否正确、参数是否匹配。如果有未满足的期望,测试会失败并报告详细信息。这是Mock验证的核心方法。
    b.使用时机
        通常在测试结束时调用AssertExpectations。它接收*testing.T参数,用于报告失败。如果忘记调用此方法,即使Mock期望未满足,测试也可能通过,导致假阳性。建议每个使用Mock的测试都调用此方法。
    c.代码示例
        ---
        // AssertExpectations基础
        package assertbasic

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        type NotificationService interface {
            SendEmail(to, subject, body string) error
            SendSMS(phone, message string) error
            LogEvent(event string)
        }

        type MockNotificationService struct {
            mock.Mock
        }

        func (m *MockNotificationService) SendEmail(to, subject, body string) error {
            args := m.Called(to, subject, body)
            return args.Error(0)
        }

        func (m *MockNotificationService) SendSMS(phone, message string) error {
            args := m.Called(phone, message)
            return args.Error(0)
        }

        func (m *MockNotificationService) LogEvent(event string) {
            m.Called(event)
        }

        func TestAssertExpectationsSuccess(t *testing.T) {
            service := new(MockNotificationService)

            // 设置期望
            service.On("SendEmail", "user@example.com", "Welcome", "Hello!").
                Return(nil)

            // 执行调用
            err := service.SendEmail("user@example.com", "Welcome", "Hello!")
            assert.NoError(t, err)

            // 验证期望
            service.AssertExpectations(t)
        }

        func TestAssertExpectationsMultiple(t *testing.T) {
            service := new(MockNotificationService)

            // 设置多个期望
            service.On("SendEmail", mock.Anything, mock.Anything, mock.Anything).
                Return(nil).Once()
            service.On("SendSMS", mock.Anything, mock.Anything).
                Return(nil).Once()
            service.On("LogEvent", "notification_sent").Once()

            // 执行所有调用
            service.SendEmail("user@example.com", "Test", "Body")
            service.SendSMS("1234567890", "Test SMS")
            service.LogEvent("notification_sent")

            // 所有期望都满足
            service.AssertExpectations(t)
        }

        func TestAssertExpectationsWithTimes(t *testing.T) {
            service := new(MockNotificationService)

            // 期望被调用3次
            service.On("LogEvent", "event").Times(3)

            // 调用3次
            service.LogEvent("event")
            service.LogEvent("event")
            service.LogEvent("event")

            // 验证通过
            service.AssertExpectations(t)
        }

        func TestAssertExpectationsMaybe(t *testing.T) {
            service := new(MockNotificationService)

            // Maybe期望:调用或不调用都不会失败
            service.On("SendEmail", mock.Anything, mock.Anything, mock.Anything).
                Return(nil).Maybe()

            // 不调用也能通过验证
            service.AssertExpectations(t)
        }

        func TestAssertExpectationsMaybeWithCall(t *testing.T) {
            service := new(MockNotificationService)

            service.On("LogEvent", "optional").Maybe()

            // 调用了也能通过
            service.LogEvent("optional")
            service.AssertExpectations(t)
        }
        ---

02.AssertCalled方法
    a.方法功能
        AssertCalled验证指定的方法是否被调用过,参数必须匹配。与AssertExpectations不同,它用于事后检查,不需要预先设置期望。适用于只关心方法是否被调用,不关心返回值的场景。
    b.AssertNotCalled
        AssertNotCalled验证指定的方法没有被调用。这对于测试某些代码路径不应执行特定操作很有用。例如验证在缓存命中时不应访问数据库。
    c.代码示例
        ---
        // AssertCalled和AssertNotCalled
        package assertcalled

        import (
            "testing"
            "github.com/stretchr/testify/mock"
        )

        type CacheService interface {
            Get(key string) (string, bool)
            Set(key, value string)
            Delete(key string)
        }

        type MockCacheService struct {
            mock.Mock
        }

        func (m *MockCacheService) Get(key string) (string, bool) {
            args := m.Called(key)
            return args.String(0), args.Bool(1)
        }

        func (m *MockCacheService) Set(key, value string) {
            m.Called(key, value)
        }

        func (m *MockCacheService) Delete(key string) {
            m.Called(key)
        }

        type DatabaseService interface {
            Query(sql string) (string, error)
            Execute(sql string) error
        }

        type MockDatabaseService struct {
            mock.Mock
        }

        func (m *MockDatabaseService) Query(sql string) (string, error) {
            args := m.Called(sql)
            return args.String(0), args.Error(1)
        }

        func (m *MockDatabaseService) Execute(sql string) error {
            args := m.Called(sql)
            return args.Error(0)
        }

        func TestAssertCalled(t *testing.T) {
            cache := new(MockCacheService)

            // 不需要预设期望
            cache.On("Get", "key1").Return("value1", true)
            cache.On("Set", "key2", "value2").Return()

            // 执行调用
            cache.Get("key1")
            cache.Set("key2", "value2")

            // 验证方法被调用
            cache.AssertCalled(t, "Get", "key1")
            cache.AssertCalled(t, "Set", "key2", "value2")
        }

        func TestAssertNotCalled(t *testing.T) {
            cache := new(MockCacheService)
            db := new(MockDatabaseService)

            // 模拟缓存命中场景
            cache.On("Get", "user:123").Return("Alice", true)
            db.On("Query", mock.Anything).Return("Alice", nil)

            // 从缓存获取数据
            value, hit := cache.Get("user:123")
            if hit {
                // 缓存命中,不查询数据库
                _ = value
            } else {
                db.Query("SELECT name FROM users WHERE id=123")
            }

            // 验证数据库没有被调用
            db.AssertNotCalled(t, "Query", mock.Anything)

            // 验证缓存被调用
            cache.AssertCalled(t, "Get", "user:123")
        }

        func TestAssertCalledTimes(t *testing.T) {
            cache := new(MockCacheService)

            cache.On("Set", mock.Anything, mock.Anything).Return()

            // 调用3次
            cache.Set("key1", "val1")
            cache.Set("key2", "val2")
            cache.Set("key3", "val3")

            // 验证具体调用
            cache.AssertCalled(t, "Set", "key1", "val1")
            cache.AssertCalled(t, "Set", "key2", "val2")
            cache.AssertCalled(t, "Set", "key3", "val3")
        }

        func TestConditionalCalls(t *testing.T) {
            cache := new(MockCacheService)
            db := new(MockDatabaseService)

            // 设置期望
            cache.On("Get", "config").Return("", false) // 缓存未命中
            db.On("Query", "SELECT value FROM config WHERE key='config'").
                Return("config_value", nil)
            cache.On("Set", "config", "config_value").Return()

            // 先查缓存
            value, hit := cache.Get("config")
            if !hit {
                // 未命中,查数据库
                value, _ = db.Query("SELECT value FROM config WHERE key='config'")
                // 写入缓存
                cache.Set("config", value)
            }

            // 验证调用链
            cache.AssertCalled(t, "Get", "config")
            db.AssertCalled(t, "Query", "SELECT value FROM config WHERE key='config'")
            cache.AssertCalled(t, "Set", "config", "config_value")
        }
        ---

03.NumberOfCalls验证
    a.获取调用次数
        NumberOfCalls返回指定方法被调用的次数。它接收方法名和参数,返回匹配该签名的调用次数。这允许更精细的调用次数验证,不会导致测试失败,只是返回数字。
    b.AssertNumberOfCalls
        AssertNumberOfCalls断言方法被调用了指定的次数。它比On().Times()更灵活,可以在调用后验证而不需要预先设置。适用于验证循环、批处理等场景的调用次数。
    c.代码示例
        ---
        // 调用次数验证
        package callcount

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        type LoggerService interface {
            Debug(msg string)
            Info(msg string)
            Warn(msg string)
            Error(msg string)
        }

        type MockLoggerService struct {
            mock.Mock
        }

        func (m *MockLoggerService) Debug(msg string) {
            m.Called(msg)
        }

        func (m *MockLoggerService) Info(msg string) {
            m.Called(msg)
        }

        func (m *MockLoggerService) Warn(msg string) {
            m.Called(msg)
        }

        func (m *MockLoggerService) Error(msg string) {
            m.Called(msg)
        }

        func TestNumberOfCalls(t *testing.T) {
            logger := new(MockLoggerService)

            logger.On("Info", mock.Anything).Return()
            logger.On("Error", mock.Anything).Return()

            // 执行多次调用
            logger.Info("Start")
            logger.Info("Processing")
            logger.Info("Done")
            logger.Error("Failed")

            // 获取调用次数
            infoCount := logger.NumberOfCalls("Info", mock.Anything)
            errorCount := logger.NumberOfCalls("Error", mock.Anything)

            assert.Equal(t, 3, infoCount)
            assert.Equal(t, 1, errorCount)
        }

        func TestAssertNumberOfCalls(t *testing.T) {
            logger := new(MockLoggerService)

            logger.On("Debug", mock.Anything).Return()

            // 调用5次
            for i := 0; i < 5; i++ {
                logger.Debug("debug message")
            }

            // 断言调用次数
            logger.AssertNumberOfCalls(t, "Debug", 5)
        }

        func TestBatchProcessing(t *testing.T) {
            type BatchProcessor interface {
                Process(item string) error
            }

            type MockBatchProcessor struct {
                mock.Mock
            }

            func (m *MockBatchProcessor) Process(item string) error {
                args := m.Called(item)
                return args.Error(0)
            }

            processor := new(MockBatchProcessor)
            processor.On("Process", mock.Anything).Return(nil)

            // 批处理多个项目
            items := []string{"item1", "item2", "item3", "item4", "item5"}
            for _, item := range items {
                processor.Process(item)
            }

            // 验证处理了所有项目
            count := processor.NumberOfCalls("Process", mock.Anything)
            assert.Equal(t, len(items), count)

            logger.AssertNumberOfCalls(t, "Process", 5)
        }

        func TestConditionalLogging(t *testing.T) {
            logger := new(MockLoggerService)

            logger.On("Info", mock.Anything).Return()
            logger.On("Warn", mock.Anything).Return()
            logger.On("Error", mock.Anything).Return()

            // 模拟不同级别的日志
            errors := []string{"error1", "error2"}
            warnings := []string{"warn1"}
            infos := []string{"info1", "info2", "info3", "info4"}

            for _, e := range errors {
                logger.Error(e)
            }
            for _, w := range warnings {
                logger.Warn(w)
            }
            for _, i := range infos {
                logger.Info(i)
            }

            // 验证各级别的调用次数
            logger.AssertNumberOfCalls(t, "Error", 2)
            logger.AssertNumberOfCalls(t, "Warn", 1)
            logger.AssertNumberOfCalls(t, "Info", 4)

            // 总调用次数
            totalCalls := logger.NumberOfCalls("Error", mock.Anything) +
                logger.NumberOfCalls("Warn", mock.Anything) +
                logger.NumberOfCalls("Info", mock.Anything)
            assert.Equal(t, 7, totalCalls)
        }
        ---

04.调用顺序验证
    a.顺序的重要性
        某些场景下方法调用顺序很重要,如初始化流程、事务操作、资源管理等。testify本身不直接支持顺序验证,但可以通过Run方法和外部计数器实现。验证顺序确保代码按预期的步骤执行。
    b.实现顺序验证
        使用Run方法捕获调用时间或序号,记录到外部变量。在测试结束时检查记录的顺序是否符合预期。这种方式虽然需要额外代码,但提供了完全的控制和灵活性。
    c.代码示例
        ---
        // 调用顺序验证
        package callorder

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        type ResourceManager interface {
            Acquire() error
            Use() error
            Release() error
        }

        type MockResourceManager struct {
            mock.Mock
        }

        func (m *MockResourceManager) Acquire() error {
            args := m.Called()
            return args.Error(0)
        }

        func (m *MockResourceManager) Use() error {
            args := m.Called()
            return args.Error(0)
        }

        func (m *MockResourceManager) Release() error {
            args := m.Called()
            return args.Error(0)
        }

        func TestCallOrder(t *testing.T) {
            manager := new(MockResourceManager)

            callOrder := []string{}

            // 使用Run记录调用顺序
            manager.On("Acquire").Run(func(args mock.Arguments) {
                callOrder = append(callOrder, "Acquire")
            }).Return(nil)

            manager.On("Use").Run(func(args mock.Arguments) {
                callOrder = append(callOrder, "Use")
            }).Return(nil)

            manager.On("Release").Run(func(args mock.Arguments) {
                callOrder = append(callOrder, "Release")
            }).Return(nil)

            // 按顺序执行
            manager.Acquire()
            manager.Use()
            manager.Release()

            // 验证顺序
            expectedOrder := []string{"Acquire", "Use", "Release"}
            assert.Equal(t, expectedOrder, callOrder)

            manager.AssertExpectations(t)
        }

        func TestTransactionOrder(t *testing.T) {
            type TransactionManager interface {
                Begin() error
                Execute(sql string) error
                Commit() error
                Rollback() error
            }

            type MockTransactionManager struct {
                mock.Mock
            }

            func (m *MockTransactionManager) Begin() error {
                args := m.Called()
                return args.Error(0)
            }

            func (m *MockTransactionManager) Execute(sql string) error {
                args := m.Called(sql)
                return args.Error(0)
            }

            func (m *MockTransactionManager) Commit() error {
                args := m.Called()
                return args.Error(0)
            }

            func (m *MockTransactionManager) Rollback() error {
                args := m.Called()
                return args.Error(0)
            }

            tm := new(MockTransactionManager)

            sequence := 0
            callSequence := make(map[string]int)

            // 记录每个方法的调用序号
            tm.On("Begin").Run(func(args mock.Arguments) {
                sequence++
                callSequence["Begin"] = sequence
            }).Return(nil)

            tm.On("Execute", mock.Anything).Run(func(args mock.Arguments) {
                sequence++
                callSequence["Execute"] = sequence
            }).Return(nil)

            tm.On("Commit").Run(func(args mock.Arguments) {
                sequence++
                callSequence["Commit"] = sequence
            }).Return(nil)

            // 执行事务
            tm.Begin()
            tm.Execute("INSERT INTO users VALUES(1, 'Alice')")
            tm.Commit()

            // 验证调用顺序
            assert.Less(t, callSequence["Begin"], callSequence["Execute"])
            assert.Less(t, callSequence["Execute"], callSequence["Commit"])

            tm.AssertExpectations(t)
        }

        func TestInitializationOrder(t *testing.T) {
            type Initializer interface {
                LoadConfig() error
                ConnectDB() error
                StartServer() error
            }

            type MockInitializer struct {
                mock.Mock
            }

            func (m *MockInitializer) LoadConfig() error {
                args := m.Called()
                return args.Error(0)
            }

            func (m *MockInitializer) ConnectDB() error {
                args := m.Called()
                return args.Error(0)
            }

            func (m *MockInitializer) StartServer() error {
                args := m.Called()
                return args.Error(0)
            }

            init := new(MockInitializer)

            operations := []string{}

            init.On("LoadConfig").Run(func(args mock.Arguments) {
                operations = append(operations, "LoadConfig")
            }).Return(nil)

            init.On("ConnectDB").Run(func(args mock.Arguments) {
                // 验证LoadConfig已经被调用
                assert.Contains(t, operations, "LoadConfig",
                    "ConnectDB should be called after LoadConfig")
                operations = append(operations, "ConnectDB")
            }).Return(nil)

            init.On("StartServer").Run(func(args mock.Arguments) {
                // 验证前两步已完成
                assert.Contains(t, operations, "LoadConfig")
                assert.Contains(t, operations, "ConnectDB")
                operations = append(operations, "StartServer")
            }).Return(nil)

            // 按正确顺序初始化
            init.LoadConfig()
            init.ConnectDB()
            init.StartServer()

            // 验证最终顺序
            expected := []string{"LoadConfig", "ConnectDB", "StartServer"}
            assert.Equal(t, expected, operations)

            init.AssertExpectations(t)
        }
        ---

4.6 Mock接口

01.接口设计原则
    a.小接口优于大接口
        设计接口时应遵循接口隔离原则,创建小而专注的接口而不是大而全的接口。小接口更容易Mock,测试更清晰,依赖更明确。Go的隐式接口实现使得可以为不同测试场景定义不同的小接口。
    b.面向测试的接口
        在设计生产代码时考虑可测试性。将依赖定义为接口而不是具体类型。接口应该只包含业务逻辑需要的方法。避免依赖难以Mock的类型如全局变量、单例、静态方法等。
    c.代码示例
        ---
        // 接口设计最佳实践
        package interfacedesign

        import (
            "context"
            "testing"
            "time"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        // ❌ 错误:接口太大,包含过多方法
        type BadUserService interface {
            Create(user User) error
            Update(user User) error
            Delete(id int) error
            GetByID(id int) (*User, error)
            GetByEmail(email string) (*User, error)
            List(offset, limit int) ([]*User, error)
            Count() (int, error)
            Authenticate(email, password string) (bool, error)
            ResetPassword(email string) error
            SendEmail(to, subject, body string) error
            LogActivity(userID int, action string) error
        }

        // ✅ 正确:拆分成多个小接口
        type UserRepository interface {
            Create(user User) error
            Update(user User) error
            Delete(id int) error
            GetByID(id int) (*User, error)
            GetByEmail(email string) (*User, error)
        }

        type UserQueryService interface {
            List(offset, limit int) ([]*User, error)
            Count() (int, error)
        }

        type AuthService interface {
            Authenticate(email, password string) (bool, error)
            ResetPassword(email string) error
        }

        type NotificationService interface {
            SendEmail(to, subject, body string) error
        }

        type ActivityLogger interface {
            LogActivity(userID int, action string) error
        }

        // User结构体
        type User struct {
            ID    int
            Email string
            Name  string
        }

        // 业务逻辑:使用小接口组合
        type UserManager struct {
            repo   UserRepository
            auth   AuthService
            notify NotificationService
            logger ActivityLogger
        }

        func NewUserManager(repo UserRepository, auth AuthService,
            notify NotificationService, logger ActivityLogger) *UserManager {
            return &UserManager{
                repo:   repo,
                auth:   auth,
                notify: notify,
                logger: logger,
            }
        }

        func (m *UserManager) CreateUser(user User) error {
            // 创建用户
            if err := m.repo.Create(user); err != nil {
                return err
            }

            // 发送欢迎邮件
            m.notify.SendEmail(user.Email, "Welcome", "Welcome to our service!")

            // 记录活动
            m.logger.LogActivity(user.ID, "user_created")

            return nil
        }

        // Mock实现
        type MockUserRepository struct {
            mock.Mock
        }

        func (m *MockUserRepository) Create(user User) error {
            args := m.Called(user)
            return args.Error(0)
        }

        func (m *MockUserRepository) Update(user User) error {
            args := m.Called(user)
            return args.Error(0)
        }

        func (m *MockUserRepository) Delete(id int) error {
            args := m.Called(id)
            return args.Error(0)
        }

        func (m *MockUserRepository) GetByID(id int) (*User, error) {
            args := m.Called(id)
            if args.Get(0) == nil {
                return nil, args.Error(1)
            }
            return args.Get(0).(*User), args.Error(1)
        }

        func (m *MockUserRepository) GetByEmail(email string) (*User, error) {
            args := m.Called(email)
            if args.Get(0) == nil {
                return nil, args.Error(1)
            }
            return args.Get(0).(*User), args.Error(1)
        }

        type MockAuthService struct {
            mock.Mock
        }

        func (m *MockAuthService) Authenticate(email, password string) (bool, error) {
            args := m.Called(email, password)
            return args.Bool(0), args.Error(1)
        }

        func (m *MockAuthService) ResetPassword(email string) error {
            args := m.Called(email)
            return args.Error(0)
        }

        type MockNotificationService struct {
            mock.Mock
        }

        func (m *MockNotificationService) SendEmail(to, subject, body string) error {
            args := m.Called(to, subject, body)
            return args.Error(0)
        }

        type MockActivityLogger struct {
            mock.Mock
        }

        func (m *MockActivityLogger) LogActivity(userID int, action string) error {
            args := m.Called(userID, action)
            return args.Error(0)
        }

        // 测试:只需要Mock相关的接口
        func TestCreateUser(t *testing.T) {
            repo := new(MockUserRepository)
            auth := new(MockAuthService)
            notify := new(MockNotificationService)
            logger := new(MockActivityLogger)

            manager := NewUserManager(repo, auth, notify, logger)

            user := User{ID: 1, Email: "test@example.com", Name: "Test"}

            // 只设置需要的期望
            repo.On("Create", user).Return(nil)
            notify.On("SendEmail", user.Email, "Welcome", mock.Anything).Return(nil)
            logger.On("LogActivity", user.ID, "user_created").Return(nil)

            err := manager.CreateUser(user)

            assert.NoError(t, err)
            repo.AssertExpectations(t)
            notify.AssertExpectations(t)
            logger.AssertExpectations(t)
        }
        ---

02.依赖注入模式
    a.构造函数注入
        通过构造函数传入依赖接口是最推荐的方式。依赖在对象创建时就确定,不可变,线程安全。测试时可以轻松注入Mock对象。构造函数应该只接收接口类型,不接收具体实现。
    b.方法注入
        某些情况下可以通过方法参数传入依赖。这适用于依赖只在特定操作中使用的场景。方法注入比构造函数注入更灵活,但也增加了方法签名的复杂度。
    c.代码示例
        ---
        // 依赖注入模式
        package dependencyinjection

        import (
            "context"
            "testing"
            "time"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        // 依赖接口定义
        type Clock interface {
            Now() time.Time
        }

        type IDGenerator interface {
            NextID() int64
        }

        type Repository interface {
            Save(ctx context.Context, data interface{}) error
        }

        // 构造函数注入示例
        type OrderService struct {
            clock Clock
            idGen IDGenerator
            repo  Repository
        }

        func NewOrderService(clock Clock, idGen IDGenerator, repo Repository) *OrderService {
            return &OrderService{
                clock: clock,
                idGen: idGen,
                repo:  repo,
            }
        }

        func (s *OrderService) CreateOrder(ctx context.Context, amount float64) error {
            order := Order{
                ID:        s.idGen.NextID(),
                Amount:    amount,
                CreatedAt: s.clock.Now(),
            }
            return s.repo.Save(ctx, order)
        }

        type Order struct {
            ID        int64
            Amount    float64
            CreatedAt time.Time
        }

        // 方法注入示例
        type ReportGenerator struct{}

        func (g *ReportGenerator) Generate(ctx context.Context, fetcher DataFetcher) (*Report, error) {
            data, err := fetcher.Fetch(ctx)
            if err != nil {
                return nil, err
            }
            return &Report{Data: data}, nil
        }

        type DataFetcher interface {
            Fetch(ctx context.Context) ([]byte, error)
        }

        type Report struct {
            Data []byte
        }

        // Mock实现
        type MockClock struct {
            mock.Mock
        }

        func (m *MockClock) Now() time.Time {
            args := m.Called()
            return args.Get(0).(time.Time)
        }

        type MockIDGenerator struct {
            mock.Mock
        }

        func (m *MockIDGenerator) NextID() int64 {
            args := m.Called()
            return args.Get(0).(int64)
        }

        type MockRepository struct {
            mock.Mock
        }

        func (m *MockRepository) Save(ctx context.Context, data interface{}) error {
            args := m.Called(ctx, data)
            return args.Error(0)
        }

        type MockDataFetcher struct {
            mock.Mock
        }

        func (m *MockDataFetcher) Fetch(ctx context.Context) ([]byte, error) {
            args := m.Called(ctx)
            return args.Get(0).([]byte), args.Error(1)
        }

        // 测试构造函数注入
        func TestConstructorInjection(t *testing.T) {
            clock := new(MockClock)
            idGen := new(MockIDGenerator)
            repo := new(MockRepository)

            service := NewOrderService(clock, idGen, repo)

            ctx := context.Background()
            fixedTime := time.Date(2024, 1, 1, 0, 0, 0, 0, time.UTC)

            // 设置期望
            idGen.On("NextID").Return(int64(12345))
            clock.On("Now").Return(fixedTime)
            repo.On("Save", ctx, mock.MatchedBy(func(o interface{}) bool {
                order, ok := o.(Order)
                return ok && order.ID == 12345 && order.Amount == 99.99
            })).Return(nil)

            // 执行
            err := service.CreateOrder(ctx, 99.99)

            // 验证
            assert.NoError(t, err)
            clock.AssertExpectations(t)
            idGen.AssertExpectations(t)
            repo.AssertExpectations(t)
        }

        // 测试方法注入
        func TestMethodInjection(t *testing.T) {
            generator := &ReportGenerator{}
            fetcher := new(MockDataFetcher)

            ctx := context.Background()
            expectedData := []byte("report data")

            fetcher.On("Fetch", ctx).Return(expectedData, nil)

            report, err := generator.Generate(ctx, fetcher)

            assert.NoError(t, err)
            assert.Equal(t, expectedData, report.Data)
            fetcher.AssertExpectations(t)
        }

        // 工厂模式结合依赖注入
        type ServiceFactory struct {
            clock Clock
            repo  Repository
        }

        func NewServiceFactory(clock Clock, repo Repository) *ServiceFactory {
            return &ServiceFactory{clock: clock, repo: repo}
        }

        func (f *ServiceFactory) CreateOrderService(idGen IDGenerator) *OrderService {
            return NewOrderService(f.clock, idGen, f.repo)
        }

        func TestFactoryPattern(t *testing.T) {
            clock := new(MockClock)
            repo := new(MockRepository)
            idGen := new(MockIDGenerator)

            factory := NewServiceFactory(clock, repo)
            service := factory.CreateOrderService(idGen)

            ctx := context.Background()
            fixedTime := time.Now()

            clock.On("Now").Return(fixedTime)
            idGen.On("NextID").Return(int64(999))
            repo.On("Save", ctx, mock.Anything).Return(nil)

            err := service.CreateOrder(ctx, 50.0)

            assert.NoError(t, err)
        }
        ---

03.接口适配器
    a.适配器模式
        当需要Mock第三方库或标准库时,可以创建适配器接口。适配器包装原始类型,提供可测试的接口。这遵循依赖倒置原则,使代码不直接依赖具体实现。
    b.标准库封装
        对于time、os、http等标准库,可以定义接口进行封装。这使得依赖时间、文件系统、网络的代码变得可测试。适配器接口应该简洁,只暴露需要的方法。
    c.代码示例
        ---
        // 接口适配器
        package adapter

        import (
            "io"
            "os"
            "testing"
            "time"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        // 时间适配器
        type TimeProvider interface {
            Now() time.Time
            Sleep(d time.Duration)
        }

        type RealTimeProvider struct{}

        func (r *RealTimeProvider) Now() time.Time {
            return time.Now()
        }

        func (r *RealTimeProvider) Sleep(d time.Duration) {
            time.Sleep(d)
        }

        // 文件系统适配器
        type FileSystem interface {
            ReadFile(path string) ([]byte, error)
            WriteFile(path string, data []byte) error
            Exists(path string) bool
        }

        type RealFileSystem struct{}

        func (f *RealFileSystem) ReadFile(path string) ([]byte, error) {
            return os.ReadFile(path)
        }

        func (f *RealFileSystem) WriteFile(path string, data []byte) error {
            return os.WriteFile(path, data, 0644)
        }

        func (f *RealFileSystem) Exists(path string) bool {
            _, err := os.Stat(path)
            return err == nil
        }

        // HTTP客户端适配器
        type HTTPClient interface {
            Get(url string) ([]byte, error)
            Post(url string, body io.Reader) ([]byte, error)
        }

        type RealHTTPClient struct {
            // 可以包装 *http.Client
        }

        func (h *RealHTTPClient) Get(url string) ([]byte, error) {
            // 实际HTTP请求
            return nil, nil
        }

        func (h *RealHTTPClient) Post(url string, body io.Reader) ([]byte, error) {
            // 实际HTTP请求
            return nil, nil
        }

        // 使用适配器的业务逻辑
        type DataSync struct {
            time TimeProvider
            fs   FileSystem
            http HTTPClient
        }

        func NewDataSync(time TimeProvider, fs FileSystem, http HTTPClient) *DataSync {
            return &DataSync{time: time, fs: fs, http: http}
        }

        func (s *DataSync) SyncData(url string, localPath string) error {
            // 检查本地文件是否存在
            if s.fs.Exists(localPath) {
                return nil
            }

            // 从远程获取数据
            data, err := s.http.Get(url)
            if err != nil {
                return err
            }

            // 写入本地
            return s.fs.WriteFile(localPath, data)
        }

        // Mock实现
        type MockTimeProvider struct {
            mock.Mock
        }

        func (m *MockTimeProvider) Now() time.Time {
            args := m.Called()
            return args.Get(0).(time.Time)
        }

        func (m *MockTimeProvider) Sleep(d time.Duration) {
            m.Called(d)
        }

        type MockFileSystem struct {
            mock.Mock
        }

        func (m *MockFileSystem) ReadFile(path string) ([]byte, error) {
            args := m.Called(path)
            return args.Get(0).([]byte), args.Error(1)
        }

        func (m *MockFileSystem) WriteFile(path string, data []byte) error {
            args := m.Called(path, data)
            return args.Error(0)
        }

        func (m *MockFileSystem) Exists(path string) bool {
            args := m.Called(path)
            return args.Bool(0)
        }

        type MockHTTPClient struct {
            mock.Mock
        }

        func (m *MockHTTPClient) Get(url string) ([]byte, error) {
            args := m.Called(url)
            return args.Get(0).([]byte), args.Error(1)
        }

        func (m *MockHTTPClient) Post(url string, body io.Reader) ([]byte, error) {
            args := m.Called(url, body)
            return args.Get(0).([]byte), args.Error(1)
        }

        // 测试
        func TestDataSync(t *testing.T) {
            timeProvider := new(MockTimeProvider)
            fs := new(MockFileSystem)
            httpClient := new(MockHTTPClient)

            sync := NewDataSync(timeProvider, fs, httpClient)

            url := "https://api.example.com/data"
            localPath := "/tmp/data.json"
            expectedData := []byte(`{"key":"value"}`)

            // 文件不存在,需要下载
            fs.On("Exists", localPath).Return(false)
            httpClient.On("Get", url).Return(expectedData, nil)
            fs.On("WriteFile", localPath, expectedData).Return(nil)

            err := sync.SyncData(url, localPath)

            assert.NoError(t, err)
            fs.AssertExpectations(t)
            httpClient.AssertExpectations(t)
        }

        func TestDataSyncFileExists(t *testing.T) {
            fs := new(MockFileSystem)
            httpClient := new(MockHTTPClient)

            sync := NewDataSync(&RealTimeProvider{}, fs, httpClient)

            localPath := "/tmp/data.json"

            // 文件已存在,不需要下载
            fs.On("Exists", localPath).Return(true)

            err := sync.SyncData("https://api.example.com/data", localPath)

            assert.NoError(t, err)
            fs.AssertExpectations(t)
            // HTTP客户端不应该被调用
            httpClient.AssertNotCalled(t, "Get", mock.Anything)
        }
        ---

04.接口组合
    a.组合多个接口
        Go支持接口组合,可以将多个小接口组合成大接口。这提供了灵活性,可以根据需要使用小接口或组合接口。测试时通常使用小接口,生产代码可以使用组合接口。
    b.条件依赖
        某些依赖可能是可选的。可以使用接口组合或者nil检查来实现可选依赖。Mock可选依赖时,可以传入nil或者使用Maybe()期望。
    c.代码示例
        ---
        // 接口组合
        package composition

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        // 基础接口
        type Reader interface {
            Read(key string) (string, error)
        }

        type Writer interface {
            Write(key, value string) error
        }

        type Deleter interface {
            Delete(key string) error
        }

        // 组合接口
        type ReadWriter interface {
            Reader
            Writer
        }

        type Storage interface {
            Reader
            Writer
            Deleter
        }

        // 可选功能接口
        type CacheInvalidator interface {
            InvalidateCache(key string)
        }

        // 业务逻辑:只依赖需要的接口
        type DataService struct {
            storage    ReadWriter  // 必需依赖
            invalidator CacheInvalidator // 可选依赖
        }

        func NewDataService(storage ReadWriter, invalidator CacheInvalidator) *DataService {
            return &DataService{
                storage:    storage,
                invalidator: invalidator,
            }
        }

        func (s *DataService) UpdateData(key, value string) error {
            // 写入数据
            if err := s.storage.Write(key, value); err != nil {
                return err
            }

            // 如果有缓存失效器,使用它
            if s.invalidator != nil {
                s.invalidator.InvalidateCache(key)
            }

            return nil
        }

        // Mock实现
        type MockReader struct {
            mock.Mock
        }

        func (m *MockReader) Read(key string) (string, error) {
            args := m.Called(key)
            return args.String(0), args.Error(1)
        }

        type MockWriter struct {
            mock.Mock
        }

        func (m *MockWriter) Write(key, value string) error {
            args := m.Called(key, value)
            return args.Error(0)
        }

        type MockReadWriter struct {
            MockReader
            MockWriter
        }

        type MockStorage struct {
            mock.Mock
        }

        func (m *MockStorage) Read(key string) (string, error) {
            args := m.Called(key)
            return args.String(0), args.Error(1)
        }

        func (m *MockStorage) Write(key, value string) error {
            args := m.Called(key, value)
            return args.Error(0)
        }

        func (m *MockStorage) Delete(key string) error {
            args := m.Called(key)
            return args.Error(0)
        }

        type MockCacheInvalidator struct {
            mock.Mock
        }

        func (m *MockCacheInvalidator) InvalidateCache(key string) {
            m.Called(key)
        }

        // 测试:使用组合Mock
        func TestWithCacheInvalidator(t *testing.T) {
            storage := new(MockStorage)
            invalidator := new(MockCacheInvalidator)

            service := NewDataService(storage, invalidator)

            storage.On("Write", "key1", "value1").Return(nil)
            invalidator.On("InvalidateCache", "key1").Return()

            err := service.UpdateData("key1", "value1")

            assert.NoError(t, err)
            storage.AssertExpectations(t)
            invalidator.AssertExpectations(t)
        }

        // 测试:不使用缓存失效器
        func TestWithoutCacheInvalidator(t *testing.T) {
            storage := new(MockStorage)

            service := NewDataService(storage, nil)

            storage.On("Write", "key1", "value1").Return(nil)

            err := service.UpdateData("key1", "value1")

            assert.NoError(t, err)
            storage.AssertExpectations(t)
        }

        // 分离的Mock测试
        func TestSeparateMocks(t *testing.T) {
            reader := new(MockReader)
            writer := new(MockWriter)

            // 创建组合Mock
            rw := &MockReadWriter{
                MockReader: *reader,
                MockWriter: *writer,
            }

            service := NewDataService(rw, nil)

            writer.On("Write", "test", "data").Return(nil)

            err := service.UpdateData("test", "data")

            assert.NoError(t, err)
            writer.AssertExpectations(t)
        }
        ---

4.7 最佳实践

01.Mock对象命名规范
    a.命名约定
        Mock结构体应该以Mock为前缀,后接接口名。例如接口UserService的Mock命名为MockUserService。这种命名清晰表明类型的用途,便于识别和维护。避免使用FakeUserService、StubUserService等容易混淆的名称。
    b.包组织
        Mock定义可以放在测试文件中,使用_test后缀。对于被多个测试包使用的Mock,可以创建独立的mock或testing子包。不要将Mock放在生产代码包中,保持生产代码的纯净性。
    c.代码示例
        ---
        // Mock命名和组织最佳实践
        package naming

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        // ✅ 正确:清晰的Mock命名
        type UserService interface {
            GetUser(id int) (*User, error)
            SaveUser(user *User) error
        }

        type MockUserService struct {
            mock.Mock
        }

        func (m *MockUserService) GetUser(id int) (*User, error) {
            args := m.Called(id)
            if args.Get(0) == nil {
                return nil, args.Error(1)
            }
            return args.Get(0).(*User), args.Error(1)
        }

        func (m *MockUserService) SaveUser(user *User) error {
            args := m.Called(user)
            return args.Error(0)
        }

        // ❌ 错误:命名不清晰
        type FakeUserService struct {
            mock.Mock
        }

        type StubUserService struct {
            mock.Mock
        }

        type TestUserService struct {
            mock.Mock
        }

        type User struct {
            ID   int
            Name string
        }

        // 组织方式1:Mock定义在测试文件中
        func TestUserServiceUsage(t *testing.T) {
            mockService := new(MockUserService)

            expectedUser := &User{ID: 1, Name: "Alice"}
            mockService.On("GetUser", 1).Return(expectedUser, nil)

            user, err := mockService.GetUser(1)

            assert.NoError(t, err)
            assert.Equal(t, expectedUser, user)
            mockService.AssertExpectations(t)
        }

        // 组织方式2:创建测试辅助函数
        func setupUserServiceMock(t *testing.T) *MockUserService {
            m := new(MockUserService)
            return m
        }

        func TestWithHelper(t *testing.T) {
            mockService := setupUserServiceMock(t)

            user := &User{ID: 2, Name: "Bob"}
            mockService.On("SaveUser", user).Return(nil)

            err := mockService.SaveUser(user)

            assert.NoError(t, err)
            mockService.AssertExpectations(t)
        }

        // 组织方式3:表格驱动测试中的Mock
        func TestTableDriven(t *testing.T) {
            tests := []struct {
                name        string
                userID      int
                setupMock   func(*MockUserService)
                expectError bool
            }{
                {
                    name:   "user found",
                    userID: 1,
                    setupMock: func(m *MockUserService) {
                        m.On("GetUser", 1).Return(&User{ID: 1, Name: "Alice"}, nil)
                    },
                    expectError: false,
                },
                {
                    name:   "user not found",
                    userID: 999,
                    setupMock: func(m *MockUserService) {
                        m.On("GetUser", 999).Return(nil, assert.AnError)
                    },
                    expectError: true,
                },
            }

            for _, tt := range tests {
                t.Run(tt.name, func(t *testing.T) {
                    mockService := new(MockUserService)
                    tt.setupMock(mockService)

                    _, err := mockService.GetUser(tt.userID)

                    if tt.expectError {
                        assert.Error(t, err)
                    } else {
                        assert.NoError(t, err)
                    }

                    mockService.AssertExpectations(t)
                })
            }
        }
        ---

02.测试隔离性
    a.每个测试独立Mock
        每个测试应该创建自己的Mock实例,不要在测试间共享Mock。共享Mock会导致状态污染,一个测试的期望影响另一个测试。子测试也应该创建独立的Mock。
    b.清理和重置
        testify的Mock不需要显式清理,每个测试创建新实例即可。避免使用全局Mock变量。如果必须使用同一个Mock运行多次,可以使用ExpectedCalls字段清空期望,但不推荐这种做法。
    c.代码示例
        ---
        // 测试隔离性最佳实践
        package isolation

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        type Calculator interface {
            Add(a, b int) int
            Multiply(a, b int) int
        }

        type MockCalculator struct {
            mock.Mock
        }

        func (m *MockCalculator) Add(a, b int) int {
            args := m.Called(a, b)
            return args.Int(0)
        }

        func (m *MockCalculator) Multiply(a, b int) int {
            args := m.Called(a, b)
            return args.Int(0)
        }

        // ✅ 正确:每个测试独立Mock
        func TestAddition(t *testing.T) {
            calc := new(MockCalculator)
            calc.On("Add", 2, 3).Return(5)

            result := calc.Add(2, 3)
            assert.Equal(t, 5, result)
            calc.AssertExpectations(t)
        }

        func TestMultiplication(t *testing.T) {
            calc := new(MockCalculator)
            calc.On("Multiply", 2, 3).Return(6)

            result := calc.Multiply(2, 3)
            assert.Equal(t, 6, result)
            calc.AssertExpectations(t)
        }

        // ✅ 正确:子测试独立Mock
        func TestCalculatorOperations(t *testing.T) {
            t.Run("addition", func(t *testing.T) {
                calc := new(MockCalculator)
                calc.On("Add", 1, 1).Return(2)

                result := calc.Add(1, 1)
                assert.Equal(t, 2, result)
                calc.AssertExpectations(t)
            })

            t.Run("multiplication", func(t *testing.T) {
                calc := new(MockCalculator)
                calc.On("Multiply", 2, 2).Return(4)

                result := calc.Multiply(2, 2)
                assert.Equal(t, 4, result)
                calc.AssertExpectations(t)
            })
        }

        // ❌ 错误:全局共享Mock(不推荐)
        var globalCalc *MockCalculator

        func TestWithGlobalMock1(t *testing.T) {
            // 问题:全局Mock被多个测试共享
            globalCalc = new(MockCalculator)
            globalCalc.On("Add", 1, 1).Return(2)

            result := globalCalc.Add(1, 1)
            assert.Equal(t, 2, result)
        }

        func TestWithGlobalMock2(t *testing.T) {
            // 问题:可能受到前一个测试的影响
            result := globalCalc.Add(1, 1)
            assert.Equal(t, 2, result)
        }

        // ✅ 正确:使用setup函数创建独立Mock
        func setupCalculator() *MockCalculator {
            return new(MockCalculator)
        }

        func TestWithSetup1(t *testing.T) {
            calc := setupCalculator()
            calc.On("Add", 5, 5).Return(10)

            result := calc.Add(5, 5)
            assert.Equal(t, 10, result)
            calc.AssertExpectations(t)
        }

        func TestWithSetup2(t *testing.T) {
            calc := setupCalculator()
            calc.On("Multiply", 3, 3).Return(9)

            result := calc.Multiply(3, 3)
            assert.Equal(t, 9, result)
            calc.AssertExpectations(t)
        }

        // ✅ 正确:表格驱动测试,每个case独立Mock
        func TestTableDrivenWithIsolation(t *testing.T) {
            tests := []struct {
                name     string
                op       string
                a, b     int
                expected int
            }{
                {"add positive", "add", 2, 3, 5},
                {"add negative", "add", -1, -2, -3},
                {"multiply positive", "multiply", 2, 3, 6},
                {"multiply zero", "multiply", 2, 0, 0},
            }

            for _, tt := range tests {
                t.Run(tt.name, func(t *testing.T) {
                    // 每个case创建新Mock
                    calc := new(MockCalculator)

                    if tt.op == "add" {
                        calc.On("Add", tt.a, tt.b).Return(tt.expected)
                        result := calc.Add(tt.a, tt.b)
                        assert.Equal(t, tt.expected, result)
                    } else {
                        calc.On("Multiply", tt.a, tt.b).Return(tt.expected)
                        result := calc.Multiply(tt.a, tt.b)
                        assert.Equal(t, tt.expected, result)
                    }

                    calc.AssertExpectations(t)
                })
            }
        }
        ---

03.合理使用Mock
    a.什么时候使用Mock
        当依赖慢速外部资源如数据库、网络、文件系统时使用Mock。当依赖难以控制如随机数、时间时使用Mock。当需要模拟错误场景时使用Mock。简单的纯函数不需要Mock。
    b.什么时候不用Mock
        单元测试值对象、工具函数等无依赖的代码时不需要Mock。集成测试验证真实交互时不用Mock。过度Mock会使测试脆弱,失去对真实行为的验证。
    c.代码示例
        ---
        // 合理使用Mock的场景
        package appropriate

        import (
            "errors"
            "testing"
            "time"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        // ✅ 场景1:需要Mock - 依赖外部服务
        type PaymentGateway interface {
            Charge(amount float64, token string) error
        }

        type MockPaymentGateway struct {
            mock.Mock
        }

        func (m *MockPaymentGateway) Charge(amount float64, token string) error {
            args := m.Called(amount, token)
            return args.Error(0)
        }

        type OrderProcessor struct {
            gateway PaymentGateway
        }

        func (p *OrderProcessor) ProcessOrder(amount float64, token string) error {
            return p.gateway.Charge(amount, token)
        }

        func TestProcessOrderWithMock(t *testing.T) {
            gateway := new(MockPaymentGateway)
            processor := &OrderProcessor{gateway: gateway}

            // Mock支付网关,避免真实支付
            gateway.On("Charge", 99.99, "token123").Return(nil)

            err := processor.ProcessOrder(99.99, "token123")

            assert.NoError(t, err)
            gateway.AssertExpectations(t)
        }

        // ✅ 场景2:需要Mock - 模拟错误场景
        func TestProcessOrderFailure(t *testing.T) {
            gateway := new(MockPaymentGateway)
            processor := &OrderProcessor{gateway: gateway}

            // Mock支付失败
            gateway.On("Charge", 99.99, "invalid_token").
                Return(errors.New("payment declined"))

            err := processor.ProcessOrder(99.99, "invalid_token")

            assert.Error(t, err)
            gateway.AssertExpectations(t)
        }

        // ✅ 场景3:需要Mock - 控制时间
        type TimeProvider interface {
            Now() time.Time
        }

        type MockTimeProvider struct {
            mock.Mock
        }

        func (m *MockTimeProvider) Now() time.Time {
            args := m.Called()
            return args.Get(0).(time.Time)
        }

        type Scheduler struct {
            time TimeProvider
        }

        func (s *Scheduler) IsExpired(expiryTime time.Time) bool {
            return s.time.Now().After(expiryTime)
        }

        func TestScheduler(t *testing.T) {
            timeMock := new(MockTimeProvider)
            scheduler := &Scheduler{time: timeMock}

            // 固定时间,便于测试
            fixedTime := time.Date(2024, 1, 1, 12, 0, 0, 0, time.UTC)
            timeMock.On("Now").Return(fixedTime)

            expiryTime := time.Date(2024, 1, 1, 11, 0, 0, 0, time.UTC)

            assert.True(t, scheduler.IsExpired(expiryTime))
            timeMock.AssertExpectations(t)
        }

        // ❌ 场景4:不需要Mock - 纯函数
        func Add(a, b int) int {
            return a + b
        }

        func TestAddNoMock(t *testing.T) {
            // 直接测试,不需要Mock
            result := Add(2, 3)
            assert.Equal(t, 5, result)
        }

        // ❌ 场景5:不需要Mock - 简单值对象
        type Point struct {
            X, Y int
        }

        func (p Point) Distance(other Point) float64 {
            dx := float64(p.X - other.X)
            dy := float64(p.Y - other.Y)
            return dx*dx + dy*dy
        }

        func TestPointDistance(t *testing.T) {
            // 值对象无依赖,直接测试
            p1 := Point{X: 0, Y: 0}
            p2 := Point{X: 3, Y: 4}

            distance := p1.Distance(p2)
            assert.Equal(t, 25.0, distance)
        }

        // ⚠️ 场景6:谨慎使用Mock - 不要过度Mock
        type UserRepository interface {
            GetUser(id int) (*User, error)
        }

        type UserValidator interface {
            Validate(user *User) error
        }

        type UserFormatter interface {
            Format(user *User) string
        }

        type User struct {
            ID   int
            Name string
        }

        // 如果Formatter只是简单的字符串格式化,不需要Mock
        type SimpleFormatter struct{}

        func (f *SimpleFormatter) Format(user *User) string {
            return user.Name
        }

        func TestWithoutOverMocking(t *testing.T) {
            // Repository需要Mock(依赖数据库)
            repo := &struct {
                mock.Mock
                UserRepository
            }{}

            // Formatter不需要Mock(纯函数)
            formatter := &SimpleFormatter{}

            user := &User{ID: 1, Name: "Alice"}
            formatted := formatter.Format(user)

            assert.Equal(t, "Alice", formatted)
        }
        ---

04.Mock维护策略
    a.保持Mock简单
        Mock应该简单直接,反映接口的真实行为。避免在Mock中实现复杂业务逻辑。如果Mock变得复杂,考虑是否接口设计有问题。过于复杂的Mock可能表明接口职责过多。
    b.文档和注释
        为Mock添加必要的注释,说明模拟的场景和行为。复杂的期望设置应该有注释解释原因。这帮助其他开发者理解测试意图,便于维护。
    c.代码示例
        ---
        // Mock维护最佳实践
        package maintenance

        import (
            "errors"
            "testing"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/mock"
        )

        type EmailService interface {
            Send(to, subject, body string) error
            SendBatch(recipients []string, subject, body string) error
            ValidateEmail(email string) bool
        }

        type MockEmailService struct {
            mock.Mock
        }

        func (m *MockEmailService) Send(to, subject, body string) error {
            args := m.Called(to, subject, body)
            return args.Error(0)
        }

        func (m *MockEmailService) SendBatch(recipients []string, subject, body string) error {
            args := m.Called(recipients, subject, body)
            return args.Error(0)
        }

        func (m *MockEmailService) ValidateEmail(email string) bool {
            args := m.Called(email)
            return args.Bool(0)
        }

        // ✅ 良好实践:清晰的测试结构
        func TestSendWelcomeEmail(t *testing.T) {
            // Arrange - 准备测试数据和Mock
            emailService := new(MockEmailService)
            userEmail := "newuser@example.com"

            // Mock设置:期望发送欢迎邮件
            emailService.On("Send",
                userEmail,
                "Welcome to Our Service",
                mock.MatchedBy(func(body string) bool {
                    // 验证邮件正文包含必要信息
                    return len(body) > 0
                }),
            ).Return(nil)

            // Act - 执行测试
            err := emailService.Send(userEmail, "Welcome to Our Service", "Welcome!")

            // Assert - 验证结果
            assert.NoError(t, err)
            emailService.AssertExpectations(t)
        }

        // ✅ 良好实践:使用辅助函数简化Mock设置
        func setupEmailServiceMock() *MockEmailService {
            m := new(MockEmailService)

            // 默认行为:邮件验证
            m.On("ValidateEmail", mock.MatchedBy(func(email string) bool {
                return len(email) > 0 && len(email) < 100
            })).Return(true)

            return m
        }

        func TestWithHelper(t *testing.T) {
            emailService := setupEmailServiceMock()

            // 只需设置特定测试的期望
            emailService.On("Send", mock.Anything, mock.Anything, mock.Anything).
                Return(nil)

            err := emailService.Send("test@example.com", "Test", "Body")

            assert.NoError(t, err)
        }

        // ✅ 良好实践:测试常见错误场景
        func TestEmailServiceErrors(t *testing.T) {
            tests := []struct {
                name          string
                setupMock     func(*MockEmailService)
                email         string
                expectedError string
            }{
                {
                    name: "invalid email format",
                    setupMock: func(m *MockEmailService) {
                        m.On("Send", "invalid-email", mock.Anything, mock.Anything).
                            Return(errors.New("invalid email format"))
                    },
                    email:         "invalid-email",
                    expectedError: "invalid email format",
                },
                {
                    name: "smtp server error",
                    setupMock: func(m *MockEmailService) {
                        m.On("Send", "valid@example.com", mock.Anything, mock.Anything).
                            Return(errors.New("SMTP connection failed"))
                    },
                    email:         "valid@example.com",
                    expectedError: "SMTP connection failed",
                },
            }

            for _, tt := range tests {
                t.Run(tt.name, func(t *testing.T) {
                    emailService := new(MockEmailService)
                    tt.setupMock(emailService)

                    err := emailService.Send(tt.email, "Subject", "Body")

                    assert.Error(t, err)
                    assert.Contains(t, err.Error(), tt.expectedError)
                    emailService.AssertExpectations(t)
                })
            }
        }

        // ✅ 良好实践:注释复杂的Mock行为
        func TestComplexScenario(t *testing.T) {
            emailService := new(MockEmailService)

            recipients := []string{"user1@example.com", "user2@example.com", "user3@example.com"}

            // 复杂场景:批量发送,模拟部分成功
            // 第一次调用失败(模拟临时网络问题)
            emailService.On("SendBatch", recipients, "Newsletter", mock.Anything).
                Return(errors.New("temporary network error")).
                Once()

            // 第二次调用成功(模拟重试成功)
            emailService.On("SendBatch", recipients, "Newsletter", mock.Anything).
                Return(nil).
                Once()

            // 第一次尝试
            err1 := emailService.SendBatch(recipients, "Newsletter", "Content")
            assert.Error(t, err1, "第一次应该失败")

            // 重试
            err2 := emailService.SendBatch(recipients, "Newsletter", "Content")
            assert.NoError(t, err2, "第二次应该成功")

            emailService.AssertExpectations(t)
        }

        // ✅ 良好实践:提取共用的Mock配置
        type testConfig struct {
            emailService *MockEmailService
        }

        func setupTestConfig() *testConfig {
            emailService := new(MockEmailService)

            // 设置通用的Mock行为
            emailService.On("ValidateEmail", mock.Anything).
                Return(func(email string) bool {
                    // 简单的邮件验证逻辑
                    return len(email) > 3
                })

            return &testConfig{
                emailService: emailService,
            }
        }

        func TestWithConfig(t *testing.T) {
            config := setupTestConfig()

            // 添加测试特定的期望
            config.emailService.On("Send", mock.Anything, mock.Anything, mock.Anything).
                Return(nil)

            err := config.emailService.Send("test@example.com", "Test", "Body")

            assert.NoError(t, err)
            config.emailService.AssertExpectations(t)
        }
        ---

5 测试套件详解

5.1 Suite基础

01.Suite概念
    a.什么是Suite
        testify的suite包提供了测试套件功能,类似于其他语言测试框架的Test Class。Suite允许将相关的测试组织在一起,共享设置和清理逻辑。通过嵌入suite.Suite类型,结构体获得了丰富的测试功能和生命周期管理能力。
    b.Suite的优势
        Suite提供了统一的测试前后处理机制,避免重复代码。支持SetupTest、TearDownTest等钩子函数,在测试生命周期的不同阶段执行操作。Suite使测试代码更有组织性,特别适合需要复杂初始化的测试场景。
    c.代码示例
        ---
        // Suite基础概念
        package suitebasic

        import (
            "testing"
            "github.com/stretchr/testify/suite"
        )

        // 定义测试套件
        type BasicSuite struct {
            suite.Suite
            // 可以添加共享字段
            value int
        }

        // 测试方法:必须以Test开头
        func (s *BasicSuite) TestSimple() {
            s.Equal(1, 1)
            s.True(true)
            s.NotNil(s)
        }

        func (s *BasicSuite) TestAssertions() {
            s.Equal(5, 2+3)
            s.Contains("hello world", "world")
            s.Greater(10, 5)
        }

        func (s *BasicSuite) TestWithSharedState() {
            // 访问套件字段
            s.value = 42
            s.Equal(42, s.value)
        }

        // 运行套件:必需的入口函数
        func TestBasicSuite(t *testing.T) {
            suite.Run(t, new(BasicSuite))
        }

        // 更复杂的套件示例
        type UserServiceSuite struct {
            suite.Suite
            service *UserService
            users   []*User
        }

        type UserService struct {
            users map[int]*User
        }

        func NewUserService() *UserService {
            return &UserService{
                users: make(map[int]*User),
            }
        }

        func (s *UserService) AddUser(user *User) {
            s.users[user.ID] = user
        }

        func (s *UserService) GetUser(id int) *User {
            return s.users[id]
        }

        func (s *UserService) DeleteUser(id int) {
            delete(s.users, id)
        }

        type User struct {
            ID   int
            Name string
        }

        func (s *UserServiceSuite) TestAddUser() {
            user := &User{ID: 1, Name: "Alice"}
            s.service.AddUser(user)

            retrieved := s.service.GetUser(1)
            s.NotNil(retrieved)
            s.Equal("Alice", retrieved.Name)
        }

        func (s *UserServiceSuite) TestGetUser() {
            user := &User{ID: 2, Name: "Bob"}
            s.service.AddUser(user)

            result := s.service.GetUser(2)
            s.Equal(user, result)
        }

        func (s *UserServiceSuite) TestDeleteUser() {
            user := &User{ID: 3, Name: "Charlie"}
            s.service.AddUser(user)

            s.service.DeleteUser(3)

            result := s.service.GetUser(3)
            s.Nil(result)
        }

        func TestUserServiceSuite(t *testing.T) {
            suite.Run(t, new(UserServiceSuite))
        }
        ---

02.Suite结构定义
    a.嵌入suite.Suite
        创建Suite的第一步是定义一个结构体并嵌入suite.Suite。这个嵌入为结构体提供了所有断言方法和Suite功能。结构体可以添加自己的字段存储测试所需的状态、依赖、配置等。
    b.添加测试字段
        在Suite结构体中可以定义字段存储测试依赖如数据库连接、Mock对象、测试数据等。这些字段在SetupSuite或SetupTest中初始化,在测试方法中使用,在TearDown方法中清理。字段让测试间共享资源变得简单。
    c.代码示例
        ---
        // Suite结构定义
        package suitestructure

        import (
            "database/sql"
            "testing"
            "github.com/stretchr/testify/suite"
        )

        // 基础Suite:只有suite.Suite
        type MinimalSuite struct {
            suite.Suite
        }

        func (s *MinimalSuite) TestExample() {
            s.True(true)
        }

        func TestMinimalSuite(t *testing.T) {
            suite.Run(t, new(MinimalSuite))
        }

        // 带共享资源的Suite
        type DatabaseSuite struct {
            suite.Suite
            db     *sql.DB
            config Config
        }

        type Config struct {
            Host string
            Port int
        }

        // 带Mock的Suite
        type ServiceSuite struct {
            suite.Suite
            mockDB    *MockDatabase
            mockCache *MockCache
            service   *Service
        }

        type MockDatabase struct {
            data map[string]string
        }

        func (m *MockDatabase) Get(key string) string {
            return m.data[key]
        }

        func (m *MockDatabase) Set(key, value string) {
            m.data[key] = value
        }

        type MockCache struct {
            items map[string]interface{}
        }

        func (m *MockCache) Get(key string) interface{} {
            return m.items[key]
        }

        func (m *MockCache) Set(key string, value interface{}) {
            m.items[key] = value
        }

        type Service struct {
            db    *MockDatabase
            cache *MockCache
        }

        func NewService(db *MockDatabase, cache *MockCache) *Service {
            return &Service{db: db, cache: cache}
        }

        func (s *Service) GetValue(key string) string {
            // 先查缓存
            if val := s.cache.Get(key); val != nil {
                return val.(string)
            }
            // 查数据库
            val := s.db.Get(key)
            // 写入缓存
            s.cache.Set(key, val)
            return val
        }

        func (s *ServiceSuite) TestGetValueFromCache() {
            // 测试会使用Suite的字段
            s.mockCache.Set("key1", "cached_value")

            result := s.service.GetValue("key1")

            s.Equal("cached_value", result)
        }

        func (s *ServiceSuite) TestGetValueFromDatabase() {
            s.mockDB.Set("key2", "db_value")

            result := s.service.GetValue("key2")

            s.Equal("db_value", result)
            // 验证已缓存
            s.Equal("db_value", s.mockCache.Get("key2"))
        }

        func TestServiceSuite(t *testing.T) {
            suite.Run(t, new(ServiceSuite))
        }

        // 带测试数据的Suite
        type DataProcessingSuite struct {
            suite.Suite
            testData    []TestData
            processor   *DataProcessor
            expectedResults map[string]interface{}
        }

        type TestData struct {
            Input    string
            Expected string
        }

        type DataProcessor struct{}

        func (p *DataProcessor) Process(input string) string {
            return input
        }

        func (s *DataProcessingSuite) TestProcessData() {
            for _, data := range s.testData {
                result := s.processor.Process(data.Input)
                s.Equal(data.Expected, result)
            }
        }

        func TestDataProcessingSuite(t *testing.T) {
            suite.Run(t, new(DataProcessingSuite))
        }

        // 嵌套组合的Suite
        type BaseSuite struct {
            suite.Suite
            commonConfig Config
        }

        type ExtendedSuite struct {
            BaseSuite
            additionalData string
        }

        func (s *ExtendedSuite) TestUsingBaseFields() {
            s.NotNil(s.commonConfig)
            s.NotEmpty(s.additionalData)
        }

        func TestExtendedSuite(t *testing.T) {
            suite.Run(t, new(ExtendedSuite))
        }
        ---

03.运行Suite
    a.suite.Run方法
        suite.Run是运行测试套件的入口。它接收*testing.T和Suite实例,自动发现所有Test开头的方法并执行。Run会正确调用所有生命周期钩子。每个Suite需要一个TestXxxSuite函数作为go test的入口点。
    b.测试方法命名
        Suite中的测试方法必须以Test开头才会被执行。方法签名是func (s *SuiteType) TestXxx(),没有参数,没有返回值。可以有任意数量的测试方法。非Test开头的方法不会被执行,可以用作辅助函数。
    c.代码示例
        ---
        // 运行Suite详解
        package suiterun

        import (
            "testing"
            "github.com/stretchr/testify/suite"
        )

        type ExampleSuite struct {
            suite.Suite
            executionOrder []string
        }

        // ✅ 会被执行:以Test开头
        func (s *ExampleSuite) TestFirst() {
            s.executionOrder = append(s.executionOrder, "TestFirst")
            s.True(true)
        }

        func (s *ExampleSuite) TestSecond() {
            s.executionOrder = append(s.executionOrder, "TestSecond")
            s.Equal(1, 1)
        }

        func (s *ExampleSuite) TestThird() {
            s.executionOrder = append(s.executionOrder, "TestThird")
            s.NotNil(s)
        }

        // ❌ 不会被执行:不以Test开头
        func (s *ExampleSuite) helperMethod() string {
            return "helper"
        }

        func (s *ExampleSuite) validateData(data string) bool {
            return len(data) > 0
        }

        // ✅ 测试可以调用辅助方法
        func (s *ExampleSuite) TestWithHelper() {
            result := s.helperMethod()
            s.Equal("helper", result)

            s.True(s.validateData("test"))
        }

        // 运行Suite的入口函数
        func TestExampleSuite(t *testing.T) {
            suite.Run(t, new(ExampleSuite))
        }

        // 多个Suite可以有各自的入口
        type AnotherSuite struct {
            suite.Suite
        }

        func (s *AnotherSuite) TestSomething() {
            s.True(true)
        }

        func TestAnotherSuite(t *testing.T) {
            suite.Run(t, new(AnotherSuite))
        }

        // 可以有多个测试入口运行同一个Suite(不常见)
        func TestExampleSuiteAlternate(t *testing.T) {
            s := new(ExampleSuite)
            suite.Run(t, s)
        }

        // Suite实例化时可以预设字段
        func TestExampleSuiteWithPreset(t *testing.T) {
            s := &ExampleSuite{
                executionOrder: []string{"preset"},
            }
            suite.Run(t, s)
        }

        // 测试方法命名示例
        type NamingExampleSuite struct {
            suite.Suite
        }

        // ✅ 正确的命名
        func (s *NamingExampleSuite) TestUserCreation() {}
        func (s *NamingExampleSuite) TestUserDeletion() {}
        func (s *NamingExampleSuite) TestDataValidation() {}
        func (s *NamingExampleSuite) Test_WithUnderscore() {}
        func (s *NamingExampleSuite) TestMultipleWords() {}

        // ❌ 这些不会被执行
        func (s *NamingExampleSuite) testLowerCase() {}      // 小写test
        func (s *NamingExampleSuite) UserTest() {}           // Test不在开头
        func (s *NamingExampleSuite) DoSomething() {}        // 没有Test
        func (s *NamingExampleSuite) setupHelper() {}        // 辅助方法

        func TestNamingExampleSuite(t *testing.T) {
            suite.Run(t, new(NamingExampleSuite))
        }

        // 验证测试执行
        type ExecutionVerificationSuite struct {
            suite.Suite
            testCount int
        }

        func (s *ExecutionVerificationSuite) TestOne() {
            s.testCount++
        }

        func (s *ExecutionVerificationSuite) TestTwo() {
            s.testCount++
        }

        func (s *ExecutionVerificationSuite) TestThree() {
            s.testCount++
        }

        func TestExecutionVerification(t *testing.T) {
            s := &ExecutionVerificationSuite{}
            suite.Run(t, s)

            // 注意:testCount在每个测试方法间不会累积
            // 因为每个测试方法执行时可能有独立的设置
        }
        ---

5.2 生命周期钩子

01.SetupSuite和TearDownSuite
    a.Suite级别的设置
        SetupSuite在整个Suite开始前执行一次,用于初始化Suite级别的资源如数据库连接、配置加载等。TearDownSuite在所有测试完成后执行一次,用于清理资源。这两个方法适合开销大且可以在测试间共享的资源。
    b.执行时机
        SetupSuite是第一个执行的方法,在任何测试方法之前。TearDownSuite是最后执行的方法,无论测试成功还是失败都会执行。如果Setup Suite失败,后续的测试方法不会执行但TearDownSuite仍会执行。
    c.代码示例
        ---
        // SetupSuite和TearDownSuite
        package suitelifecycle

        import (
            "fmt"
            "testing"
            "github.com/stretchr/testify/suite"
        )

        type LifecycleSuite struct {
            suite.Suite
            sharedResource string
            executionLog   []string
        }

        // Suite级别设置:整个Suite执行一次
        func (s *LifecycleSuite) SetupSuite() {
            s.executionLog = append(s.executionLog, "SetupSuite")
            s.sharedResource = "initialized"
            fmt.Println("SetupSuite: 初始化共享资源")
        }

        // Suite级别清理:整个Suite结束后执行一次
        func (s *LifecycleSuite) TearDownSuite() {
            s.executionLog = append(s.executionLog, "TearDownSuite")
            s.sharedResource = ""
            fmt.Println("TearDownSuite: 清理共享资源")
        }

        func (s *LifecycleSuite) TestOne() {
            s.executionLog = append(s.executionLog, "TestOne")
            s.Equal("initialized", s.sharedResource)
        }

        func (s *LifecycleSuite) TestTwo() {
            s.executionLog = append(s.executionLog, "TestTwo")
            s.NotEmpty(s.sharedResource)
        }

        func TestLifecycleSuite(t *testing.T) {
            suite.Run(t, new(LifecycleSuite))
        }

        // 实际应用:数据库连接
        type DatabaseSuite struct {
            suite.Suite
            dsn string
            // db *sql.DB // 实际项目中
        }

        func (s *DatabaseSuite) SetupSuite() {
            // 建立数据库连接(昂贵操作,只做一次)
            s.dsn = "user:pass@tcp(localhost:3306)/testdb"
            // s.db, _ = sql.Open("mysql", s.dsn)
            fmt.Println("数据库连接已建立")
        }

        func (s *DatabaseSuite) TearDownSuite() {
            // 关闭数据库连接
            // if s.db != nil {
            //     s.db.Close()
            // }
            fmt.Println("数据库连接已关闭")
        }

        func (s *DatabaseSuite) TestQuery() {
            s.NotEmpty(s.dsn)
            // 使用s.db执行查询
        }

        func (s *DatabaseSuite) TestInsert() {
            s.NotEmpty(s.dsn)
            // 使用s.db执行插入
        }

        func TestDatabaseSuite(t *testing.T) {
            suite.Run(t, new(DatabaseSuite))
        }

        // 实际应用:配置加载
        type ConfigSuite struct {
            suite.Suite
            config map[string]string
        }

        func (s *ConfigSuite) SetupSuite() {
            // 加载配置文件
            s.config = map[string]string{
                "api_url":    "https://api.example.com",
                "api_key":    "secret_key",
                "timeout":    "30",
                "max_retry":  "3",
            }
            fmt.Println("配置已加载")
        }

        func (s *ConfigSuite) TearDownSuite() {
            // 清理配置
            s.config = nil
            fmt.Println("配置已清理")
        }

        func (s *ConfigSuite) TestAPIConfiguration() {
            s.Equal("https://api.example.com", s.config["api_url"])
            s.NotEmpty(s.config["api_key"])
        }

        func (s *ConfigSuite) TestTimeoutConfiguration() {
            s.Equal("30", s.config["timeout"])
        }

        func TestConfigSuite(t *testing.T) {
            suite.Run(t, new(ConfigSuite))
        }
        ---

02.SetupTest和TearDownTest
    a.测试级别的设置
        SetupTest在每个测试方法执行前都会调用,TearDownTest在每个测试方法后都会调用。这确保每个测试都有干净的初始状态。适合初始化测试特定的数据、重置Mock、清空缓存等操作。
    b.隔离性保证
        通过SetupTest,每个测试方法都获得独立的初始状态,避免测试间相互影响。即使一个测试修改了共享数据,下一个测试也会重新初始化。TearDownTest确保测试产生的副作用被清理。
    c.代码示例
        ---
        // SetupTest和TearDownTest
        package testlifecycle

        import (
            "fmt"
            "testing"
            "github.com/stretchr/testify/suite"
        )

        type TestLevelSuite struct {
            suite.Suite
            counter      int
            testData     []string
            executionLog []string
        }

        // 每个测试前执行
        func (s *TestLevelSuite) SetupTest() {
            s.executionLog = append(s.executionLog, "SetupTest")
            s.counter = 0
            s.testData = []string{"initial"}
            fmt.Printf("SetupTest: counter=%d, data=%v\n", s.counter, s.testData)
        }

        // 每个测试后执行
        func (s *TestLevelSuite) TearDownTest() {
            s.executionLog = append(s.executionLog, "TearDownTest")
            fmt.Printf("TearDownTest: counter=%d, data=%v\n", s.counter, s.testData)
            // 清理测试数据
            s.testData = nil
        }

        func (s *TestLevelSuite) TestFirst() {
            s.executionLog = append(s.executionLog, "TestFirst")
            s.Equal(0, s.counter)
            s.Len(s.testData, 1)

            // 修改状态
            s.counter = 10
            s.testData = append(s.testData, "modified")
        }

        func (s *TestLevelSuite) TestSecond() {
            s.executionLog = append(s.executionLog, "TestSecond")
            // 状态已被SetupTest重置
            s.Equal(0, s.counter)
            s.Len(s.testData, 1)
            s.Equal("initial", s.testData[0])

            s.counter = 20
        }

        func (s *TestLevelSuite) TestThird() {
            s.executionLog = append(s.executionLog, "TestThird")
            // 再次重置
            s.Equal(0, s.counter)
            s.Len(s.testData, 1)
        }

        func TestTestLevelSuite(t *testing.T) {
            suite.Run(t, new(TestLevelSuite))
        }

        // 实际应用:Mock重置
        type MockTestSuite struct {
            suite.Suite
            mockDB    *MockDB
            mockCache *MockCache
        }

        type MockDB struct {
            data map[string]string
        }

        type MockCache struct {
            items map[string]interface{}
        }

        func (s *MockTestSuite) SetupTest() {
            // 每个测试都创建新的Mock实例
            s.mockDB = &MockDB{
                data: make(map[string]string),
            }
            s.mockCache = &MockCache{
                items: make(map[string]interface{}),
            }
            fmt.Println("SetupTest: Mock已重置")
        }

        func (s *MockTestSuite) TearDownTest() {
            // 清理Mock
            s.mockDB = nil
            s.mockCache = nil
            fmt.Println("TearDownTest: Mock已清理")
        }

        func (s *MockTestSuite) TestDBOperation() {
            // 使用干净的mockDB
            s.mockDB.data["key1"] = "value1"
            s.Equal("value1", s.mockDB.data["key1"])
        }

        func (s *MockTestSuite) TestCacheOperation() {
            // 使用干净的mockCache
            s.mockCache.items["key2"] = "value2"
            s.Equal("value2", s.mockCache.items["key2"])

            // mockDB应该是空的
            s.Empty(s.mockDB.data)
        }

        func TestMockTestSuite(t *testing.T) {
            suite.Run(t, new(MockTestSuite))
        }

        // 实际应用:临时文件管理
        type FileTestSuite struct {
            suite.Suite
            tempDir string
            files   []string
        }

        func (s *FileTestSuite) SetupTest() {
            // 创建临时目录
            s.tempDir = "/tmp/test_" + fmt.Sprint(s.T().Name())
            s.files = []string{}
            fmt.Printf("SetupTest: 临时目录创建 %s\n", s.tempDir)
        }

        func (s *FileTestSuite) TearDownTest() {
            // 清理临时文件
            for _, file := range s.files {
                fmt.Printf("TearDownTest: 删除文件 %s\n", file)
            }
            s.files = nil
            fmt.Printf("TearDownTest: 删除目录 %s\n", s.tempDir)
        }

        func (s *FileTestSuite) TestFileCreation() {
            fileName := s.tempDir + "/test.txt"
            s.files = append(s.files, fileName)
            s.NotEmpty(fileName)
        }

        func (s *FileTestSuite) TestFileReading() {
            // 每个测试都有独立的文件列表
            s.Empty(s.files)
            fileName := s.tempDir + "/data.txt"
            s.files = append(s.files, fileName)
        }

        func TestFileTestSuite(t *testing.T) {
            suite.Run(t, new(FileTestSuite))
        }
        ---

03.BeforeTest和AfterTest
    a.测试标识钩子
        BeforeTest和AfterTest接收suite名称和测试方法名作为参数,可以根据不同的测试执行不同的逻辑。它们在SetupTest之后、测试方法之前(BeforeTest)和测试方法之后、TearDownTest之前(AfterTest)执行。
    b.使用场景
        这两个钩子适合需要根据测试名称进行特殊处理的场景,如针对特定测试设置不同的配置、记录测试执行时间、设置测试特定的Mock行为等。相比SetupTest更灵活但使用频率较低。
    c.代码示例
        ---
        // BeforeTest和AfterTest
        package beforeafter

        import (
            "fmt"
            "testing"
            "time"
            "github.com/stretchr/testify/suite"
        )

        type BeforeAfterSuite struct {
            suite.Suite
            startTime    time.Time
            testConfig   map[string]string
            executionLog []string
        }

        func (s *BeforeAfterSuite) SetupTest() {
            s.executionLog = append(s.executionLog, "SetupTest")
            s.testConfig = make(map[string]string)
        }

        // BeforeTest在SetupTest之后,测试方法之前执行
        func (s *BeforeAfterSuite) BeforeTest(suiteName, testName string) {
            s.executionLog = append(s.executionLog,
                fmt.Sprintf("BeforeTest(%s, %s)", suiteName, testName))

            // 记录开始时间
            s.startTime = time.Now()

            // 根据测试名称设置不同配置
            switch testName {
            case "TestFast":
                s.testConfig["timeout"] = "1s"
            case "TestSlow":
                s.testConfig["timeout"] = "10s"
            default:
                s.testConfig["timeout"] = "5s"
            }

            fmt.Printf("BeforeTest: %s.%s 开始\n", suiteName, testName)
        }

        // AfterTest在测试方法之后,TearDownTest之前执行
        func (s *BeforeAfterSuite) AfterTest(suiteName, testName string) {
            s.executionLog = append(s.executionLog,
                fmt.Sprintf("AfterTest(%s, %s)", suiteName, testName))

            // 计算执行时间
            duration := time.Since(s.startTime)

            fmt.Printf("AfterTest: %s.%s 完成,耗时 %v\n",
                suiteName, testName, duration)
        }

        func (s *BeforeAfterSuite) TearDownTest() {
            s.executionLog = append(s.executionLog, "TearDownTest")
            s.testConfig = nil
        }

        func (s *BeforeAfterSuite) TestFast() {
            s.executionLog = append(s.executionLog, "TestFast")
            s.Equal("1s", s.testConfig["timeout"])
            time.Sleep(10 * time.Millisecond)
        }

        func (s *BeforeAfterSuite) TestSlow() {
            s.executionLog = append(s.executionLog, "TestSlow")
            s.Equal("10s", s.testConfig["timeout"])
            time.Sleep(50 * time.Millisecond)
        }

        func (s *BeforeAfterSuite) TestDefault() {
            s.executionLog = append(s.executionLog, "TestDefault")
            s.Equal("5s", s.testConfig["timeout"])
        }

        func TestBeforeAfterSuite(t *testing.T) {
            suite.Run(t, new(BeforeAfterSuite))
        }

        // 实际应用:测试分类
        type CategorySuite struct {
            suite.Suite
            category string
            metrics  map[string]int
        }

        func (s *CategorySuite) SetupSuite() {
            s.metrics = make(map[string]int)
        }

        func (s *CategorySuite) BeforeTest(suiteName, testName string) {
            // 根据测试名称确定类别
            if len(testName) > 8 && testName[:8] == "TestUnit" {
                s.category = "unit"
            } else if len(testName) > 15 && testName[:15] == "TestIntegration" {
                s.category = "integration"
            } else {
                s.category = "other"
            }

            s.metrics[s.category]++
            fmt.Printf("BeforeTest: 类别=%s\n", s.category)
        }

        func (s *CategorySuite) AfterTest(suiteName, testName string) {
            fmt.Printf("AfterTest: %s 完成(类别:%s)\n", testName, s.category)
        }

        func (s *CategorySuite) TearDownSuite() {
            fmt.Println("测试统计:")
            for category, count := range s.metrics {
                fmt.Printf("  %s: %d\n", category, count)
            }
        }

        func (s *CategorySuite) TestUnitCalculation() {
            s.Equal("unit", s.category)
        }

        func (s *CategorySuite) TestIntegrationDatabase() {
            s.Equal("integration", s.category)
        }

        func (s *CategorySuite) TestSomething() {
            s.Equal("other", s.category)
        }

        func TestCategorySuite(t *testing.T) {
            suite.Run(t, new(CategorySuite))
        }

        // 完整生命周期演示
        type FullLifecycleSuite struct {
            suite.Suite
            log []string
        }

        func (s *FullLifecycleSuite) SetupSuite() {
            s.log = append(s.log, "1.SetupSuite")
        }

        func (s *FullLifecycleSuite) SetupTest() {
            s.log = append(s.log, "2.SetupTest")
        }

        func (s *FullLifecycleSuite) BeforeTest(suiteName, testName string) {
            s.log = append(s.log, "3.BeforeTest")
        }

        func (s *FullLifecycleSuite) TestExample() {
            s.log = append(s.log, "4.TestExample")
            // 验证执行顺序
            s.Len(s.log, 4)
        }

        func (s *FullLifecycleSuite) AfterTest(suiteName, testName string) {
            s.log = append(s.log, "5.AfterTest")
        }

        func (s *FullLifecycleSuite) TearDownTest() {
            s.log = append(s.log, "6.TearDownTest")
        }

        func (s *FullLifecycleSuite) TearDownSuite() {
            s.log = append(s.log, "7.TearDownSuite")
            // 完整的执行顺序
            expected := []string{
                "1.SetupSuite",
                "2.SetupTest",
                "3.BeforeTest",
                "4.TestExample",
                "5.AfterTest",
                "6.TearDownTest",
                "7.TearDownSuite",
            }
            fmt.Printf("执行顺序: %v\n", expected)
        }

        func TestFullLifecycleSuite(t *testing.T) {
            suite.Run(t, new(FullLifecycleSuite))
        }
        ---

04.生命周期最佳实践
    a.选择合适的钩子
        SetupSuite用于昂贵的、可共享的初始化如数据库连接。SetupTest用于需要隔离的、每次测试都要重置的状态。BeforeTest用于需要根据测试名称定制的逻辑。避免在错误的钩子中执行操作导致性能问题或测试污染。
    b.错误处理
        Setup方法中的错误应该使用s.T().Fatal()或s.Fail()报告,这会终止测试。TearDown方法应该尽可能健壮,即使出错也要尝试清理资源。使用defer可以确保清理代码一定执行。
    c.代码示例
        ---
        // 生命周期最佳实践
        package lifecycle best

        import (
            "errors"
            "fmt"
            "testing"
            "github.com/stretchr/testify/suite"
        )

        type BestPracticeSuite struct {
            suite.Suite
            expensiveResource interface{}
            testResource      interface{}
        }

        // ✅ 正确:昂贵资源在SetupSuite
        func (s *BestPracticeSuite) SetupSuite() {
            var err error
            s.expensiveResource, err = initializeExpensiveResource()
            if err != nil {
                s.T().Fatalf("初始化失败: %v", err)
            }
        }

        // ✅ 正确:测试级资源在SetupTest
        func (s *BestPracticeSuite) SetupTest() {
            s.testResource = createTestResource()
        }

        // ✅ 正确:清理使用defer确保执行
        func (s *BestPracticeSuite) TearDownTest() {
            if s.testResource != nil {
                cleanupTestResource(s.testResource)
                s.testResource = nil
            }
        }

        // ✅ 正确:健壮的TearDown
        func (s *BestPracticeSuite) TearDownSuite() {
            defer func() {
                if r := recover(); r != nil {
                    fmt.Printf("TearDown panic recovered: %v\n", r)
                }
            }()

            if s.expensiveResource != nil {
                cleanupExpensiveResource(s.expensiveResource)
            }
        }

        func (s *BestPracticeSuite) TestSomething() {
            s.NotNil(s.expensiveResource)
            s.NotNil(s.testResource)
        }

        func TestBestPracticeSuite(t *testing.T) {
            suite.Run(t, new(BestPracticeSuite))
        }

        // ❌ 反面示例:错误的资源管理
        type BadPracticeSuite struct {
            suite.Suite
            sharedState int
        }

        // ❌ 错误:在SetupSuite修改会在测试间共享的状态
        func (s *BadPracticeSuite) SetupSuite() {
            s.sharedState = 0 // 所有测试共享此状态
        }

        func (s *BadPracticeSuite) TestOne() {
            s.sharedState++ // 修改共享状态
            s.Equal(1, s.sharedState)
        }

        func (s *BadPracticeSuite) TestTwo() {
            s.sharedState++ // 依赖前一个测试的状态(坏的)
            // s.Equal(1, s.sharedState) // 可能失败!
        }

        // ✅ 正确的版本
        type GoodPracticeSuite struct {
            suite.Suite
            testState int
        }

        func (s *GoodPracticeSuite) SetupTest() {
            s.testState = 0 // 每个测试独立初始化
        }

        func (s *GoodPracticeSuite) TestOne() {
            s.testState++
            s.Equal(1, s.testState)
        }

        func (s *GoodPracticeSuite) TestTwo() {
            s.testState++
            s.Equal(1, s.testState) // 总是通过
        }

        func TestGoodPracticeSuite(t *testing.T) {
            suite.Run(t, new(GoodPracticeSuite))
        }

        // 辅助函数
        func initializeExpensiveResource() (interface{}, error) {
            // 模拟昂贵的初始化
            return "expensive", nil
        }

        func cleanupExpensiveResource(resource interface{}) {
            // 清理
        }

        func createTestResource() interface{} {
            return "test"
        }

        func cleanupTestResource(resource interface{}) {
            // 清理
        }
        ---

5.3 子测试

01.Run方法创建子测试
    a.子测试概念
        Suite中可以使用s.Run()创建子测试,类似于testing包的t.Run()。子测试允许在一个测试方法内组织多个相关的测试场景。每个子测试有独立的名称,失败时可以准确定位。子测试支持并发执行和独立的setup/teardown。
    b.Run方法语法
        s.Run接收测试名称和函数。函数没有参数,在其中可以使用Suite的所有断言方法。子测试可以嵌套,创建层级结构。子测试的名称会包含父测试的名称,形成完整的测试路径。
    c.代码示例
        ---
        // 子测试基础
        package subtest

        import (
            "testing"
            "github.com/stretchr/testify/suite"
        )

        type SubTestSuite struct {
            suite.Suite
        }

        func (s *SubTestSuite) TestWithSubTests() {
            // 子测试1
            s.Run("positive numbers", func() {
                s.Greater(10, 5)
                s.Greater(100, 50)
            })

            // 子测试2
            s.Run("negative numbers", func() {
                s.Less(-5, 0)
                s.Less(-100, -10)
            })

            // 子测试3
            s.Run("zero", func() {
                s.Equal(0, 0)
                s.Zero(0)
            })
        }

        func (s *SubTestSuite) TestNestedSubTests() {
            s.Run("arithmetic", func() {
                s.Run("addition", func() {
                    s.Equal(5, 2+3)
                    s.Equal(10, 7+3)
                })

                s.Run("subtraction", func() {
                    s.Equal(2, 5-3)
                    s.Equal(0, 3-3)
                })
            })

            s.Run("comparison", func() {
                s.Run("equality", func() {
                    s.Equal(1, 1)
                    s.Equal("a", "a")
                })

                s.Run("inequality", func() {
                    s.NotEqual(1, 2)
                    s.NotEqual("a", "b")
                })
            })
        }

        func TestSubTestSuite(t *testing.T) {
            suite.Run(t, new(SubTestSuite))
        }

        // 表格驱动测试with子测试
        type CalculatorSuite struct {
            suite.Suite
        }

        func (s *CalculatorSuite) TestAddition() {
            testCases := []struct {
                name     string
                a, b     int
                expected int
            }{
                {"positive", 2, 3, 5},
                {"negative", -2, -3, -5},
                {"mixed", 10, -5, 5},
                {"zero", 0, 5, 5},
            }

            for _, tc := range testCases {
                s.Run(tc.name, func() {
                    result := tc.a + tc.b
                    s.Equal(tc.expected, result)
                })
            }
        }

        func (s *CalculatorSuite) TestDivision() {
            s.Run("normal division", func() {
                s.Equal(2, 10/5)
                s.Equal(3, 9/3)
            })

            s.Run("division by zero", func() {
                // 注意:Go中整数除以0会panic
                s.Panics(func() {
                    _ = 10 / 0
                })
            })

            s.Run("float division", func() {
                s.InDelta(3.333, 10.0/3.0, 0.001)
            })
        }

        func TestCalculatorSuite(t *testing.T) {
            suite.Run(t, new(CalculatorSuite))
        }
        ---

02.子测试数据隔离
    a.子测试的独立性
        每个子测试在执行时是独立的,但它们共享父测试方法的作用域。子测试内的变量修改不影响其他子测试(如果是值类型),但共享的引用类型需要注意。可以为每个子测试创建独立的数据副本。
    b.数据准备模式
        在子测试循环中,应该将循环变量赋值给局部变量,避免闭包陷阱。对于复杂数据,可以在每个子测试开始时clone或重新创建。这确保子测试间完全隔离,不会相互干扰。
    c.代码示例
        ---
        // 子测试数据隔离
        package subisolation

        import (
            "testing"
            "github.com/stretchr/testify/suite"
        )

        type IsolationSuite struct {
            suite.Suite
        }

        // ✅ 正确:值类型隔离
        func (s *IsolationSuite) TestValueTypeIsolation() {
            counter := 0

            s.Run("increment once", func() {
                counter++
                s.Equal(1, counter)
            })

            s.Run("increment again", func() {
                counter++
                // counter从上一个子测试的结果继续
                s.Equal(2, counter)
            })
        }

        // ⚠️ 注意:引用类型需要小心
        func (s *IsolationSuite) TestReferenceTypeSharing() {
            shared := []int{1, 2, 3}

            s.Run("modify slice", func() {
                shared = append(shared, 4)
                s.Len(shared, 4)
            })

            s.Run("slice is modified", func() {
                // shared仍然是修改后的版本
                s.Len(shared, 4)
            })
        }

        // ✅ 正确:为每个子测试创建独立数据
        func (s *IsolationSuite) TestWithFreshData() {
            testCases := []struct {
                name string
                data []int
            }{
                {"case1", []int{1, 2, 3}},
                {"case2", []int{4, 5, 6}},
                {"case3", []int{7, 8, 9}},
            }

            for _, tc := range testCases {
                // 创建局部变量(重要!)
                tc := tc

                s.Run(tc.name, func() {
                    // 每个子测试使用独立的数据副本
                    localData := make([]int, len(tc.data))
                    copy(localData, tc.data)

                    // 修改localData不影响其他子测试
                    localData[0] = 999
                    s.Equal(999, localData[0])
                })
            }
        }

        // ✅ 正确:避免闭包陷阱
        func (s *IsolationSuite) TestClosureTrap() {
            inputs := []int{1, 2, 3, 4, 5}

            // ❌ 错误的方式
            for i, val := range inputs {
                s.Run("wrong", func() {
                    // val和i是共享的,可能不是预期的值
                    _ = val
                    _ = i
                })
            }

            // ✅ 正确的方式
            for i, val := range inputs {
                i, val := i, val // 创建局部副本
                s.Run("correct", func() {
                    s.Less(i, len(inputs))
                    s.Equal(inputs[i], val)
                })
            }
        }

        func TestIsolationSuite(t *testing.T) {
            suite.Run(t, new(IsolationSuite))
        }

        // 实际应用:用户数据测试
        type UserTestSuite struct {
            suite.Suite
        }

        type User struct {
            ID   int
            Name string
            Age  int
        }

        func (s *UserTestSuite) TestUserValidation() {
            users := []User{
                {ID: 1, Name: "Alice", Age: 25},
                {ID: 2, Name: "Bob", Age: 30},
                {ID: 3, Name: "", Age: 20},     // invalid
                {ID: 4, Name: "David", Age: 0}, // invalid
            }

            for _, user := range users {
                user := user // 局部副本
                s.Run(user.Name, func() {
                    if user.Name == "" {
                        s.Empty(user.Name)
                    } else {
                        s.NotEmpty(user.Name)
                    }

                    if user.Age == 0 {
                        s.Zero(user.Age)
                    } else {
                        s.Positive(user.Age)
                    }
                })
            }
        }

        func TestUserTestSuite(t *testing.T) {
            suite.Run(t, new(UserTestSuite))
        }
        ---

03.子测试组织策略
    a.按场景分组
        使用子测试将相关场景组织在一起。例如成功场景、失败场景、边界条件等。每个主测试方法关注一个功能点,子测试覆盖该功能的不同方面。这使测试结构清晰,易于理解和维护。
    b.表格驱动模式
        子测试与表格驱动测试完美结合。定义测试用例结构体数组,为每个用例创建子测试。用例包含输入、期望输出、测试名称等。这种模式既简洁又强大,是Go测试的最佳实践。
    c.代码示例
        ---
        // 子测试组织策略
        package suborganization

        import (
            "errors"
            "testing"
            "github.com/stretchr/testify/suite"
        )

        type OrganizationSuite struct {
            suite.Suite
        }

        // 策略1:按场景分组
        func (s *OrganizationSuite) TestEmailValidation() {
            validator := &EmailValidator{}

            s.Run("valid emails", func() {
                s.Run("simple", func() {
                    s.True(validator.IsValid("user@example.com"))
                })

                s.Run("with subdomain", func() {
                    s.True(validator.IsValid("user@mail.example.com"))
                })

                s.Run("with plus", func() {
                    s.True(validator.IsValid("user+tag@example.com"))
                })
            })

            s.Run("invalid emails", func() {
                s.Run("no at symbol", func() {
                    s.False(validator.IsValid("userexample.com"))
                })

                s.Run("no domain", func() {
                    s.False(validator.IsValid("user@"))
                })

                s.Run("no username", func() {
                    s.False(validator.IsValid("@example.com"))
                })
            })

            s.Run("edge cases", func() {
                s.Run("empty string", func() {
                    s.False(validator.IsValid(""))
                })

                s.Run("whitespace", func() {
                    s.False(validator.IsValid(" "))
                })
            })
        }

        // 策略2:表格驱动
        func (s *OrganizationSuite) TestPasswordStrength() {
            checker := &PasswordChecker{}

            testCases := []struct {
                name     string
                password string
                expected string
            }{
                {"very strong", "Abcd1234!@#$", "strong"},
                {"strong", "Password123!", "strong"},
                {"medium", "password123", "medium"},
                {"weak", "password", "weak"},
                {"very weak", "12345", "weak"},
                {"empty", "", "weak"},
            }

            for _, tc := range testCases {
                tc := tc
                s.Run(tc.name, func() {
                    result := checker.CheckStrength(tc.password)
                    s.Equal(tc.expected, result)
                })
            }
        }

        // 策略3:功能分解
        func (s *OrganizationSuite) TestUserRegistration() {
            service := &UserService{}

            s.Run("input validation", func() {
                s.Run("valid input", func() {
                    err := service.ValidateInput("alice@example.com", "Pass123!")
                    s.NoError(err)
                })

                s.Run("invalid email", func() {
                    err := service.ValidateInput("invalid", "Pass123!")
                    s.Error(err)
                })

                s.Run("weak password", func() {
                    err := service.ValidateInput("alice@example.com", "123")
                    s.Error(err)
                })
            })

            s.Run("user creation", func() {
                s.Run("success", func() {
                    user, err := service.CreateUser("new@example.com", "Pass123!")
                    s.NoError(err)
                    s.NotNil(user)
                })

                s.Run("duplicate email", func() {
                    _, err := service.CreateUser("existing@example.com", "Pass123!")
                    s.Error(err)
                })
            })

            s.Run("notification", func() {
                s.Run("welcome email sent", func() {
                    // 测试邮件发送逻辑
                    s.True(true)
                })
            })
        }

        // 策略4:错误场景覆盖
        func (s *OrganizationSuite) TestFileOperation() {
            fileOps := &FileOperations{}

            s.Run("success scenarios", func() {
                s.Run("read existing file", func() {
                    data, err := fileOps.Read("/valid/path.txt")
                    s.NoError(err)
                    s.NotNil(data)
                })

                s.Run("write to writable location", func() {
                    err := fileOps.Write("/writable/file.txt", []byte("data"))
                    s.NoError(err)
                })
            })

            s.Run("error scenarios", func() {
                s.Run("file not found", func() {
                    _, err := fileOps.Read("/nonexistent/file.txt")
                    s.Error(err)
                })

                s.Run("permission denied", func() {
                    err := fileOps.Write("/readonly/file.txt", []byte("data"))
                    s.Error(err)
                })

                s.Run("disk full", func() {
                    err := fileOps.Write("/full/file.txt", make([]byte, 1e9))
                    s.Error(err)
                })
            })
        }

        func TestOrganizationSuite(t *testing.T) {
            suite.Run(t, new(OrganizationSuite))
        }

        // 辅助类型
        type EmailValidator struct{}

        func (v *EmailValidator) IsValid(email string) bool {
            return len(email) > 3 && email[0] != '@' && email[len(email)-1] != '@'
        }

        type PasswordChecker struct{}

        func (c *PasswordChecker) CheckStrength(password string) string {
            if len(password) >= 12 {
                return "strong"
            } else if len(password) >= 8 {
                return "medium"
            }
            return "weak"
        }

        type UserService struct{}

        func (s *UserService) ValidateInput(email, password string) error {
            if len(email) < 3 {
                return errors.New("invalid email")
            }
            if len(password) < 6 {
                return errors.New("weak password")
            }
            return nil
        }

        func (s *UserService) CreateUser(email, password string) (*User, error) {
            if email == "existing@example.com" {
                return nil, errors.New("duplicate email")
            }
            return &User{Name: email}, nil
        }

        type FileOperations struct{}

        func (f *FileOperations) Read(path string) ([]byte, error) {
            if path == "/nonexistent/file.txt" {
                return nil, errors.New("not found")
            }
            return []byte("data"), nil
        }

        func (f *FileOperations) Write(path string, data []byte) error {
            if path == "/readonly/file.txt" {
                return errors.New("permission denied")
            }
            if len(data) > 1e6 {
                return errors.New("disk full")
            }
            return nil
        }
        ---

5.4 并发测试

01.并发测试基础
    a.t.Parallel()使用
        在Suite的测试方法中调用s.T().Parallel()可以让该测试与其他并发测试并行执行。这可以大幅减少测试套件的总执行时间。并发测试之间必须完全独立,不能共享可变状态。注意Parallel标记的测试会等到所有非并发测试完成后才开始。
    b.并发安全性
        并发测试要求被测代码和测试代码都是并发安全的。共享的Suite字段如果在测试中被修改,会导致data race。使用go test -race可以检测并发问题。确保每个并发测试有独立的数据和资源。
    c.代码示例
        ---
        // 并发测试基础
        package parallel

        import (
            "sync"
            "testing"
            "time"
            "github.com/stretchr/testify/suite"
        )

        type ParallelSuite struct {
            suite.Suite
            // 只读字段是安全的
            config string
        }

        func (s *ParallelSuite) SetupSuite() {
            s.config = "shared config"
        }

        // 并发测试1
        func (s *ParallelSuite) TestParallel1() {
            s.T().Parallel()

            time.Sleep(100 * time.Millisecond)
            s.Equal("shared config", s.config)
        }

        // 并发测试2
        func (s *ParallelSuite) TestParallel2() {
            s.T().Parallel()

            time.Sleep(100 * time.Millisecond)
            s.NotEmpty(s.config)
        }

        // 并发测试3
        func (s *ParallelSuite) TestParallel3() {
            s.T().Parallel()

            time.Sleep(100 * time.Millisecond)
            s.True(true)
        }

        func TestParallelSuite(t *testing.T) {
            suite.Run(t, new(ParallelSuite))
        }

        // 并发安全的测试
        type ConcurrentSafeSuite struct {
            suite.Suite
        }

        func (s *ConcurrentSafeSuite) TestConcurrentOperation1() {
            s.T().Parallel()

            // 每个测试有独立的数据
            data := []int{1, 2, 3}
            sum := 0
            for _, v := range data {
                sum += v
            }
            s.Equal(6, sum)
        }

        func (s *ConcurrentSafeSuite) TestConcurrentOperation2() {
            s.T().Parallel()

            // 独立的数据
            data := map[string]int{
                "a": 1,
                "b": 2,
            }
            s.Len(data, 2)
        }

        func TestConcurrentSafeSuite(t *testing.T) {
            suite.Run(t, new(ConcurrentSafeSuite))
        }

        // ⚠️ 不安全的并发测试示例
        type UnsafeSuite struct {
            suite.Suite
            counter int // 共享可变状态
        }

        // ❌ 这会产生data race
        func (s *UnsafeSuite) TestUnsafe1() {
            s.T().Parallel()
            s.counter++ // race condition
            time.Sleep(10 * time.Millisecond)
        }

        func (s *UnsafeSuite) TestUnsafe2() {
            s.T().Parallel()
            s.counter++ // race condition
            time.Sleep(10 * time.Millisecond)
        }

        // ✅ 正确的版本:使用局部变量
        type SafeSuite struct {
            suite.Suite
        }

        func (s *SafeSuite) TestSafe1() {
            s.T().Parallel()
            counter := 0
            counter++
            s.Equal(1, counter)
        }

        func (s *SafeSuite) TestSafe2() {
            s.T().Parallel()
            counter := 0
            counter++
            s.Equal(1, counter)
        }

        func TestSafeSuite(t *testing.T) {
            suite.Run(t, new(SafeSuite))
        }
        ---

02.测试并发代码
    a.goroutine测试
        测试包含goroutine的代码需要使用WaitGroup或channel等同步机制确保goroutine完成。可以使用有缓冲channel收集goroutine的结果。设置超时避免测试hang住。使用t.Parallel可以并发运行多个这样的测试。
    b.竞态条件检测
        使用go test -race运行测试可以检测data race。testify的断言不是并发安全的,不要在多个goroutine中同时调用。如果需要在goroutine中断言,使用channel收集结果,在主goroutine中断言。
    c.代码示例
        ---
        // 测试并发代码
        package concurrent

        import (
            "sync"
            "testing"
            "time"
            "github.com/stretchr/testify/suite"
        )

        type ConcurrentCodeSuite struct {
            suite.Suite
        }

        // 测试goroutine
        func (s *ConcurrentCodeSuite) TestGoroutineExecution() {
            var wg sync.WaitGroup
            results := make([]int, 0)
            mu := sync.Mutex{}

            for i := 0; i < 10; i++ {
                wg.Add(1)
                go func(n int) {
                    defer wg.Done()
                    mu.Lock()
                    results = append(results, n*2)
                    mu.Unlock()
                }(i)
            }

            wg.Wait()
            s.Len(results, 10)
        }

        // 测试channel通信
        func (s *ConcurrentCodeSuite) TestChannelCommunication() {
            ch := make(chan int, 10)

            // 生产者
            go func() {
                for i := 0; i < 10; i++ {
                    ch <- i
                }
                close(ch)
            }()

            // 消费者
            count := 0
            for range ch {
                count++
            }

            s.Equal(10, count)
        }

        // 测试超时
        func (s *ConcurrentCodeSuite) TestWithTimeout() {
            done := make(chan bool)

            go func() {
                time.Sleep(50 * time.Millisecond)
                done <- true
            }()

            select {
            case <-done:
                s.True(true, "完成")
            case <-time.After(100 * time.Millisecond):
                s.Fail("超时")
            }
        }

        // ✅ 正确:在主goroutine中断言
        func (s *ConcurrentCodeSuite) TestAssertionInMainGoroutine() {
            results := make(chan int, 10)

            // worker goroutines
            var wg sync.WaitGroup
            for i := 0; i < 10; i++ {
                wg.Add(1)
                go func(n int) {
                    defer wg.Done()
                    results <- n * n
                }(i)
            }

            // 等待并关闭channel
            go func() {
                wg.Wait()
                close(results)
            }()

            // 在主goroutine中收集结果并断言
            sum := 0
            for result := range results {
                sum += result
            }

            s.Equal(285, sum) // 0^2+1^2+...+9^2 = 285
        }

        // 测试并发安全的结构
        type SafeCounter struct {
            mu    sync.Mutex
            count int
        }

        func (c *SafeCounter) Inc() {
            c.mu.Lock()
            c.count++
            c.mu.Unlock()
        }

        func (c *SafeCounter) Value() int {
            c.mu.Lock()
            defer c.mu.Unlock()
            return c.count
        }

        func (s *ConcurrentCodeSuite) TestSafeCounter() {
            counter := &SafeCounter{}
            var wg sync.WaitGroup

            // 并发增加计数
            for i := 0; i < 1000; i++ {
                wg.Add(1)
                go func() {
                    defer wg.Done()
                    counter.Inc()
                }()
            }

            wg.Wait()
            s.Equal(1000, counter.Value())
        }

        func TestConcurrentCodeSuite(t *testing.T) {
            suite.Run(t, new(ConcurrentCodeSuite))
        }
        ---

03.并发性能测试
    a.压力测试
        使用大量并发goroutine测试系统在高负载下的行为。验证没有data race、死锁、资源泄漏等问题。可以逐渐增加并发数,观察系统表现。结合-race标志和监控工具检测问题。
    b.吞吐量测试
        测试并发操作的吞吐量,统计单位时间内完成的操作数。使用WaitGroup和time.Since测量执行时间。比较串行和并发版本的性能差异。这类测试帮助优化并发策略。
    c.代码示例
        ---
        // 并发性能测试
        package performance

        import (
            "sync"
            "sync/atomic"
            "testing"
            "time"
            "github.com/stretchr/testify/suite"
        )

        type PerformanceSuite struct {
            suite.Suite
        }

        // 压力测试
        func (s *PerformanceSuite) TestHighConcurrency() {
            const goroutines = 1000
            const iterations = 100

            var counter int64
            var wg sync.WaitGroup

            start := time.Now()

            for i := 0; i < goroutines; i++ {
                wg.Add(1)
                go func() {
                    defer wg.Done()
                    for j := 0; j < iterations; j++ {
                        atomic.AddInt64(&counter, 1)
                    }
                }()
            }

            wg.Wait()
            duration := time.Since(start)

            expected := int64(goroutines * iterations)
            s.Equal(expected, counter)
            s.T().Logf("完成 %d 操作,耗时 %v", counter, duration)
        }

        // 吞吐量测试
        func (s *PerformanceSuite) TestThroughput() {
            const duration = 1 * time.Second
            const workers = 10

            var ops int64
            stop := make(chan bool)
            var wg sync.WaitGroup

            // 启动workers
            for i := 0; i < workers; i++ {
                wg.Add(1)
                go func() {
                    defer wg.Done()
                    for {
                        select {
                        case <-stop:
                            return
                        default:
                            // 模拟操作
                            time.Sleep(time.Microsecond)
                            atomic.AddInt64(&ops, 1)
                        }
                    }
                }()
            }

            // 运行指定时间
            time.Sleep(duration)
            close(stop)
            wg.Wait()

            s.T().Logf("吞吐量: %d ops/s", ops)
            s.Greater(ops, int64(0))
        }

        // 并发vs串行对比
        func (s *PerformanceSuite) TestConcurrentVsSerial() {
            const tasks = 100

            // 串行执行
            startSerial := time.Now()
            for i := 0; i < tasks; i++ {
                time.Sleep(time.Millisecond)
            }
            serialDuration := time.Since(startSerial)

            // 并发执行
            startConcurrent := time.Now()
            var wg sync.WaitGroup
            for i := 0; i < tasks; i++ {
                wg.Add(1)
                go func() {
                    defer wg.Done()
                    time.Sleep(time.Millisecond)
                }()
            }
            wg.Wait()
            concurrentDuration := time.Since(startConcurrent)

            s.T().Logf("串行: %v, 并发: %v", serialDuration, concurrentDuration)
            s.Less(concurrentDuration, serialDuration)
        }

        // 资源池测试
        type ResourcePool struct {
            resources chan *Resource
        }

        type Resource struct {
            ID int
        }

        func NewResourcePool(size int) *ResourcePool {
            pool := &ResourcePool{
                resources: make(chan *Resource, size),
            }
            for i := 0; i < size; i++ {
                pool.resources <- &Resource{ID: i}
            }
            return pool
        }

        func (p *ResourcePool) Acquire() *Resource {
            return <-p.resources
        }

        func (p *ResourcePool) Release(r *Resource) {
            p.resources <- r
        }

        func (s *PerformanceSuite) TestResourcePool() {
            pool := NewResourcePool(10)
            const clients = 100
            var wg sync.WaitGroup

            for i := 0; i < clients; i++ {
                wg.Add(1)
                go func() {
                    defer wg.Done()

                    // 获取资源
                    resource := pool.Acquire()
                    s.NotNil(resource)

                    // 使用资源
                    time.Sleep(10 * time.Millisecond)

                    // 释放资源
                    pool.Release(resource)
                }()
            }

            wg.Wait()
            s.Len(pool.resources, 10)
        }

        func TestPerformanceSuite(t *testing.T) {
            suite.Run(t, new(PerformanceSuite))
        }
        ---

5.5 测试夹具

01.夹具概念
    a.什么是测试夹具
        测试夹具(Fixture)是测试运行所需的固定状态和环境,包括测试数据、Mock对象、数据库连接、配置等。在Suite中,夹具通常在Setup方法中创建,在TearDown方法中清理。良好的夹具管理使测试可靠、可重复、易维护。
    b.夹具的作用
        夹具提供测试所需的已知初始状态。消除测试间的依赖,确保每个测试独立运行。减少重复代码,Setup中的初始化逻辑被所有测试共享。夹具是测试可预测性的基础。
    c.代码示例
        ---
        // 测试夹具基础
        package fixture

        import (
            "testing"
            "github.com/stretchr/testify/suite"
        )

        // 基础夹具示例
        type BasicFixtureSuite struct {
            suite.Suite
            // 夹具字段
            testUser  *User
            testData  []Item
            mockDB    *MockDatabase
        }

        type User struct {
            ID   int
            Name string
        }

        type Item struct {
            Name  string
            Value int
        }

        type MockDatabase struct {
            data map[string]interface{}
        }

        // 设置夹具
        func (s *BasicFixtureSuite) SetupTest() {
            // 创建测试用户
            s.testUser = &User{
                ID:   1,
                Name: "TestUser",
            }

            // 准备测试数据
            s.testData = []Item{
                {Name: "item1", Value: 10},
                {Name: "item2", Value: 20},
                {Name: "item3", Value: 30},
            }

            // 初始化Mock
            s.mockDB = &MockDatabase{
                data: make(map[string]interface{}),
            }
        }

        // 清理夹具
        func (s *BasicFixtureSuite) TearDownTest() {
            s.testUser = nil
            s.testData = nil
            s.mockDB = nil
        }

        // 测试使用夹具
        func (s *BasicFixtureSuite) TestUserFixture() {
            s.NotNil(s.testUser)
            s.Equal("TestUser", s.testUser.Name)
        }

        func (s *BasicFixtureSuite) TestDataFixture() {
            s.Len(s.testData, 3)
            s.Equal(10, s.testData[0].Value)
        }

        func (s *BasicFixtureSuite) TestMockFixture() {
            s.mockDB.data["key"] = "value"
            s.Equal("value", s.mockDB.data["key"])
        }

        func TestBasicFixtureSuite(t *testing.T) {
            suite.Run(t, new(BasicFixtureSuite))
        }
        ---

02.共享夹具
    a.Suite级夹具
        在SetupSuite中创建的夹具被所有测试共享。适用于昂贵的初始化操作如数据库连接、大文件加载等。共享夹具必须是只读的或并发安全的,避免测试间相互影响。在TearDownSuite中清理。
    b.测试级夹具
        在SetupTest中创建的夹具为每个测试独立准备。适用于可变状态、需要隔离的资源。每个测试获得新鲜的夹具实例,修改不影响其他测试。在TearDownTest中清理。
    c.代码示例
        ---
        // 共享夹具管理
        package sharedfixture

        import (
            "testing"
            "github.com/stretchr/testify/suite"
        )

        type SharedFixtureSuite struct {
            suite.Suite
            // Suite级夹具:所有测试共享
            config    map[string]string
            constants []string

            // 测试级夹具:每个测试独立
            counter int
            buffer  []byte
        }

        // Suite级初始化
        func (s *SharedFixtureSuite) SetupSuite() {
            // 只初始化一次
            s.config = map[string]string{
                "db_host":   "localhost",
                "db_port":   "3306",
                "api_key":   "secret_key",
            }

            s.constants = []string{"ONE", "TWO", "THREE"}
        }

        // 测试级初始化
        func (s *SharedFixtureSuite) SetupTest() {
            // 每个测试都重新初始化
            s.counter = 0
            s.buffer = make([]byte, 0, 1024)
        }

        func (s *SharedFixtureSuite) TearDownTest() {
            s.buffer = nil
        }

        func (s *SharedFixtureSuite) TestSharedConfig() {
            // 可以读取共享配置
            s.Equal("localhost", s.config["db_host"])
            s.Len(s.constants, 3)

            // 修改测试级夹具
            s.counter = 10
            s.buffer = append(s.buffer, 'a', 'b', 'c')
        }

        func (s *SharedFixtureSuite) TestIsolatedState() {
            // 测试级夹具已重置
            s.Equal(0, s.counter)
            s.Len(s.buffer, 0)

            // 共享夹具仍然可用
            s.NotEmpty(s.config)
        }

        func TestSharedFixtureSuite(t *testing.T) {
            suite.Run(t, new(SharedFixtureSuite))
        }

        // 实际应用:数据库夹具
        type DatabaseFixtureSuite struct {
            suite.Suite
            // 共享连接
            dbConnection *DBConnection

            // 测试独立的事务
            tx *Transaction
        }

        type DBConnection struct {
            host string
        }

        type Transaction struct {
            id int
        }

        func (s *DatabaseFixtureSuite) SetupSuite() {
            // 建立数据库连接(昂贵操作)
            s.dbConnection = &DBConnection{host: "localhost"}
        }

        func (s *DatabaseFixtureSuite) SetupTest() {
            // 每个测试开始新事务
            s.tx = &Transaction{id: 1}
        }

        func (s *DatabaseFixtureSuite) TearDownTest() {
            // 回滚事务
            s.tx = nil
        }

        func (s *DatabaseFixtureSuite) TearDownSuite() {
            // 关闭连接
            s.dbConnection = nil
        }

        func (s *DatabaseFixtureSuite) TestInsert() {
            s.NotNil(s.dbConnection)
            s.NotNil(s.tx)
            // 在事务中执行插入
        }

        func (s *DatabaseFixtureSuite) TestQuery() {
            s.NotNil(s.dbConnection)
            s.NotNil(s.tx)
            // 在事务中执行查询
        }

        func TestDatabaseFixtureSuite(t *testing.T) {
            suite.Run(t, new(DatabaseFixtureSuite))
        }
        ---

03.夹具工厂模式
    a.工厂函数
        使用工厂函数创建夹具,集中管理创建逻辑。工厂函数接收参数定制夹具。这使夹具创建灵活可复用,便于在不同测试中使用相同或相似的夹具。工厂模式也便于维护和修改夹具结构。
    b.Builder模式
        对于复杂夹具,使用Builder模式逐步构建。Builder提供流畅的API设置夹具的各个部分。最后调用Build()生成夹具。这种模式使夹具创建清晰且可定制。
    c.代码示例
        ---
        // 夹具工厂模式
        package fixturefactory

        import (
            "testing"
            "github.com/stretchr/testify/suite"
        )

        type FactorySuite struct {
            suite.Suite
        }

        // 简单工厂函数
        func NewTestUser(id int, name string) *User {
            return &User{
                ID:   id,
                Name: name,
            }
        }

        func NewDefaultTestUser() *User {
            return NewTestUser(1, "DefaultUser")
        }

        func (s *FactorySuite) TestWithFactory() {
            user1 := NewTestUser(1, "Alice")
            user2 := NewTestUser(2, "Bob")
            user3 := NewDefaultTestUser()

            s.Equal("Alice", user1.Name)
            s.Equal("Bob", user2.Name)
            s.Equal("DefaultUser", user3.Name)
        }

        // Builder模式
        type OrderBuilder struct {
            order *Order
        }

        type Order struct {
            ID     int
            UserID int
            Items  []OrderItem
            Total  float64
            Status string
        }

        type OrderItem struct {
            Product string
            Qty     int
            Price   float64
        }

        func NewOrderBuilder() *OrderBuilder {
            return &OrderBuilder{
                order: &Order{
                    Items:  make([]OrderItem, 0),
                    Status: "pending",
                },
            }
        }

        func (b *OrderBuilder) WithID(id int) *OrderBuilder {
            b.order.ID = id
            return b
        }

        func (b *OrderBuilder) WithUser(userID int) *OrderBuilder {
            b.order.UserID = userID
            return b
        }

        func (b *OrderBuilder) AddItem(product string, qty int, price float64) *OrderBuilder {
            b.order.Items = append(b.order.Items, OrderItem{
                Product: product,
                Qty:     qty,
                Price:   price,
            })
            b.order.Total += float64(qty) * price
            return b
        }

        func (b *OrderBuilder) WithStatus(status string) *OrderBuilder {
            b.order.Status = status
            return b
        }

        func (b *OrderBuilder) Build() *Order {
            return b.order
        }

        func (s *FactorySuite) TestWithBuilder() {
            order := NewOrderBuilder().
                WithID(100).
                WithUser(1).
                AddItem("Product1", 2, 10.0).
                AddItem("Product2", 1, 20.0).
                WithStatus("completed").
                Build()

            s.Equal(100, order.ID)
            s.Equal(1, order.UserID)
            s.Len(order.Items, 2)
            s.Equal(40.0, order.Total)
            s.Equal("completed", order.Status)
        }

        // 预定义夹具集
        type TestData struct {
            Users  []*User
            Orders []*Order
        }

        func NewTestDataSet() *TestData {
            return &TestData{
                Users: []*User{
                    {ID: 1, Name: "Alice"},
                    {ID: 2, Name: "Bob"},
                    {ID: 3, Name: "Charlie"},
                },
                Orders: []*Order{
                    {ID: 1, UserID: 1, Total: 100.0},
                    {ID: 2, UserID: 2, Total: 200.0},
                },
            }
        }

        func (s *FactorySuite) TestWithDataSet() {
            data := NewTestDataSet()

            s.Len(data.Users, 3)
            s.Len(data.Orders, 2)
            s.Equal("Alice", data.Users[0].Name)
        }

        func TestFactorySuite(t *testing.T) {
            suite.Run(t, new(FactorySuite))
        }
        ---

04.夹具最佳实践
    a.最小化夹具
        只创建测试真正需要的夹具,避免过度准备。大而全的夹具增加测试复杂度和维护成本。根据测试需求定制夹具。使用工厂或Builder创建不同大小的夹具。
    b.夹具隔离
        确保夹具间相互独立,一个测试的夹具修改不影响其他测试。避免全局状态和单例。使用SetupTest为每个测试创建新夹具。共享夹具必须是只读或并发安全的。
    c.代码示例
        ---
        // 夹具最佳实践
        package fixturebest

        import (
            "testing"
            "github.com/stretchr/testify/suite"
        )

        // ✅ 正确:最小化夹具
        type MinimalFixtureSuite struct {
            suite.Suite
        }

        func (s *MinimalFixtureSuite) TestUserName() {
            // 只创建需要的数据
            user := &User{Name: "Alice"}
            s.Equal("Alice", user.Name)
        }

        func (s *MinimalFixtureSuite) TestUserID() {
            // 这个测试只需要ID
            user := &User{ID: 1}
            s.Equal(1, user.ID)
        }

        func TestMinimalFixtureSuite(t *testing.T) {
            suite.Run(t, new(MinimalFixtureSuite))
        }

        // ❌ 错误:过度准备
        type OverpreparedSuite struct {
            suite.Suite
            complexData *ComplexData
        }

        type ComplexData struct {
            Users    []*User
            Orders   []*Order
            Products []string
            Config   map[string]string
        }

        func (s *OverpreparedSuite) SetupTest() {
            // 准备了大量数据,但每个测试可能只用一小部分
            s.complexData = &ComplexData{
                Users:    make([]*User, 100),
                Orders:   make([]*Order, 200),
                Products: make([]string, 50),
                Config:   make(map[string]string),
            }
        }

        // ✅ 正确:按需创建
        type OnDemandSuite struct {
            suite.Suite
        }

        func (s *OnDemandSuite) createTestUsers(count int) []*User {
            users := make([]*User, count)
            for i := 0; i < count; i++ {
                users[i] = &User{ID: i + 1}
            }
            return users
        }

        func (s *OnDemandSuite) TestWithFewUsers() {
            users := s.createTestUsers(3)
            s.Len(users, 3)
        }

        func (s *OnDemandSuite) TestWithManyUsers() {
            users := s.createTestUsers(100)
            s.Len(users, 100)
        }

        func TestOnDemandSuite(t *testing.T) {
            suite.Run(t, new(OnDemandSuite))
        }

        // ✅ 正确:夹具清理
        type CleanupSuite struct {
            suite.Suite
            tempFiles []string
        }

        func (s *CleanupSuite) SetupTest() {
            s.tempFiles = make([]string, 0)
        }

        func (s *CleanupSuite) TearDownTest() {
            // 清理临时文件
            for _, file := range s.tempFiles {
                // os.Remove(file)
                _ = file
            }
            s.tempFiles = nil
        }

        func (s *CleanupSuite) TestFileCreation() {
            file := "/tmp/test.txt"
            s.tempFiles = append(s.tempFiles, file)
            // 创建文件...
        }

        func TestCleanupSuite(t *testing.T) {
            suite.Run(t, new(CleanupSuite))
        }

        // ✅ 正确:夹具隔离
        type IsolatedFixtureSuite struct {
            suite.Suite
        }

        func (s *IsolatedFixtureSuite) TestOne() {
            // 每个测试创建自己的数据
            data := map[string]int{"key": 1}
            data["key"] = 10
            s.Equal(10, data["key"])
        }

        func (s *IsolatedFixtureSuite) TestTwo() {
            // 独立的数据,不受Test One影响
            data := map[string]int{"key": 1}
            s.Equal(1, data["key"])
        }

        func TestIsolatedFixtureSuite(t *testing.T) {
            suite.Run(t, new(IsolatedFixtureSuite))
        }
        ---

5.6 Suite组织策略

01.按功能模块组织
    a.模块化Suite
        为每个功能模块创建独立的Suite。每个Suite专注于测试一个明确的功能领域如用户管理、订单处理等。模块化使测试结构清晰,便于定位和维护。不同模块的Suite可以并行运行,提高测试效率。
    b.命名规范
        Suite名称应该清晰表达测试的模块或功能。使用XxxSuite命名格式,Xxx是模块或功能名。测试方法名应该描述具体的测试场景。好的命名使测试自文档化,易于理解测试意图。
    c.代码示例
        ---
        // 按功能模块组织Suite
        package organization

        import (
            "testing"
            "github.com/stretchr/testify/suite"
        )

        // 用户管理Suite
        type UserManagementSuite struct {
            suite.Suite
            userService *UserService
        }

        type UserService struct{}

        func (s *UserService) CreateUser(name string) *User {
            return &User{Name: name}
        }

        func (s *UserService) DeleteUser(id int) bool {
            return true
        }

        func (s *UserManagementSuite) SetupTest() {
            s.userService = &UserService{}
        }

        func (s *UserManagementSuite) TestCreateUser() {
            user := s.userService.CreateUser("Alice")
            s.NotNil(user)
            s.Equal("Alice", user.Name)
        }

        func (s *UserManagementSuite) TestDeleteUser() {
            result := s.userService.DeleteUser(1)
            s.True(result)
        }

        func TestUserManagementSuite(t *testing.T) {
            suite.Run(t, new(UserManagementSuite))
        }

        // 订单处理Suite
        type OrderProcessingSuite struct {
            suite.Suite
            orderService *OrderService
        }

        type OrderService struct{}

        func (s *OrderService) CreateOrder(userID int) *Order {
            return &Order{UserID: userID}
        }

        func (s *OrderService) CancelOrder(orderID int) error {
            return nil
        }

        func (s *OrderProcessingSuite) SetupTest() {
            s.orderService = &OrderService{}
        }

        func (s *OrderProcessingSuite) TestCreateOrder() {
            order := s.orderService.CreateOrder(1)
            s.NotNil(order)
            s.Equal(1, order.UserID)
        }

        func (s *OrderProcessingSuite) TestCancelOrder() {
            err := s.orderService.CancelOrder(1)
            s.NoError(err)
        }

        func TestOrderProcessingSuite(t *testing.T) {
            suite.Run(t, new(OrderProcessingSuite))
        }

        // 支付处理Suite
        type PaymentProcessingSuite struct {
            suite.Suite
            paymentGateway *PaymentGateway
        }

        type PaymentGateway struct{}

        func (g *PaymentGateway) ProcessPayment(amount float64) (string, error) {
            return "tx_123", nil
        }

        func (s *PaymentProcessingSuite) SetupTest() {
            s.paymentGateway = &PaymentGateway{}
        }

        func (s *PaymentProcessingSuite) TestProcessPayment() {
            txID, err := s.paymentGateway.ProcessPayment(99.99)
            s.NoError(err)
            s.NotEmpty(txID)
        }

        func TestPaymentProcessingSuite(t *testing.T) {
            suite.Run(t, new(PaymentProcessingSuite))
        }
        ---

02.Suite继承与组合
    a.基础Suite复用
        创建包含通用设置的基础Suite,其他Suite通过嵌入复用。基础Suite可以提供通用的夹具、辅助方法、配置等。这减少代码重复,统一测试基础设施。子Suite可以覆盖基础Suite的方法定制行为。
    b.组合多个Suite
        一个测试文件可以定义多个相关的Suite,每个Suite测试不同的方面。Suite间可以共享类型定义和辅助函数。根据测试需求灵活组合,保持每个Suite专注且简洁。
    c.代码示例
        ---
        // Suite继承与组合
        package inheritance

        import (
            "testing"
            "github.com/stretchr/testify/suite"
        )

        // 基础Suite:提供通用功能
        type BaseSuite struct {
            suite.Suite
            config map[string]string
        }

        func (s *BaseSuite) SetupSuite() {
            s.config = map[string]string{
                "env":    "test",
                "db_url": "localhost:3306",
            }
        }

        func (s *BaseSuite) GetConfig(key string) string {
            return s.config[key]
        }

        // 继承基础Suite的具体Suite
        type DatabaseSuite struct {
            BaseSuite
            connection string
        }

        func (s *DatabaseSuite) SetupTest() {
            s.connection = s.GetConfig("db_url")
        }

        func (s *DatabaseSuite) TestConnection() {
            s.Equal("localhost:3306", s.connection)
            s.NotEmpty(s.GetConfig("env"))
        }

        func TestDatabaseSuite(t *testing.T) {
            suite.Run(t, new(DatabaseSuite))
        }

        // 另一个继承基础Suite的Suite
        type APISuite struct {
            BaseSuite
            apiURL string
        }

        func (s *APISuite) SetupTest() {
            env := s.GetConfig("env")
            if env == "test" {
                s.apiURL = "http://test.api.example.com"
            }
        }

        func (s *APISuite) TestAPIURL() {
            s.Equal("http://test.api.example.com", s.apiURL)
        }

        func TestAPISuite(t *testing.T) {
            suite.Run(t, new(APISuite))
        }

        // 组合多个关注点
        type IntegrationSuite struct {
            suite.Suite
            dbSuite  *DatabaseSuite
            apiSuite *APISuite
        }

        func (s *IntegrationSuite) SetupSuite() {
            // 注意:这只是示例,实际中通常不这样嵌套Suite
            s.dbSuite = &DatabaseSuite{}
            s.apiSuite = &APISuite{}
        }

        func (s *IntegrationSuite) TestIntegration() {
            s.NotNil(s.dbSuite)
            s.NotNil(s.apiSuite)
        }

        func TestIntegrationSuite(t *testing.T) {
            suite.Run(t, new(IntegrationSuite))
        }

        // 多层继承示例
        type ServiceBaseSuite struct {
            suite.Suite
            timeout int
        }

        func (s *ServiceBaseSuite) SetupSuite() {
            s.timeout = 30
        }

        type HTTPServiceSuite struct {
            ServiceBaseSuite
            client *HTTPClient
        }

        type HTTPClient struct{}

        func (s *HTTPServiceSuite) SetupTest() {
            s.client = &HTTPClient{}
        }

        func (s *HTTPServiceSuite) TestHTTPClient() {
            s.NotNil(s.client)
            s.Equal(30, s.timeout)
        }

        func TestHTTPServiceSuite(t *testing.T) {
            suite.Run(t, new(HTTPServiceSuite))
        }
        ---

03.大型项目组织
    a.包级组织
        将测试Suite按Go包组织,每个包的测试Suite放在对应的_test包中。保持测试代码与生产代码的结构对应。使用internal/testing包存放共享的测试辅助代码、Mock、夹具工厂等。
    b.分层测试策略
        区分单元测试Suite、集成测试Suite、端到端测试Suite。使用build tags区分不同类型的测试。单元测试快速且隔离,集成测试验证组件交互,E2E测试验证完整流程。分层使测试金字塔清晰。
    c.代码示例
        ---
        // 大型项目组织示例
        package largeproject

        import (
            "testing"
            "github.com/stretchr/testify/suite"
        )

        // 单元测试Suite
        type UnitTestSuite struct {
            suite.Suite
        }

        func (s *UnitTestSuite) TestBusinessLogic() {
            // 纯业务逻辑测试,无外部依赖
            result := calculateDiscount(100, 0.1)
            s.Equal(90.0, result)
        }

        func calculateDiscount(price, rate float64) float64 {
            return price * (1 - rate)
        }

        func TestUnitTestSuite(t *testing.T) {
            suite.Run(t, new(UnitTestSuite))
        }

        // 集成测试Suite
        // +build integration
        type IntegrationTestSuite struct {
            suite.Suite
            dbConn *DBConnection
        }

        func (s *IntegrationTestSuite) SetupSuite() {
            // 连接真实数据库
            s.dbConn = &DBConnection{}
        }

        func (s *IntegrationTestSuite) TestDatabaseIntegration() {
            // 测试与数据库的交互
            s.NotNil(s.dbConn)
        }

        func TestIntegrationTestSuite(t *testing.T) {
            // 使用: go test -tags=integration
            suite.Run(t, new(IntegrationTestSuite))
        }

        // E2E测试Suite
        // +build e2e
        type E2ETestSuite struct {
            suite.Suite
            server *TestServer
        }

        type TestServer struct{}

        func (s *E2ETestSuite) SetupSuite() {
            // 启动完整的测试环境
            s.server = &TestServer{}
        }

        func (s *E2ETestSuite) TestCompleteWorkflow() {
            // 测试端到端流程
            s.NotNil(s.server)
        }

        func TestE2ETestSuite(t *testing.T) {
            // 使用: go test -tags=e2e
            suite.Run(t, new(E2ETestSuite))
        }

        // 共享测试辅助
        type TestHelper struct{}

        func NewTestHelper() *TestHelper {
            return &TestHelper{}
        }

        // 多Suite协同
        type FeatureTestSuite struct {
            suite.Suite
            helper *TestHelper
        }

        func (s *FeatureTestSuite) SetupSuite() {
            s.helper = NewTestHelper()
        }

        func (s *FeatureTestSuite) TestFeatureA() {
            s.NotNil(s.helper)
        }

        func (s *FeatureTestSuite) TestFeatureB() {
            s.NotNil(s.helper)
        }

        func TestFeatureTestSuite(t *testing.T) {
            suite.Run(t, new(FeatureTestSuite))
        }
        ---

04.Suite组织最佳实践
    a.保持Suite专注
        每个Suite应该有明确的测试范围,不要让Suite变得过大。大Suite难以维护和理解。当Suite超过15-20个测试方法时,考虑拆分。根据功能、场景或测试类型拆分Suite。
    b.平衡粒度
        Suite不宜过细也不宜过粗。过细导致大量小Suite,增加管理成本。过粗导致Suite臃肿,难以定位问题。找到适合项目的平衡点。通常一个文件包含1-3个相关Suite是合理的。
    c.代码示例
        ---
        // Suite组织最佳实践
        package bestpractice

        import (
            "testing"
            "github.com/stretchr/testify/suite"
        )

        // ✅ 正确:专注的Suite
        type UserAuthenticationSuite struct {
            suite.Suite
            authService *AuthService
        }

        type AuthService struct{}

        func (s *AuthService) Login(username, password string) bool {
            return username != "" && password != ""
        }

        func (s *AuthService) Logout(sessionID string) bool {
            return true
        }

        func (s *UserAuthenticationSuite) SetupTest() {
            s.authService = &AuthService{}
        }

        func (s *UserAuthenticationSuite) TestSuccessfulLogin() {
            result := s.authService.Login("user", "pass")
            s.True(result)
        }

        func (s *UserAuthenticationSuite) TestFailedLogin() {
            result := s.authService.Login("", "")
            s.False(result)
        }

        func (s *UserAuthenticationSuite) TestLogout() {
            result := s.authService.Logout("session123")
            s.True(result)
        }

        func TestUserAuthenticationSuite(t *testing.T) {
            suite.Run(t, new(UserAuthenticationSuite))
        }

        // ✅ 正确:相关功能的独立Suite
        type UserProfileSuite struct {
            suite.Suite
            profileService *ProfileService
        }

        type ProfileService struct{}

        func (s *ProfileService) GetProfile(userID int) *Profile {
            return &Profile{UserID: userID}
        }

        type Profile struct {
            UserID int
        }

        func (s *UserProfileSuite) SetupTest() {
            s.profileService = &ProfileService{}
        }

        func (s *UserProfileSuite) TestGetProfile() {
            profile := s.profileService.GetProfile(1)
            s.NotNil(profile)
        }

        func TestUserProfileSuite(t *testing.T) {
            suite.Run(t, new(UserProfileSuite))
        }

        // ❌ 错误:过大的Suite(反面示例)
        type EverythingSuite struct {
            suite.Suite
            userService    *UserService
            orderService   *OrderService
            paymentGateway *PaymentGateway
            emailService   *EmailService
            authService    *AuthService
            // ... 太多依赖
        }

        type EmailService struct{}

        // 太多不相关的测试方法
        func (s *EverythingSuite) TestUserCreation() {}
        func (s *EverythingSuite) TestUserDeletion() {}
        func (s *EverythingSuite) TestOrderProcessing() {}
        func (s *EverythingSuite) TestPaymentProcessing() {}
        func (s *EverythingSuite) TestEmailSending() {}
        func (s *EverythingSuite) TestAuthentication() {}
        // ... 20+ more methods

        // ✅ 正确:清晰的文件组织
        // user_auth_test.go -> UserAuthenticationSuite
        // user_profile_test.go -> UserProfileSuite
        // order_processing_test.go -> OrderProcessingSuite
        // payment_test.go -> PaymentProcessingSuite

        // ✅ 正确:使用子测试组织复杂场景
        type ValidationSuite struct {
            suite.Suite
        }

        func (s *ValidationSuite) TestEmailValidation() {
            s.Run("valid emails", func() {
                // 多个有效邮箱测试
            })

            s.Run("invalid emails", func() {
                // 多个无效邮箱测试
            })
        }

        func (s *ValidationSuite) TestPasswordValidation() {
            s.Run("strong passwords", func() {
                // 强密码测试
            })

            s.Run("weak passwords", func() {
                // 弱密码测试
            })
        }

        func TestValidationSuite(t *testing.T) {
            suite.Run(t, new(ValidationSuite))
        }
        ---

6 高级特性

6.1 HTTP测试工具

01.http包简介
    a.testify/http功能
        testify的http包提供了HTTP测试工具,包括TestResponseRecorder用于记录HTTP响应。可以轻松测试HTTP handler而无需启动真实服务器。支持验证响应状态码、响应头、响应体等。这使HTTP层测试变得简单高效。
    b.与httptest的关系
        testify的http包是对标准库httptest的补充和增强。提供了更友好的断言API。可以与httptest.ResponseRecorder配合使用。通常两者结合使用能覆盖大部分HTTP测试需求。
    c.代码示例
        ---
        // HTTP测试工具基础
        package httptest

        import (
            "net/http"
            "net/http/httptest"
            "testing"
            "github.com/stretchr/testify/assert"
        )

        // 简单的HTTP handler
        func HelloHandler(w http.ResponseWriter, r *http.Request) {
            w.WriteHeader(http.StatusOK)
            w.Write([]byte("Hello, World!"))
        }

        func TestHelloHandler(t *testing.T) {
            req := httptest.NewRequest("GET", "/hello", nil)
            rec := httptest.NewRecorder()

            HelloHandler(rec, req)

            assert.Equal(t, http.StatusOK, rec.Code)
            assert.Equal(t, "Hello, World!", rec.Body.String())
        }

        // JSON响应handler
        func JSONHandler(w http.ResponseWriter, r *http.Request) {
            w.Header().Set("Content-Type", "application/json")
            w.WriteHeader(http.StatusOK)
            w.Write([]byte(`{"message":"success"}`))
        }

        func TestJSONHandler(t *testing.T) {
            req := httptest.NewRequest("GET", "/api/data", nil)
            rec := httptest.NewRecorder()

            JSONHandler(rec, req)

            assert.Equal(t, http.StatusOK, rec.Code)
            assert.Equal(t, "application/json", rec.Header().Get("Content-Type"))
            assert.Contains(t, rec.Body.String(), "success")
        }

        // 带参数的handler
        func EchoHandler(w http.ResponseWriter, r *http.Request) {
            name := r.URL.Query().Get("name")
            if name == "" {
                w.WriteHeader(http.StatusBadRequest)
                w.Write([]byte("name parameter required"))
                return
            }
            w.WriteHeader(http.StatusOK)
            w.Write([]byte("Hello, " + name))
        }

        func TestEchoHandler(t *testing.T) {
            t.Run("with name", func(t *testing.T) {
                req := httptest.NewRequest("GET", "/echo?name=Alice", nil)
                rec := httptest.NewRecorder()

                EchoHandler(rec, req)

                assert.Equal(t, http.StatusOK, rec.Code)
                assert.Equal(t, "Hello, Alice", rec.Body.String())
            })

            t.Run("without name", func(t *testing.T) {
                req := httptest.NewRequest("GET", "/echo", nil)
                rec := httptest.NewRecorder()

                EchoHandler(rec, req)

                assert.Equal(t, http.StatusBadRequest, rec.Code)
                assert.Contains(t, rec.Body.String(), "required")
            })
        }

        // POST请求测试
        func CreateHandler(w http.ResponseWriter, r *http.Request) {
            if r.Method != http.MethodPost {
                w.WriteHeader(http.StatusMethodNotAllowed)
                return
            }

            w.WriteHeader(http.StatusCreated)
            w.Write([]byte("created"))
        }

        func TestCreateHandler(t *testing.T) {
            req := httptest.NewRequest("POST", "/create", nil)
            rec := httptest.NewRecorder()

            CreateHandler(rec, req)

            assert.Equal(t, http.StatusCreated, rec.Code)
            assert.Equal(t, "created", rec.Body.String())
        }
        ---

02.测试HTTP客户端
    a.Mock HTTP服务器
        使用httptest.NewServer创建测试HTTP服务器。服务器在随机端口监听,返回预定义的响应。测试完成后记得关闭服务器。这种方式可以测试HTTP客户端代码而不依赖真实服务。
    b.请求验证
        在测试服务器的handler中可以验证请求的method、headers、body等。记录收到的请求,在测试中断言。这确保HTTP客户端发送了正确的请求。
    c.代码示例
        ---
        // 测试HTTP客户端
        package httpclient

        import (
            "io"
            "net/http"
            "net/http/httptest"
            "testing"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/require"
        )

        // HTTP客户端
        type APIClient struct {
            baseURL string
            client  *http.Client
        }

        func NewAPIClient(baseURL string) *APIClient {
            return &APIClient{
                baseURL: baseURL,
                client:  &http.Client{},
            }
        }

        func (c *APIClient) GetUser(id string) (string, error) {
            resp, err := c.client.Get(c.baseURL + "/users/" + id)
            if err != nil {
                return "", err
            }
            defer resp.Body.Close()

            body, err := io.ReadAll(resp.Body)
            if err != nil {
                return "", err
            }

            return string(body), nil
        }

        // 测试HTTP客户端
        func TestAPIClient_GetUser(t *testing.T) {
            // 创建测试服务器
            server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                assert.Equal(t, "/users/123", r.URL.Path)
                assert.Equal(t, "GET", r.Method)

                w.WriteHeader(http.StatusOK)
                w.Write([]byte(`{"id":"123","name":"Alice"}`))
            }))
            defer server.Close()

            // 创建客户端,指向测试服务器
            client := NewAPIClient(server.URL)

            // 执行请求
            result, err := client.GetUser("123")

            require.NoError(t, err)
            assert.Contains(t, result, "Alice")
        }

        // 测试错误场景
        func TestAPIClient_ServerError(t *testing.T) {
            server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                w.WriteHeader(http.StatusInternalServerError)
                w.Write([]byte("server error"))
            }))
            defer server.Close()

            client := NewAPIClient(server.URL)
            result, err := client.GetUser("999")

            require.NoError(t, err)
            assert.Contains(t, result, "error")
        }

        // 测试超时
        func TestAPIClient_Timeout(t *testing.T) {
            server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                // 模拟慢速响应
                // time.Sleep(2 * time.Second)
                w.WriteHeader(http.StatusOK)
            }))
            defer server.Close()

            client := NewAPIClient(server.URL)
            _, err := client.GetUser("1")

            // 这个示例不会超时,实际测试需要设置超时
            assert.NoError(t, err)
        }
        ---

6.2 表格驱动测试

01.表格驱动模式
    a.基本概念
        表格驱动测试使用数据结构数组定义测试用例,每个用例包含输入和期望输出。遍历数组,对每个用例执行相同的测试逻辑。这种模式减少重复代码,使测试用例清晰可见,易于添加新用例。
    b.优势
        测试逻辑和测试数据分离,提高可维护性。添加新测试用例只需添加数据,无需重复代码。测试用例一目了然,便于review和理解。适合测试相同逻辑的多种输入组合。
    c.代码示例
        ---
        // 表格驱动测试基础
        package tabledriven

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        // 被测函数
        func Add(a, b int) int {
            return a + b
        }

        func TestAdd(t *testing.T) {
            tests := []struct {
                name     string
                a, b     int
                expected int
            }{
                {"positive numbers", 2, 3, 5},
                {"negative numbers", -2, -3, -5},
                {"mixed sign", 10, -5, 5},
                {"zero", 0, 0, 0},
                {"with zero", 5, 0, 5},
            }

            for _, tt := range tests {
                t.Run(tt.name, func(t *testing.T) {
                    result := Add(tt.a, tt.b)
                    assert.Equal(t, tt.expected, result)
                })
            }
        }

        // 复杂测试用例
        func ValidateEmail(email string) bool {
            return len(email) > 3 && email[0] != '@'
        }

        func TestValidateEmail(t *testing.T) {
            tests := []struct {
                name     string
                email    string
                expected bool
            }{
                {"valid email", "user@example.com", true},
                {"valid with subdomain", "user@mail.example.com", true},
                {"invalid - no @", "userexample.com", true},
                {"invalid - starts with @", "@example.com", false},
                {"invalid - empty", "", false},
                {"invalid - too short", "a@b", false},
            }

            for _, tt := range tests {
                t.Run(tt.name, func(t *testing.T) {
                    result := ValidateEmail(tt.email)
                    assert.Equal(t, tt.expected, result,
                        "ValidateEmail(%q) should be %v", tt.email, tt.expected)
                })
            }
        }

        // 带错误的测试用例
        func Divide(a, b int) (int, error) {
            if b == 0 {
                return 0, assert.AnError
            }
            return a / b, nil
        }

        func TestDivide(t *testing.T) {
            tests := []struct {
                name        string
                a, b        int
                expectedVal int
                expectError bool
            }{
                {"normal division", 10, 2, 5, false},
                {"division by zero", 10, 0, 0, true},
                {"negative result", -10, 2, -5, false},
            }

            for _, tt := range tests {
                t.Run(tt.name, func(t *testing.T) {
                    result, err := Divide(tt.a, tt.b)

                    if tt.expectError {
                        assert.Error(t, err)
                    } else {
                        assert.NoError(t, err)
                        assert.Equal(t, tt.expectedVal, result)
                    }
                })
            }
        }
        ---

02.与Suite结合
    a.Suite中的表格驱动
        在testify Suite中使用表格驱动测试结合了两者的优势。Suite提供setup/teardown和共享状态,表格驱动提供清晰的测试用例组织。在Suite的测试方法中定义测试表格并遍历。
    b.共享夹具访问
        表格驱动测试中的子测试可以访问Suite的字段和方法。可以在setup中准备数据,在表格用例中使用。这避免了在每个用例中重复初始化。
    c.代码示例
        ---
        // Suite与表格驱动结合
        package suitetable

        import (
            "testing"
            "github.com/stretchr/testify/suite"
        )

        type CalculatorSuite struct {
            suite.Suite
            calculator *Calculator
        }

        type Calculator struct{}

        func (c *Calculator) Add(a, b int) int      { return a + b }
        func (c *Calculator) Subtract(a, b int) int { return a - b }
        func (c *Calculator) Multiply(a, b int) int { return a * b }

        func (s *CalculatorSuite) SetupTest() {
            s.calculator = &Calculator{}
        }

        func (s *CalculatorSuite) TestAddition() {
            tests := []struct {
                name     string
                a, b     int
                expected int
            }{
                {"2+3", 2, 3, 5},
                {"0+0", 0, 0, 0},
                {"-1+1", -1, 1, 0},
            }

            for _, tt := range tests {
                s.Run(tt.name, func() {
                    result := s.calculator.Add(tt.a, tt.b)
                    s.Equal(tt.expected, result)
                })
            }
        }

        func (s *CalculatorSuite) TestSubtraction() {
            tests := []struct {
                name     string
                a, b     int
                expected int
            }{
                {"5-3", 5, 3, 2},
                {"0-0", 0, 0, 0},
                {"1-2", 1, 2, -1},
            }

            for _, tt := range tests {
                s.Run(tt.name, func() {
                    result := s.calculator.Subtract(tt.a, tt.b)
                    s.Equal(tt.expected, result)
                })
            }
        }

        func TestCalculatorSuite(t *testing.T) {
            suite.Run(t, new(CalculatorSuite))
        }

        // 复杂示例:使用Suite夹具
        type UserServiceSuite struct {
            suite.Suite
            service   *UserService
            testUsers []*User
        }

        type UserService struct {
            users map[int]*User
        }

        func (s *UserService) GetUser(id int) *User {
            return s.users[id]
        }

        type User struct {
            ID   int
            Name string
            Age  int
        }

        func (s *UserServiceSuite) SetupTest() {
            s.service = &UserService{
                users: make(map[int]*User),
            }

            s.testUsers = []*User{
                {ID: 1, Name: "Alice", Age: 25},
                {ID: 2, Name: "Bob", Age: 30},
                {ID: 3, Name: "Charlie", Age: 35},
            }

            for _, user := range s.testUsers {
                s.service.users[user.ID] = user
            }
        }

        func (s *UserServiceSuite) TestGetUser() {
            tests := []struct {
                name     string
                userID   int
                expected *User
            }{
                {"get Alice", 1, s.testUsers[0]},
                {"get Bob", 2, s.testUsers[1]},
                {"get Charlie", 3, s.testUsers[2]},
            }

            for _, tt := range tests {
                s.Run(tt.name, func() {
                    user := s.service.GetUser(tt.userID)
                    s.Equal(tt.expected, user)
                })
            }
        }

        func TestUserServiceSuite(t *testing.T) {
            suite.Run(t, new(UserServiceSuite))
        }
        ---

6.3 测试覆盖率

01.覆盖率统计
    a.go test -cover
        使用go test -cover运行测试并显示覆盖率百分比。覆盖率表示被测试执行到的代码行数占总代码行数的比例。高覆盖率不等于高质量,但低覆盖率通常意味着测试不充分。覆盖率是测试完整性的一个重要指标。
    b.覆盖率报告
        使用-coverprofile生成覆盖率文件,用go tool cover -html查看HTML报告。报告以颜色标示哪些代码被覆盖(绿色)、哪些未覆盖(红色)。这帮助识别测试盲点,指导补充测试用例。
    c.代码示例
        ---
        // 覆盖率测试示例
        package coverage

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        // 被测函数
        func ProcessData(input string) string {
            if input == "" {
                return "empty"
            }

            if len(input) < 3 {
                return "short"
            }

            if input == "special" {
                return "special case"
            }

            return "normal: " + input
        }

        // 测试覆盖所有分支
        func TestProcessData_FullCoverage(t *testing.T) {
            tests := []struct {
                input    string
                expected string
            }{
                {"", "empty"},
                {"ab", "short"},
                {"special", "special case"},
                {"normal input", "normal: normal input"},
            }

            for _, tt := range tests {
                t.Run(tt.input, func(t *testing.T) {
                    result := ProcessData(tt.input)
                    assert.Equal(t, tt.expected, result)
                })
            }
        }

        // 运行命令:
        // go test -cover
        // go test -coverprofile=coverage.out
        // go tool cover -html=coverage.out
        ---

02.提高覆盖率策略
    a.识别未覆盖代码
        查看覆盖率报告,找出未被测试的代码路径。关注错误处理分支、边界条件、异常场景。优先为核心业务逻辑和复杂逻辑增加测试。不要为了覆盖率而测试,要关注测试的价值。
    b.边界值测试
        测试函数在边界条件下的行为如空输入、最大值、最小值等。边界往往是bug高发区。表格驱动测试很适合覆盖多种边界情况。确保所有if、switch分支都被至少测试一次。
    c.代码示例
        ---
        // 提高覆盖率示例
        package improvecoverage

        import (
            "errors"
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func ValidateAge(age int) error {
            if age < 0 {
                return errors.New("age cannot be negative")
            }
            if age > 150 {
                return errors.New("age too large")
            }
            if age < 18 {
                return errors.New("must be adult")
            }
            return nil
        }

        // 完整覆盖所有分支
        func TestValidateAge(t *testing.T) {
            tests := []struct {
                name        string
                age         int
                expectError bool
                errorMsg    string
            }{
                {"negative age", -1, true, "negative"},
                {"too old", 200, true, "too large"},
                {"minor", 10, true, "adult"},
                {"adult", 25, false, ""},
                {"boundary min", 18, false, ""},
                {"boundary max", 150, false, ""},
            }

            for _, tt := range tests {
                t.Run(tt.name, func(t *testing.T) {
                    err := ValidateAge(tt.age)

                    if tt.expectError {
                        assert.Error(t, err)
                        if tt.errorMsg != "" {
                            assert.Contains(t, err.Error(), tt.errorMsg)
                        }
                    } else {
                        assert.NoError(t, err)
                    }
                })
            }
        }
        ---

6.4 基准测试集成

01.基准测试基础
    a.Benchmark函数
        Go的基准测试函数以Benchmark开头,接收*testing.B参数。在循环中执行被测代码b.N次,Go自动调整N直到结果稳定。使用go test -bench运行基准测试。基准测试衡量代码性能,识别瓶颈。
    b.与testify结合
        testify的断言可以在基准测试的setup阶段使用,但不要在b.N循环内使用断言,会影响性能测量。可以在基准测试后验证结果正确性。基准测试关注性能,单元测试关注正确性,两者互补。
    c.代码示例
        ---
        // 基准测试示例
        package bench

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func Fibonacci(n int) int {
            if n <= 1 {
                return n
            }
            return Fibonacci(n-1) + Fibonacci(n-2)
        }

        func BenchmarkFibonacci(b *testing.B) {
            for i := 0; i < b.N; i++ {
                Fibonacci(20)
            }
        }

        // 不同输入的基准测试
        func BenchmarkFibonacci10(b *testing.B) {
            for i := 0; i < b.N; i++ {
                Fibonacci(10)
            }
        }

        func BenchmarkFibonacci20(b *testing.B) {
            for i := 0; i < b.N; i++ {
                Fibonacci(20)
            }
        }

        // 使用testify验证结果
        func TestFibonacciCorrectness(t *testing.T) {
            assert.Equal(t, 0, Fibonacci(0))
            assert.Equal(t, 1, Fibonacci(1))
            assert.Equal(t, 55, Fibonacci(10))
        }

        // 运行:go test -bench=. -benchmem
        ---

6.5 并发安全测试

01.Data Race检测
    a.go test -race
        使用-race标志运行测试,启用Go的data race detector。检测并发访问共享变量时的竞态条件。发现race时会输出详细报告包括冲突的goroutine和代码位置。所有并发代码都应该用-race测试。
    b.常见竞态场景
        多个goroutine同时读写map。多个goroutine修改同一变量。闭包捕获循环变量。使用mutex、channel或atomic操作保护共享状态。testify的断言本身不是并发安全的。
    c.代码示例
        ---
        // 并发安全测试
        package racefree

        import (
            "sync"
            "sync/atomic"
            "testing"
            "github.com/stretchr/testify/assert"
        )

        // ❌ 不安全的计数器
        type UnsafeCounter struct {
            count int
        }

        func (c *UnsafeCounter) Inc() {
            c.count++
        }

        // ✅ 安全的计数器
        type SafeCounter struct {
            mu    sync.Mutex
            count int
        }

        func (c *SafeCounter) Inc() {
            c.mu.Lock()
            c.count++
            c.mu.Unlock()
        }

        func (c *SafeCounter) Value() int {
            c.mu.Lock()
            defer c.mu.Unlock()
            return c.count
        }

        func TestSafeCounter(t *testing.T) {
            counter := &SafeCounter{}
            var wg sync.WaitGroup

            for i := 0; i < 1000; i++ {
                wg.Add(1)
                go func() {
                    defer wg.Done()
                    counter.Inc()
                }()
            }

            wg.Wait()
            assert.Equal(t, 1000, counter.Value())
        }

        // 使用atomic的计数器
        type AtomicCounter struct {
            count int64
        }

        func (c *AtomicCounter) Inc() {
            atomic.AddInt64(&c.count, 1)
        }

        func (c *AtomicCounter) Value() int64 {
            return atomic.LoadInt64(&c.count)
        }

        func TestAtomicCounter(t *testing.T) {
            counter := &AtomicCounter{}
            var wg sync.WaitGroup

            for i := 0; i < 1000; i++ {
                wg.Add(1)
                go func() {
                    defer wg.Done()
                    counter.Inc()
                }()
            }

            wg.Wait()
            assert.Equal(t, int64(1000), counter.Value())
        }

        // 运行:go test -race
        ---

6.6 测试辅助函数

01.自定义断言辅助
    a.封装复杂断言
        将重复的复杂断言封装成辅助函数。辅助函数接收*testing.T和待验证的值。这减少重复代码,使测试更清晰。辅助函数应该调用t.Helper()标记自己为helper,错误时报告正确的行号。
    b.领域特定断言
        为项目特定的数据类型创建断言函数。例如验证自定义结构体、检查业务规则等。这使测试代码更贴近业务语言,提高可读性。辅助函数可以在多个测试间复用。
    c.代码示例
        ---
        // 测试辅助函数
        package helpers

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        type User struct {
            ID    int
            Name  string
            Email string
            Age   int
        }

        // 自定义断言辅助函数
        func AssertValidUser(t *testing.T, user *User) {
            t.Helper()

            assert.NotNil(t, user)
            assert.Greater(t, user.ID, 0)
            assert.NotEmpty(t, user.Name)
            assert.Contains(t, user.Email, "@")
            assert.GreaterOrEqual(t, user.Age, 0)
        }

        func TestUserCreation(t *testing.T) {
            user := &User{
                ID:    1,
                Name:  "Alice",
                Email: "alice@example.com",
                Age:   25,
            }

            AssertValidUser(t, user)
        }

        // 领域特定断言
        func AssertAdultUser(t *testing.T, user *User) {
            t.Helper()

            AssertValidUser(t, user)
            assert.GreaterOrEqual(t, user.Age, 18, "user must be adult")
        }

        func TestAdultUser(t *testing.T) {
            user := &User{ID: 1, Name: "Bob", Email: "bob@test.com", Age: 30}
            AssertAdultUser(t, user)
        }

        // 集合验证辅助
        func AssertAllUsersValid(t *testing.T, users []*User) {
            t.Helper()

            assert.NotEmpty(t, users)
            for i, user := range users {
                assert.NotNil(t, user, "user at index %d should not be nil", i)
                AssertValidUser(t, user)
            }
        }

        func TestUserList(t *testing.T) {
            users := []*User{
                {ID: 1, Name: "Alice", Email: "a@test.com", Age: 25},
                {ID: 2, Name: "Bob", Email: "b@test.com", Age: 30},
            }

            AssertAllUsersValid(t, users)
        }
        ---

6.7 与CI/CD集成

01.持续集成配置
    a.GitHub Actions
        在.github/workflows创建workflow文件配置CI。运行go test执行测试,使用go test -race检测竞态条件。可以配置多个Go版本矩阵测试。CI确保每次提交都运行测试,及早发现问题。
    b.测试报告
        使用-json输出JSON格式的测试结果,便于CI系统解析。配置覆盖率上传到Codecov或Coveralls。设置测试失败时阻止合并。CI提供可视化的测试结果和趋势。
    c.代码示例
        ---
        # GitHub Actions配置示例
        # .github/workflows/test.yml
        name: Tests

        on: [push, pull_request]

        jobs:
          test:
            runs-on: ubuntu-latest
            strategy:
              matrix:
                go-version: [1.20, 1.21, 1.22]

            steps:
            - uses: actions/checkout@v3

            - name: Set up Go
              uses: actions/setup-go@v4
              with:
                go-version: ${{ matrix.go-version }}

            - name: Install dependencies
              run: go mod download

            - name: Run tests
              run: go test -v -race -coverprofile=coverage.out ./...

            - name: Upload coverage
              uses: codecov/codecov-action@v3
              with:
                file: ./coverage.out
        ---

02.测试优化
    a.并行测试
        使用t.Parallel()标记可并行的测试。CI环境通常有多核CPU,并行测试大幅减少总时间。确保并行测试间完全独立。可以配置GOMAXPROCS控制并行度。
    b.测试缓存
        Go自动缓存测试结果,未改变的测试不重复运行。使用go clean -testcache清除缓存。CI环境可以缓存go module和build cache加速。
    c.代码示例
        ---
        // CI优化示例
        package cioptimize

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        // 快速单元测试 - 总是并行
        func TestFastUnit(t *testing.T) {
            t.Parallel()
            assert.Equal(t, 4, 2+2)
        }

        // 慢速集成测试 - 使用build tag隔离
        // +build integration
        func TestSlowIntegration(t *testing.T) {
            // 不并行,需要独占资源
            assert.True(t, true)
        }

        // CI命令示例:
        // 快速反馈:go test -short ./...
        // 完整测试:go test -v ./...
        // 集成测试:go test -tags=integration ./...
        ---

6.8 测试数据生成

01.测试数据生成策略
    a.手动构造
        对于简单场景,手动创建测试数据最直接。使用字面量或简单的构造函数。适合数据结构简单、用例少的情况。手动数据易于理解和维护。
    b.工厂函数
        创建工厂函数生成常用的测试数据。工厂可以接收参数定制数据。复用工厂函数减少重复代码。可以为不同场景创建多个工厂变体。
    c.代码示例
        ---
        // 测试数据生成
        package testdata

        import (
            "fmt"
            "testing"
            "github.com/stretchr/testify/assert"
        )

        type Product struct {
            ID    int
            Name  string
            Price float64
            Stock int
        }

        // 简单工厂
        func NewTestProduct(id int) *Product {
            return &Product{
                ID:    id,
                Name:  fmt.Sprintf("Product%d", id),
                Price: 99.99,
                Stock: 100,
            }
        }

        // 可定制工厂
        func NewTestProductWithPrice(id int, price float64) *Product {
            p := NewTestProduct(id)
            p.Price = price
            return p
        }

        // Builder模式生成
        type ProductBuilder struct {
            product *Product
        }

        func NewProductBuilder() *ProductBuilder {
            return &ProductBuilder{
                product: &Product{
                    Price: 0,
                    Stock: 0,
                },
            }
        }

        func (b *ProductBuilder) WithID(id int) *ProductBuilder {
            b.product.ID = id
            return b
        }

        func (b *ProductBuilder) WithName(name string) *ProductBuilder {
            b.product.Name = name
            return b
        }

        func (b *ProductBuilder) WithPrice(price float64) *ProductBuilder {
            b.product.Price = price
            return b
        }

        func (b *ProductBuilder) Build() *Product {
            return b.product
        }

        func TestProductCreation(t *testing.T) {
            // 使用工厂
            p1 := NewTestProduct(1)
            assert.Equal(t, 1, p1.ID)

            // 使用Builder
            p2 := NewProductBuilder().
                WithID(2).
                WithName("Custom").
                WithPrice(49.99).
                Build()

            assert.Equal(t, "Custom", p2.Name)
            assert.Equal(t, 49.99, p2.Price)
        }

        // 批量生成
        func GenerateTestProducts(count int) []*Product {
            products := make([]*Product, count)
            for i := 0; i < count; i++ {
                products[i] = NewTestProduct(i + 1)
            }
            return products
        }

        func TestBulkProducts(t *testing.T) {
            products := GenerateTestProducts(10)
            assert.Len(t, products, 10)
        }
        ---

02.随机数据与属性测试
    a.随机测试数据
        使用随机数生成测试数据可以发现边界情况。设置固定seed确保测试可重复。随机测试不应替代精心设计的测试用例,而是补充。记录seed值以便复现失败。
    b.属性测试思想
        属性测试验证代码的通用属性而非具体输入输出。例如测试排序函数的结果总是有序的。Go生态有gopter等属性测试库。testify主要用于传统基于示例的测试。
    c.代码示例
        ---
        // 随机测试数据
        package random

        import (
            "math/rand"
            "testing"
            "time"
            "github.com/stretchr/testify/assert"
        )

        func init() {
            // 设置固定seed使测试可重复
            rand.Seed(42)
        }

        func GenerateRandomUser() *User {
            return &User{
                ID:   rand.Intn(10000),
                Name: fmt.Sprintf("User%d", rand.Intn(1000)),
                Age:  rand.Intn(80) + 18,
            }
        }

        func TestRandomUsers(t *testing.T) {
            for i := 0; i < 100; i++ {
                user := GenerateRandomUser()

                // 验证不变属性
                assert.Greater(t, user.ID, 0)
                assert.NotEmpty(t, user.Name)
                assert.GreaterOrEqual(t, user.Age, 18)
            }
        }

        // 属性测试示例
        func Reverse(s string) string {
            runes := []rune(s)
            for i, j := 0, len(runes)-1; i < j; i, j = i+1, j-1 {
                runes[i], runes[j] = runes[j], runes[i]
            }
            return string(runes)
        }

        func TestReverseProperty(t *testing.T) {
            // 属性:反转两次得到原字符串
            inputs := []string{"hello", "world", "test", "12345", ""}

            for _, input := range inputs {
                result := Reverse(Reverse(input))
                assert.Equal(t, input, result,
                    "Reverse(Reverse(x)) should equal x")
            }
        }
        ---

7 实战应用

7.1 安装与配置

01.安装testify
    a.使用go get
        执行go get github.com/stretchr/testify安装testify。这会下载testify及其依赖到项目的go.mod文件。testify是纯Go实现,无需额外依赖。安装后即可在测试文件中import使用。
    b.版本管理
        使用go.mod管理testify版本。执行go get github.com/stretchr/testify@latest获取最新版本。可以指定特定版本如@v1.8.4。使用go mod tidy清理未使用的依赖。定期更新获取bug修复和新特性。
    c.代码示例
        ---
        // 安装命令
        // $ go get github.com/stretchr/testify

        // go.mod示例
        module myproject

        go 1.21

        require (
            github.com/stretchr/testify v1.8.4
        )

        // 基本使用示例
        package main

        import (
            "testing"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/require"
            "github.com/stretchr/testify/suite"
            "github.com/stretchr/testify/mock"
        )

        func TestBasicSetup(t *testing.T) {
            // 使用assert
            assert.Equal(t, 2, 1+1)

            // 使用require
            require.NotNil(t, &struct{}{})
        }

        // 版本更新命令
        // $ go get -u github.com/stretchr/testify
        // $ go get github.com/stretchr/testify@v1.8.4
        // $ go mod tidy
        ---

02.项目结构
    a.测试文件组织
        测试文件与源文件放在同一目录,命名为xxx_test.go。使用package xxx_test创建黑盒测试,或package xxx创建白盒测试。黑盒测试只能访问导出的API,更接近用户视角。白盒测试可以访问内部实现,便于测试内部逻辑。
    b.测试辅助代码
        创建testing包或testutil目录存放共享的测试辅助代码。包括Mock定义、测试数据工厂、自定义断言等。避免在生产代码中引用测试辅助代码。使用internal/testing限制测试辅助代码的可见性。
    c.代码示例
        ---
        // 项目结构示例
        myproject/
        ├── go.mod
        ├── go.sum
        ├── cmd/
        │   └── app/
        │       ├── main.go
        │       └── main_test.go
        ├── internal/
        │   ├── service/
        │   │   ├── user.go
        │   │   └── user_test.go
        │   └── testing/
        │       ├── mocks.go
        │       └── factories.go
        ├── pkg/
        │   └── api/
        │       ├── handler.go
        │       └── handler_test.go
        └── test/
            ├── integration/
            │   └── api_test.go
            └── e2e/
                └── workflow_test.go

        // 黑盒测试示例 (package xxx_test)
        package service_test

        import (
            "testing"
            "myproject/internal/service"
            "github.com/stretchr/testify/assert"
        )

        func TestUserService(t *testing.T) {
            svc := service.NewUserService()
            // 只能访问导出的方法
            assert.NotNil(t, svc)
        }

        // 白盒测试示例 (package xxx)
        package service

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func TestInternalLogic(t *testing.T) {
            // 可以访问未导出的函数和字段
            result := internalHelper()
            assert.NotEmpty(t, result)
        }

        func internalHelper() string {
            return "internal"
        }
        ---

03.IDE集成
    a.VSCode配置
        安装Go扩展获得测试支持。可以在测试函数上方点击"run test"或"debug test"。配置settings.json设置测试参数如-v、-race。使用Test Explorer查看和运行所有测试。
    b.GoLand配置
        GoLand内置testify支持,自动识别测试。右键测试函数选择Run或Debug。可以配置Run Configuration添加测试参数。查看测试覆盖率高亮显示覆盖的代码。
    c.代码示例
        ---
        // VSCode settings.json配置
        {
            "go.testFlags": ["-v", "-race"],
            "go.coverOnSave": true,
            "go.coverageDecorator": {
                "type": "gutter"
            }
        }

        // GoLand Run Configuration
        // Run > Edit Configurations > Go Test
        // Program arguments: -v -race -cover

        // 命令行运行
        // $ go test -v ./...
        // $ go test -v -race -cover ./...
        // $ go test -v -run TestSpecific
        ---

7.2 单元测试实战

01.业务逻辑测试
    a.测试纯函数
        纯函数没有副作用,输入确定则输出确定。是最容易测试的代码。使用表格驱动测试覆盖多种输入。纯函数测试快速且可靠,应该占单元测试的大部分。
    b.测试有状态对象
        对于有内部状态的对象,在SetupTest中初始化干净状态。测试状态转换逻辑,验证操作后状态正确。使用Suite组织相关的状态测试。每个测试应该独立,不依赖其他测试的状态。
    c.代码示例
        ---
        // 单元测试实战
        package unittest

        import (
            "errors"
            "testing"
            "github.com/stretchr/testify/assert"
            "github.com/stretchr/testify/suite"
        )

        // 纯函数测试
        func CalculateDiscount(price float64, percent float64) float64 {
            if percent < 0 || percent > 100 {
                return price
            }
            return price * (1 - percent/100)
        }

        func TestCalculateDiscount(t *testing.T) {
            tests := []struct {
                name     string
                price    float64
                percent  float64
                expected float64
            }{
                {"10% off", 100.0, 10, 90.0},
                {"50% off", 100.0, 50, 50.0},
                {"no discount", 100.0, 0, 100.0},
                {"invalid negative", 100.0, -10, 100.0},
                {"invalid over 100", 100.0, 150, 100.0},
            }

            for _, tt := range tests {
                t.Run(tt.name, func(t *testing.T) {
                    result := CalculateDiscount(tt.price, tt.percent)
                    assert.InDelta(t, tt.expected, result, 0.01)
                })
            }
        }

        // 有状态对象测试
        type ShoppingCart struct {
            items []Item
            total float64
        }

        type Item struct {
            Name  string
            Price float64
            Qty   int
        }

        func NewShoppingCart() *ShoppingCart {
            return &ShoppingCart{
                items: make([]Item, 0),
                total: 0,
            }
        }

        func (c *ShoppingCart) AddItem(item Item) {
            c.items = append(c.items, item)
            c.total += item.Price * float64(item.Qty)
        }

        func (c *ShoppingCart) RemoveItem(name string) error {
            for i, item := range c.items {
                if item.Name == name {
                    c.total -= item.Price * float64(item.Qty)
                    c.items = append(c.items[:i], c.items[i+1:]...)
                    return nil
                }
            }
            return errors.New("item not found")
        }

        func (c *ShoppingCart) GetTotal() float64 {
            return c.total
        }

        type ShoppingCartSuite struct {
            suite.Suite
            cart *ShoppingCart
        }

        func (s *ShoppingCartSuite) SetupTest() {
            s.cart = NewShoppingCart()
        }

        func (s *ShoppingCartSuite) TestAddItem() {
            item := Item{Name: "Product1", Price: 10.0, Qty: 2}
            s.cart.AddItem(item)

            s.Len(s.cart.items, 1)
            s.Equal(20.0, s.cart.GetTotal())
        }

        func (s *ShoppingCartSuite) TestAddMultipleItems() {
            s.cart.AddItem(Item{Name: "P1", Price: 10.0, Qty: 1})
            s.cart.AddItem(Item{Name: "P2", Price: 20.0, Qty: 2})

            s.Len(s.cart.items, 2)
            s.Equal(50.0, s.cart.GetTotal())
        }

        func (s *ShoppingCartSuite) TestRemoveItem() {
            s.cart.AddItem(Item{Name: "P1", Price: 10.0, Qty: 1})
            s.cart.AddItem(Item{Name: "P2", Price: 20.0, Qty: 1})

            err := s.cart.RemoveItem("P1")

            s.NoError(err)
            s.Len(s.cart.items, 1)
            s.Equal(20.0, s.cart.GetTotal())
        }

        func (s *ShoppingCartSuite) TestRemoveNonexistentItem() {
            err := s.cart.RemoveItem("nonexistent")
            s.Error(err)
        }

        func TestShoppingCartSuite(t *testing.T) {
            suite.Run(t, new(ShoppingCartSuite))
        }
        ---

02.错误处理测试
    a.预期错误测试
        使用assert.Error验证函数返回错误。使用assert.ErrorIs或assert.ErrorAs验证特定错误类型。测试错误消息是否包含必要信息。错误处理是代码健壮性的关键,必须充分测试。
    b.错误场景覆盖
        测试各种可能导致错误的输入。包括nil参数、无效参数、资源不可用等。确保错误路径也被测试覆盖。错误测试帮助发现异常场景下的问题。
    c.代码示例
        ---
        // 错误处理测试
        package errorhandling

        import (
            "errors"
            "testing"
            "github.com/stretchr/testify/assert"
        )

        var (
            ErrInvalidInput = errors.New("invalid input")
            ErrNotFound     = errors.New("not found")
        )

        func ProcessUser(id int) (*User, error) {
            if id <= 0 {
                return nil, ErrInvalidInput
            }
            if id == 999 {
                return nil, ErrNotFound
            }
            return &User{ID: id, Name: "User"}, nil
        }

        func TestProcessUser_Success(t *testing.T) {
            user, err := ProcessUser(1)

            assert.NoError(t, err)
            assert.NotNil(t, user)
            assert.Equal(t, 1, user.ID)
        }

        func TestProcessUser_InvalidInput(t *testing.T) {
            user, err := ProcessUser(-1)

            assert.Error(t, err)
            assert.Nil(t, user)
            assert.ErrorIs(t, err, ErrInvalidInput)
        }

        func TestProcessUser_NotFound(t *testing.T) {
            user, err := ProcessUser(999)

            assert.Error(t, err)
            assert.Nil(t, user)
            assert.ErrorIs(t, err, ErrNotFound)
        }

        // 表格驱动错误测试
        func TestProcessUser_AllCases(t *testing.T) {
            tests := []struct {
                name        string
                id          int
                expectError bool
                expectedErr error
            }{
                {"valid", 1, false, nil},
                {"zero id", 0, true, ErrInvalidInput},
                {"negative id", -1, true, ErrInvalidInput},
                {"not found", 999, true, ErrNotFound},
            }

            for _, tt := range tests {
                t.Run(tt.name, func(t *testing.T) {
                    user, err := ProcessUser(tt.id)

                    if tt.expectError {
                        assert.Error(t, err)
                        assert.Nil(t, user)
                        if tt.expectedErr != nil {
                            assert.ErrorIs(t, err, tt.expectedErr)
                        }
                    } else {
                        assert.NoError(t, err)
                        assert.NotNil(t, user)
                    }
                })
            }
        }
        ---

7.3 集成测试实战

01.数据库集成测试
    a.测试数据库设置
        使用测试数据库或容器化数据库如docker的MySQL/PostgreSQL。在SetupSuite中建立数据库连接,在TearDownSuite中关闭。在SetupTest中准备测试数据,在TearDownTest中清理。确保测试数据不污染生产环境。
    b.事务回滚策略
        在测试中使用事务,测试结束后回滚保持数据库干净。每个测试在事务中执行,互不影响。这比清空表更快且更安全。适合大多数数据库集成测试场景。
    c.代码示例
        ---
        // 数据库集成测试
        package dbintegration

        import (
            "database/sql"
            "testing"
            "github.com/stretchr/testify/suite"
        )

        type DatabaseSuite struct {
            suite.Suite
            db *sql.DB
        }

        func (s *DatabaseSuite) SetupSuite() {
            // 连接测试数据库
            var err error
            s.db, err = sql.Open("mysql", "test:test@tcp(localhost:3306)/testdb")
            s.Require().NoError(err)

            // 创建测试表
            _, err = s.db.Exec(`
                CREATE TABLE IF NOT EXISTS users (
                    id INT PRIMARY KEY AUTO_INCREMENT,
                    name VARCHAR(100),
                    email VARCHAR(100)
                )
            `)
            s.Require().NoError(err)
        }

        func (s *DatabaseSuite) TearDownSuite() {
            // 清理并关闭连接
            s.db.Exec("DROP TABLE IF EXISTS users")
            s.db.Close()
        }

        func (s *DatabaseSuite) TearDownTest() {
            // 每个测试后清空数据
            s.db.Exec("DELETE FROM users")
        }

        func (s *DatabaseSuite) TestInsertUser() {
            result, err := s.db.Exec(
                "INSERT INTO users (name, email) VALUES (?, ?)",
                "Alice", "alice@test.com",
            )

            s.NoError(err)
            id, err := result.LastInsertId()
            s.NoError(err)
            s.Greater(id, int64(0))
        }

        func (s *DatabaseSuite) TestQueryUser() {
            // 插入测试数据
            s.db.Exec("INSERT INTO users (name, email) VALUES (?, ?)",
                "Bob", "bob@test.com")

            // 查询
            var name, email string
            err := s.db.QueryRow("SELECT name, email FROM users WHERE name = ?", "Bob").
                Scan(&name, &email)

            s.NoError(err)
            s.Equal("Bob", name)
            s.Equal("bob@test.com", email)
        }

        func TestDatabaseSuite(t *testing.T) {
            suite.Run(t, new(DatabaseSuite))
        }
        ---

02.HTTP API集成测试
    a.测试HTTP服务
        使用httptest.NewServer启动测试服务器。发送真实的HTTP请求并验证响应。测试完整的请求-响应流程包括路由、中间件、handler。比单独测试handler更接近真实场景。
    b.端到端API测试
        测试完整的API工作流程如用户注册、登录、操作资源。使用真实的HTTP客户端或测试客户端。验证状态码、响应体、响应头。可以测试认证、授权、错误处理等。
    c.代码示例
        ---
        // HTTP API集成测试
        package apiintegration

        import (
            "encoding/json"
            "net/http"
            "net/http/httptest"
            "strings"
            "testing"
            "github.com/stretchr/testify/suite"
        )

        type APISuite struct {
            suite.Suite
            server *httptest.Server
            client *http.Client
        }

        func (s *APISuite) SetupSuite() {
            // 创建测试服务器
            mux := http.NewServeMux()
            mux.HandleFunc("/users", s.handleUsers)
            mux.HandleFunc("/users/", s.handleUserByID)

            s.server = httptest.NewServer(mux)
            s.client = &http.Client{}
        }

        func (s *APISuite) TearDownSuite() {
            s.server.Close()
        }

        func (s *APISuite) handleUsers(w http.ResponseWriter, r *http.Request) {
            switch r.Method {
            case "GET":
                json.NewEncoder(w).Encode([]User{
                    {ID: 1, Name: "Alice"},
                    {ID: 2, Name: "Bob"},
                })
            case "POST":
                w.WriteHeader(http.StatusCreated)
                json.NewEncoder(w).Encode(User{ID: 3, Name: "New"})
            }
        }

        func (s *APISuite) handleUserByID(w http.ResponseWriter, r *http.Request) {
            json.NewEncoder(w).Encode(User{ID: 1, Name: "Alice"})
        }

        func (s *APISuite) TestGetUsers() {
            resp, err := s.client.Get(s.server.URL + "/users")
            s.Require().NoError(err)
            defer resp.Body.Close()

            s.Equal(http.StatusOK, resp.StatusCode)

            var users []User
            err = json.NewDecoder(resp.Body).Decode(&users)
            s.NoError(err)
            s.Len(users, 2)
        }

        func (s *APISuite) TestCreateUser() {
            body := strings.NewReader(`{"name":"Charlie"}`)
            resp, err := s.client.Post(s.server.URL+"/users",
                "application/json", body)
            s.Require().NoError(err)
            defer resp.Body.Close()

            s.Equal(http.StatusCreated, resp.StatusCode)

            var user User
            err = json.NewDecoder(resp.Body).Decode(&user)
            s.NoError(err)
            s.Equal("New", user.Name)
        }

        func TestAPISuite(t *testing.T) {
            suite.Run(t, new(APISuite))
        }
        ---

7.4 Mock实战案例

01.Mock外部依赖
    a.Mock数据库
        创建数据库接口的Mock实现,控制查询返回的数据。可以测试成功和失败场景,无需真实数据库。Mock使测试快速且可重复。验证数据库方法被正确调用。
    b.Mock HTTP客户端
        Mock HTTP客户端避免真实网络请求。可以模拟各种响应如成功、超时、错误。测试客户端代码如何处理不同响应。Mock使测试不依赖外部服务。
    c.代码示例
        ---
        // Mock实战案例
        package mockpractice

        import (
            "errors"
            "testing"
            "github.com/stretchr/testify/mock"
            "github.com/stretchr/testify/suite"
        )

        // 数据库接口
        type UserRepository interface {
            FindByID(id int) (*User, error)
            Save(user *User) error
            Delete(id int) error
        }

        // Mock实现
        type MockUserRepository struct {
            mock.Mock
        }

        func (m *MockUserRepository) FindByID(id int) (*User, error) {
            args := m.Called(id)
            if args.Get(0) == nil {
                return nil, args.Error(1)
            }
            return args.Get(0).(*User), args.Error(1)
        }

        func (m *MockUserRepository) Save(user *User) error {
            args := m.Called(user)
            return args.Error(0)
        }

        func (m *MockUserRepository) Delete(id int) error {
            args := m.Called(id)
            return args.Error(0)
        }

        // 业务服务
        type UserService struct {
            repo UserRepository
        }

        func NewUserService(repo UserRepository) *UserService {
            return &UserService{repo: repo}
        }

        func (s *UserService) GetUser(id int) (*User, error) {
            return s.repo.FindByID(id)
        }

        func (s *UserService) UpdateUserName(id int, name string) error {
            user, err := s.repo.FindByID(id)
            if err != nil {
                return err
            }
            user.Name = name
            return s.repo.Save(user)
        }

        // 测试Suite
        type UserServiceSuite struct {
            suite.Suite
            mockRepo *MockUserRepository
            service  *UserService
        }

        func (s *UserServiceSuite) SetupTest() {
            s.mockRepo = new(MockUserRepository)
            s.service = NewUserService(s.mockRepo)
        }

        func (s *UserServiceSuite) TestGetUser_Success() {
            expectedUser := &User{ID: 1, Name: "Alice"}
            s.mockRepo.On("FindByID", 1).Return(expectedUser, nil)

            user, err := s.service.GetUser(1)

            s.NoError(err)
            s.Equal(expectedUser, user)
            s.mockRepo.AssertExpectations(s.T())
        }

        func (s *UserServiceSuite) TestGetUser_NotFound() {
            s.mockRepo.On("FindByID", 999).
                Return(nil, errors.New("not found"))

            user, err := s.service.GetUser(999)

            s.Error(err)
            s.Nil(user)
            s.mockRepo.AssertExpectations(s.T())
        }

        func (s *UserServiceSuite) TestUpdateUserName() {
            existingUser := &User{ID: 1, Name: "Old"}
            s.mockRepo.On("FindByID", 1).Return(existingUser, nil)
            s.mockRepo.On("Save", mock.MatchedBy(func(u *User) bool {
                return u.ID == 1 && u.Name == "New"
            })).Return(nil)

            err := s.service.UpdateUserName(1, "New")

            s.NoError(err)
            s.mockRepo.AssertExpectations(s.T())
        }

        func TestUserServiceSuite(t *testing.T) {
            suite.Run(t, new(UserServiceSuite))
        }

        // HTTP客户端Mock
        type HTTPClient interface {
            Get(url string) ([]byte, error)
            Post(url string, data []byte) ([]byte, error)
        }

        type MockHTTPClient struct {
            mock.Mock
        }

        func (m *MockHTTPClient) Get(url string) ([]byte, error) {
            args := m.Called(url)
            return args.Get(0).([]byte), args.Error(1)
        }

        func (m *MockHTTPClient) Post(url string, data []byte) ([]byte, error) {
            args := m.Called(url, data)
            return args.Get(0).([]byte), args.Error(1)
        }

        type APIService struct {
            client HTTPClient
        }

        func (s *APIService) FetchData(endpoint string) ([]byte, error) {
            return s.client.Get("https://api.example.com/" + endpoint)
        }

        func TestAPIService(t *testing.T) {
            mockClient := new(MockHTTPClient)
            service := &APIService{client: mockClient}

            expectedData := []byte(`{"status":"ok"}`)
            mockClient.On("Get", "https://api.example.com/data").
                Return(expectedData, nil)

            data, err := service.FetchData("data")

            assert := assert.New(t)
            assert.NoError(err)
            assert.Equal(expectedData, data)
            mockClient.AssertExpectations(t)
        }
        ---

7.5 测试重构技巧

01.消除重复代码
    a.提取辅助函数
        将重复的测试逻辑提取为辅助函数。辅助函数可以在同一测试文件或共享测试包中定义。使用t.Helper()标记辅助函数,错误报告更准确。减少重复提高测试可维护性。
    b.使用表格驱动
        用表格驱动测试替代多个相似的测试函数。定义测试用例数组,用循环执行。添加新用例只需添加数据。表格驱动使测试更简洁清晰。
    c.代码示例
        ---
        // 测试重构示例
        package refactor

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        // ❌ 重构前:重复代码
        func TestValidateEmail_Valid(t *testing.T) {
            email := "user@example.com"
            result := ValidateEmail(email)
            assert.True(t, result)
        }

        func TestValidateEmail_Invalid1(t *testing.T) {
            email := "invalid"
            result := ValidateEmail(email)
            assert.False(t, result)
        }

        func TestValidateEmail_Invalid2(t *testing.T) {
            email := ""
            result := ValidateEmail(email)
            assert.False(t, result)
        }

        // ✅ 重构后:表格驱动
        func TestValidateEmail(t *testing.T) {
            tests := []struct {
                name     string
                email    string
                expected bool
            }{
                {"valid", "user@example.com", true},
                {"invalid no @", "invalid", false},
                {"empty", "", false},
            }

            for _, tt := range tests {
                t.Run(tt.name, func(t *testing.T) {
                    result := ValidateEmail(tt.email)
                    assert.Equal(t, tt.expected, result)
                })
            }
        }

        func ValidateEmail(email string) bool {
            return len(email) > 3
        }

        // ❌ 重构前:重复的断言
        func TestUser_Original(t *testing.T) {
            user := &User{ID: 1, Name: "Alice", Email: "alice@test.com"}

            assert.NotNil(t, user)
            assert.Greater(t, user.ID, 0)
            assert.NotEmpty(t, user.Name)
            assert.Contains(t, user.Email, "@")
        }

        // ✅ 重构后:辅助函数
        func assertValidUser(t *testing.T, user *User) {
            t.Helper()

            assert.NotNil(t, user)
            assert.Greater(t, user.ID, 0)
            assert.NotEmpty(t, user.Name)
            assert.Contains(t, user.Email, "@")
        }

        func TestUser_Refactored(t *testing.T) {
            user := &User{ID: 1, Name: "Alice", Email: "alice@test.com"}
            assertValidUser(t, user)
        }

        func TestMultipleUsers(t *testing.T) {
            users := []*User{
                {ID: 1, Name: "Alice", Email: "a@test.com"},
                {ID: 2, Name: "Bob", Email: "b@test.com"},
            }

            for _, user := range users {
                assertValidUser(t, user)
            }
        }
        ---

02.改善测试结构
    a.使用Suite组织
        将相关测试组织到Suite中,共享setup和teardown。Suite提供更好的测试组织结构。测试方法更清晰,依赖关系更明确。Suite适合复杂的测试场景。
    b.合理分组
        按功能或场景将测试分组到不同的Suite或子测试。每个Suite或测试方法关注一个明确的方面。避免巨大的测试方法,拆分成多个小测试。良好的组织使测试易于理解和维护。
    c.代码示例
        ---
        // 改善测试结构
        package structure

        import (
            "testing"
            "github.com/stretchr/testify/suite"
        )

        // ❌ 重构前:混乱的测试
        func TestEverything(t *testing.T) {
            // 测试用户创建
            // ... 100行代码

            // 测试用户更新
            // ... 100行代码

            // 测试用户删除
            // ... 100行代码
        }

        // ✅ 重构后:使用Suite
        type UserCRUDSuite struct {
            suite.Suite
            service *UserService
        }

        func (s *UserCRUDSuite) SetupTest() {
            s.service = &UserService{}
        }

        func (s *UserCRUDSuite) TestCreate() {
            // 专注于创建逻辑
            user := s.service.CreateUser("Alice")
            s.NotNil(user)
        }

        func (s *UserCRUDSuite) TestUpdate() {
            // 专注于更新逻辑
            s.Run("update name", func() {
                // ...
            })

            s.Run("update email", func() {
                // ...
            })
        }

        func (s *UserCRUDSuite) TestDelete() {
            // 专注于删除逻辑
            err := s.service.DeleteUser(1)
            s.NoError(err)
        }

        func TestUserCRUDSuite(t *testing.T) {
            suite.Run(t, new(UserCRUDSuite))
        }

        type UserService struct{}

        func (s *UserService) CreateUser(name string) *User {
            return &User{Name: name}
        }

        func (s *UserService) DeleteUser(id int) error {
            return nil
        }
        ---

7.6 性能测试

01.基准测试编写
    a.基准测试函数
        基准测试函数以Benchmark开头,接收*testing.B。在b.N循环中执行被测代码。Go会自动调整N使测试运行足够长时间得到稳定结果。使用b.ResetTimer()排除setup时间。
    b.性能分析
        使用go test -bench运行基准测试。添加-benchmem显示内存分配统计。使用-cpuprofile生成CPU profile文件。结合pprof工具深入分析性能瓶颈。
    c.代码示例
        ---
        // 性能测试示例
        package performance

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func StringConcat(strs []string) string {
            result := ""
            for _, s := range strs {
                result += s
            }
            return result
        }

        func StringConcatBuilder(strs []string) string {
            var builder strings.Builder
            for _, s := range strs {
                builder.WriteString(s)
            }
            return builder.String()
        }

        // 基准测试
        func BenchmarkStringConcat(b *testing.B) {
            strs := []string{"hello", "world", "test"}

            b.ResetTimer()
            for i := 0; i < b.N; i++ {
                StringConcat(strs)
            }
        }

        func BenchmarkStringConcatBuilder(b *testing.B) {
            strs := []string{"hello", "world", "test"}

            b.ResetTimer()
            for i := 0; i < b.N; i++ {
                StringConcatBuilder(strs)
            }
        }

        // 不同输入大小的基准测试
        func BenchmarkStringConcat_Small(b *testing.B) {
            strs := []string{"a", "b", "c"}
            for i := 0; i < b.N; i++ {
                StringConcat(strs)
            }
        }

        func BenchmarkStringConcat_Large(b *testing.B) {
            strs := make([]string, 100)
            for i := range strs {
                strs[i] = "test"
            }

            b.ResetTimer()
            for i := 0; i < b.N; i++ {
                StringConcat(strs)
            }
        }

        // 运行命令:
        // go test -bench=. -benchmem
        // go test -bench=StringConcat -benchtime=5s
        // go test -bench=. -cpuprofile=cpu.prof

        // 正确性验证(配合基准测试)
        func TestStringConcatCorrectness(t *testing.T) {
            strs := []string{"hello", "world"}
            result := StringConcat(strs)
            assert.Equal(t, "helloworld", result)
        }
        ---

02.性能对比测试
    a.对比不同实现
        为同一功能的不同实现编写基准测试。对比它们的性能差异。帮助选择最优实现。记录性能基线,防止性能退化。
    b.性能回归检测
        定期运行基准测试,对比历史数据。显著的性能变化需要调查。可以在CI中运行基准测试。使用benchstat等工具对比结果。
    c.代码示例
        ---
        // 性能对比测试
        package comparison

        import (
            "testing"
        )

        // 实现1:使用map
        func ContainsMap(items []int, target int) bool {
            m := make(map[int]bool)
            for _, item := range items {
                m[item] = true
            }
            return m[target]
        }

        // 实现2:线性查找
        func ContainsLinear(items []int, target int) bool {
            for _, item := range items {
                if item == target {
                    return true
                }
            }
            return false
        }

        func BenchmarkContainsMap(b *testing.B) {
            items := []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
            for i := 0; i < b.N; i++ {
                ContainsMap(items, 5)
            }
        }

        func BenchmarkContainsLinear(b *testing.B) {
            items := []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
            for i := 0; i < b.N; i++ {
                ContainsLinear(items, 5)
            }
        }

        // 大数据集对比
        func BenchmarkContainsMap_Large(b *testing.B) {
            items := make([]int, 10000)
            for i := range items {
                items[i] = i
            }

            b.ResetTimer()
            for i := 0; i < b.N; i++ {
                ContainsMap(items, 5000)
            }
        }

        func BenchmarkContainsLinear_Large(b *testing.B) {
            items := make([]int, 10000)
            for i := range items {
                items[i] = i
            }

            b.ResetTimer()
            for i := 0; i < b.N; i++ {
                ContainsLinear(items, 5000)
            }
        }
        ---

7.7 常见问题

01.断言失败定位
    a.使用子测试
        使用t.Run创建子测试,每个子测试有独立的名称。测试失败时会显示完整的测试路径。便于快速定位失败的具体用例。子测试使输出更有组织性。
    b.添加有意义的消息
        在断言中添加描述性消息。消息应该说明测试的意图和失败的原因。帮助快速理解失败的上下文。特别是在表格驱动测试中很有用。
    c.代码示例
        ---
        // 断言失败定位
        package debugging

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        // ❌ 难以定位的测试
        func TestPoorLocation(t *testing.T) {
            assert.Equal(t, 5, Add(2, 3))
            assert.Equal(t, 10, Add(5, 5))
            assert.Equal(t, 0, Add(0, 0))
            // 如果第二个失败,不容易看出是哪个
        }

        // ✅ 易于定位:使用子测试
        func TestGoodLocation(t *testing.T) {
            t.Run("2+3=5", func(t *testing.T) {
                assert.Equal(t, 5, Add(2, 3))
            })

            t.Run("5+5=10", func(t *testing.T) {
                assert.Equal(t, 10, Add(5, 5))
            })

            t.Run("0+0=0", func(t *testing.T) {
                assert.Equal(t, 0, Add(0, 0))
            })
        }

        // ✅ 添加有意义的消息
        func TestWithMessages(t *testing.T) {
            tests := []struct {
                name     string
                a, b     int
                expected int
            }{
                {"positive", 2, 3, 5},
                {"negative", -2, -3, -5},
            }

            for _, tt := range tests {
                t.Run(tt.name, func(t *testing.T) {
                    result := Add(tt.a, tt.b)
                    assert.Equal(t, tt.expected, result,
                        "Add(%d, %d) should equal %d but got %d",
                        tt.a, tt.b, tt.expected, result)
                })
            }
        }

        func Add(a, b int) int {
            return a + b
        }
        ---

02.Mock调试
    a.验证Mock调用
        使用AssertExpectations确保Mock被正确调用。使用AssertCalled验证特定调用。使用AssertNumberOfCalls验证调用次数。Mock未按预期调用时会有清晰的错误消息。
    b.Mock行为问题
        确保On设置的参数匹配实际调用的参数。使用mock.Anything作为占位符。检查Return的返回值类型是否正确。使用Run方法打印调试信息。
    c.代码示例
        ---
        // Mock调试
        package mockdebug

        import (
            "fmt"
            "testing"
            "github.com/stretchr/testify/mock"
            "github.com/stretchr/testify/assert"
        )

        type Service interface {
            Process(data string) (string, error)
        }

        type MockService struct {
            mock.Mock
        }

        func (m *MockService) Process(data string) (string, error) {
            args := m.Called(data)
            return args.String(0), args.Error(1)
        }

        // ❌ 常见错误:参数不匹配
        func TestMockError(t *testing.T) {
            mockSvc := new(MockService)

            // 设置期望:"test"
            mockSvc.On("Process", "test").Return("result", nil)

            // 但实际调用:"TEST"(不匹配)
            // result, _ := mockSvc.Process("TEST") // 会失败

            // ✅ 正确:参数匹配
            result, err := mockSvc.Process("test")
            assert.NoError(t, err)
            assert.Equal(t, "result", result)

            mockSvc.AssertExpectations(t)
        }

        // ✅ 使用Anything匹配任意参数
        func TestMockAnything(t *testing.T) {
            mockSvc := new(MockService)

            mockSvc.On("Process", mock.Anything).Return("result", nil)

            // 任何参数都匹配
            mockSvc.Process("test1")
            mockSvc.Process("test2")

            mockSvc.AssertExpectations(t)
        }

        // ✅ 调试:使用Run打印信息
        func TestMockDebug(t *testing.T) {
            mockSvc := new(MockService)

            mockSvc.On("Process", mock.Anything).
                Run(func(args mock.Arguments) {
                    fmt.Printf("Process called with: %v\n", args.Get(0))
                }).
                Return("result", nil)

            mockSvc.Process("debug test")

            mockSvc.AssertExpectations(t)
        }
        ---

03.测试超时
    a.设置测试超时
        使用testing.Short()跳过慢速测试。在测试中使用context.WithTimeout控制操作超时。CI环境可以设置全局超时。避免测试无限hang住。
    b.处理慢速测试
        识别慢速测试并优化。考虑使用Mock替代真实操作。将慢速集成测试与快速单元测试分离。使用build tags标记慢速测试。
    c.代码示例
        ---
        // 测试超时处理
        package timeout

        import (
            "context"
            "testing"
            "time"
            "github.com/stretchr/testify/assert"
        )

        // 跳过慢速测试
        func TestSlowOperation(t *testing.T) {
            if testing.Short() {
                t.Skip("skipping slow test in short mode")
            }

            // 慢速操作
            time.Sleep(1 * time.Second)
        }

        // 使用超时控制
        func TestWithTimeout(t *testing.T) {
            ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
            defer cancel()

            done := make(chan bool)
            go func() {
                // 模拟操作
                time.Sleep(50 * time.Millisecond)
                done <- true
            }()

            select {
            case <-done:
                assert.True(t, true)
            case <-ctx.Done():
                t.Fatal("operation timed out")
            }
        }

        // 运行命令:
        // go test -short  (跳过慢速测试)
        // go test -timeout 30s (设置全局超时)
        ---

7.8 调试技巧

01.使用t.Log输出
    a.日志记录
        使用t.Log或t.Logf在测试中输出调试信息。日志只在测试失败或使用-v标志时显示。帮助理解测试执行过程。记录中间状态和变量值。
    b.条件日志
        使用t.Failed()检查测试是否已失败。在失败时输出额外的调试信息。避免在成功时输出大量日志。保持测试输出简洁。
    c.代码示例
        ---
        // 测试调试技巧
        package debug

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func ComplexOperation(input int) int {
            // 复杂的多步骤操作
            step1 := input * 2
            step2 := step1 + 10
            step3 := step2 / 2
            return step3
        }

        func TestComplexOperation(t *testing.T) {
            input := 5
            expected := 10

            // 记录输入
            t.Logf("Testing with input: %d", input)

            result := ComplexOperation(input)

            // 记录结果
            t.Logf("Got result: %d", result)

            if !assert.Equal(t, expected, result) {
                // 失败时记录更多信息
                t.Logf("Expected %d but got %d", expected, result)
            }
        }

        // 详细的调试日志
        func TestWithDetailedLogging(t *testing.T) {
            data := []int{1, 2, 3, 4, 5}

            t.Log("Processing data:", data)

            sum := 0
            for i, v := range data {
                sum += v
                t.Logf("Step %d: added %d, sum is now %d", i, v, sum)
            }

            assert.Equal(t, 15, sum)

            if t.Failed() {
                t.Log("Test failed, final sum:", sum)
            }
        }

        // 运行:go test -v  (显示所有日志)
        ---

02.断点调试
    a.IDE调试器
        在IDE中设置断点,以调试模式运行测试。逐步执行代码,检查变量值。VSCode和GoLand都支持测试调试。比日志更直观地理解代码执行。
    b.Delve调试器
        使用dlv test命令行调试器。在代码中插入断点。检查goroutine状态。调试并发问题时特别有用。
    c.代码示例
        ---
        // 调试器使用示例
        package debugger

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func ProcessData(data []int) []int {
            result := make([]int, 0)
            for _, v := range data {
                // 在这里设置断点
                if v > 0 {
                    result = append(result, v*2)
                }
            }
            return result
        }

        func TestProcessData(t *testing.T) {
            input := []int{-1, 2, -3, 4, 5}

            // 在这里设置断点,检查input
            result := ProcessData(input)

            // 在这里设置断点,检查result
            expected := []int{4, 8, 10}
            assert.Equal(t, expected, result)
        }

        // VSCode调试:
        // 1. 点击行号左侧设置断点
        // 2. 点击测试函数上方的"debug test"

        // Delve命令行调试:
        // $ dlv test
        // (dlv) break ProcessData
        // (dlv) continue
        // (dlv) print v
        // (dlv) next
        ---

03.表格驱动测试调试
    a.隔离失败用例
        当表格测试中某个用例失败时,使用-run标志只运行该用例。修改测试临时注释其他用例。使用t.Run的名称过滤。快速迭代修复问题。
    b.添加调试用例
        在表格中添加临时调试用例。使用极简输入定位问题。逐步接近实际失败的情况。找到根因后移除调试用例。
    c.代码示例
        ---
        // 表格驱动测试调试
        package tabledebug

        import (
            "testing"
            "github.com/stretchr/testify/assert"
        )

        func Divide(a, b int) (int, error) {
            if b == 0 {
                return 0, assert.AnError
            }
            return a / b, nil
        }

        func TestDivide(t *testing.T) {
            tests := []struct {
                name        string
                a, b        int
                expected    int
                expectError bool
            }{
                {"normal", 10, 2, 5, false},
                {"zero divisor", 10, 0, 0, true},
                {"negative", -10, 2, -5, false},
                // 临时调试用例
                {"debug case", 7, 2, 3, false}, // 期望3但实际是3.5
            }

            for _, tt := range tests {
                t.Run(tt.name, func(t *testing.T) {
                    // 添加调试日志
                    t.Logf("Testing: %d / %d", tt.a, tt.b)

                    result, err := Divide(tt.a, tt.b)

                    // 详细日志
                    t.Logf("Result: %d, Error: %v", result, err)

                    if tt.expectError {
                        assert.Error(t, err)
                    } else {
                        assert.NoError(t, err)
                        assert.Equal(t, tt.expected, result)
                    }
                })
            }
        }

        // 只运行特定用例:
        // go test -v -run TestDivide/normal
        // go test -v -run TestDivide/debug

        // 调试技巧:
        // 1. 添加t.Log输出中间值
        // 2. 使用断点检查变量
        // 3. 简化测试用例到最小复现
        // 4. 逐步添加复杂度直到找到问题
        ---

04.并发测试调试
    a.Race检测
        始终使用-race运行并发测试。race detector会报告数据竞争的详细信息。修复所有报告的竞态条件。race检测是发现并发bug的第一道防线。
    b.减少并发度
        调试时减少goroutine数量。从2-3个goroutine开始。逐步增加找到问题阈值。使用channel或日志同步输出。
    c.代码示例
        ---
        // 并发测试调试
        package concurrentdebug

        import (
            "sync"
            "testing"
            "github.com/stretchr/testify/assert"
        )

        // ❌ 有bug的并发代码
        type UnsafeCounter struct {
            count int
        }

        func (c *UnsafeCounter) Inc() {
            c.count++ // data race
        }

        func (c *UnsafeCounter) Value() int {
            return c.count // data race
        }

        func TestUnsafeCounter(t *testing.T) {
            counter := &UnsafeCounter{}

            // 调试:先用少量goroutine
            var wg sync.WaitGroup
            for i := 0; i < 10; i++ { // 从10个开始而不是1000个
                wg.Add(1)
                go func(n int) {
                    defer wg.Done()
                    t.Logf("Goroutine %d incrementing", n)
                    counter.Inc()
                }(i)
            }

            wg.Wait()

            result := counter.Value()
            t.Logf("Final value: %d", result)
            assert.Equal(t, 10, result)
        }

        // 运行:go test -race -v
        // 会检测到data race并显示详细位置

        // ✅ 修复后的版本
        type SafeCounter struct {
            mu    sync.Mutex
            count int
        }

        func (c *SafeCounter) Inc() {
            c.mu.Lock()
            c.count++
            c.mu.Unlock()
        }

        func (c *SafeCounter) Value() int {
            c.mu.Lock()
            defer c.mu.Unlock()
            return c.count
        }

        func TestSafeCounter(t *testing.T) {
            counter := &SafeCounter{}
            var wg sync.WaitGroup

            for i := 0; i < 100; i++ {
                wg.Add(1)
                go func() {
                    defer wg.Done()
                    counter.Inc()
                }()
            }

            wg.Wait()
            assert.Equal(t, 100, counter.Value())
        }

        // 调试步骤:
        // 1. go test -race 检测竞态
        // 2. 减少goroutine数量定位问题
        // 3. 添加日志追踪执行顺序
        // 4. 使用sync.Mutex等同步原语修复
        // 5. 再次运行-race验证修复
        ---

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t{constructor(e,r){this.mode=void 0,this.gullet=void 0,this.settings=void 0,this.leftrightDepth=void 0,this.nextToken=void 0,this.mode="math",this.gullet=new hS(e,r,this.mode),this.settings=r,this.leftrightDepth=0}expect(e,r){if(r===void 0&&(r=!0),this.fetch().text!==e)throw new nt("Expected '"+e+"', got '"+this.fetch().text+"'",this.fetch());r&&this.consume()}consume(){this.nextToken=null}fetch(){return this.nextToken==null&&(this.nextToken=this.gullet.expandNextToken()),this.nextToken}switchMode(e){this.mode=e,this.gullet.switchMode(e)}parse(){this.settings.globalGroup||this.gullet.beginGroup(),this.settings.colorIsTextColor&&this.gullet.macros.set("\\color","\\textcolor");try{var e=this.parseExpression(!1);return this.expect("EOF"),this.settings.globalGroup||this.gullet.endGroup(),e}finally{this.gullet.endGroups()}}subparse(e){var r=this.nextToken;this.consume(),this.gullet.pushToken(new vo("}")),this.gullet.pushTokens(e);var n=this.parseExpression(!1);return this.expect("}"),this.nextToken=r,n}parseExpression(e,r){for(var n=[];;){this.mode==="math"&&this.consumeSpaces();var i=this.fetch();if(t.endOfExpression.indexOf(i.text)!==-1||r&&i.text===r||e&&oh[i.text]&&oh[i.text].infix)break;var a=this.parseAtom(r);if(a){if(a.type==="internal")continue}else break;n.push(a)}return this.mode==="text"&&this.formLigatures(n),this.handleInfixNodes(n)}handleInfixNodes(e){for(var r=-1,n,i=0;i=0&&this.settings.reportNonstrict("unicodeTextInMathMode",'Latin-1/Unicode text character "'+r[0]+'" used in math mode',e);var o=wn[this.mode][r].group,l=Gs.range(e),u;if(z1e.hasOwnProperty(o)){var h=o;u={type:"atom",mode:this.mode,family:h,loc:l,text:r}}else u={type:o,mode:this.mode,loc:l,text:r};s=u}else if(r.charCodeAt(0)>=128)this.settings.strict&&(gB(r.charCodeAt(0))?this.mode==="math"&&this.settings.reportNonstrict("unicodeTextInMathMode",'Unicode text character "'+r[0]+'" used in math mode',e):this.settings.reportNonstrict("unknownSymbol",'Unrecognized Unicode character "'+r[0]+'"'+(" ("+r.charCodeAt(0)+")"),e)),s={type:"textord",mode:"text",loc:Gs.range(e),text:r};else return null;if(this.consume(),a)for(var f=0;f{e.tagName==="A"&&e.hasAttribute("target")&&e.setAttribute(t,e.getAttribute("target")??"")}),Q0.default.addHook("afterSanitizeAttributes",e=>{e.tagName==="A"&&e.hasAttribute(t)&&(e.setAttribute("target",e.getAttribute(t)??""),e.removeAttribute(t),e.getAttribute("target")==="_blank"&&e.setAttribute("rel","noopener"))})}var 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e[a]!="object")&&(t[a]=e[a])}),t)},"assignWithDepth"),Hn=RS,zb="#ffffff",$b="#f2f2f2",Wa=v((t,e)=>e?Me(t,{s:-40,l:10}):Me(t,{s:-40,l:-10}),"mkBorder"),eye=class{static{v(this,"Theme")}constructor(){this.background="#f4f4f4",this.primaryColor="#fff4dd",this.noteBkgColor="#fff5ad",this.noteTextColor="#333",this.THEME_COLOR_LIMIT=12,this.fontFamily='"trebuchet ms", verdana, arial, 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cScale7||Me(this.primaryColor,{h:150}),this.cScale8=this.cScale8||Me(this.primaryColor,{h:210,l:150}),this.cScale9=this.cScale9||Me(this.primaryColor,{h:270}),this.cScale10=this.cScale10||Me(this.primaryColor,{h:300}),this.cScale11=this.cScale11||Me(this.primaryColor,{h:330}),this.darkMode)for(let e=0;e{this[r]=t[r]}),this.updateColors(),e.forEach(r=>{this[r]=t[r]})}},tye=v(t=>{let e=new eye;return e.calculate(t),e},"getThemeVariables"),rye=class{static{v(this,"Theme")}constructor(){this.background="#333",this.primaryColor="#1f2020",this.secondaryColor=kt(this.primaryColor,16),this.tertiaryColor=Me(this.primaryColor,{h:-160}),this.primaryBorderColor=ct(this.background),this.secondaryBorderColor=Wa(this.secondaryColor,this.darkMode),this.tertiaryBorderColor=Wa(this.tertiaryColor,this.darkMode),this.primaryTextColor=ct(this.primaryColor),this.secondaryTextColor=ct(this.secondaryColor),this.tertiaryTextColor=ct(this.tertiaryColor),this.lineColor=ct(this.background),this.textColor=ct(this.background),this.mainBkg="#1f2020",this.secondBkg="calculated",this.mainContrastColor="lightgrey",this.darkTextColor=kt(ct("#323D47"),10),this.lineColor="calculated",this.border1="#ccc",this.border2=$s(255,255,255,.25),this.arrowheadColor="calculated",this.fontFamily='"trebuchet ms", verdana, 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rimaryColor,{h:60}),this.cScale5=this.cScale5||Me(this.primaryColor,{h:90}),this.cScale6=this.cScale6||Me(this.primaryColor,{h:120}),this.cScale7=this.cScale7||Me(this.primaryColor,{h:150}),this.cScale8=this.cScale8||Me(this.primaryColor,{h:210}),this.cScale9=this.cScale9||Me(this.primaryColor,{h:270}),this.cScale10=this.cScale10||Me(this.primaryColor,{h:300}),this.cScale11=this.cScale11||Me(this.primaryColor,{h:330});for(let t=0;t{this[r]=t[r]}),this.updateColors(),e.forEach(r=>{this[r]=t[r]})}},nye=v(t=>{let e=new rye;return e.calculate(t),e},"getThemeVariables"),iye=class{static{v(this,"Theme")}constructor(){this.background="#f4f4f4",this.primaryColor="#ECECFF",this.secondaryColor=Me(this.primaryColor,{h:120}),this.secondaryColor="#ffffde",this.tertiaryColor=Me(this.primaryColor,{h:-160}),this.primaryBorderColor=Wa(this.primaryColor,this.darkMode),this.secondaryBorderColor=Wa(this.secondaryColor,this.darkMode),this.tertiaryBorderColor=Wa(this.tertiaryColor,this.darkMode),this.primaryTextColor=ct(this.primaryColor),this.secondaryTextColor=ct(this.secondaryColor),this.tertiaryTextColor=ct(this.tertiaryColor),this.lineColor=ct(this.background),this.textColor=ct(this.background),this.background="white",this.mainBkg="#ECECFF",this.secondBkg="#ffffde",this.lineColor="#333333",this.border1="#9370DB",this.border2="#aaaa33",this.arrowheadColor="#333333",this.fontFamily='"trebuchet ms", verdana, arial, sans-serif',this.fontSize="16px",this.labelBackground="rgba(232,232,232, 0.8)",this.textColor="#333",this.THEME_COLOR_LIMIT=12,this.nodeBkg="calculated",this.nodeBorder="calculated",this.clusterBkg="calculated",this.clusterBorder="calculated",this.defaultLinkColor="calculated",this.titleColor="calculated",this.edgeLabelBackground="calculated",this.actorBorder="calculated",this.actorBkg="calculated",this.actorTextColor="black",this.actorLineColor="calculated",this.signalColor="calculated",this.signalTextColor="calculated",this.labelBoxBkgColor="calculated",this.labelBoxBorderColor="calculated",this.labelTextColor="calculated",this.loopTextColor="calculated",this.noteBorderColor="calculated",this.noteBkgColor="#fff5ad",this.noteTextColor="calculated",this.activationBorderColor="#666",this.activationBkgColor="#f4f4f4",this.sequenceNumberColor="white",this.sectionBkgColor="calculated",this.altSectionBkgColor="calculated",this.sectionBkgColor2="calculated",this.excludeBkgColor="#eeeeee",this.taskBorderColor="calculated",this.taskBkgColor="calculated",this.taskTextLightColor="calculated",this.taskTextColor=this.taskTextLightColor,this.taskTextDarkColor="calculated",this.taskTextOutsideColor=this.taskTextDarkColor,this.taskTextClickableColor="calculated",this.activeTaskBorderColor="calculated",this.activeTaskBkgColor="calculated",this.gridColor="calculated",this.doneTaskBkgColor="calculated",this.doneTaskBorderColor="calculated",this.critBorderColor="calculated",this.critBkgColor="calculated",this.todayLineColor="calculated",this.sectionBkgColor=$s(102,102,255,.49),this.altSectionBkgColor="white",this.sectionBkgColor2="#fff400",this.taskBorderColor="#534fbc",this.taskBkgColor="#8a90dd",this.taskTextLightColor="white",this.taskTextColor="calculated",this.taskTextDarkColor="black",this.taskTextOutsideColor="calculated",this.taskTextClickableColor="#003163",this.activeTaskBorderColor="#534fbc",this.activeTaskBkgColor="#bfc7ff",this.gridColor="lightgrey",this.doneTaskBkgColor="lightgrey",this.doneTaskBorderColor="grey",this.critBorderColor="#ff8888",this.critBkgColor="red",this.todayLineColor="red",this.personBorder=this.primaryBorderColor,this.personBkg=this.mainBkg,this.archEdgeColor="calculated",this.archEdgeArrowColor="calculated",this.archEdgeWidth="3",this.archGroupBorderColor=this.primaryBorderColor,this.archGroupBorderWidth="2px",this.labelColor="black",this.errorBkgColor="#552222",this.errorTextColor="#552222",this.updateColors()}updateColors(){this.cScale0=this.cScale0||this.primaryColor,this.cScale1=this.cScale1||this.secondaryColor,this.cScale2=this.cScale2||this.tertiaryColor,this.cScale3=this.cScale3||Me(this.primaryColor,{h:30}),this.cScale4=this.cScale4||Me(this.primaryColor,{h:60}),this.cScale5=this.cScale5||Me(this.primaryColor,{h:90}),this.cScale6=this.cScale6||Me(this.primaryColor,{h:120}),this.cScale7=this.cScale7||Me(this.primaryColor,{h:150}),this.cScale8=this.cScale8||Me(this.primaryColor,{h:210}),this.cScale9=this.cScale9||Me(this.primaryColor,{h:270}),this.cScale10=this.cScale10||Me(this.primaryColor,{h:300}),this.cScale11=this.cScale11||Me(this.primaryColor,{h:330}),this.cScalePeer1=this.cScalePeer1||Lt(this.secondaryColor,45),this.cScalePeer2=this.cScalePeer2||Lt(this.tertiaryColor,40);for(let t=0;t{this[r]=t[r]}),this.updateColors(),e.forEach(r=>{this[r]=t[r]})}},z1=v(t=>{let e=new iye;return e.calculate(t),e},"getThemeVariables"),aye=class{static{v(this,"Theme")}constructor(){this.background="#f4f4f4",this.primaryColor="#cde498",this.secondaryColor="#cdffb2",this.background="white",this.mainBkg="#cde498",this.secondBkg="#cdffb2",this.lineColor="green",this.border1="#13540c",this.border2="#6eaa49",this.arrowheadColor="green",this.fontFamily='"trebuchet ms", verdana, arial, sans-serif',this.fontSize="16px",this.tertiaryColor=kt("#cde498",10),this.primaryBorderColor=Wa(this.primaryColor,this.darkMode),this.secondaryBorderColor=Wa(this.secondaryColor,this.darkMode),this.tertiaryBorderColor=Wa(this.tertiaryColor,this.darkMode),this.primaryTextColor=ct(this.primaryColor),this.secondaryTextColor=ct(this.secondaryColor),this.tertiaryTextColor=ct(this.primaryColor),this.lineColor=ct(this.background),this.textColor=ct(this.background),this.THEME_COLOR_LIMIT=12,this.nodeBkg="calculated",this.nodeBorder="calculated",this.clusterBkg="calculated",this.clusterBorder="calculated",this.defaultLinkColor="calculated",this.titleColor="#333",this.edgeLabelBackground="#e8e8e8",this.actorBorder="calculated",this.actorBkg="calculated",this.actorTextColor="black",this.actorLineColor="calculated",this.signalColor="#333",this.signalTextColor="#333",this.labelBoxBkgColor="calculated",this.labelBoxBorderColor="#326932",this.labelTextColor="calculated",this.loopTextColor="calculated",this.noteBorderColor="calculated",this.noteBkgColor="#fff5ad",this.noteTextColor="calculated",this.activationBorderColor="#666",this.activationBkgColor="#f4f4f4",this.sequenceNumberColor="white",this.sectionBkgColor="#6eaa49",this.altSectionBkgColor="white",this.sectionBkgColor2="#6eaa49",this.excludeBkgColor="#eeeeee",this.taskBorderColor="calculated",this.taskBkgColor="#487e3a",this.taskTextLightColor="white",this.taskTextColor="calculated",this.taskTextDarkColor="black",this.taskTextOutsideColor="calculated",this.taskTextClickableColor="#003163",this.activeTaskBorderColor="calculated",this.activeTaskBkgColor="calculated",this.gridColor="lightgrey",this.doneTaskBkgColor="lightgrey",this.doneTaskBorderColor="grey",this.critBorderColor="#ff8888",this.critBkgColor="red",this.todayLineColor="red",this.personBorder=this.primaryBorderColor,this.personBkg=this.mainBkg,this.archEdgeColor="calculated",this.archEdgeArrowColor="calculated",this.archEdgeWidth="3",this.archGroupBorderColor=this.primaryBorderColor,this.archGroupBorderWidth="2px",this.labelColor="black",this.errorBkgColor="#552222",this.errorTextColor="#552222"}updateColors(){this.actorBorder=Lt(this.mainBkg,20),this.actorBkg=this.mainBkg,this.labelBoxBkgColor=this.actorBkg,this.labelTextColor=this.actorTextColor,this.loopTextColor=this.actorTextColor,this.noteBorderColor=this.border2,this.noteTextColor=this.actorTextColor,this.actorLineColor=this.actorBorder,this.cScale0=this.cScale0||this.primaryColor,this.cScale1=this.cScale1||this.secondaryColor,this.cScale2=this.cScale2||this.tertiaryColor,this.cScale3=this.cScale3||Me(this.primaryColor,{h:30}),this.cScale4=this.cScale4||Me(this.primaryColor,{h:60}),this.cScale5=this.cScale5||Me(this.primaryColor,{h:90}),this.cScale6=this.cScale6||Me(this.primaryColor,{h:120}),this.cScale7=this.cScale7||Me(this.primaryColor,{h:150}),this.cScale8=this.cScale8||Me(this.primaryColor,{h:210}),this.cScale9=this.cScale9||Me(this.primaryColor,{h:270}),this.cScale10=this.cScale10||Me(this.primaryColor,{h:300}),this.cScale11=this.cScale11||Me(this.primaryColor,{h:330}),this.cScalePeer1=this.cScalePeer1||Lt(this.secondaryColor,45),this.cScalePeer2=this.cScalePeer2||Lt(this.tertiaryColor,40);for(let t=0;t{this[r]=t[r]}),this.updateColors(),e.forEach(r=>{this[r]=t[r]})}},sye=v(t=>{let e=new aye;return e.calculate(t),e},"getThemeVariables"),oye=class{static{v(this,"Theme")}constructor(){this.primaryColor="#eee",this.contrast="#707070",this.secondaryColor=kt(this.contrast,55),this.background="#ffffff",this.tertiaryColor=Me(this.primaryColor,{h:-160}),this.primaryBorderColor=Wa(this.primaryColor,this.darkMode),this.secondaryBorderColor=Wa(this.secondaryColor,this.darkMode),this.tertiaryBorderColor=Wa(this.tertiaryColor,this.darkMode),this.primaryTextColor=ct(this.primaryColor),this.secondaryTextColor=ct(this.secondaryColor),this.tertiaryTextColor=ct(this.tertiaryColor),this.lineColor=ct(this.background),this.textColor=ct(this.background),this.mainBkg="#eee",this.secondBkg="calculated",this.lineColor="#666",this.border1="#999",this.border2="calculated",this.note="#ffa",this.text="#333",this.critical="#d42",this.done="#bbb",this.arrowheadColor="#333333",this.fontFamily='"trebuchet ms", verdana, arial, sans-serif',this.fontSize="16px",this.THEME_COLOR_LIMIT=12,this.nodeBkg="calculated",this.nodeBorder="calculated",this.clusterBkg="calculated",this.clusterBorder="calculated",this.defaultLinkColor="calculated",this.titleColor="calculated",this.edgeLabelBackground="white",this.actorBorder="calculated",this.actorBkg="calculated",this.actorTextColor="calculated",this.actorLineColor=this.actorBorder,this.signalColor="calculated",this.signalTextColor="calculated",this.labelBoxBkgColor="calculated",this.labelBoxBorderColor="calculated",this.labelTextColor="calculated",this.loopTextColor="calculated",this.noteBorderColor="calculated",this.noteBkgColor="calculated",this.noteTextColor="calculated",this.activationBorderColor="#666",this.activationBkgColor="#f4f4f4",this.sequenceNumberColor="white",this.sectionBkgColor="calculated",this.altSectionBkgColor="white",this.sectionBkgColor2="calculated",this.excludeBkgColor="#eeeeee",this.taskBorderColor="calculated",this.taskBkgColor="calculated",this.taskTextLightColor="white",this.taskTextColor="calculated",this.taskTextDarkColor="calculated",this.taskTextOutsideColor="calculated",this.taskTextClickableColor="#003163",this.activeTaskBorderColor="calculated",this.activeTaskBkgColor="calculated",this.gridColor="calculated",this.doneTaskBkgColor="calculated",this.doneTaskBorderColor="calculated",this.critBkgColor="calculated",this.critBorderColor="calculated",this.todayLineColor="calculated",this.personBorder=this.primaryBorderColor,this.personBkg=this.mainBkg,this.archEdgeColor="calculated",this.archEdgeArrowColor="calculated",this.archEdgeWidth="3",this.archGroupBorderColor=this.primaryBorderColor,this.archGroupBorderWidth="2px",this.labelColor="black",this.errorBkgColor="#552222",this.errorTextColor="#552222"}updateColors(){this.secondBkg=kt(this.contrast,55),this.border2=this.contrast,this.actorBorder=kt(this.border1,23),this.actorBkg=this.mainBkg,this.actorTextColor=this.text,this.actorLineColor=this.actorBorder,this.signalColor=this.text,this.signalTextColor=this.text,this.labelBoxBkgColor=this.actorBkg,this.labelBoxBorderColor=this.actorBorder,this.labelTextColor=this.text,this.loopTextColor=this.text,this.noteBorderColor="#999",this.noteBkgColor="#666",this.noteTextColor="#fff",this.cScale0=this.cScale0||"#555",this.cScale1=this.cScale1||"#F4F4F4",this.cScale2=this.cScale2||"#555",this.cScale3=this.cScale3||"#BBB",this.cScale4=this.cScale4||"#777",this.cScale5=this.cScale5||"#999",this.cScale6=this.cScale6||"#DDD",this.cScale7=this.cScale7||"#FFF",this.cScale8=this.cScale8||"#DDD",this.cScale9=this.cScale9||"#BBB",this.cScale10=this.cScale10||"#999",this.cScale11=this.cScale11||"#777";for(let t=0;t{this[r]=t[r]}),this.updateColors(),e.forEach(r=>{this[r]=t[r]})}},lye=v(t=>{let e=new oye;return e.calculate(t),e},"getThemeVariables"),ec={base:{getThemeVariables:tye},dark:{getThemeVariables:nye},default:{getThemeVariables:z1},forest:{getThemeVariables:sye},neutral:{getThemeVariables:lye}},hh={flowchart:{useMaxWidth:!0,titleTopMargin:25,subGraphTitleMargin:{top:0,bottom:0},diagramPadding:8,htmlLabels:!0,nodeSpacing:50,rankSpacing:50,curve:"basis",padding:15,defaultRenderer:"dagre-wrapper",wrappingWidth:200},sequence:{useMaxWidth:!0,hideUnusedParticipants:!1,activationWidth:10,diagramMarginX:50,diagramMarginY:10,actorMargin:50,width:150,height:65,boxMargin:10,boxTextMargin:5,noteMargin:10,messageMargin:35,messageAlign:"center",mirrorActors:!0,forceMenus:!1,bottomMarginAdj:1,rightAngles:!1,showSequenceNumbers:!1,actorFontSize:14,actorFontFamily:'"Open Sans", sans-serif',actorFontWeight:400,noteFontSize:14,noteFontFamily:'"trebuchet ms", verdana, arial, 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sans-serif',external_containerFontWeight:"normal",container_dbFontSize:14,container_dbFontFamily:'"Open Sans", sans-serif',container_dbFontWeight:"normal",external_container_dbFontSize:14,external_container_dbFontFamily:'"Open Sans", sans-serif',external_container_dbFontWeight:"normal",container_queueFontSize:14,container_queueFontFamily:'"Open Sans", sans-serif',container_queueFontWeight:"normal",external_container_queueFontSize:14,external_container_queueFontFamily:'"Open Sans", sans-serif',external_container_queueFontWeight:"normal",componentFontSize:14,componentFontFamily:'"Open Sans", sans-serif',componentFontWeight:"normal",external_componentFontSize:14,external_componentFontFamily:'"Open Sans", sans-serif',external_componentFontWeight:"normal",component_dbFontSize:14,component_dbFontFamily:'"Open Sans", sans-serif',component_dbFontWeight:"normal",external_component_dbFontSize:14,external_component_dbFontFamily:'"Open Sans", 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sans-serif',external_component_queueFontWeight:"normal",wrap:!0,wrapPadding:10,person_bg_color:"#08427B",person_border_color:"#073B6F",external_person_bg_color:"#686868",external_person_border_color:"#8A8A8A",system_bg_color:"#1168BD",system_border_color:"#3C7FC0",system_db_bg_color:"#1168BD",system_db_border_color:"#3C7FC0",system_queue_bg_color:"#1168BD",system_queue_border_color:"#3C7FC0",external_system_bg_color:"#999999",external_system_border_color:"#8A8A8A",external_system_db_bg_color:"#999999",external_system_db_border_color:"#8A8A8A",external_system_queue_bg_color:"#999999",external_system_queue_border_color:"#8A8A8A",container_bg_color:"#438DD5",container_border_color:"#3C7FC0",container_db_bg_color:"#438DD5",container_db_border_color:"#3C7FC0",container_queue_bg_color:"#438DD5",container_queue_border_color:"#3C7FC0",external_container_bg_color:"#B3B3B3",external_container_border_color:"#A6A6A6",external_container_db_bg_color:"#B3B3B3",external_container_db_border_color:"#A6A6A6",external_container_queue_bg_color:"#B3B3B3",external_container_queue_border_color:"#A6A6A6",component_bg_color:"#85BBF0",component_border_color:"#78A8D8",component_db_bg_color:"#85BBF0",component_db_border_color:"#78A8D8",component_queue_bg_color:"#85BBF0",component_queue_border_color:"#78A8D8",external_component_bg_color:"#CCCCCC",external_component_border_color:"#BFBFBF",external_component_db_bg_color:"#CCCCCC",external_component_db_border_color:"#BFBFBF",external_component_queue_bg_color:"#CCCCCC",external_component_queue_border_color:"#BFBFBF"},sankey:{useMaxWidth:!0,width:600,height:400,linkColor:"gradient",nodeAlignment:"justify",showValues:!0,prefix:"",suffix:""},block:{useMaxWidth:!0,padding:8},packet:{useMaxWidth:!0,rowHeight:32,bitWidth:32,bitsPerRow:32,showBits:!0,paddingX:5,paddingY:5},architecture:{useMaxWidth:!0,padding:40,iconSize:80,fontSize:16},theme:"default",look:"classic",handDrawnSeed:0,layout:"dagre",maxTextSize:5e4,maxEdges:500,darkMode:!1,fontFamily:'"trebuchet 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p=Ye.svg(i),g=B6e(0,0,o,h,l,u),m=F6e(0,u,o,h,l,u),y=p.path(g,Bt(e,{})),x=p.path(m,Bt(e,{fill:"none"}));f=i.insert(()=>x,":first-child"),f=i.insert(()=>y,":first-child"),f.attr("class","basic label-container"),d&&f.attr("style",d)}else{let p=P6e(0,0,o,h,l,u);f=i.insert("path",":first-child").attr("d",p).attr("class","basic label-container").attr("style",Aa(d)).attr("style",n)}return f.attr("label-offset-y",u),f.attr("transform",`translate(${-o/2}, ${-(h/2+u)})`),Pt(e,f),s.attr("transform",`translate(${-(a.width/2)-(a.x-(a.left??0))}, ${-(a.height/2)+(e.padding??0)/1.5-(a.y-(a.top??0))})`),e.intersect=function(p){let g=Nt.rect(e,p),m=g.x-(e.x??0);if(l!=0&&(Math.abs(m)<(e.width??0)/2||Math.abs(m)==(e.width??0)/2&&Math.abs(g.y-(e.y??0))>(e.height??0)/2-u)){let y=u*u*(1-m*m/(l*l));y>0&&(y=Math.sqrt(y)),y=u-y,p.y-(e.y??0)>0&&(y=-y),g.y+=y}return g},i}async function iK(t,e){let{labelStyles:r,nodeStyles:n}=Vt(e);e.labelStyle=r;let{shapeSvg:i,bbox:a,label:s}=await tr(t,e,rr(e)),o=a.width+e.padding,l=a.height+e.padding,u=l*.2,h=-o/2,f=-l/2-u/2,{cssStyles:d}=e,p=Ye.svg(i),g=Bt(e,{});e.look!=="handDrawn"&&(g.roughness=0,g.fillStyle="solid");let m=[{x:h,y:f+u},{x:-h,y:f+u},{x:-h,y:-f},{x:h,y:-f},{x:h,y:f},{x:-h,y:f},{x:-h,y:f+u}],y=p.polygon(m.map(b=>[b.x,b.y]),g),x=i.insert(()=>y,":first-child");return x.attr("class","basic label-container"),d&&e.look!=="handDrawn"&&x.selectAll("path").attr("style",d),n&&e.look!=="handDrawn"&&x.selectAll("path").attr("style",n),s.attr("transform",`translate(${h+(e.padding??0)/2-(a.x-(a.left??0))}, ${f+u+(e.padding??0)/2-(a.y-(a.top??0))})`),Pt(e,x),e.intersect=function(b){return Nt.rect(e,b)},i}async function aK(t,e){let{labelStyles:r,nodeStyles:n}=Vt(e);e.labelStyle=r;let{shapeSvg:i,bbox:a,halfPadding:s}=await tr(t,e,rr(e)),l=a.width/2+s+5,u=a.width/2+s,h,{cssStyles:f}=e;if(e.look==="handDrawn"){let d=Ye.svg(i),p=Bt(e,{roughness:.2,strokeWidth:2.5}),g=Bt(e,{roughness:.2,strokeWidth:1.5}),m=d.circle(0,0,l*2,p),y=d.circle(0,0,u*2,g);h=i.insert("g",":first-child"),h.attr("class",Aa(e.cssClasses)).attr("style",Aa(f)),h.node()?.appendChild(m),h.node()?.appendChild(y)}else{h=i.insert("g",":first-child");let d=h.insert("circle",":first-child"),p=h.insert("circle");h.attr("class","basic label-container").attr("style",n),d.attr("class","outer-circle").attr("style",n).attr("r",l).attr("cx",0).attr("cy",0),p.attr("class","inner-circle").attr("style",n).attr("r",u).attr("cx",0).attr("cy",0)}return Pt(e,h),e.intersect=function(d){return re.info("DoubleCircle intersect",e,l,d),Nt.circle(e,l,d)},i}function sK(t,e,{config:{themeVariables:r}}){let{labelStyles:n,nodeStyles:i}=Vt(e);e.label="",e.labelStyle=n;let a=t.insert("g").attr("class",rr(e)).attr("id",e.domId??e.id),s=7,{cssStyles:o}=e,l=Ye.svg(a),{nodeBorder:u}=r,h=Bt(e,{fillStyle:"solid"});e.look!=="handDrawn"&&(h.roughness=0);let 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uK(t,e){let{labelStyles:r,nodeStyles:n}=Vt(e);e.labelStyle=r;let{shapeSvg:i,bbox:a}=await tr(t,e,rr(e)),s=4,o=a.height+e.padding,l=o/s,u=a.width+2*l+e.padding,h=[{x:l,y:0},{x:u-l,y:0},{x:u,y:-o/2},{x:u-l,y:-o},{x:l,y:-o},{x:0,y:-o/2}],f,{cssStyles:d}=e;if(e.look==="handDrawn"){let p=Ye.svg(i),g=Bt(e,{}),m=z6e(0,0,u,o,l),y=p.path(m,g);f=i.insert(()=>y,":first-child").attr("transform",`translate(${-u/2}, ${o/2})`),d&&f.attr("style",d)}else f=Au(i,u,o,h);return n&&f.attr("style",n),e.width=u,e.height=o,Pt(e,f),e.intersect=function(p){return Nt.polygon(e,h,p)},i}async function hK(t,e){let{labelStyles:r,nodeStyles:n}=Vt(e);e.label="",e.labelStyle=r;let{shapeSvg:i}=await tr(t,e,rr(e)),a=Math.max(30,e?.width??0),s=Math.max(30,e?.height??0),{cssStyles:o}=e,l=Ye.svg(i),u=Bt(e,{});e.look!=="handDrawn"&&(u.roughness=0,u.fillStyle="solid");let h=[{x:0,y:0},{x:a,y:0},{x:0,y:s},{x:a,y:s}],f=Er(h),d=l.path(f,u),p=i.insert(()=>d,":first-child");return p.attr("class","basic 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dK(t,e,{config:{themeVariables:r,flowchart:n}}){let{labelStyles:i}=Vt(e);e.labelStyle=i;let a=e.assetHeight??48,s=e.assetWidth??48,o=Math.max(a,s),l=n?.wrappingWidth;e.width=Math.max(o,l??0);let{shapeSvg:u,bbox:h,label:f}=await tr(t,e,"icon-shape default"),d=20,p=e.label?8:0,g=e.pos==="t",{nodeBorder:m,mainBkg:y}=r,{stylesMap:x}=eg(e),b=Ye.svg(u),w=Bt(e,{});e.look!=="handDrawn"&&(w.roughness=0,w.fillStyle="solid");let _=x.get("fill");w.stroke=_??y;let k=u.append("g");e.icon&&k.html(`${await su(e.icon,{height:o,width:o,fallbackPrefix:""})}`);let E=k.node().getBBox(),L=E.width,S=E.height,C=E.x,M=E.y,R=Math.max(L,S)*Math.SQRT2+d*2,T=b.circle(0,0,R,w),I=Math.max(R,h.width),A=R+h.height+p,D=b.rectangle(-I/2,-A/2,I,A,{...w,fill:"transparent",stroke:"none"}),N=u.insert(()=>T,":first-child"),O=u.insert(()=>D);return k.attr("transform",`translate(${-L/2-C},${g?h.height/2+p/2-S/2-M:-h.height/2-p/2-S/2-M})`),k.attr("style",`color: 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C=E.path(Cu(w,_,m,g,5),L),M=Math.max(m,h.width),R=g+h.height+k,T=E.rectangle(-M/2,-R/2,M,R,{...L,fill:"transparent",stroke:"none"}),I=u.insert(()=>C,":first-child").attr("class","icon-shape2"),A=u.insert(()=>T);if(e.icon){let D=u.append("g");D.html(`${await su(e.icon,{height:o,width:o,fallbackPrefix:""})}`);let N=D.node().getBBox(),O=N.width,B=N.height,P=N.x,$=N.y;D.attr("transform",`translate(${-O/2-P},${p?h.height/2+k/2-B/2-$:-h.height/2-k/2-B/2-$})`),D.attr("style",`color: ${b.get("stroke")??y};`)}return d.attr("transform",`translate(${-h.width/2-(h.x-(h.left??0))},${p?-R/2:R/2-h.height})`),I.attr("transform",`translate(0,${p?h.height/2+k/2:-h.height/2-k/2})`),Pt(e,A),e.intersect=function(D){if(re.info("iconSquare intersect",e,D),!e.label)return Nt.rect(e,D);let N=e.x??0,O=e.y??0,B=e.height??0,P=[];return 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C=E.path(Cu(w,_,m,g,.1),L),M=Math.max(m,h.width),R=g+h.height+k,T=E.rectangle(-M/2,-R/2,M,R,{...L,fill:"transparent",stroke:"none"}),I=u.insert(()=>C,":first-child"),A=u.insert(()=>T);if(e.icon){let D=u.append("g");D.html(`${await su(e.icon,{height:o,width:o,fallbackPrefix:""})}`);let N=D.node().getBBox(),O=N.width,B=N.height,P=N.x,$=N.y;D.attr("transform",`translate(${-O/2-P},${p?h.height/2+k/2-B/2-$:-h.height/2-k/2-B/2-$})`),D.attr("style",`color: ${b.get("stroke")??y};`)}return d.attr("transform",`translate(${-h.width/2-(h.x-(h.left??0))},${p?-R/2:R/2-h.height})`),I.attr("transform",`translate(0,${p?h.height/2+k/2:-h.height/2-k/2})`),Pt(e,A),e.intersect=function(D){if(re.info("iconSquare intersect",e,D),!e.label)return Nt.rect(e,D);let N=e.x??0,O=e.y??0,B=e.height??0,P=[];return 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tr(t,e,rr(e)),s=Math.max(a.width+(e.padding??0),e?.width??0),o=Math.max(a.height+(e.padding??0),e?.height??0),l=[{x:-3*o/6,y:0},{x:s,y:0},{x:s+3*o/6,y:-o},{x:0,y:-o}],u,{cssStyles:h}=e;if(e.look==="handDrawn"){let f=Ye.svg(i),d=Bt(e,{}),p=Er(l),g=f.path(p,d);u=i.insert(()=>g,":first-child").attr("transform",`translate(${-s/2}, ${o/2})`),h&&u.attr("style",h)}else u=Au(i,s,o,l);return n&&u.attr("style",n),e.width=s,e.height=o,Pt(e,u),e.intersect=function(f){return Nt.polygon(e,l,f)},i}function wK(t,e){let{labelStyles:r,nodeStyles:n}=Vt(e);e.label="",e.labelStyle=r;let i=t.insert("g").attr("class",rr(e)).attr("id",e.domId??e.id),{cssStyles:a}=e,s=Math.max(35,e?.width??0),o=Math.max(35,e?.height??0),l=7,u=[{x:s,y:0},{x:0,y:o+l/2},{x:s-2*l,y:o+l/2},{x:0,y:2*o},{x:s,y:o-l/2},{x:2*l,y:o-l/2}],h=Ye.svg(i),f=Bt(e,{});e.look!=="handDrawn"&&(f.roughness=0,f.fillStyle="solid");let d=Er(u),p=h.path(d,f),g=i.insert(()=>p,":first-child");return a&&e.look!=="handDrawn"&&g.selectAll("path").attr("style",a),n&&e.look!=="handDrawn"&&g.selectAll("path").attr("style",n),g.attr("transform",`translate(-${s/2},${-o})`),Pt(e,g),e.intersect=function(m){return re.info("lightningBolt intersect",e,m),Nt.polygon(e,u,m)},i}async function kK(t,e){let{labelStyles:r,nodeStyles:n}=Vt(e);e.labelStyle=r;let{shapeSvg:i,bbox:a,label:s}=await tr(t,e,rr(e)),o=Math.max(a.width+(e.padding??0),e.width??0),l=o/2,u=l/(2.5+o/50),h=Math.max(a.height+u+(e.padding??0),e.height??0),f=h*.1,d,{cssStyles:p}=e;if(e.look==="handDrawn"){let g=Ye.svg(i),m=G6e(0,0,o,h,l,u,f),y=U6e(0,u,o,h,l,u),x=Bt(e,{}),b=g.path(m,x),w=g.path(y,x);i.insert(()=>w,":first-child").attr("class","line"),d=i.insert(()=>b,":first-child"),d.attr("class","basic label-container"),p&&d.attr("style",p)}else{let g=$6e(0,0,o,h,l,u,f);d=i.insert("path",":first-child").attr("d",g).attr("class","basic label-container").attr("style",Aa(p)).attr("style",n)}return d.attr("label-offset-y",u),d.attr("transform",`translate(${-o/2}, ${-(h/2+u)})`),Pt(e,d),s.attr("transform",`translate(${-(a.width/2)-(a.x-(a.left??0))}, ${-(a.height/2)+u-(a.y-(a.top??0))})`),e.intersect=function(g){let m=Nt.rect(e,g),y=m.x-(e.x??0);if(l!=0&&(Math.abs(y)<(e.width??0)/2||Math.abs(y)==(e.width??0)/2&&Math.abs(m.y-(e.y??0))>(e.height??0)/2-u)){let x=u*u*(1-y*y/(l*l));x>0&&(x=Math.sqrt(x)),x=u-x,g.y-(e.y??0)>0&&(x=-x),m.y+=x}return m},i}async function TK(t,e){let{labelStyles:r,nodeStyles:n}=Vt(e);e.labelStyle=r;let{shapeSvg:i,bbox:a,label:s}=await tr(t,e,rr(e)),o=Math.max(a.width+(e.padding??0)*2,e?.width??0),l=Math.max(a.height+(e.padding??0)*2,e?.height??0),u=l/4,h=l+u,{cssStyles:f}=e,d=Ye.svg(i),p=Bt(e,{});e.look!=="handDrawn"&&(p.roughness=0,p.fillStyle="solid");let g=[{x:-o/2-o/2*.1,y:-h/2},{x:-o/2-o/2*.1,y:h/2},...Oh(-o/2-o/2*.1,h/2,o/2+o/2*.1,h/2,u,.8),{x:o/2+o/2*.1,y:-h/2},{x:-o/2-o/2*.1,y:-h/2},{x:-o/2,y:-h/2},{x:-o/2,y:h/2*1.1},{x:-o/2,y:-h/2}],m=d.polygon(g.map(x=>[x.x,x.y]),p),y=i.insert(()=>m,":first-child");return y.attr("class","basic label-container"),f&&e.look!=="handDrawn"&&y.selectAll("path").attr("style",f),n&&e.look!=="handDrawn"&&y.selectAll("path").attr("style",n),y.attr("transform",`translate(0,${-u/2})`),s.attr("transform",`translate(${-o/2+(e.padding??0)+o/2*.1/2-(a.x-(a.left??0))},${-l/2+(e.padding??0)-u/2-(a.y-(a.top??0))})`),Pt(e,y),e.intersect=function(x){return Nt.polygon(e,g,x)},i}async function EK(t,e){let{labelStyles:r,nodeStyles:n}=Vt(e);e.labelStyle=r;let{shapeSvg:i,bbox:a,label:s}=await tr(t,e,rr(e)),o=Math.max(a.width+(e.padding??0)*2,e?.width??0),l=Math.max(a.height+(e.padding??0)*2,e?.height??0),u=5,h=-o/2,f=-l/2,{cssStyles:d}=e,p=Ye.svg(i),g=Bt(e,{}),m=[{x:h-u,y:f+u},{x:h-u,y:f+l+u},{x:h+o-u,y:f+l+u},{x:h+o-u,y:f+l},{x:h+o,y:f+l},{x:h+o,y:f+l-u},{x:h+o+u,y:f+l-u},{x:h+o+u,y:f-u},{x:h+u,y:f-u},{x:h+u,y:f},{x:h,y:f},{x:h,y:f+u}],y=[{x:h,y:f+u},{x:h+o-u,y:f+u},{x:h+o-u,y:f+l},{x:h+o,y:f+l},{x:h+o,y:f},{x:h,y:f}];e.look!=="handDrawn"&&(g.roughness=0,g.fillStyle="solid");let x=Er(m),b=p.path(x,g),w=Er(y),_=p.path(w,{...g,fill:"none"}),k=i.insert(()=>_,":first-child");return k.insert(()=>b,":first-child"),k.attr("class","basic label-container"),d&&e.look!=="handDrawn"&&k.selectAll("path").attr("style",d),n&&e.look!=="handDrawn"&&k.selectAll("path").attr("style",n),s.attr("transform",`translate(${-(a.width/2)-u-(a.x-(a.left??0))}, ${-(a.height/2)+u-(a.y-(a.top??0))})`),Pt(e,k),e.intersect=function(E){return Nt.polygon(e,m,E)},i}async function SK(t,e){let{labelStyles:r,nodeStyles:n}=Vt(e);e.labelStyle=r;let{shapeSvg:i,bbox:a,label:s}=await tr(t,e,rr(e)),o=Math.max(a.width+(e.padding??0)*2,e?.width??0),l=Math.max(a.height+(e.padding??0)*2,e?.height??0),u=l/4,h=l+u,f=-o/2,d=-h/2,p=5,{cssStyles:g}=e,m=Oh(f-p,d+h+p,f+o-p,d+h+p,u,.8),y=m?.[m.length-1],x=[{x:f-p,y:d+p},{x:f-p,y:d+h+p},...m,{x:f+o-p,y:y.y-p},{x:f+o,y:y.y-p},{x:f+o,y:y.y-2*p},{x:f+o+p,y:y.y-2*p},{x:f+o+p,y:d-p},{x:f+p,y:d-p},{x:f+p,y:d},{x:f,y:d},{x:f,y:d+p}],b=[{x:f,y:d+p},{x:f+o-p,y:d+p},{x:f+o-p,y:y.y-p},{x:f+o,y:y.y-p},{x:f+o,y:d},{x:f,y:d}],w=Ye.svg(i),_=Bt(e,{});e.look!=="handDrawn"&&(_.roughness=0,_.fillStyle="solid");let k=Er(x),E=w.path(k,_),L=Er(b),S=w.path(L,_),C=i.insert(()=>E,":first-child");return C.insert(()=>S),C.attr("class","basic 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this._preds[e],Te(Nr(this._out[e]),r),delete this._out[e],delete this._sucs[e],--this._nodeCount}return this}setParent(e,r){if(!this._isCompound)throw new Error("Cannot set parent in a non-compound graph");if(ar(r))r=Rd;else{r+="";for(var n=r;!ar(n);n=this.parent(n))if(n===e)throw new Error("Setting "+r+" as parent of "+e+" would create a cycle");this.setNode(r)}return this.setNode(e),this._removeFromParentsChildList(e),this._parent[e]=r,this._children[r][e]=!0,this}_removeFromParentsChildList(e){delete this._children[this._parent[e]][e]}parent(e){if(this._isCompound){var r=this._parent[e];if(r!==Rd)return r}}children(e){if(ar(e)&&(e=Rd),this._isCompound){var r=this._children[e];if(r)return Nr(r)}else{if(e===Rd)return this.nodes();if(this.hasNode(e))return[]}}predecessors(e){var r=this._preds[e];if(r)return Nr(r)}successors(e){var r=this._sucs[e];if(r)return Nr(r)}neighbors(e){var r=this.predecessors(e);if(r)return I_(r,this.successors(e))}isLeaf(e){var r;return this.isDirected()?r=this.successors(e):r=this.neighbors(e),r.length===0}filterNodes(e){var r=new this.constructor({directed:this._isDirected,multigraph:this._isMultigraph,compound:this._isCompound});r.setGraph(this.graph());var n=this;Te(this._nodes,function(s,o){e(o)&&r.setNode(o,s)}),Te(this._edgeObjs,function(s){r.hasNode(s.v)&&r.hasNode(s.w)&&r.setEdge(s,n.edge(s))});var i={};function a(s){var o=n.parent(s);return o===void 0||r.hasNode(o)?(i[s]=o,o):o in i?i[o]:a(o)}return this._isCompound&&Te(r.nodes(),function(s){r.setParent(s,a(s))}),r}setDefaultEdgeLabel(e){return gi(e)||(e=xs(e)),this._defaultEdgeLabelFn=e,this}edgeCount(){return this._edgeCount}edges(){return fr(this._edgeObjs)}setPath(e,r){var n=this,i=arguments;return zr(e,function(a,s){return i.length>1?n.setEdge(a,s,r):n.setEdge(a,s),s}),this}setEdge(){var e,r,n,i,a=!1,s=arguments[0];typeof s=="object"&&s!==null&&"v"in 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Object.prototype.hasOwnProperty.call(this._edgeLabels,i)}removeEdge(e,r,n){var i=arguments.length===1?M_(this._isDirected,arguments[0]):oy(this._isDirected,e,r,n),a=this._edgeObjs[i];return a&&(e=a.v,r=a.w,delete this._edgeLabels[i],delete this._edgeObjs[i],ate(this._preds[r],e),ate(this._sucs[e],r),delete this._in[r][i],delete this._out[e][i],this._edgeCount--),this}inEdges(e,r){var n=this._in[e];if(n){var i=fr(n);return r?Fr(i,function(a){return a.v===r}):i}}outEdges(e,r){var n=this._out[e];if(n){var i=fr(n);return r?Fr(i,function(a){return a.w===r}):i}}nodeEdges(e,r){var n=this.inEdges(e,r);if(n)return n.concat(this.outEdges(e,r))}};Sr.prototype._nodeCount=0;Sr.prototype._edgeCount=0});var As=F(()=>{uw()});function ste(t){t._prev._next=t._next,t._next._prev=t._prev,delete t._next,delete t._prev}function t_e(t,e){if(t!=="_next"&&t!=="_prev")return e}var hw,ote=F(()=>{hw=class{constructor(){var e={};e._next=e._prev=e,this._sentinel=e}dequeue(){var e=this._sentinel,r=e._prev;if(r!==e)return ste(r),r}enqueue(e){var r=this._sentinel;e._prev&&e._next&&ste(e),e._next=r._next,r._next._prev=e,r._next=e,e._prev=r}toString(){for(var e=[],r=this._sentinel,n=r._prev;n!==r;)e.push(JSON.stringify(n,t_e)),n=n._prev;return"["+e.join(", ")+"]"}}});function lte(t,e){if(t.nodeCount()<=1)return[];var r=i_e(t,e||r_e),n=n_e(r.graph,r.buckets,r.zeroIdx);return Br(je(n,function(i){return t.outEdges(i.v,i.w)}))}function n_e(t,e,r){for(var n=[],i=e[e.length-1],a=e[0],s;t.nodeCount();){for(;s=a.dequeue();)D_(t,e,r,s);for(;s=i.dequeue();)D_(t,e,r,s);if(t.nodeCount()){for(var o=e.length-2;o>0;--o)if(s=e[o].dequeue(),s){n=n.concat(D_(t,e,r,s,!0));break}}}return n}function D_(t,e,r,n,i){var a=i?[]:void 0;return Te(t.inEdges(n.v),function(s){var o=t.edge(s),l=t.node(s.v);i&&a.push({v:s.v,w:s.w}),l.out-=o,O_(e,r,l)}),Te(t.outEdges(n.v),function(s){var o=t.edge(s),l=s.w,u=t.node(l);u.in-=o,O_(e,r,u)}),t.removeNode(n.v),a}function i_e(t,e){var r=new Sr,n=0,i=0;Te(t.nodes(),function(o){r.setNode(o,{v:o,in:0,out:0})}),Te(t.edges(),function(o){var l=r.edge(o.v,o.w)||0,u=e(o),h=l+u;r.setEdge(o.v,o.w,h),i=Math.max(i,r.node(o.v).out+=u),n=Math.max(n,r.node(o.w).in+=u)});var a=Mo(i+n+3).map(function(){return new hw}),s=n+1;return Te(r.nodes(),function(o){O_(a,s,r.node(o))}),{graph:r,buckets:a,zeroIdx:s}}function O_(t,e,r){r.out?r.in?t[r.out-r.in+e].enqueue(r):t[t.length-1].enqueue(r):t[0].enqueue(r)}var r_e,cte=F(()=>{Ot();As();ote();r_e=xs(1)});function ute(t){var e=t.graph().acyclicer==="greedy"?lte(t,r(t)):a_e(t);Te(e,function(n){var i=t.edge(n);t.removeEdge(n),i.forwardName=n.name,i.reversed=!0,t.setEdge(n.w,n.v,i,Ld("rev"))});function r(n){return function(i){return n.edge(i).weight}}}function a_e(t){var e=[],r={},n={};function i(a){Object.prototype.hasOwnProperty.call(n,a)||(n[a]=!0,r[a]=!0,Te(t.outEdges(a),function(s){Object.prototype.hasOwnProperty.call(r,s.w)?e.push(s):i(s.w)}),delete r[a])}return Te(t.nodes(),i),e}function hte(t){Te(t.edges(),function(e){var r=t.edge(e);if(r.reversed){t.removeEdge(e);var n=r.forwardName;delete r.reversed,delete r.forwardName,t.setEdge(e.w,e.v,r,n)}})}var P_=F(()=>{Ot();cte()});function wc(t,e,r,n){var i;do i=Ld(n);while(t.hasNode(i));return r.dummy=e,t.setNode(i,r),i}function dte(t){var e=new Sr().setGraph(t.graph());return Te(t.nodes(),function(r){e.setNode(r,t.node(r))}),Te(t.edges(),function(r){var n=e.edge(r.v,r.w)||{weight:0,minlen:1},i=t.edge(r);e.setEdge(r.v,r.w,{weight:n.weight+i.weight,minlen:Math.max(n.minlen,i.minlen)})}),e}function fw(t){var e=new Sr({multigraph:t.isMultigraph()}).setGraph(t.graph());return Te(t.nodes(),function(r){t.children(r).length||e.setNode(r,t.node(r))}),Te(t.edges(),function(r){e.setEdge(r,t.edge(r))}),e}function B_(t,e){var r=t.x,n=t.y,i=e.x-r,a=e.y-n,s=t.width/2,o=t.height/2;if(!i&&!a)throw new Error("Not possible to find intersection inside of the rectangle");var l,u;return Math.abs(a)*s>Math.abs(i)*o?(a<0&&(o=-o),l=o*i/a,u=o):(i<0&&(s=-s),l=s,u=s*a/i),{x:r+l,y:n+u}}function Wh(t){var e=je(Mo(z_(t)+1),function(){return[]});return Te(t.nodes(),function(r){var n=t.node(r),i=n.rank;ar(i)||(e[i][n.order]=r)}),e}function pte(t){var e=xl(je(t.nodes(),function(r){return t.node(r).rank}));Te(t.nodes(),function(r){var n=t.node(r);St(n,"rank")&&(n.rank-=e)})}function gte(t){var e=xl(je(t.nodes(),function(a){return t.node(a).rank})),r=[];Te(t.nodes(),function(a){var s=t.node(a).rank-e;r[s]||(r[s]=[]),r[s].push(a)});var n=0,i=t.graph().nodeRankFactor;Te(r,function(a,s){ar(a)&&s%i!==0?--n:n&&Te(a,function(o){t.node(o).rank+=n})})}function F_(t,e,r,n){var i={width:0,height:0};return arguments.length>=4&&(i.rank=r,i.order=n),wc(t,"border",i,e)}function z_(t){return Ss(je(t.nodes(),function(e){var r=t.node(e).rank;if(!ar(r))return r}))}function mte(t,e){var r={lhs:[],rhs:[]};return Te(t,function(n){e(n)?r.lhs.push(n):r.rhs.push(n)}),r}function vte(t,e){var r=K5();try{return e()}finally{console.log(t+" time: "+(K5()-r)+"ms")}}function yte(t,e){return e()}var kc=F(()=>{Ot();As()});function bte(t){function e(r){var n=t.children(r),i=t.node(r);if(n.length&&Te(n,e),Object.prototype.hasOwnProperty.call(i,"minRank")){i.borderLeft=[],i.borderRight=[];for(var a=i.minRank,s=i.maxRank+1;a{Ot();kc()});function Tte(t){var e=t.graph().rankdir.toLowerCase();(e==="lr"||e==="rl")&&Ste(t)}function Ete(t){var e=t.graph().rankdir.toLowerCase();(e==="bt"||e==="rl")&&s_e(t),(e==="lr"||e==="rl")&&(o_e(t),Ste(t))}function Ste(t){Te(t.nodes(),function(e){kte(t.node(e))}),Te(t.edges(),function(e){kte(t.edge(e))})}function kte(t){var e=t.width;t.width=t.height,t.height=e}function s_e(t){Te(t.nodes(),function(e){$_(t.node(e))}),Te(t.edges(),function(e){var r=t.edge(e);Te(r.points,$_),Object.prototype.hasOwnProperty.call(r,"y")&&$_(r)})}function $_(t){t.y=-t.y}function o_e(t){Te(t.nodes(),function(e){G_(t.node(e))}),Te(t.edges(),function(e){var r=t.edge(e);Te(r.points,G_),Object.prototype.hasOwnProperty.call(r,"x")&&G_(r)})}function G_(t){var e=t.x;t.x=t.y,t.y=e}var Cte=F(()=>{Ot()});function Ate(t){t.graph().dummyChains=[],Te(t.edges(),function(e){c_e(t,e)})}function c_e(t,e){var r=e.v,n=t.node(r).rank,i=e.w,a=t.node(i).rank,s=e.name,o=t.edge(e),l=o.labelRank;if(a!==n+1){t.removeEdge(e);var u=void 0,h,f;for(f=0,++n;n{Ot();kc()});function ly(t){var e={};function r(n){var i=t.node(n);if(Object.prototype.hasOwnProperty.call(e,n))return i.rank;e[n]=!0;var a=xl(je(t.outEdges(n),function(s){return r(s.w)-t.edge(s).minlen}));return(a===Number.POSITIVE_INFINITY||a===void 0||a===null)&&(a=0),i.rank=a}Te(t.sources(),r)}function Nd(t,e){return t.node(e.w).rank-t.node(e.v).rank-t.edge(e).minlen}var dw=F(()=>{Ot()});function pw(t){var e=new Sr({directed:!1}),r=t.nodes()[0],n=t.nodeCount();e.setNode(r,{});for(var i,a;u_e(e,t){Ot();As();dw()});var Rte=F(()=>{});var W_=F(()=>{});var kSt,H_=F(()=>{Ot();W_();kSt=xs(1)});var Nte=F(()=>{H_()});var q_=F(()=>{});var Ite=F(()=>{q_()});var LSt,Mte=F(()=>{Ot();LSt=xs(1)});function Y_(t){var e={},r={},n=[];function i(a){if(Object.prototype.hasOwnProperty.call(r,a))throw new cy;Object.prototype.hasOwnProperty.call(e,a)||(r[a]=!0,e[a]=!0,Te(t.predecessors(a),i),delete r[a],n.push(a))}if(Te(t.sinks(),i),N_(e)!==t.nodeCount())throw new cy;return n}function cy(){}var X_=F(()=>{Ot();Y_.CycleException=cy;cy.prototype=new Error});var Dte=F(()=>{X_()});function gw(t,e,r){Et(e)||(e=[e]);var n=(t.isDirected()?t.successors:t.neighbors).bind(t),i=[],a={};return Te(e,function(s){if(!t.hasNode(s))throw new Error("Graph does not have node: "+s);Ote(t,s,r==="post",a,n,i)}),i}function Ote(t,e,r,n,i,a){Object.prototype.hasOwnProperty.call(n,e)||(n[e]=!0,r||a.push(e),Te(i(e),function(s){Ote(t,s,r,n,i,a)}),r&&a.push(e))}var j_=F(()=>{Ot()});function K_(t,e){return gw(t,e,"post")}var Pte=F(()=>{j_()});function Z_(t,e){return gw(t,e,"pre")}var Bte=F(()=>{j_()});var Fte=F(()=>{W_();uw()});var zte=F(()=>{Rte();H_();Nte();Ite();Mte();Dte();Pte();Bte();Fte();q_();X_()});function qh(t){t=dte(t),ly(t);var e=pw(t);J_(e),Q_(e,t);for(var r,n;r=Vte(e);)n=Wte(e,t,r),Hte(e,t,r,n)}function Q_(t,e){var r=K_(t,t.nodes());r=r.slice(0,r.length-1),Te(r,function(n){v_e(t,e,n)})}function v_e(t,e,r){var n=t.node(r),i=n.parent;t.edge(r,i).cutvalue=Gte(t,e,r)}function Gte(t,e,r){var n=t.node(r),i=n.parent,a=!0,s=e.edge(r,i),o=0;return s||(a=!1,s=e.edge(i,r)),o=s.weight,Te(e.nodeEdges(r),function(l){var u=l.v===r,h=u?l.w:l.v;if(h!==i){var f=u===a,d=e.edge(l).weight;if(o+=f?d:-d,x_e(t,r,h)){var p=t.edge(r,h).cutvalue;o+=f?-p:p}}}),o}function J_(t,e){arguments.length<2&&(e=t.nodes()[0]),Ute(t,{},1,e)}function Ute(t,e,r,n,i){var a=r,s=t.node(n);return e[n]=!0,Te(t.neighbors(n),function(o){Object.prototype.hasOwnProperty.call(e,o)||(r=Ute(t,e,r,o,n))}),s.low=a,s.lim=r++,i?s.parent=i:delete s.parent,r}function Vte(t){return ja(t.edges(),function(e){return 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q=this.match.split(/(?:\r\n?|\n)/g);this.match=this.match.substr(0,this.match.length-1),this.matched=this.matched.substr(0,this.matched.length-1),xe.length-1&&(this.yylineno-=xe.length-1);var de=this.yylloc.range;return this.yylloc={first_line:this.yylloc.first_line,last_line:this.yylineno+1,first_column:this.yylloc.first_column,last_column:xe?(xe.length===q.length?this.yylloc.first_column:0)+q[q.length-xe.length].length-xe[0].length:this.yylloc.first_column-Pe},this.options.ranges&&(this.yylloc.range=[de[0],de[0]+this.yyleng-Pe]),this.yyleng=this.yytext.length,this},"unput"),more:v(function(){return this._more=!0,this},"more"),reject:v(function(){if(this.options.backtrack_lexer)this._backtrack=!0;else return this.parseError("Lexical error on line "+(this.yylineno+1)+`. You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true). `+this.showPosition(),{text:"",token:null,line:this.yylineno});return this},"reject"),less:v(function(Re){this.unput(this.match.slice(Re))},"less"),pastInput:v(function(){var Re=this.matched.substr(0,this.matched.length-this.match.length);return(Re.length>20?"...":"")+Re.substr(-20).replace(/\n/g,"")},"pastInput"),upcomingInput:v(function(){var Re=this.match;return Re.length<20&&(Re+=this._input.substr(0,20-Re.length)),(Re.substr(0,20)+(Re.length>20?"...":"")).replace(/\n/g,"")},"upcomingInput"),showPosition:v(function(){var Re=this.pastInput(),Pe=new Array(Re.length+1).join("-");return Re+this.upcomingInput()+` `+Pe+"^"},"showPosition"),test_match:v(function(Re,Pe){var xe,q,de;if(this.options.backtrack_lexer&&(de={yylineno:this.yylineno,yylloc:{first_line:this.yylloc.first_line,last_line:this.last_line,first_column:this.yylloc.first_column,last_column:this.yylloc.last_column},yytext:this.yytext,match:this.match,matches:this.matches,matched:this.matched,yyleng:this.yyleng,offset:this.offset,_more:this._more,_input:this._input,yy:this.yy,conditionStack:this.conditionStack.slice(0),done:this.done},this.options.ranges&&(de.yylloc.range=this.yylloc.range.slice(0))),q=Re[0].match(/(?:\r\n?|\n).*/g),q&&(this.yylineno+=q.length),this.yylloc={first_line:this.yylloc.last_line,last_line:this.yylineno+1,first_column:this.yylloc.last_column,last_column:q?q[q.length-1].length-q[q.length-1].match(/\r?\n?/)[0].length:this.yylloc.last_column+Re[0].length},this.yytext+=Re[0],this.match+=Re[0],this.matches=Re,this.yyleng=this.yytext.length,this.options.ranges&&(this.yylloc.range=[this.offset,this.offset+=this.yyleng]),this._more=!1,this._backtrack=!1,this._input=this._input.slice(Re[0].length),this.matched+=Re[0],xe=this.performAction.call(this,this.yy,this,Pe,this.conditionStack[this.conditionStack.length-1]),this.done&&this._input&&(this.done=!1),xe)return xe;if(this._backtrack){for(var ie in de)this[ie]=de[ie];return!1}return!1},"test_match"),next:v(function(){if(this.done)return this.EOF;this._input||(this.done=!0);var Re,Pe,xe,q;this._more||(this.yytext="",this.match="");for(var de=this._currentRules(),ie=0;iePe[0].length)){if(Pe=xe,q=ie,this.options.backtrack_lexer){if(Re=this.test_match(xe,de[ie]),Re!==!1)return Re;if(this._backtrack){Pe=!1;continue}else return!1}else if(!this.options.flex)break}return Pe?(Re=this.test_match(Pe,de[q]),Re!==!1?Re:!1):this._input===""?this.EOF:this.parseError("Lexical error on line "+(this.yylineno+1)+`. Unrecognized text. `+this.showPosition(),{text:"",token:null,line:this.yylineno})},"next"),lex:v(function(){var Pe=this.next();return Pe||this.lex()},"lex"),begin:v(function(Pe){this.conditionStack.push(Pe)},"begin"),popState:v(function(){var Pe=this.conditionStack.length-1;return Pe>0?this.conditionStack.pop():this.conditionStack[0]},"popState"),_currentRules:v(function(){return this.conditionStack.length&&this.conditionStack[this.conditionStack.length-1]?this.conditions[this.conditionStack[this.conditionStack.length-1]].rules:this.conditions.INITIAL.rules},"_currentRules"),topState:v(function(Pe){return Pe=this.conditionStack.length-1-Math.abs(Pe||0),Pe>=0?this.conditionStack[Pe]:"INITIAL"},"topState"),pushState:v(function(Pe){this.begin(Pe)},"pushState"),stateStackSize:v(function(){return this.conditionStack.length},"stateStackSize"),options:{},performAction:v(function(Pe,xe,q,de){var ie=de;switch(q){case 0:return 6;case 1:return 7;case 2:return 8;case 3:return 9;case 4:return 22;case 5:return 23;case 6:return this.begin("acc_title"),24;break;case 7:return this.popState(),"acc_title_value";break;case 8:return this.begin("acc_descr"),26;break;case 9:return this.popState(),"acc_descr_value";break;case 10:this.begin("acc_descr_multiline");break;case 11:this.popState();break;case 12:return"acc_descr_multiline_value";case 13:break;case 14:c;break;case 15:return 12;case 16:break;case 17:return 11;case 18:return 15;case 19:return 16;case 20:return 17;case 21:return 18;case 22:return this.begin("person_ext"),45;break;case 23:return this.begin("person"),44;break;case 24:return this.begin("system_ext_queue"),51;break;case 25:return this.begin("system_ext_db"),50;break;case 26:return this.begin("system_ext"),49;break;case 27:return this.begin("system_queue"),48;break;case 28:return this.begin("system_db"),47;break;case 29:return this.begin("system"),46;break;case 30:return this.begin("boundary"),37;break;case 31:return this.begin("enterprise_boundary"),34;break;case 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this.begin("birel"),65;break;case 52:return this.begin("rel_u"),66;break;case 53:return this.begin("rel_u"),66;break;case 54:return this.begin("rel_d"),67;break;case 55:return this.begin("rel_d"),67;break;case 56:return this.begin("rel_l"),68;break;case 57:return this.begin("rel_l"),68;break;case 58:return this.begin("rel_r"),69;break;case 59:return this.begin("rel_r"),69;break;case 60:return this.begin("rel_b"),70;break;case 61:return this.begin("rel_index"),71;break;case 62:return this.begin("update_el_style"),72;break;case 63:return this.begin("update_rel_style"),73;break;case 64:return this.begin("update_layout_config"),74;break;case 65:return"EOF_IN_STRUCT";case 66:return this.begin("attribute"),"ATTRIBUTE_EMPTY";break;case 67:this.begin("attribute");break;case 68:this.popState(),this.popState();break;case 69:return 80;case 70:break;case 71:return 80;case 72:this.begin("string");break;case 73:this.popState();break;case 74:return"STR";case 75:this.begin("string_kv");break;case 76:return this.begin("string_kv_key"),"STR_KEY";break;case 77:this.popState(),this.begin("string_kv_value");break;case 78:return"STR_VALUE";case 79:this.popState(),this.popState();break;case 80:return"STR";case 81:return"LBRACE";case 82:return"RBRACE";case 83:return"SPACE";case 84:return"EOL";case 85:return 14}},"anonymous"),rules:[/^(?:.*direction\s+TB[^\n]*)/,/^(?:.*direction\s+BT[^\n]*)/,/^(?:.*direction\s+RL[^\n]*)/,/^(?:.*direction\s+LR[^\n]*)/,/^(?:title\s[^#\n;]+)/,/^(?:accDescription\s[^#\n;]+)/,/^(?:accTitle\s*:\s*)/,/^(?:(?!\n||)*[^\n]*)/,/^(?:accDescr\s*:\s*)/,/^(?:(?!\n||)*[^\n]*)/,/^(?:accDescr\s*\{\s*)/,/^(?:[\}])/,/^(?:[^\}]*)/,/^(?:%%(?!\{)*[^\n]*(\r?\n?)+)/,/^(?:%%[^\n]*(\r?\n)*)/,/^(?:\s*(\r?\n)+)/,/^(?:\s+)/,/^(?:C4Context\b)/,/^(?:C4Container\b)/,/^(?:C4Component\b)/,/^(?:C4Dynamic\b)/,/^(?:C4Deployment\b)/,/^(?:Person_Ext\b)/,/^(?:Person\b)/,/^(?:SystemQueue_Ext\b)/,/^(?:SystemDb_Ext\b)/,/^(?:System_Ext\b)/,/^(?:SystemQueue\b)/,/^(?:SystemDb\b)/,/^(?:System\b)/,/^(?:Boundary\b)/,/^(?:Enterprise_Boundary\b)/,/^(?:System_Boundary\b)/,/^(?:ContainerQueue_Ext\b)/,/^(?:ContainerDb_Ext\b)/,/^(?:Container_Ext\b)/,/^(?:ContainerQueue\b)/,/^(?:ContainerDb\b)/,/^(?:Container\b)/,/^(?:Container_Boundary\b)/,/^(?:ComponentQueue_Ext\b)/,/^(?:ComponentDb_Ext\b)/,/^(?:Component_Ext\b)/,/^(?:ComponentQueue\b)/,/^(?:ComponentDb\b)/,/^(?:Component\b)/,/^(?:Deployment_Node\b)/,/^(?:Node\b)/,/^(?:Node_L\b)/,/^(?:Node_R\b)/,/^(?:Rel\b)/,/^(?:BiRel\b)/,/^(?:Rel_Up\b)/,/^(?:Rel_U\b)/,/^(?:Rel_Down\b)/,/^(?:Rel_D\b)/,/^(?:Rel_Left\b)/,/^(?:Rel_L\b)/,/^(?:Rel_Right\b)/,/^(?:Rel_R\b)/,/^(?:Rel_Back\b)/,/^(?:RelIndex\b)/,/^(?:UpdateElementStyle\b)/,/^(?:UpdateRelStyle\b)/,/^(?:UpdateLayoutConfig\b)/,/^(?:$)/,/^(?:[(][ 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We}();Ee.lexer=Oe;function De(){this.yy={}}return v(De,"Parser"),De.prototype=Ee,Ee.Parser=De,new De}();Iw.parser=Iw;_9e=Iw,wl=[],Xh=[""],Ka="global",bl="",Sc=[{alias:"global",label:{text:"global"},type:{text:"global"},tags:null,link:null,parentBoundary:""}],yy=[],p9="",g9=!1,Mw=4,Dw=2,L9e=v(function(){return ane},"getC4Type"),R9e=v(function(t){ane=yr(t,pe())},"setC4Type"),N9e=v(function(t,e,r,n,i,a,s,o,l){if(t==null||e===void 0||e===null||r===void 0||r===null||n===void 0||n===null)return;let u={},h=yy.find(f=>f.from===e&&f.to===r);if(h?u=h:yy.push(u),u.type=t,u.from=e,u.to=r,u.label={text:n},i==null)u.techn={text:""};else if(typeof i=="object"){let[f,d]=Object.entries(i)[0];u[f]={text:d}}else u.techn={text:i};if(a==null)u.descr={text:""};else if(typeof a=="object"){let[f,d]=Object.entries(a)[0];u[f]={text:d}}else u.descr={text:a};if(typeof s=="object"){let[f,d]=Object.entries(s)[0];u[f]=d}else u.sprite=s;if(typeof o=="object"){let[f,d]=Object.entries(o)[0];u[f]=d}else 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186:this.$={stmt:"dir",value:"LR"};break}},"anonymous"),table:[{3:1,4:2,9:e,10:r,12:n},{1:[3]},t(i,a,{5:6}),{4:7,9:e,10:r,12:n},{4:8,9:e,10:r,12:n},{13:[1,9],14:[1,10]},{1:[2,1],6:11,7:12,8:s,9:o,10:l,11:u,20:17,22:18,23:19,24:20,25:21,26:22,27:h,33:24,34:f,36:d,38:p,42:28,43:38,44:g,45:39,47:40,60:m,83:y,84:x,85:b,86:w,87:_,88:k,101:E,104:L,105:S,108:C,110:M,112:41,113:R,114:T,115:I,120:A,121:D,122:N,123:O},t(i,[2,9]),t(i,[2,10]),t(i,[2,11]),{8:[1,54],9:[1,55],10:B,15:53,18:56},t(P,[2,3]),t(P,[2,4]),t(P,[2,5]),t(P,[2,6]),t(P,[2,7]),t(P,[2,8]),{8:$,9:z,11:H,21:58,41:59,72:63,75:[1,64],77:[1,65]},{8:$,9:z,11:H,21:66},{8:$,9:z,11:H,21:67},{8:$,9:z,11:H,21:68},{8:$,9:z,11:H,21:69},{8:$,9:z,11:H,21:70},{8:$,9:z,10:[1,71],11:H,21:72},t(P,[2,36]),{35:[1,73]},{37:[1,74]},t(P,[2,39]),t(J,[2,50],{18:75,39:76,10:B,40:X}),{10:[1,78]},{10:[1,79]},{10:[1,80]},{10:[1,81]},{14:oe,44:K,60:ee,79:[1,85],88:Q,94:[1,82],96:[1,83],100:84,104:W,105:Y,108:Z,110:se,113:ce,114:ue,115:te,119:86},t(P,[2,183]),t(P,[2,184]),t(P,[2,185]),t(P,[2,186]),t(Ne,[2,51]),t(Ne,[2,54],{46:[1,98]}),t(ae,[2,72],{112:111,29:[1,99],44:g,48:[1,100],50:[1,101],52:[1,102],54:[1,103],56:[1,104],58:[1,105],60:m,63:[1,106],65:[1,107],67:[1,108],68:[1,109],70:[1,110],88:k,101:E,104:L,105:S,108:C,110:M,113:R,114:T,115:I}),t(we,[2,179]),t(we,[2,140]),t(we,[2,141]),t(we,[2,142]),t(we,[2,143]),t(we,[2,144]),t(we,[2,145]),t(we,[2,146]),t(we,[2,147]),t(we,[2,148]),t(we,[2,149]),t(we,[2,150]),t(i,[2,12]),t(i,[2,18]),t(i,[2,19]),{9:[1,112]},t(Ie,[2,26],{18:113,10:B}),t(P,[2,27]),{42:114,43:38,44:g,45:39,47:40,60:m,88:k,101:E,104:L,105:S,108:C,110:M,112:41,113:R,114:T,115:I},t(P,[2,40]),t(P,[2,41]),t(P,[2,42]),t(Ee,[2,76],{73:115,62:[1,117],74:[1,116]}),{76:118,78:119,79:[1,120],80:[1,121],115:Oe,118:De},t([44,60,62,74,88,101,104,105,108,110,113,114,115],[2,82]),t(P,[2,28]),t(P,[2,29]),t(P,[2,30]),t(P,[2,31]),t(P,[2,32]),{10:We,12:Re,14:Pe,27:xe,28:124,32:q,44:de,60:ie,75:he,79:[1,126],80:[1,127],82:137,83:U,84:ke,85:j,86:ye,87:Ae,88:Ge,89:Fe,90:125,104:ge,108:$e,110:Ce,113:qe,114:lt,115:xt},t(ft,a,{5:150}),t(P,[2,37]),t(P,[2,38]),t(J,[2,48],{44:Ze}),t(J,[2,49],{18:152,10:B,40:st}),t(Ne,[2,44]),{44:g,47:154,60:m,88:k,101:E,104:L,105:S,108:C,110:M,112:41,113:R,114:T,115:I},{101:[1,155],102:156,104:[1,157]},{44:g,47:158,60:m,88:k,101:E,104:L,105:S,108:C,110:M,112:41,113:R,114:T,115:I},{44:g,47:159,60:m,88:k,101:E,104:L,105:S,108:C,110:M,112:41,113:R,114:T,115:I},t(Ue,[2,105],{10:[1,160],95:[1,161]}),{79:[1,162]},t(Ue,[2,113],{119:164,10:[1,163],14:oe,44:K,60:ee,88:Q,104:W,105:Y,108:Z,110:se,113:ce,114:ue,115:te}),t(Ue,[2,115],{10:[1,165]}),t(Ke,[2,181]),t(Ke,[2,168]),t(Ke,[2,169]),t(Ke,[2,170]),t(Ke,[2,171]),t(Ke,[2,172]),t(Ke,[2,173]),t(Ke,[2,174]),t(Ke,[2,175]),t(Ke,[2,176]),t(Ke,[2,177]),t(Ke,[2,178]),{44:g,47:166,60:m,88:k,101:E,104:L,105:S,108:C,110:M,112:41,113:R,114:T,115:I},{30:167,67:it,79:mt,80:Ht,81:168,115:ot,116:et,117:ht},{30:175,67:it,79:mt,80:Ht,81:168,115:ot,116:et,117:ht},{30:177,50:[1,176],67:it,79:mt,80:Ht,81:168,115:ot,116:et,117:ht},{30:178,67:it,79:mt,80:Ht,81:168,115:ot,116:et,117:ht},{30:179,67:it,79:mt,80:Ht,81:168,115:ot,116:et,117:ht},{30:180,67:it,79:mt,80:Ht,81:168,115:ot,116:et,117:ht},{108:[1,181]},{30:182,67:it,79:mt,80:Ht,81:168,115:ot,116:et,117:ht},{30:183,65:[1,184],67:it,79:mt,80:Ht,81:168,115:ot,116:et,117:ht},{30:185,67:it,79:mt,80:Ht,81:168,115:ot,116:et,117:ht},{30:186,67:it,79:mt,80:Ht,81:168,115:ot,116:et,117:ht},{30:187,67:it,79:mt,80:Ht,81:168,115:ot,116:et,117:ht},t(we,[2,180]),t(i,[2,20]),t(Ie,[2,25]),t(J,[2,46],{39:188,18:189,10:B,40:X}),t(Ee,[2,73],{10:[1,190]}),{10:[1,191]},{30:192,67:it,79:mt,80:Ht,81:168,115:ot,116:et,117:ht},{77:[1,193],78:194,115:Oe,118:De},t(bt,[2,78]),t(bt,[2,80]),t(bt,[2,81]),t(bt,[2,166]),t(bt,[2,167]),{8:$,9:z,10:We,11:H,12:Re,14:Pe,21:196,27:xe,29:[1,195],32:q,44:de,60:ie,75:he,82:137,83:U,84:ke,85:j,86:ye,87:Ae,88:Ge,89:Fe,90:197,104:ge,108:$e,110:Ce,113:qe,114:lt,115:xt},t(tt,[2,99]),t(tt,[2,101]),t(tt,[2,102]),t(tt,[2,155]),t(tt,[2,156]),t(tt,[2,157]),t(tt,[2,158]),t(tt,[2,159]),t(tt,[2,160]),t(tt,[2,161]),t(tt,[2,162]),t(tt,[2,163]),t(tt,[2,164]),t(tt,[2,165]),t(tt,[2,88]),t(tt,[2,89]),t(tt,[2,90]),t(tt,[2,91]),t(tt,[2,92]),t(tt,[2,93]),t(tt,[2,94]),t(tt,[2,95]),t(tt,[2,96]),t(tt,[2,97]),t(tt,[2,98]),{6:11,7:12,8:s,9:o,10:l,11:u,20:17,22:18,23:19,24:20,25:21,26:22,27:h,32:[1,198],33:24,34:f,36:d,38:p,42:28,43:38,44:g,45:39,47:40,60:m,83:y,84:x,85:b,86:w,87:_,88:k,101:E,104:L,105:S,108:C,110:M,112:41,113:R,114:T,115:I,120:A,121:D,122:N,123:O},{10:B,18:199},{44:[1,200]},t(Ne,[2,43]),{10:[1,201],44:g,60:m,88:k,101:E,104:L,105:S,108:C,110:M,112:111,113:R,114:T,115:I},{10:[1,202]},{10:[1,203],105:[1,204]},t(_t,[2,126]),{10:[1,205],44:g,60:m,88:k,101:E,104:L,105:S,108:C,110:M,112:111,113:R,114:T,115:I},{10:[1,206],44:g,60:m,88:k,101:E,104:L,105:S,108:C,110:M,112:111,113:R,114:T,115:I},{79:[1,207]},t(Ue,[2,107],{10:[1,208]}),t(Ue,[2,109],{10:[1,209]}),{79:[1,210]},t(Ke,[2,182]),{79:[1,211],97:[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wt=new Error(pt);throw wt.hash=Rt,wt}},"parseError"),parse:v(function(pt){var Rt=this,wt=[0],He=[],yt=[null],fe=[],un=this.table,me="",za=0,p1=0,g1=0,m1=2,v1=1,V0=fe.slice.call(arguments,1),Gn=Object.create(this.lexer),Qi={yy:{}};for(var Ul in this.yy)Object.prototype.hasOwnProperty.call(this.yy,Ul)&&(Qi.yy[Ul]=this.yy[Ul]);Gn.setInput(pt,Qi.yy),Qi.yy.lexer=Gn,Qi.yy.parser=this,typeof Gn.yylloc>"u"&&(Gn.yylloc={});var _f=Gn.yylloc;fe.push(_f);var y1=Gn.options&&Gn.options.ranges;typeof Qi.yy.parseError=="function"?this.parseError=Qi.yy.parseError:this.parseError=Object.getPrototypeOf(this).parseError;function AE($a){wt.length=wt.length-2*$a,yt.length=yt.length-$a,fe.length=fe.length-$a}v(AE,"popStack");function ih(){var $a;return $a=He.pop()||Gn.lex()||v1,typeof $a!="number"&&($a instanceof Array&&(He=$a,$a=He.pop()),$a=Rt.symbols_[$a]||$a),$a}v(ih,"lex");for(var Ji,x1,xn,bi,KO,W0,Vl={},Lf,po,tb,Rf;;){if(xn=wt[wt.length-1],this.defaultActions[xn]?bi=this.defaultActions[xn]:((Ji===null||typeof Ji>"u")&&(Ji=ih()),bi=un[xn]&&un[xn][Ji]),typeof bi>"u"||!bi.length||!bi[0]){var H0="";Rf=[];for(Lf in un[xn])this.terminals_[Lf]&&Lf>m1&&Rf.push("'"+this.terminals_[Lf]+"'");Gn.showPosition?H0="Parse error on line "+(za+1)+`: `+Gn.showPosition()+` Expecting `+Rf.join(", ")+", got '"+(this.terminals_[Ji]||Ji)+"'":H0="Parse error on line "+(za+1)+": Unexpected "+(Ji==v1?"end of input":"'"+(this.terminals_[Ji]||Ji)+"'"),this.parseError(H0,{text:Gn.match,token:this.terminals_[Ji]||Ji,line:Gn.yylineno,loc:_f,expected:Rf})}if(bi[0]instanceof Array&&bi.length>1)throw new Error("Parse Error: multiple actions possible at state: "+xn+", token: "+Ji);switch(bi[0]){case 1:wt.push(Ji),yt.push(Gn.yytext),fe.push(Gn.yylloc),wt.push(bi[1]),Ji=null,x1?(Ji=x1,x1=null):(p1=Gn.yyleng,me=Gn.yytext,za=Gn.yylineno,_f=Gn.yylloc,g1>0&&g1--);break;case 2:if(po=this.productions_[bi[1]][1],Vl.$=yt[yt.length-po],Vl._$={first_line:fe[fe.length-(po||1)].first_line,last_line:fe[fe.length-1].last_line,first_column:fe[fe.length-(po||1)].first_column,last_column:fe[fe.length-1].last_column},y1&&(Vl._$.range=[fe[fe.length-(po||1)].range[0],fe[fe.length-1].range[1]]),W0=this.performAction.apply(Vl,[me,p1,za,Qi.yy,bi[1],yt,fe].concat(V0)),typeof W0<"u")return W0;po&&(wt=wt.slice(0,-1*po*2),yt=yt.slice(0,-1*po),fe=fe.slice(0,-1*po)),wt.push(this.productions_[bi[1]][0]),yt.push(Vl.$),fe.push(Vl._$),tb=un[wt[wt.length-2]][wt[wt.length-1]],wt.push(tb);break;case 3:return!0}}return!0},"parse")},fo=function(){var $i={EOF:1,parseError:v(function(Rt,wt){if(this.yy.parser)this.yy.parser.parseError(Rt,wt);else throw new Error(Rt)},"parseError"),setInput:v(function(pt,Rt){return this.yy=Rt||this.yy||{},this._input=pt,this._more=this._backtrack=this.done=!1,this.yylineno=this.yyleng=0,this.yytext=this.matched=this.match="",this.conditionStack=["INITIAL"],this.yylloc={first_line:1,first_column:0,last_line:1,last_column:0},this.options.ranges&&(this.yylloc.range=[0,0]),this.offset=0,this},"setInput"),input:v(function(){var pt=this._input[0];this.yytext+=pt,this.yyleng++,this.offset++,this.match+=pt,this.matched+=pt;var Rt=pt.match(/(?:\r\n?|\n).*/g);return Rt?(this.yylineno++,this.yylloc.last_line++):this.yylloc.last_column++,this.options.ranges&&this.yylloc.range[1]++,this._input=this._input.slice(1),pt},"input"),unput:v(function(pt){var Rt=pt.length,wt=pt.split(/(?:\r\n?|\n)/g);this._input=pt+this._input,this.yytext=this.yytext.substr(0,this.yytext.length-Rt),this.offset-=Rt;var He=this.match.split(/(?:\r\n?|\n)/g);this.match=this.match.substr(0,this.match.length-1),this.matched=this.matched.substr(0,this.matched.length-1),wt.length-1&&(this.yylineno-=wt.length-1);var yt=this.yylloc.range;return this.yylloc={first_line:this.yylloc.first_line,last_line:this.yylineno+1,first_column:this.yylloc.first_column,last_column:wt?(wt.length===He.length?this.yylloc.first_column:0)+He[He.length-wt.length].length-wt[0].length:this.yylloc.first_column-Rt},this.options.ranges&&(this.yylloc.range=[yt[0],yt[0]+this.yyleng-Rt]),this.yyleng=this.yytext.length,this},"unput"),more:v(function(){return this._more=!0,this},"more"),reject:v(function(){if(this.options.backtrack_lexer)this._backtrack=!0;else return this.parseError("Lexical error on line "+(this.yylineno+1)+`. You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true). `+this.showPosition(),{text:"",token:null,line:this.yylineno});return this},"reject"),less:v(function(pt){this.unput(this.match.slice(pt))},"less"),pastInput:v(function(){var pt=this.matched.substr(0,this.matched.length-this.match.length);return(pt.length>20?"...":"")+pt.substr(-20).replace(/\n/g,"")},"pastInput"),upcomingInput:v(function(){var pt=this.match;return pt.length<20&&(pt+=this._input.substr(0,20-pt.length)),(pt.substr(0,20)+(pt.length>20?"...":"")).replace(/\n/g,"")},"upcomingInput"),showPosition:v(function(){var pt=this.pastInput(),Rt=new Array(pt.length+1).join("-");return pt+this.upcomingInput()+` `+Rt+"^"},"showPosition"),test_match:v(function(pt,Rt){var wt,He,yt;if(this.options.backtrack_lexer&&(yt={yylineno:this.yylineno,yylloc:{first_line:this.yylloc.first_line,last_line:this.last_line,first_column:this.yylloc.first_column,last_column:this.yylloc.last_column},yytext:this.yytext,match:this.match,matches:this.matches,matched:this.matched,yyleng:this.yyleng,offset:this.offset,_more:this._more,_input:this._input,yy:this.yy,conditionStack:this.conditionStack.slice(0),done:this.done},this.options.ranges&&(yt.yylloc.range=this.yylloc.range.slice(0))),He=pt[0].match(/(?:\r\n?|\n).*/g),He&&(this.yylineno+=He.length),this.yylloc={first_line:this.yylloc.last_line,last_line:this.yylineno+1,first_column:this.yylloc.last_column,last_column:He?He[He.length-1].length-He[He.length-1].match(/\r?\n?/)[0].length:this.yylloc.last_column+pt[0].length},this.yytext+=pt[0],this.match+=pt[0],this.matches=pt,this.yyleng=this.yytext.length,this.options.ranges&&(this.yylloc.range=[this.offset,this.offset+=this.yyleng]),this._more=!1,this._backtrack=!1,this._input=this._input.slice(pt[0].length),this.matched+=pt[0],wt=this.performAction.call(this,this.yy,this,Rt,this.conditionStack[this.conditionStack.length-1]),this.done&&this._input&&(this.done=!1),wt)return wt;if(this._backtrack){for(var fe in yt)this[fe]=yt[fe];return!1}return!1},"test_match"),next:v(function(){if(this.done)return this.EOF;this._input||(this.done=!0);var pt,Rt,wt,He;this._more||(this.yytext="",this.match="");for(var yt=this._currentRules(),fe=0;feRt[0].length)){if(Rt=wt,He=fe,this.options.backtrack_lexer){if(pt=this.test_match(wt,yt[fe]),pt!==!1)return pt;if(this._backtrack){Rt=!1;continue}else return!1}else if(!this.options.flex)break}return Rt?(pt=this.test_match(Rt,yt[He]),pt!==!1?pt:!1):this._input===""?this.EOF:this.parseError("Lexical error on line "+(this.yylineno+1)+`. Unrecognized text. `+this.showPosition(),{text:"",token:null,line:this.yylineno})},"next"),lex:v(function(){var Rt=this.next();return Rt||this.lex()},"lex"),begin:v(function(Rt){this.conditionStack.push(Rt)},"begin"),popState:v(function(){var Rt=this.conditionStack.length-1;return Rt>0?this.conditionStack.pop():this.conditionStack[0]},"popState"),_currentRules:v(function(){return this.conditionStack.length&&this.conditionStack[this.conditionStack.length-1]?this.conditions[this.conditionStack[this.conditionStack.length-1]].rules:this.conditions.INITIAL.rules},"_currentRules"),topState:v(function(Rt){return Rt=this.conditionStack.length-1-Math.abs(Rt||0),Rt>=0?this.conditionStack[Rt]:"INITIAL"},"topState"),pushState:v(function(Rt){this.begin(Rt)},"pushState"),stateStackSize:v(function(){return this.conditionStack.length},"stateStackSize"),options:{},performAction:v(function(Rt,wt,He,yt){var fe=yt;switch(He){case 0:return this.begin("acc_title"),34;break;case 1:return this.popState(),"acc_title_value";break;case 2:return this.begin("acc_descr"),36;break;case 3:return this.popState(),"acc_descr_value";break;case 4:this.begin("acc_descr_multiline");break;case 5:this.popState();break;case 6:return"acc_descr_multiline_value";case 7:return this.pushState("shapeData"),wt.yytext="",40;break;case 8:return this.pushState("shapeDataStr"),40;break;case 9:return this.popState(),40;break;case 10:let un=/\n\s*/g;return wt.yytext=wt.yytext.replace(un,"
    "),40;break;case 11:return 40;case 12:this.popState();break;case 13:this.begin("callbackname");break;case 14:this.popState();break;case 15:this.popState(),this.begin("callbackargs");break;case 16:return 94;case 17:this.popState();break;case 18:return 95;case 19:return"MD_STR";case 20:this.popState();break;case 21:this.begin("md_string");break;case 22:return"STR";case 23:this.popState();break;case 24:this.pushState("string");break;case 25:return 83;case 26:return 101;case 27:return 84;case 28:return 103;case 29:return 85;case 30:return 86;case 31:return 96;case 32:this.begin("click");break;case 33:this.popState();break;case 34:return 87;case 35:return Rt.lex.firstGraph()&&this.begin("dir"),12;break;case 36:return Rt.lex.firstGraph()&&this.begin("dir"),12;break;case 37:return Rt.lex.firstGraph()&&this.begin("dir"),12;break;case 38:return 27;case 39:return 32;case 40:return 97;case 41:return 97;case 42:return 97;case 43:return 97;case 44:return this.popState(),13;break;case 45:return this.popState(),14;break;case 46:return this.popState(),14;break;case 47:return this.popState(),14;break;case 48:return this.popState(),14;break;case 49:return this.popState(),14;break;case 50:return this.popState(),14;break;case 51:return this.popState(),14;break;case 52:return this.popState(),14;break;case 53:return this.popState(),14;break;case 54:return this.popState(),14;break;case 55:return 120;case 56:return 121;case 57:return 122;case 58:return 123;case 59:return 104;case 60:return 110;case 61:return 46;case 62:return 60;case 63:return 44;case 64:return 8;case 65:return 105;case 66:return 114;case 67:return this.popState(),77;break;case 68:return this.pushState("edgeText"),75;break;case 69:return 118;case 70:return this.popState(),77;break;case 71:return this.pushState("thickEdgeText"),75;break;case 72:return 118;case 73:return this.popState(),77;break;case 74:return this.pushState("dottedEdgeText"),75;break;case 75:return 118;case 76:return 77;case 77:return this.popState(),53;break;case 78:return"TEXT";case 79:return this.pushState("ellipseText"),52;break;case 80:return this.popState(),55;break;case 81:return this.pushState("text"),54;break;case 82:return this.popState(),57;break;case 83:return this.pushState("text"),56;break;case 84:return 58;case 85:return this.pushState("text"),67;break;case 86:return this.popState(),64;break;case 87:return this.pushState("text"),63;break;case 88:return this.popState(),49;break;case 89:return this.pushState("text"),48;break;case 90:return this.popState(),69;break;case 91:return this.popState(),71;break;case 92:return 116;case 93:return this.pushState("trapText"),68;break;case 94:return this.pushState("trapText"),70;break;case 95:return 117;case 96:return 67;case 97:return 89;case 98:return"SEP";case 99:return 88;case 100:return 114;case 101:return 110;case 102:return 44;case 103:return 108;case 104:return 113;case 105:return 115;case 106:return this.popState(),62;break;case 107:return this.pushState("text"),62;break;case 108:return this.popState(),51;break;case 109:return this.pushState("text"),50;break;case 110:return this.popState(),31;break;case 111:return this.pushState("text"),29;break;case 112:return this.popState(),66;break;case 113:return this.pushState("text"),65;break;case 114:return"TEXT";case 115:return"QUOTE";case 116:return 9;case 117:return 10;case 118:return 11}},"anonymous"),rules:[/^(?:accTitle\s*:\s*)/,/^(?:(?!\n||)*[^\n]*)/,/^(?:accDescr\s*:\s*)/,/^(?:(?!\n||)*[^\n]*)/,/^(?:accDescr\s*\{\s*)/,/^(?:[\}])/,/^(?:[^\}]*)/,/^(?:@\{)/,/^(?:["])/,/^(?:["])/,/^(?:[^\"]+)/,/^(?:[^}^"]+)/,/^(?:\})/,/^(?:call[\s]+)/,/^(?:\([\s]*\))/,/^(?:\()/,/^(?:[^(]*)/,/^(?:\))/,/^(?:[^)]*)/,/^(?:[^`"]+)/,/^(?:[`]["])/,/^(?:["][`])/,/^(?:[^"]+)/,/^(?:["])/,/^(?:["])/,/^(?:style\b)/,/^(?:default\b)/,/^(?:linkStyle\b)/,/^(?:interpolate\b)/,/^(?:classDef\b)/,/^(?:class\b)/,/^(?:href[\s])/,/^(?:click[\s]+)/,/^(?:[\s\n])/,/^(?:[^\s\n]*)/,/^(?:flowchart-elk\b)/,/^(?:graph\b)/,/^(?:flowchart\b)/,/^(?:subgraph\b)/,/^(?:end\b\s*)/,/^(?:_self\b)/,/^(?:_blank\b)/,/^(?:_parent\b)/,/^(?:_top\b)/,/^(?:(\r?\n)*\s*\n)/,/^(?:\s*LR\b)/,/^(?:\s*RL\b)/,/^(?:\s*TB\b)/,/^(?:\s*BT\b)/,/^(?:\s*TD\b)/,/^(?:\s*BR\b)/,/^(?:\s*<)/,/^(?:\s*>)/,/^(?:\s*\^)/,/^(?:\s*v\b)/,/^(?:.*direction\s+TB[^\n]*)/,/^(?:.*direction\s+BT[^\n]*)/,/^(?:.*direction\s+RL[^\n]*)/,/^(?:.*direction\s+LR[^\n]*)/,/^(?:[0-9]+)/,/^(?:#)/,/^(?::::)/,/^(?::)/,/^(?:&)/,/^(?:;)/,/^(?:,)/,/^(?:\*)/,/^(?:\s*[xo<]?--+[-xo>]\s*)/,/^(?:\s*[xo<]?--\s*)/,/^(?:[^-]|-(?!-)+)/,/^(?:\s*[xo<]?==+[=xo>]\s*)/,/^(?:\s*[xo<]?==\s*)/,/^(?:[^=]|=(?!))/,/^(?:\s*[xo<]?-?\.+-[xo>]?\s*)/,/^(?:\s*[xo<]?-\.\s*)/,/^(?:[^\.]|\.(?!))/,/^(?:\s*~~[\~]+\s*)/,/^(?:[-/\)][\)])/,/^(?:[^\(\)\[\]\{\}]|!\)+)/,/^(?:\(-)/,/^(?:\]\))/,/^(?:\(\[)/,/^(?:\]\])/,/^(?:\[\[)/,/^(?:\[\|)/,/^(?:>)/,/^(?:\)\])/,/^(?:\[\()/,/^(?:\)\)\))/,/^(?:\(\(\()/,/^(?:[\\(?=\])][\]])/,/^(?:\/(?=\])\])/,/^(?:\/(?!\])|\\(?!\])|[^\\\[\]\(\)\{\}\/]+)/,/^(?:\[\/)/,/^(?:\[\\)/,/^(?:<)/,/^(?:>)/,/^(?:\^)/,/^(?:\\\|)/,/^(?:v\b)/,/^(?:\*)/,/^(?:#)/,/^(?:&)/,/^(?:([A-Za-z0-9!"\#$%&'*+\.`?\\_\/]|-(?=[^\>\-\.])|(?!))+)/,/^(?:-)/,/^(?:[\u00AA\u00B5\u00BA\u00C0-\u00D6\u00D8-\u00F6]|[\u00F8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377]|[\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5]|[\u03F7-\u0481\u048A-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA]|[\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE]|[\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA]|[\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0]|[\u08A2-\u08AC\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0977]|[\u0979-\u097F\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2]|[\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A]|[\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39]|[\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8]|[\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C]|[\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C]|[\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99]|[\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0]|[\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C3D]|[\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3]|[\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10]|[\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1]|[\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81]|[\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3]|[\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6]|[\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A]|[\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081]|[\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D]|[\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0]|[\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310]|[\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F4\u1401-\u166C]|[\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u1700-\u170C\u170E-\u1711]|[\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7]|[\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191C]|[\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16]|[\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF]|[\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC]|[\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D]|[\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D]|[\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3]|[\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F]|[\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128]|[\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2183\u2184]|[\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3]|[\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6]|[\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE]|[\u2DD0-\u2DD6\u2DD8-\u2DDE\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$i}();os.lexer=fo;function Zi(){this.yy={}}return v(Zi,"Parser"),Zi.prototype=os,os.Parser=Zi,new Zi}();b9.parser=b9;aRe=b9,sRe=v((t,e)=>{let r=S1,n=r(t,"r"),i=r(t,"g"),a=r(t,"b");return $s(n,i,a,e)},"fade"),oRe=v(t=>`.label { font-family: ${t.fontFamily}; color: ${t.nodeTextColor||t.textColor}; } .cluster-label text { fill: ${t.titleColor}; } .cluster-label span { color: ${t.titleColor}; } .cluster-label span p { background-color: transparent; } .label text,span { fill: ${t.nodeTextColor||t.textColor}; color: ${t.nodeTextColor||t.textColor}; } .node rect, .node circle, .node ellipse, .node polygon, .node path { fill: ${t.mainBkg}; stroke: ${t.nodeBorder}; stroke-width: 1px; } .rough-node .label text , .node .label text, .image-shape .label, .icon-shape .label { text-anchor: middle; } // .flowchart-label .text-outer-tspan { // text-anchor: middle; // } // .flowchart-label .text-inner-tspan { // text-anchor: start; // } .node .katex path { fill: #000; stroke: #000; stroke-width: 1px; } .rough-node .label,.node .label, .image-shape .label, .icon-shape .label { text-align: center; } .node.clickable { cursor: pointer; } .root .anchor path { fill: ${t.lineColor} !important; stroke-width: 0; stroke: ${t.lineColor}; } .arrowheadPath { fill: ${t.arrowheadColor}; } .edgePath .path { stroke: ${t.lineColor}; stroke-width: 2.0px; } .flowchart-link { stroke: ${t.lineColor}; fill: none; } .edgeLabel { background-color: ${t.edgeLabelBackground}; p { background-color: ${t.edgeLabelBackground}; } rect { opacity: 0.5; background-color: ${t.edgeLabelBackground}; fill: ${t.edgeLabelBackground}; } text-align: center; } /* For html labels only */ .labelBkg { background-color: ${sRe(t.edgeLabelBackground,.5)}; // background-color: } .cluster rect { fill: ${t.clusterBkg}; stroke: ${t.clusterBorder}; stroke-width: 1px; } .cluster text { fill: ${t.titleColor}; } .cluster span { color: ${t.titleColor}; } /* .cluster div { color: ${t.titleColor}; } */ div.mermaidTooltip { position: absolute; text-align: center; max-width: 200px; padding: 2px; font-family: ${t.fontFamily}; font-size: 12px; background: ${t.tertiaryColor}; border: 1px solid ${t.border2}; border-radius: 2px; pointer-events: none; z-index: 100; } .flowchartTitleText { text-anchor: middle; font-size: 18px; fill: ${t.textColor}; } rect.text { fill: none; stroke-width: 0; } .icon-shape, .image-shape { background-color: ${t.edgeLabelBackground}; p { background-color: ${t.edgeLabelBackground}; padding: 2px; } rect { opacity: 0.5; background-color: ${t.edgeLabelBackground}; fill: ${t.edgeLabelBackground}; } text-align: center; } `,"getStyles"),lRe=oRe,cRe={parser:aRe,db:y9,renderer:iRe,styles:lRe,init:v(t=>{t.flowchart||(t.flowchart={}),t.layout&&VS({layout:t.layout}),t.flowchart.arrowMarkerAbsolute=t.arrowMarkerAbsolute,VS({flowchart:{arrowMarkerAbsolute:t.arrowMarkerAbsolute}}),y9.clear(),y9.setGen("gen-2")},"init")}});var 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Because it appears AFTER the Token Type ->${n.name}<-in the lexer's definition. See https://chevrotain.io/docs/guide/resolving_lexer_errors.html#UNREACHABLE`;e.push({message:l,type:Fn.UNREACHABLE_PATTERN,tokenTypes:[n,o]})}})}),e}function HNe(t,e){if(Io(e)){let r=e.exec(t);return r!==null&&r.index===0}else{if(gi(e))return e(t,0,[],{});if(St(e,"exec"))return e.exec(t,0,[],{});if(typeof e=="string")return e===t;throw Error("non exhaustive match")}}function qNe(t){return ja([".","\\","[","]","|","^","$","(",")","?","*","+","{"],r=>t.source.indexOf(r)!==-1)===void 0}function Lie(t){let e=t.ignoreCase?"i":"";return new RegExp(`^(?:${t.source})`,e)}function Rie(t){let e=t.ignoreCase?"iy":"y";return new RegExp(`${t.source}`,e)}function Mie(t,e,r){let n=[];return St(t,Wg)||n.push({message:"A MultiMode Lexer cannot be initialized without a <"+Wg+`> property in its definition `,type:Fn.MULTI_MODE_LEXER_WITHOUT_DEFAULT_MODE}),St(t,wk)||n.push({message:"A MultiMode Lexer cannot be initialized without a <"+wk+`> property in its definition `,type:Fn.MULTI_MODE_LEXER_WITHOUT_MODES_PROPERTY}),St(t,wk)&&St(t,Wg)&&!St(t.modes,t.defaultMode)&&n.push({message:`A MultiMode Lexer cannot be initialized with a ${Wg}: <${t.defaultMode}>which does not exist `,type:Fn.MULTI_MODE_LEXER_DEFAULT_MODE_VALUE_DOES_NOT_EXIST}),St(t,wk)&&Te(t.modes,(i,a)=>{Te(i,(s,o)=>{if(ar(s))n.push({message:`A Lexer cannot be initialized using an undefined Token Type. Mode:<${a}> at index: <${o}> `,type:Fn.LEXER_DEFINITION_CANNOT_CONTAIN_UNDEFINED});else if(St(s,"LONGER_ALT")){let l=Et(s.LONGER_ALT)?s.LONGER_ALT:[s.LONGER_ALT];Te(l,u=>{!ar(u)&&!Bn(i,u)&&n.push({message:`A MultiMode Lexer cannot be initialized with a longer_alt <${u.name}> on token <${s.name}> outside of mode <${a}> `,type:Fn.MULTI_MODE_LEXER_LONGER_ALT_NOT_IN_CURRENT_MODE})})}})}),n}function Die(t,e,r){let n=[],i=!1,a=xc(Br(fr(t.modes))),s=Vh(a,l=>l[Kd]===ei.NA),o=zie(r);return e&&Te(s,l=>{let u=Fie(l,o);if(u!==!1){let f={message:XNe(l,u),type:u.issue,tokenType:l};n.push(f)}else St(l,"LINE_BREAKS")?l.LINE_BREAKS===!0&&(i=!0):bk(o,l.PATTERN)&&(i=!0)}),e&&!i&&n.push({message:`Warning: No LINE_BREAKS Found. This Lexer has been defined to track line and column information, But none of the Token Types can be identified as matching a line terminator. See https://chevrotain.io/docs/guide/resolving_lexer_errors.html#LINE_BREAKS for details.`,type:Fn.NO_LINE_BREAKS_FLAGS}),n}function Oie(t){let e={},r=Nr(t);return Te(r,n=>{let i=t[n];if(Et(i))e[n]=[];else throw Error("non exhaustive match")}),e}function Pie(t){let e=t.PATTERN;if(Io(e))return!1;if(gi(e))return!0;if(St(e,"exec"))return!0;if(ci(e))return!1;throw Error("non exhaustive match")}function YNe(t){return ci(t)&&t.length===1?t.charCodeAt(0):!1}function Fie(t,e){if(St(t,"LINE_BREAKS"))return!1;if(Io(t.PATTERN)){try{bk(e,t.PATTERN)}catch(r){return{issue:Fn.IDENTIFY_TERMINATOR,errMsg:r.message}}return!1}else{if(ci(t.PATTERN))return!1;if(Pie(t))return{issue:Fn.CUSTOM_LINE_BREAK};throw Error("non exhaustive match")}}function XNe(t,e){if(e.issue===Fn.IDENTIFY_TERMINATOR)return`Warning: unable to identify line terminator usage in pattern. The problem is in the <${t.name}> Token Type Root cause: ${e.errMsg}. For details See: https://chevrotain.io/docs/guide/resolving_lexer_errors.html#IDENTIFY_TERMINATOR`;if(e.issue===Fn.CUSTOM_LINE_BREAK)return`Warning: A Custom Token Pattern should specify the option. The problem is in the <${t.name}> Token Type For details See: https://chevrotain.io/docs/guide/resolving_lexer_errors.html#CUSTOM_LINE_BREAK`;throw Error("non exhaustive match")}function zie(t){return je(t,r=>ci(r)?r.charCodeAt(0):r)}function vR(t,e,r){t[e]===void 0?t[e]=[r]:t[e].push(r)}function Rc(t){return t255?255+~~(t/255):t}}var Kd,Wg,wk,yR,ONe,FNe,Bie,Vg,kk,mR=F(()=>{Dy();Uy();Ot();$g();_ie();yk();Kd="PATTERN",Wg="defaultMode",wk="modes",yR=typeof new RegExp("(?:)").sticky=="boolean";ONe=/[^\\][$]/;FNe=/[^\\[][\^]|^\^/;Bie={test:function(t){let e=t.length;for(let r=this.lastIndex;r{r.isParent=r.categoryMatches.length>0})}function KNe(t){let e=jr(t),r=t,n=!0;for(;n;){r=xc(Br(je(r,a=>a.CATEGORIES)));let i=Uh(r,e);e=e.concat(i),ir(i)?n=!1:r=i}return e}function ZNe(t){Te(t,e=>{xR(e)||(Uie[$ie]=e,e.tokenTypeIdx=$ie++),Gie(e)&&!Et(e.CATEGORIES)&&(e.CATEGORIES=[e.CATEGORIES]),Gie(e)||(e.CATEGORIES=[]),eIe(e)||(e.categoryMatches=[]),tIe(e)||(e.categoryMatchesMap={})})}function QNe(t){Te(t,e=>{e.categoryMatches=[],Te(e.categoryMatchesMap,(r,n)=>{e.categoryMatches.push(Uie[n].tokenTypeIdx)})})}function JNe(t){Te(t,e=>{Vie([],e)})}function Vie(t,e){Te(t,r=>{e.categoryMatchesMap[r.tokenTypeIdx]=!0}),Te(e.CATEGORIES,r=>{let n=t.concat(e);Bn(n,r)||Vie(n,r)})}function xR(t){return St(t,"tokenTypeIdx")}function Gie(t){return St(t,"CATEGORIES")}function eIe(t){return St(t,"categoryMatches")}function tIe(t){return St(t,"categoryMatchesMap")}function Wie(t){return St(t,"tokenTypeIdx")}var $ie,Uie,Zd=F(()=>{Ot();$ie=1,Uie={}});var bR,wR=F(()=>{bR={buildUnableToPopLexerModeMessage(t){return`Unable to pop Lexer Mode after encountering Token ->${t.image}<- The Mode Stack is empty`},buildUnexpectedCharactersMessage(t,e,r,n,i){return`unexpected character: ->${t.charAt(e)}<- at offset: ${e}, skipped ${r} characters.`}}});var Fn,Vy,ei,Uy=F(()=>{mR();Ot();$g();Zd();wR();yk();(function(t){t[t.MISSING_PATTERN=0]="MISSING_PATTERN",t[t.INVALID_PATTERN=1]="INVALID_PATTERN",t[t.EOI_ANCHOR_FOUND=2]="EOI_ANCHOR_FOUND",t[t.UNSUPPORTED_FLAGS_FOUND=3]="UNSUPPORTED_FLAGS_FOUND",t[t.DUPLICATE_PATTERNS_FOUND=4]="DUPLICATE_PATTERNS_FOUND",t[t.INVALID_GROUP_TYPE_FOUND=5]="INVALID_GROUP_TYPE_FOUND",t[t.PUSH_MODE_DOES_NOT_EXIST=6]="PUSH_MODE_DOES_NOT_EXIST",t[t.MULTI_MODE_LEXER_WITHOUT_DEFAULT_MODE=7]="MULTI_MODE_LEXER_WITHOUT_DEFAULT_MODE",t[t.MULTI_MODE_LEXER_WITHOUT_MODES_PROPERTY=8]="MULTI_MODE_LEXER_WITHOUT_MODES_PROPERTY",t[t.MULTI_MODE_LEXER_DEFAULT_MODE_VALUE_DOES_NOT_EXIST=9]="MULTI_MODE_LEXER_DEFAULT_MODE_VALUE_DOES_NOT_EXIST",t[t.LEXER_DEFINITION_CANNOT_CONTAIN_UNDEFINED=10]="LEXER_DEFINITION_CANNOT_CONTAIN_UNDEFINED",t[t.SOI_ANCHOR_FOUND=11]="SOI_ANCHOR_FOUND",t[t.EMPTY_MATCH_PATTERN=12]="EMPTY_MATCH_PATTERN",t[t.NO_LINE_BREAKS_FLAGS=13]="NO_LINE_BREAKS_FLAGS",t[t.UNREACHABLE_PATTERN=14]="UNREACHABLE_PATTERN",t[t.IDENTIFY_TERMINATOR=15]="IDENTIFY_TERMINATOR",t[t.CUSTOM_LINE_BREAK=16]="CUSTOM_LINE_BREAK",t[t.MULTI_MODE_LEXER_LONGER_ALT_NOT_IN_CURRENT_MODE=17]="MULTI_MODE_LEXER_LONGER_ALT_NOT_IN_CURRENT_MODE"})(Fn||(Fn={}));Vy={deferDefinitionErrorsHandling:!1,positionTracking:"full",lineTerminatorsPattern:/\n|\r\n?/g,lineTerminatorCharacters:[` `,"\r"],ensureOptimizations:!1,safeMode:!1,errorMessageProvider:bR,traceInitPerf:!1,skipValidations:!1,recoveryEnabled:!0};Object.freeze(Vy);ei=class{constructor(e,r=Vy){if(this.lexerDefinition=e,this.lexerDefinitionErrors=[],this.lexerDefinitionWarning=[],this.patternIdxToConfig={},this.charCodeToPatternIdxToConfig={},this.modes=[],this.emptyGroups={},this.trackStartLines=!0,this.trackEndLines=!0,this.hasCustom=!1,this.canModeBeOptimized={},this.TRACE_INIT=(i,a)=>{if(this.traceInitPerf===!0){this.traceInitIndent++;let s=new Array(this.traceInitIndent+1).join(" ");this.traceInitIndent <${i}>`);let{time:o,value:l}=zy(a),u=o>10?console.warn:console.log;return this.traceInitIndent time: ${o}ms`),this.traceInitIndent--,l}else return a()},typeof r=="boolean")throw Error(`The second argument to the Lexer constructor is now an ILexerConfig Object. a boolean 2nd argument is no longer supported`);this.config=ua({},Vy,r);let n=this.config.traceInitPerf;n===!0?(this.traceInitMaxIdent=1/0,this.traceInitPerf=!0):typeof n=="number"&&(this.traceInitMaxIdent=n,this.traceInitPerf=!0),this.traceInitIndent=-1,this.TRACE_INIT("Lexer Constructor",()=>{let i,a=!0;this.TRACE_INIT("Lexer Config handling",()=>{if(this.config.lineTerminatorsPattern===Vy.lineTerminatorsPattern)this.config.lineTerminatorsPattern=Bie;else if(this.config.lineTerminatorCharacters===Vy.lineTerminatorCharacters)throw Error(`Error: Missing property on the Lexer config. For details See: https://chevrotain.io/docs/guide/resolving_lexer_errors.html#MISSING_LINE_TERM_CHARS`);if(r.safeMode&&r.ensureOptimizations)throw Error('"safeMode" and "ensureOptimizations" flags are mutually exclusive.');this.trackStartLines=/full|onlyStart/i.test(this.config.positionTracking),this.trackEndLines=/full/i.test(this.config.positionTracking),Et(e)?i={modes:{defaultMode:jr(e)},defaultMode:Wg}:(a=!1,i=jr(e))}),this.config.skipValidations===!1&&(this.TRACE_INIT("performRuntimeChecks",()=>{this.lexerDefinitionErrors=this.lexerDefinitionErrors.concat(Mie(i,this.trackStartLines,this.config.lineTerminatorCharacters))}),this.TRACE_INIT("performWarningRuntimeChecks",()=>{this.lexerDefinitionWarning=this.lexerDefinitionWarning.concat(Die(i,this.trackStartLines,this.config.lineTerminatorCharacters))})),i.modes=i.modes?i.modes:{},Te(i.modes,(o,l)=>{i.modes[l]=Vh(o,u=>ar(u))});let s=Nr(i.modes);if(Te(i.modes,(o,l)=>{this.TRACE_INIT(`Mode: <${l}> processing`,()=>{if(this.modes.push(l),this.config.skipValidations===!1&&this.TRACE_INIT("validatePatterns",()=>{this.lexerDefinitionErrors=this.lexerDefinitionErrors.concat(Iie(o,s))}),ir(this.lexerDefinitionErrors)){Uu(o);let u;this.TRACE_INIT("analyzeTokenTypes",()=>{u=Nie(o,{lineTerminatorCharacters:this.config.lineTerminatorCharacters,positionTracking:r.positionTracking,ensureOptimizations:r.ensureOptimizations,safeMode:r.safeMode,tracer:this.TRACE_INIT})}),this.patternIdxToConfig[l]=u.patternIdxToConfig,this.charCodeToPatternIdxToConfig[l]=u.charCodeToPatternIdxToConfig,this.emptyGroups=ua({},this.emptyGroups,u.emptyGroups),this.hasCustom=u.hasCustom||this.hasCustom,this.canModeBeOptimized[l]=u.canBeOptimized}})}),this.defaultMode=i.defaultMode,!ir(this.lexerDefinitionErrors)&&!this.config.deferDefinitionErrorsHandling){let l=je(this.lexerDefinitionErrors,u=>u.message).join(`----------------------- `);throw new Error(`Errors detected in definition of Lexer: `+l)}Te(this.lexerDefinitionWarning,o=>{Fy(o.message)}),this.TRACE_INIT("Choosing sub-methods implementations",()=>{if(yR?(this.chopInput=qi,this.match=this.matchWithTest):(this.updateLastIndex=Yn,this.match=this.matchWithExec),a&&(this.handleModes=Yn),this.trackStartLines===!1&&(this.computeNewColumn=qi),this.trackEndLines===!1&&(this.updateTokenEndLineColumnLocation=Yn),/full/i.test(this.config.positionTracking))this.createTokenInstance=this.createFullToken;else if(/onlyStart/i.test(this.config.positionTracking))this.createTokenInstance=this.createStartOnlyToken;else if(/onlyOffset/i.test(this.config.positionTracking))this.createTokenInstance=this.createOffsetOnlyToken;else throw Error(`Invalid config option: "${this.config.positionTracking}"`);this.hasCustom?(this.addToken=this.addTokenUsingPush,this.handlePayload=this.handlePayloadWithCustom):(this.addToken=this.addTokenUsingMemberAccess,this.handlePayload=this.handlePayloadNoCustom)}),this.TRACE_INIT("Failed Optimization Warnings",()=>{let o=zr(this.canModeBeOptimized,(l,u,h)=>(u===!1&&l.push(h),l),[]);if(r.ensureOptimizations&&!ir(o))throw Error(`Lexer Modes: < ${o.join(", ")} > cannot be optimized. 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For further details see: https://chevrotain.io/docs/FAQ.html#NUMERICAL_SUFFIXES `;return u=u.replace(/[ \t]+/g," "),u=u.replace(/\s\s+/g,` `),u},buildNamespaceConflictError(t){return`Namespace conflict found in grammar. The grammar has both a Terminal(Token) and a Non-Terminal(Rule) named: <${t.name}>. To resolve this make sure each Terminal and Non-Terminal names are unique This is easy to accomplish by using the convention that Terminal names start with an uppercase letter and Non-Terminal names start with a lower case letter.`},buildAlternationPrefixAmbiguityError(t){let e=je(t.prefixPath,i=>Vu(i)).join(", "),r=t.alternation.idx===0?"":t.alternation.idx;return`Ambiguous alternatives: <${t.ambiguityIndices.join(" ,")}> due to common lookahead prefix in inside <${t.topLevelRule.name}> Rule, <${e}> may appears as a prefix path in all these alternatives. See: https://chevrotain.io/docs/guide/resolving_grammar_errors.html#COMMON_PREFIX For Further details.`},buildAlternationAmbiguityError(t){let e=je(t.prefixPath,i=>Vu(i)).join(", "),r=t.alternation.idx===0?"":t.alternation.idx,n=`Ambiguous Alternatives Detected: <${t.ambiguityIndices.join(" ,")}> in inside <${t.topLevelRule.name}> Rule, <${e}> may appears as a prefix path in all these alternatives. `;return n=n+`See: https://chevrotain.io/docs/guide/resolving_grammar_errors.html#AMBIGUOUS_ALTERNATIVES For Further details.`,n},buildEmptyRepetitionError(t){let e=Rs(t.repetition);return t.repetition.idx!==0&&(e+=t.repetition.idx),`The repetition <${e}> within Rule <${t.topLevelRule.name}> can never consume any tokens. This could lead to an infinite loop.`},buildTokenNameError(t){return"deprecated"},buildEmptyAlternationError(t){return`Ambiguous empty alternative: <${t.emptyChoiceIdx+1}> in inside <${t.topLevelRule.name}> Rule. Only the last alternative may be an empty alternative.`},buildTooManyAlternativesError(t){return`An Alternation cannot have more than 256 alternatives: inside <${t.topLevelRule.name}> Rule. has ${t.alternation.definition.length+1} alternatives.`},buildLeftRecursionError(t){let e=t.topLevelRule.name,r=je(t.leftRecursionPath,a=>a.name),n=`${e} --> ${r.concat([e]).join(" --> ")}`;return`Left Recursion found in grammar. rule: <${e}> can be invoked from itself (directly or indirectly) without consuming any Tokens. The grammar path that causes this is: ${n} To fix this refactor your grammar to remove the left recursion. see: https://en.wikipedia.org/wiki/LL_parser#Left_factoring.`},buildInvalidRuleNameError(t){return"deprecated"},buildDuplicateRuleNameError(t){let e;return t.topLevelRule instanceof Ja?e=t.topLevelRule.name:e=t.topLevelRule,`Duplicate definition, rule: ->${e}<- is already defined in the grammar: ->${t.grammarName}<-`}}});function eae(t,e){let r=new TR(t,e);return r.resolveRefs(),r.errors}var TR,tae=F(()=>{Ns();Ot();ts();TR=class extends es{constructor(e,r){super(),this.nameToTopRule=e,this.errMsgProvider=r,this.errors=[]}resolveRefs(){Te(fr(this.nameToTopRule),e=>{this.currTopLevel=e,e.accept(this)})}visitNonTerminal(e){let r=this.nameToTopRule[e.nonTerminalName];if(r)e.referencedRule=r;else{let n=this.errMsgProvider.buildRuleNotFoundError(this.currTopLevel,e);this.errors.push({message:n,type:Li.UNRESOLVED_SUBRULE_REF,ruleName:this.currTopLevel.name,unresolvedRefName:e.nonTerminalName})}}}});function Ak(t,e,r=[]){r=jr(r);let n=[],i=0;function a(o){return o.concat(li(t,i+1))}function s(o){let l=Ak(a(o),e,r);return n.concat(l)}for(;r.length{ir(l.definition)===!1&&(n=s(l.definition))}),n;if(o instanceof pr)r.push(o.terminalType);else throw Error("non exhaustive match")}i++}return n.push({partialPath:r,suffixDef:li(t,i)}),n}function _k(t,e,r,n){let i="EXIT_NONE_TERMINAL",a=[i],s="EXIT_ALTERNATIVE",o=!1,l=e.length,u=l-n-1,h=[],f=[];for(f.push({idx:-1,def:t,ruleStack:[],occurrenceStack:[]});!ir(f);){let d=f.pop();if(d===s){o&&ha(f).idx<=u&&f.pop();continue}let p=d.def,g=d.idx,m=d.ruleStack,y=d.occurrenceStack;if(ir(p))continue;let x=p[0];if(x===i){let b={idx:g,def:li(p),ruleStack:Lu(m),occurrenceStack:Lu(y)};f.push(b)}else if(x instanceof pr)if(g=0;b--){let w=x.definition[b],_={idx:g,def:w.definition.concat(li(p)),ruleStack:m,occurrenceStack:y};f.push(_),f.push(s)}else if(x instanceof En)f.push({idx:g,def:x.definition.concat(li(p)),ruleStack:m,occurrenceStack:y});else if(x instanceof Ja)f.push(iIe(x,g,m,y));else throw Error("non exhaustive match")}return h}function iIe(t,e,r,n){let i=jr(r);i.push(t.name);let a=jr(n);return a.push(1),{idx:e,def:t.definition,ruleStack:i,occurrenceStack:a}}var ER,Ek,Yg,Sk,Hy,Ck,qy,Yy=F(()=>{Ot();uR();gk();ts();ER=class extends $u{constructor(e,r){super(),this.topProd=e,this.path=r,this.possibleTokTypes=[],this.nextProductionName="",this.nextProductionOccurrence=0,this.found=!1,this.isAtEndOfPath=!1}startWalking(){if(this.found=!1,this.path.ruleStack[0]!==this.topProd.name)throw Error("The path does not start with the walker's top Rule!");return this.ruleStack=jr(this.path.ruleStack).reverse(),this.occurrenceStack=jr(this.path.occurrenceStack).reverse(),this.ruleStack.pop(),this.occurrenceStack.pop(),this.updateExpectedNext(),this.walk(this.topProd),this.possibleTokTypes}walk(e,r=[]){this.found||super.walk(e,r)}walkProdRef(e,r,n){if(e.referencedRule.name===this.nextProductionName&&e.idx===this.nextProductionOccurrence){let i=r.concat(n);this.updateExpectedNext(),this.walk(e.referencedRule,i)}}updateExpectedNext(){ir(this.ruleStack)?(this.nextProductionName="",this.nextProductionOccurrence=0,this.isAtEndOfPath=!0):(this.nextProductionName=this.ruleStack.pop(),this.nextProductionOccurrence=this.occurrenceStack.pop())}},Ek=class extends ER{constructor(e,r){super(e,r),this.path=r,this.nextTerminalName="",this.nextTerminalOccurrence=0,this.nextTerminalName=this.path.lastTok.name,this.nextTerminalOccurrence=this.path.lastTokOccurrence}walkTerminal(e,r,n){if(this.isAtEndOfPath&&e.terminalType.name===this.nextTerminalName&&e.idx===this.nextTerminalOccurrence&&!this.found){let i=r.concat(n),a=new En({definition:i});this.possibleTokTypes=jd(a),this.found=!0}}},Yg=class extends $u{constructor(e,r){super(),this.topRule=e,this.occurrence=r,this.result={token:void 0,occurrence:void 0,isEndOfRule:void 0}}startWalking(){return this.walk(this.topRule),this.result}},Sk=class extends Yg{walkMany(e,r,n){if(e.idx===this.occurrence){let i=Yi(r.concat(n));this.result.isEndOfRule=i===void 0,i instanceof pr&&(this.result.token=i.terminalType,this.result.occurrence=i.idx)}else super.walkMany(e,r,n)}},Hy=class extends Yg{walkManySep(e,r,n){if(e.idx===this.occurrence){let i=Yi(r.concat(n));this.result.isEndOfRule=i===void 0,i instanceof pr&&(this.result.token=i.terminalType,this.result.occurrence=i.idx)}else super.walkManySep(e,r,n)}},Ck=class extends Yg{walkAtLeastOne(e,r,n){if(e.idx===this.occurrence){let i=Yi(r.concat(n));this.result.isEndOfRule=i===void 0,i instanceof pr&&(this.result.token=i.terminalType,this.result.occurrence=i.idx)}else super.walkAtLeastOne(e,r,n)}},qy=class extends Yg{walkAtLeastOneSep(e,r,n){if(e.idx===this.occurrence){let i=Yi(r.concat(n));this.result.isEndOfRule=i===void 0,i instanceof pr&&(this.result.token=i.terminalType,this.result.occurrence=i.idx)}else super.walkAtLeastOneSep(e,r,n)}}});function Xy(t){if(t instanceof Zr||t==="Option")return zn.OPTION;if(t instanceof br||t==="Repetition")return zn.REPETITION;if(t instanceof Sn||t==="RepetitionMandatory")return zn.REPETITION_MANDATORY;if(t instanceof Cn||t==="RepetitionMandatoryWithSeparator")return zn.REPETITION_MANDATORY_WITH_SEPARATOR;if(t instanceof pn||t==="RepetitionWithSeparator")return zn.REPETITION_WITH_SEPARATOR;if(t instanceof 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zn,CR,Lk,Kg=F(()=>{Ot();Yy();gk();Zd();ts();(function(t){t[t.OPTION=0]="OPTION",t[t.REPETITION=1]="REPETITION",t[t.REPETITION_MANDATORY=2]="REPETITION_MANDATORY",t[t.REPETITION_MANDATORY_WITH_SEPARATOR=3]="REPETITION_MANDATORY_WITH_SEPARATOR",t[t.REPETITION_WITH_SEPARATOR=4]="REPETITION_WITH_SEPARATOR",t[t.ALTERNATION=5]="ALTERNATION"})(zn||(zn={}));CR=class extends $u{constructor(e,r,n){super(),this.topProd=e,this.targetOccurrence=r,this.targetProdType=n}startWalking(){return this.walk(this.topProd),this.restDef}checkIsTarget(e,r,n,i){return e.idx===this.targetOccurrence&&this.targetProdType===r?(this.restDef=n.concat(i),!0):!1}walkOption(e,r,n){this.checkIsTarget(e,zn.OPTION,r,n)||super.walkOption(e,r,n)}walkAtLeastOne(e,r,n){this.checkIsTarget(e,zn.REPETITION_MANDATORY,r,n)||super.walkOption(e,r,n)}walkAtLeastOneSep(e,r,n){this.checkIsTarget(e,zn.REPETITION_MANDATORY_WITH_SEPARATOR,r,n)||super.walkOption(e,r,n)}walkMany(e,r,n){this.checkIsTarget(e,zn.REPETITION,r,n)||super.walkOption(e,r,n)}walkManySep(e,r,n){this.checkIsTarget(e,zn.REPETITION_WITH_SEPARATOR,r,n)||super.walkOption(e,r,n)}},Lk=class extends es{constructor(e,r,n){super(),this.targetOccurrence=e,this.targetProdType=r,this.targetRef=n,this.result=[]}checkIsTarget(e,r){e.idx===this.targetOccurrence&&this.targetProdType===r&&(this.targetRef===void 0||e===this.targetRef)&&(this.result=e.definition)}visitOption(e){this.checkIsTarget(e,zn.OPTION)}visitRepetition(e){this.checkIsTarget(e,zn.REPETITION)}visitRepetitionMandatory(e){this.checkIsTarget(e,zn.REPETITION_MANDATORY)}visitRepetitionMandatoryWithSeparator(e){this.checkIsTarget(e,zn.REPETITION_MANDATORY_WITH_SEPARATOR)}visitRepetitionWithSeparator(e){this.checkIsTarget(e,zn.REPETITION_WITH_SEPARATOR)}visitAlternation(e){this.checkIsTarget(e,zn.ALTERNATION)}}});function uae(t){let e=t.lookaheadStrategy.validate({rules:t.rules,tokenTypes:t.tokenTypes,grammarName:t.grammarName});return je(e,r=>Object.assign({type:Li.CUSTOM_LOOKAHEAD_VALIDATION},r))}function hae(t,e,r,n){let i=fa(t,l=>sIe(l,r)),a=fIe(t,e,r),s=fa(t,l=>cIe(l,r)),o=fa(t,l=>lIe(l,t,n,r));return i.concat(a,s,o)}function sIe(t,e){let r=new AR;t.accept(r);let n=r.allProductions,i=T_(n,oIe),a=Cs(i,o=>o.length>1);return je(fr(a),o=>{let l=Yi(o),u=e.buildDuplicateFoundError(t,o),h=Rs(l),f={message:u,type:Li.DUPLICATE_PRODUCTIONS,ruleName:t.name,dslName:h,occurrence:l.idx},d=fae(l);return d&&(f.parameter=d),f})}function oIe(t){return`${Rs(t)}_#_${t.idx}_#_${fae(t)}`}function fae(t){return t instanceof pr?t.terminalType.name:t instanceof Kr?t.nonTerminalName:""}function lIe(t,e,r,n){let i=[];if(zr(e,(s,o)=>o.name===t.name?s+1:s,0)>1){let s=n.buildDuplicateRuleNameError({topLevelRule:t,grammarName:r});i.push({message:s,type:Li.DUPLICATE_RULE_NAME,ruleName:t.name})}return i}function dae(t,e,r){let n=[],i;return Bn(e,t)||(i=`Invalid rule override, rule: ->${t}<- cannot be overridden in the grammar: ->${r}<-as it is not defined in any of the super grammars `,n.push({message:i,type:Li.INVALID_RULE_OVERRIDE,ruleName:t})),n}function LR(t,e,r,n=[]){let i=[],a=Ik(e.definition);if(ir(a))return[];{let s=t.name;Bn(a,t)&&i.push({message:r.buildLeftRecursionError({topLevelRule:t,leftRecursionPath:n}),type:Li.LEFT_RECURSION,ruleName:s});let l=Uh(a,n.concat([t])),u=fa(l,h=>{let f=jr(n);return f.push(h),LR(t,h,r,f)});return i.concat(u)}}function Ik(t){let e=[];if(ir(t))return e;let r=Yi(t);if(r instanceof Kr)e.push(r.referencedRule);else if(r instanceof En||r instanceof Zr||r instanceof Sn||r instanceof Cn||r instanceof pn||r instanceof br)e=e.concat(Ik(r.definition));else if(r instanceof gn)e=Br(je(r.definition,a=>Ik(a.definition)));else if(!(r instanceof pr))throw Error("non exhaustive match");let n=Xd(r),i=t.length>1;if(n&&i){let a=li(t);return e.concat(Ik(a))}else return e}function pae(t,e){let r=new jy;t.accept(r);let n=r.alternations;return fa(n,a=>{let s=Lu(a.definition);return fa(s,(o,l)=>{let u=_k([o],[],Gu,1);return ir(u)?[{message:e.buildEmptyAlternationError({topLevelRule:t,alternation:a,emptyChoiceIdx:l}),type:Li.NONE_LAST_EMPTY_ALT,ruleName:t.name,occurrence:a.idx,alternative:l+1}]:[]})})}function gae(t,e,r){let n=new jy;t.accept(n);let i=n.alternations;return i=Vh(i,s=>s.ignoreAmbiguities===!0),fa(i,s=>{let o=s.idx,l=s.maxLookahead||e,u=Xg(o,t,l,s),h=uIe(u,s,t,r),f=hIe(u,s,t,r);return h.concat(f)})}function cIe(t,e){let r=new jy;t.accept(r);let n=r.alternations;return fa(n,a=>a.definition.length>255?[{message:e.buildTooManyAlternativesError({topLevelRule:t,alternation:a}),type:Li.TOO_MANY_ALTS,ruleName:t.name,occurrence:a.idx}]:[])}function mae(t,e,r){let n=[];return Te(t,i=>{let a=new _R;i.accept(a);let s=a.allProductions;Te(s,o=>{let l=Xy(o),u=o.maxLookahead||e,h=o.idx,d=jg(h,i,l,u)[0];if(ir(Br(d))){let p=r.buildEmptyRepetitionError({topLevelRule:i,repetition:o});n.push({message:p,type:Li.NO_NON_EMPTY_LOOKAHEAD,ruleName:i.name})}})}),n}function uIe(t,e,r,n){let i=[],a=zr(t,(o,l,u)=>(e.definition[u].ignoreAmbiguities===!0||Te(l,h=>{let f=[u];Te(t,(d,p)=>{u!==p&&Nk(d,h)&&e.definition[p].ignoreAmbiguities!==!0&&f.push(p)}),f.length>1&&!Nk(i,h)&&(i.push(h),o.push({alts:f,path:h}))}),o),[]);return je(a,o=>{let l=je(o.alts,h=>h+1);return{message:n.buildAlternationAmbiguityError({topLevelRule:r,alternation:e,ambiguityIndices:l,prefixPath:o.path}),type:Li.AMBIGUOUS_ALTS,ruleName:r.name,occurrence:e.idx,alternatives:o.alts}})}function hIe(t,e,r,n){let i=zr(t,(s,o,l)=>{let u=je(o,h=>({idx:l,path:h}));return s.concat(u)},[]);return xc(fa(i,s=>{if(e.definition[s.idx].ignoreAmbiguities===!0)return[];let l=s.idx,u=s.path,h=Fr(i,d=>e.definition[d.idx].ignoreAmbiguities!==!0&&d.idx{let p=[d.idx+1,l+1],g=e.idx===0?"":e.idx;return{message:n.buildAlternationPrefixAmbiguityError({topLevelRule:r,alternation:e,ambiguityIndices:p,prefixPath:d.path}),type:Li.AMBIGUOUS_PREFIX_ALTS,ruleName:r.name,occurrence:g,alternatives:p}})}))}function fIe(t,e,r){let n=[],i=je(e,a=>a.name);return Te(t,a=>{let s=a.name;if(Bn(i,s)){let o=r.buildNamespaceConflictError(a);n.push({message:o,type:Li.CONFLICT_TOKENS_RULES_NAMESPACE,ruleName:s})}}),n}var AR,jy,_R,Ky=F(()=>{Ot();Ns();ts();Kg();Yy();Zd();AR=class extends es{constructor(){super(...arguments),this.allProductions=[]}visitNonTerminal(e){this.allProductions.push(e)}visitOption(e){this.allProductions.push(e)}visitRepetitionWithSeparator(e){this.allProductions.push(e)}visitRepetitionMandatory(e){this.allProductions.push(e)}visitRepetitionMandatoryWithSeparator(e){this.allProductions.push(e)}visitRepetition(e){this.allProductions.push(e)}visitAlternation(e){this.allProductions.push(e)}visitTerminal(e){this.allProductions.push(e)}};jy=class extends es{constructor(){super(...arguments),this.alternations=[]}visitAlternation(e){this.alternations.push(e)}};_R=class extends es{constructor(){super(...arguments),this.allProductions=[]}visitRepetitionWithSeparator(e){this.allProductions.push(e)}visitRepetitionMandatory(e){this.allProductions.push(e)}visitRepetitionMandatoryWithSeparator(e){this.allProductions.push(e)}visitRepetition(e){this.allProductions.push(e)}}});function vae(t){let e=Gh(t,{errMsgProvider:Jie}),r={};return Te(t.rules,n=>{r[n.name]=n}),eae(r,e.errMsgProvider)}function yae(t){return t=Gh(t,{errMsgProvider:_l}),hae(t.rules,t.tokenTypes,t.errMsgProvider,t.grammarName)}var xae=F(()=>{Ot();tae();Ky();qg()});function tf(t){return Bn(Eae,t.name)}var bae,wae,kae,Tae,Eae,Zg,e0,Zy,Qy,Jy,Qg=F(()=>{Ot();bae="MismatchedTokenException",wae="NoViableAltException",kae="EarlyExitException",Tae="NotAllInputParsedException",Eae=[bae,wae,kae,Tae];Object.freeze(Eae);Zg=class extends Error{constructor(e,r){super(e),this.token=r,this.resyncedTokens=[],Object.setPrototypeOf(this,new.target.prototype),Error.captureStackTrace&&Error.captureStackTrace(this,this.constructor)}},e0=class extends Zg{constructor(e,r,n){super(e,r),this.previousToken=n,this.name=bae}},Zy=class extends Zg{constructor(e,r,n){super(e,r),this.previousToken=n,this.name=wae}},Qy=class extends Zg{constructor(e,r){super(e,r),this.name=Tae}},Jy=class extends Zg{constructor(e,r,n){super(e,r),this.previousToken=n,this.name=kae}}});function dIe(t,e,r,n,i,a,s){let o=this.getKeyForAutomaticLookahead(n,i),l=this.firstAfterRepMap[o];if(l===void 0){let d=this.getCurrRuleFullName(),p=this.getGAstProductions()[d];l=new a(p,i).startWalking(),this.firstAfterRepMap[o]=l}let u=l.token,h=l.occurrence,f=l.isEndOfRule;this.RULE_STACK.length===1&&f&&u===void 0&&(u=no,h=1),!(u===void 0||h===void 0)&&this.shouldInRepetitionRecoveryBeTried(u,h,s)&&this.tryInRepetitionRecovery(t,e,r,u)}var RR,IR,NR,Mk,MR=F(()=>{Jd();Ot();Qg();hR();Ns();RR={},IR="InRuleRecoveryException",NR=class extends Error{constructor(e){super(e),this.name=IR}},Mk=class{initRecoverable(e){this.firstAfterRepMap={},this.resyncFollows={},this.recoveryEnabled=St(e,"recoveryEnabled")?e.recoveryEnabled:rs.recoveryEnabled,this.recoveryEnabled&&(this.attemptInRepetitionRecovery=dIe)}getTokenToInsert(e){let r=Qd(e,"",NaN,NaN,NaN,NaN,NaN,NaN);return r.isInsertedInRecovery=!0,r}canTokenTypeBeInsertedInRecovery(e){return!0}canTokenTypeBeDeletedInRecovery(e){return!0}tryInRepetitionRecovery(e,r,n,i){let a=this.findReSyncTokenType(),s=this.exportLexerState(),o=[],l=!1,u=this.LA(1),h=this.LA(1),f=()=>{let d=this.LA(0),p=this.errorMessageProvider.buildMismatchTokenMessage({expected:i,actual:u,previous:d,ruleName:this.getCurrRuleFullName()}),g=new e0(p,u,this.LA(0));g.resyncedTokens=Lu(o),this.SAVE_ERROR(g)};for(;!l;)if(this.tokenMatcher(h,i)){f();return}else if(n.call(this)){f(),e.apply(this,r);return}else this.tokenMatcher(h,a)?l=!0:(h=this.SKIP_TOKEN(),this.addToResyncTokens(h,o));this.importLexerState(s)}shouldInRepetitionRecoveryBeTried(e,r,n){return!(n===!1||this.tokenMatcher(this.LA(1),e)||this.isBackTracking()||this.canPerformInRuleRecovery(e,this.getFollowsForInRuleRecovery(e,r)))}getFollowsForInRuleRecovery(e,r){let n=this.getCurrentGrammarPath(e,r);return this.getNextPossibleTokenTypes(n)}tryInRuleRecovery(e,r){if(this.canRecoverWithSingleTokenInsertion(e,r))return this.getTokenToInsert(e);if(this.canRecoverWithSingleTokenDeletion(e)){let n=this.SKIP_TOKEN();return this.consumeToken(),n}throw new NR("sad sad panda")}canPerformInRuleRecovery(e,r){return this.canRecoverWithSingleTokenInsertion(e,r)||this.canRecoverWithSingleTokenDeletion(e)}canRecoverWithSingleTokenInsertion(e,r){if(!this.canTokenTypeBeInsertedInRecovery(e)||ir(r))return!1;let n=this.LA(1);return ja(r,a=>this.tokenMatcher(n,a))!==void 0}canRecoverWithSingleTokenDeletion(e){return this.canTokenTypeBeDeletedInRecovery(e)?this.tokenMatcher(this.LA(2),e):!1}isInCurrentRuleReSyncSet(e){let r=this.getCurrFollowKey(),n=this.getFollowSetFromFollowKey(r);return Bn(n,e)}findReSyncTokenType(){let e=this.flattenFollowSet(),r=this.LA(1),n=2;for(;;){let i=ja(e,a=>Wy(r,a));if(i!==void 0)return i;r=this.LA(n),n++}}getCurrFollowKey(){if(this.RULE_STACK.length===1)return RR;let e=this.getLastExplicitRuleShortName(),r=this.getLastExplicitRuleOccurrenceIndex(),n=this.getPreviousExplicitRuleShortName();return{ruleName:this.shortRuleNameToFullName(e),idxInCallingRule:r,inRule:this.shortRuleNameToFullName(n)}}buildFullFollowKeyStack(){let e=this.RULE_STACK,r=this.RULE_OCCURRENCE_STACK;return je(e,(n,i)=>i===0?RR:{ruleName:this.shortRuleNameToFullName(n),idxInCallingRule:r[i],inRule:this.shortRuleNameToFullName(e[i-1])})}flattenFollowSet(){let e=je(this.buildFullFollowKeyStack(),r=>this.getFollowSetFromFollowKey(r));return Br(e)}getFollowSetFromFollowKey(e){if(e===RR)return[no];let r=e.ruleName+e.idxInCallingRule+mk+e.inRule;return this.resyncFollows[r]}addToResyncTokens(e,r){return this.tokenMatcher(e,no)||r.push(e),r}reSyncTo(e){let r=[],n=this.LA(1);for(;this.tokenMatcher(n,e)===!1;)n=this.SKIP_TOKEN(),this.addToResyncTokens(n,r);return Lu(r)}attemptInRepetitionRecovery(e,r,n,i,a,s,o){}getCurrentGrammarPath(e,r){let n=this.getHumanReadableRuleStack(),i=jr(this.RULE_OCCURRENCE_STACK);return{ruleStack:n,occurrenceStack:i,lastTok:e,lastTokOccurrence:r}}getHumanReadableRuleStack(){return je(this.RULE_STACK,e=>this.shortRuleNameToFullName(e))}}});function Dk(t,e,r){return r|e|t}var Ok=F(()=>{});var Hu,DR=F(()=>{Ot();qg();Ns();Ky();Kg();Hu=class{constructor(e){var r;this.maxLookahead=(r=e?.maxLookahead)!==null&&r!==void 0?r:rs.maxLookahead}validate(e){let r=this.validateNoLeftRecursion(e.rules);if(ir(r)){let n=this.validateEmptyOrAlternatives(e.rules),i=this.validateAmbiguousAlternationAlternatives(e.rules,this.maxLookahead),a=this.validateSomeNonEmptyLookaheadPath(e.rules,this.maxLookahead);return[...r,...n,...i,...a]}return r}validateNoLeftRecursion(e){return fa(e,r=>LR(r,r,_l))}validateEmptyOrAlternatives(e){return fa(e,r=>pae(r,_l))}validateAmbiguousAlternationAlternatives(e,r){return fa(e,n=>gae(n,r,_l))}validateSomeNonEmptyLookaheadPath(e,r){return mae(e,r,_l)}buildLookaheadForAlternation(e){return nae(e.prodOccurrence,e.rule,e.maxLookahead,e.hasPredicates,e.dynamicTokensEnabled,aae)}buildLookaheadForOptional(e){return iae(e.prodOccurrence,e.rule,e.maxLookahead,e.dynamicTokensEnabled,Xy(e.prodType),sae)}}});function pIe(t){Pk.reset(),t.accept(Pk);let e=Pk.dslMethods;return Pk.reset(),e}var Bk,OR,Pk,Sae=F(()=>{Ot();Ns();Ok();ts();DR();Bk=class{initLooksAhead(e){this.dynamicTokensEnabled=St(e,"dynamicTokensEnabled")?e.dynamicTokensEnabled:rs.dynamicTokensEnabled,this.maxLookahead=St(e,"maxLookahead")?e.maxLookahead:rs.maxLookahead,this.lookaheadStrategy=St(e,"lookaheadStrategy")?e.lookaheadStrategy:new Hu({maxLookahead:this.maxLookahead}),this.lookAheadFuncsCache=new Map}preComputeLookaheadFunctions(e){Te(e,r=>{this.TRACE_INIT(`${r.name} Rule Lookahead`,()=>{let{alternation:n,repetition:i,option:a,repetitionMandatory:s,repetitionMandatoryWithSeparator:o,repetitionWithSeparator:l}=pIe(r);Te(n,u=>{let h=u.idx===0?"":u.idx;this.TRACE_INIT(`${Rs(u)}${h}`,()=>{let f=this.lookaheadStrategy.buildLookaheadForAlternation({prodOccurrence:u.idx,rule:r,maxLookahead:u.maxLookahead||this.maxLookahead,hasPredicates:u.hasPredicates,dynamicTokensEnabled:this.dynamicTokensEnabled}),d=Dk(this.fullRuleNameToShort[r.name],256,u.idx);this.setLaFuncCache(d,f)})}),Te(i,u=>{this.computeLookaheadFunc(r,u.idx,768,"Repetition",u.maxLookahead,Rs(u))}),Te(a,u=>{this.computeLookaheadFunc(r,u.idx,512,"Option",u.maxLookahead,Rs(u))}),Te(s,u=>{this.computeLookaheadFunc(r,u.idx,1024,"RepetitionMandatory",u.maxLookahead,Rs(u))}),Te(o,u=>{this.computeLookaheadFunc(r,u.idx,1536,"RepetitionMandatoryWithSeparator",u.maxLookahead,Rs(u))}),Te(l,u=>{this.computeLookaheadFunc(r,u.idx,1280,"RepetitionWithSeparator",u.maxLookahead,Rs(u))})})})}computeLookaheadFunc(e,r,n,i,a,s){this.TRACE_INIT(`${s}${r===0?"":r}`,()=>{let o=this.lookaheadStrategy.buildLookaheadForOptional({prodOccurrence:r,rule:e,maxLookahead:a||this.maxLookahead,dynamicTokensEnabled:this.dynamicTokensEnabled,prodType:i}),l=Dk(this.fullRuleNameToShort[e.name],n,r);this.setLaFuncCache(l,o)})}getKeyForAutomaticLookahead(e,r){let n=this.getLastExplicitRuleShortName();return Dk(n,e,r)}getLaFuncFromCache(e){return this.lookAheadFuncsCache.get(e)}setLaFuncCache(e,r){this.lookAheadFuncsCache.set(e,r)}},OR=class extends es{constructor(){super(...arguments),this.dslMethods={option:[],alternation:[],repetition:[],repetitionWithSeparator:[],repetitionMandatory:[],repetitionMandatoryWithSeparator:[]}}reset(){this.dslMethods={option:[],alternation:[],repetition:[],repetitionWithSeparator:[],repetitionMandatory:[],repetitionMandatoryWithSeparator:[]}}visitOption(e){this.dslMethods.option.push(e)}visitRepetitionWithSeparator(e){this.dslMethods.repetitionWithSeparator.push(e)}visitRepetitionMandatory(e){this.dslMethods.repetitionMandatory.push(e)}visitRepetitionMandatoryWithSeparator(e){this.dslMethods.repetitionMandatoryWithSeparator.push(e)}visitRepetition(e){this.dslMethods.repetition.push(e)}visitAlternation(e){this.dslMethods.alternation.push(e)}},Pk=new OR});function FR(t,e){isNaN(t.startOffset)===!0?(t.startOffset=e.startOffset,t.endOffset=e.endOffset):t.endOffset{});function $R(t,e){Object.defineProperty(t,gIe,{enumerable:!1,configurable:!0,writable:!1,value:e})}var gIe,Lae=F(()=>{gIe="name"});function mIe(t,e){let r=Nr(t),n=r.length;for(let i=0;is.msg);throw Error(`Errors Detected in CST Visitor <${this.constructor.name}>: ${a.join(` `).replace(/\n/g,` `)}`)}}};return r.prototype=n,r.prototype.constructor=r,r._RULE_NAMES=e,r}function Nae(t,e,r){let n=function(){};$R(n,t+"BaseSemanticsWithDefaults");let i=Object.create(r.prototype);return Te(e,a=>{i[a]=mIe}),n.prototype=i,n.prototype.constructor=n,n}function vIe(t,e){return yIe(t,e)}function yIe(t,e){let r=Fr(e,i=>gi(t[i])===!1),n=je(r,i=>({msg:`Missing visitor method: <${i}> on ${t.constructor.name} CST Visitor.`,type:GR.MISSING_METHOD,methodName:i}));return xc(n)}var GR,Iae=F(()=>{Ot();Lae();(function(t){t[t.REDUNDANT_METHOD=0]="REDUNDANT_METHOD",t[t.MISSING_METHOD=1]="MISSING_METHOD"})(GR||(GR={}))});var Gk,Mae=F(()=>{_ae();Ot();Iae();Ns();Gk=class{initTreeBuilder(e){if(this.CST_STACK=[],this.outputCst=e.outputCst,this.nodeLocationTracking=St(e,"nodeLocationTracking")?e.nodeLocationTracking:rs.nodeLocationTracking,!this.outputCst)this.cstInvocationStateUpdate=Yn,this.cstFinallyStateUpdate=Yn,this.cstPostTerminal=Yn,this.cstPostNonTerminal=Yn,this.cstPostRule=Yn;else if(/full/i.test(this.nodeLocationTracking))this.recoveryEnabled?(this.setNodeLocationFromToken=zR,this.setNodeLocationFromNode=zR,this.cstPostRule=Yn,this.setInitialNodeLocation=this.setInitialNodeLocationFullRecovery):(this.setNodeLocationFromToken=Yn,this.setNodeLocationFromNode=Yn,this.cstPostRule=this.cstPostRuleFull,this.setInitialNodeLocation=this.setInitialNodeLocationFullRegular);else if(/onlyOffset/i.test(this.nodeLocationTracking))this.recoveryEnabled?(this.setNodeLocationFromToken=FR,this.setNodeLocationFromNode=FR,this.cstPostRule=Yn,this.setInitialNodeLocation=this.setInitialNodeLocationOnlyOffsetRecovery):(this.setNodeLocationFromToken=Yn,this.setNodeLocationFromNode=Yn,this.cstPostRule=this.cstPostRuleOnlyOffset,this.setInitialNodeLocation=this.setInitialNodeLocationOnlyOffsetRegular);else if(/none/i.test(this.nodeLocationTracking))this.setNodeLocationFromToken=Yn,this.setNodeLocationFromNode=Yn,this.cstPostRule=Yn,this.setInitialNodeLocation=Yn;else throw Error(`Invalid config option: "${e.nodeLocationTracking}"`)}setInitialNodeLocationOnlyOffsetRecovery(e){e.location={startOffset:NaN,endOffset:NaN}}setInitialNodeLocationOnlyOffsetRegular(e){e.location={startOffset:this.LA(1).startOffset,endOffset:NaN}}setInitialNodeLocationFullRecovery(e){e.location={startOffset:NaN,startLine:NaN,startColumn:NaN,endOffset:NaN,endLine:NaN,endColumn:NaN}}setInitialNodeLocationFullRegular(e){let r=this.LA(1);e.location={startOffset:r.startOffset,startLine:r.startLine,startColumn:r.startColumn,endOffset:NaN,endLine:NaN,endColumn:NaN}}cstInvocationStateUpdate(e){let r={name:e,children:Object.create(null)};this.setInitialNodeLocation(r),this.CST_STACK.push(r)}cstFinallyStateUpdate(){this.CST_STACK.pop()}cstPostRuleFull(e){let r=this.LA(0),n=e.location;n.startOffset<=r.startOffset?(n.endOffset=r.endOffset,n.endLine=r.endLine,n.endColumn=r.endColumn):(n.startOffset=NaN,n.startLine=NaN,n.startColumn=NaN)}cstPostRuleOnlyOffset(e){let r=this.LA(0),n=e.location;n.startOffset<=r.startOffset?n.endOffset=r.endOffset:n.startOffset=NaN}cstPostTerminal(e,r){let n=this.CST_STACK[this.CST_STACK.length-1];Cae(n,r,e),this.setNodeLocationFromToken(n.location,r)}cstPostNonTerminal(e,r){let n=this.CST_STACK[this.CST_STACK.length-1];Aae(n,r,e),this.setNodeLocationFromNode(n.location,e.location)}getBaseCstVisitorConstructor(){if(ar(this.baseCstVisitorConstructor)){let e=Rae(this.className,Nr(this.gastProductionsCache));return this.baseCstVisitorConstructor=e,e}return this.baseCstVisitorConstructor}getBaseCstVisitorConstructorWithDefaults(){if(ar(this.baseCstVisitorWithDefaultsConstructor)){let e=Nae(this.className,Nr(this.gastProductionsCache),this.getBaseCstVisitorConstructor());return this.baseCstVisitorWithDefaultsConstructor=e,e}return this.baseCstVisitorWithDefaultsConstructor}getLastExplicitRuleShortName(){let e=this.RULE_STACK;return e[e.length-1]}getPreviousExplicitRuleShortName(){let e=this.RULE_STACK;return e[e.length-2]}getLastExplicitRuleOccurrenceIndex(){let e=this.RULE_OCCURRENCE_STACK;return e[e.length-1]}}});var Uk,Dae=F(()=>{Ns();Uk=class{initLexerAdapter(){this.tokVector=[],this.tokVectorLength=0,this.currIdx=-1}set input(e){if(this.selfAnalysisDone!==!0)throw Error("Missing invocation at the end of the Parser's constructor.");this.reset(),this.tokVector=e,this.tokVectorLength=e.length}get input(){return this.tokVector}SKIP_TOKEN(){return this.currIdx<=this.tokVector.length-2?(this.consumeToken(),this.LA(1)):Jg}LA(e){let r=this.currIdx+e;return r<0||this.tokVectorLength<=r?Jg:this.tokVector[r]}consumeToken(){this.currIdx++}exportLexerState(){return this.currIdx}importLexerState(e){this.currIdx=e}resetLexerState(){this.currIdx=-1}moveToTerminatedState(){this.currIdx=this.tokVector.length-1}getLexerPosition(){return this.exportLexerState()}}});var Vk,Oae=F(()=>{Ot();Qg();Ns();qg();Ky();ts();Vk=class{ACTION(e){return e.call(this)}consume(e,r,n){return this.consumeInternal(r,e,n)}subrule(e,r,n){return this.subruleInternal(r,e,n)}option(e,r){return this.optionInternal(r,e)}or(e,r){return this.orInternal(r,e)}many(e,r){return this.manyInternal(e,r)}atLeastOne(e,r){return this.atLeastOneInternal(e,r)}CONSUME(e,r){return this.consumeInternal(e,0,r)}CONSUME1(e,r){return this.consumeInternal(e,1,r)}CONSUME2(e,r){return this.consumeInternal(e,2,r)}CONSUME3(e,r){return this.consumeInternal(e,3,r)}CONSUME4(e,r){return this.consumeInternal(e,4,r)}CONSUME5(e,r){return this.consumeInternal(e,5,r)}CONSUME6(e,r){return this.consumeInternal(e,6,r)}CONSUME7(e,r){return this.consumeInternal(e,7,r)}CONSUME8(e,r){return this.consumeInternal(e,8,r)}CONSUME9(e,r){return this.consumeInternal(e,9,r)}SUBRULE(e,r){return this.subruleInternal(e,0,r)}SUBRULE1(e,r){return this.subruleInternal(e,1,r)}SUBRULE2(e,r){return this.subruleInternal(e,2,r)}SUBRULE3(e,r){return this.subruleInternal(e,3,r)}SUBRULE4(e,r){return this.subruleInternal(e,4,r)}SUBRULE5(e,r){return this.subruleInternal(e,5,r)}SUBRULE6(e,r){return this.subruleInternal(e,6,r)}SUBRULE7(e,r){return this.subruleInternal(e,7,r)}SUBRULE8(e,r){return this.subruleInternal(e,8,r)}SUBRULE9(e,r){return this.subruleInternal(e,9,r)}OPTION(e){return this.optionInternal(e,0)}OPTION1(e){return this.optionInternal(e,1)}OPTION2(e){return this.optionInternal(e,2)}OPTION3(e){return this.optionInternal(e,3)}OPTION4(e){return this.optionInternal(e,4)}OPTION5(e){return this.optionInternal(e,5)}OPTION6(e){return this.optionInternal(e,6)}OPTION7(e){return this.optionInternal(e,7)}OPTION8(e){return this.optionInternal(e,8)}OPTION9(e){return this.optionInternal(e,9)}OR(e){return this.orInternal(e,0)}OR1(e){return this.orInternal(e,1)}OR2(e){return this.orInternal(e,2)}OR3(e){return this.orInternal(e,3)}OR4(e){return this.orInternal(e,4)}OR5(e){return this.orInternal(e,5)}OR6(e){return this.orInternal(e,6)}OR7(e){return this.orInternal(e,7)}OR8(e){return this.orInternal(e,8)}OR9(e){return this.orInternal(e,9)}MANY(e){this.manyInternal(0,e)}MANY1(e){this.manyInternal(1,e)}MANY2(e){this.manyInternal(2,e)}MANY3(e){this.manyInternal(3,e)}MANY4(e){this.manyInternal(4,e)}MANY5(e){this.manyInternal(5,e)}MANY6(e){this.manyInternal(6,e)}MANY7(e){this.manyInternal(7,e)}MANY8(e){this.manyInternal(8,e)}MANY9(e){this.manyInternal(9,e)}MANY_SEP(e){this.manySepFirstInternal(0,e)}MANY_SEP1(e){this.manySepFirstInternal(1,e)}MANY_SEP2(e){this.manySepFirstInternal(2,e)}MANY_SEP3(e){this.manySepFirstInternal(3,e)}MANY_SEP4(e){this.manySepFirstInternal(4,e)}MANY_SEP5(e){this.manySepFirstInternal(5,e)}MANY_SEP6(e){this.manySepFirstInternal(6,e)}MANY_SEP7(e){this.manySepFirstInternal(7,e)}MANY_SEP8(e){this.manySepFirstInternal(8,e)}MANY_SEP9(e){this.manySepFirstInternal(9,e)}AT_LEAST_ONE(e){this.atLeastOneInternal(0,e)}AT_LEAST_ONE1(e){return this.atLeastOneInternal(1,e)}AT_LEAST_ONE2(e){this.atLeastOneInternal(2,e)}AT_LEAST_ONE3(e){this.atLeastOneInternal(3,e)}AT_LEAST_ONE4(e){this.atLeastOneInternal(4,e)}AT_LEAST_ONE5(e){this.atLeastOneInternal(5,e)}AT_LEAST_ONE6(e){this.atLeastOneInternal(6,e)}AT_LEAST_ONE7(e){this.atLeastOneInternal(7,e)}AT_LEAST_ONE8(e){this.atLeastOneInternal(8,e)}AT_LEAST_ONE9(e){this.atLeastOneInternal(9,e)}AT_LEAST_ONE_SEP(e){this.atLeastOneSepFirstInternal(0,e)}AT_LEAST_ONE_SEP1(e){this.atLeastOneSepFirstInternal(1,e)}AT_LEAST_ONE_SEP2(e){this.atLeastOneSepFirstInternal(2,e)}AT_LEAST_ONE_SEP3(e){this.atLeastOneSepFirstInternal(3,e)}AT_LEAST_ONE_SEP4(e){this.atLeastOneSepFirstInternal(4,e)}AT_LEAST_ONE_SEP5(e){this.atLeastOneSepFirstInternal(5,e)}AT_LEAST_ONE_SEP6(e){this.atLeastOneSepFirstInternal(6,e)}AT_LEAST_ONE_SEP7(e){this.atLeastOneSepFirstInternal(7,e)}AT_LEAST_ONE_SEP8(e){this.atLeastOneSepFirstInternal(8,e)}AT_LEAST_ONE_SEP9(e){this.atLeastOneSepFirstInternal(9,e)}RULE(e,r,n=em){if(Bn(this.definedRulesNames,e)){let s={message:_l.buildDuplicateRuleNameError({topLevelRule:e,grammarName:this.className}),type:Li.DUPLICATE_RULE_NAME,ruleName:e};this.definitionErrors.push(s)}this.definedRulesNames.push(e);let i=this.defineRule(e,r,n);return this[e]=i,i}OVERRIDE_RULE(e,r,n=em){let i=dae(e,this.definedRulesNames,this.className);this.definitionErrors=this.definitionErrors.concat(i);let a=this.defineRule(e,r,n);return this[e]=a,a}BACKTRACK(e,r){return function(){this.isBackTrackingStack.push(1);let n=this.saveRecogState();try{return e.apply(this,r),!0}catch(i){if(tf(i))return!1;throw i}finally{this.reloadRecogState(n),this.isBackTrackingStack.pop()}}}getGAstProductions(){return this.gastProductionsCache}getSerializedGastProductions(){return dk(fr(this.gastProductionsCache))}}});var Wk,Pae=F(()=>{Ot();Ok();Qg();Kg();Yy();Ns();MR();Jd();Zd();Wk=class{initRecognizerEngine(e,r){if(this.className=this.constructor.name,this.shortRuleNameToFull={},this.fullRuleNameToShort={},this.ruleShortNameIdx=256,this.tokenMatcher=Hg,this.subruleIdx=0,this.definedRulesNames=[],this.tokensMap={},this.isBackTrackingStack=[],this.RULE_STACK=[],this.RULE_OCCURRENCE_STACK=[],this.gastProductionsCache={},St(r,"serializedGrammar"))throw Error(`The Parser's configuration can no longer contain a property. See: https://chevrotain.io/docs/changes/BREAKING_CHANGES.html#_6-0-0 For Further details.`);if(Et(e)){if(ir(e))throw Error(`A Token Vocabulary cannot be empty. Note that the first argument for the parser constructor is no longer a Token vector (since v4.0).`);if(typeof e[0].startOffset=="number")throw Error(`The Parser constructor no longer accepts a token vector as the first argument. See: https://chevrotain.io/docs/changes/BREAKING_CHANGES.html#_4-0-0 For Further details.`)}if(Et(e))this.tokensMap=zr(e,(a,s)=>(a[s.name]=s,a),{});else if(St(e,"modes")&&_a(Br(fr(e.modes)),Wie)){let a=Br(fr(e.modes)),s=bg(a);this.tokensMap=zr(s,(o,l)=>(o[l.name]=l,o),{})}else if(dn(e))this.tokensMap=jr(e);else throw new Error(" argument must be An Array of Token constructors, A dictionary of Token constructors or an IMultiModeLexerDefinition");this.tokensMap.EOF=no;let n=St(e,"modes")?Br(fr(e.modes)):fr(e),i=_a(n,a=>ir(a.categoryMatches));this.tokenMatcher=i?Hg:Gu,Uu(fr(this.tokensMap))}defineRule(e,r,n){if(this.selfAnalysisDone)throw Error(`Grammar rule <${e}> may not be defined after the 'performSelfAnalysis' method has been called' Make sure that all grammar rule definitions are done before 'performSelfAnalysis' is called.`);let i=St(n,"resyncEnabled")?n.resyncEnabled:em.resyncEnabled,a=St(n,"recoveryValueFunc")?n.recoveryValueFunc:em.recoveryValueFunc,s=this.ruleShortNameIdx<<12;this.ruleShortNameIdx++,this.shortRuleNameToFull[s]=e,this.fullRuleNameToShort[e]=s;let o;return this.outputCst===!0?o=function(...h){try{this.ruleInvocationStateUpdate(s,e,this.subruleIdx),r.apply(this,h);let f=this.CST_STACK[this.CST_STACK.length-1];return this.cstPostRule(f),f}catch(f){return this.invokeRuleCatch(f,i,a)}finally{this.ruleFinallyStateUpdate()}}:o=function(...h){try{return this.ruleInvocationStateUpdate(s,e,this.subruleIdx),r.apply(this,h)}catch(f){return this.invokeRuleCatch(f,i,a)}finally{this.ruleFinallyStateUpdate()}},Object.assign(o,{ruleName:e,originalGrammarAction:r})}invokeRuleCatch(e,r,n){let i=this.RULE_STACK.length===1,a=r&&!this.isBackTracking()&&this.recoveryEnabled;if(tf(e)){let s=e;if(a){let o=this.findReSyncTokenType();if(this.isInCurrentRuleReSyncSet(o))if(s.resyncedTokens=this.reSyncTo(o),this.outputCst){let l=this.CST_STACK[this.CST_STACK.length-1];return l.recoveredNode=!0,l}else return n(e);else{if(this.outputCst){let l=this.CST_STACK[this.CST_STACK.length-1];l.recoveredNode=!0,s.partialCstResult=l}throw s}}else{if(i)return this.moveToTerminatedState(),n(e);throw s}}else throw e}optionInternal(e,r){let n=this.getKeyForAutomaticLookahead(512,r);return this.optionInternalLogic(e,r,n)}optionInternalLogic(e,r,n){let i=this.getLaFuncFromCache(n),a;if(typeof e!="function"){a=e.DEF;let s=e.GATE;if(s!==void 0){let o=i;i=()=>s.call(this)&&o.call(this)}}else a=e;if(i.call(this)===!0)return a.call(this)}atLeastOneInternal(e,r){let n=this.getKeyForAutomaticLookahead(1024,e);return this.atLeastOneInternalLogic(e,r,n)}atLeastOneInternalLogic(e,r,n){let i=this.getLaFuncFromCache(n),a;if(typeof r!="function"){a=r.DEF;let s=r.GATE;if(s!==void 0){let o=i;i=()=>s.call(this)&&o.call(this)}}else a=r;if(i.call(this)===!0){let s=this.doSingleRepetition(a);for(;i.call(this)===!0&&s===!0;)s=this.doSingleRepetition(a)}else throw this.raiseEarlyExitException(e,zn.REPETITION_MANDATORY,r.ERR_MSG);this.attemptInRepetitionRecovery(this.atLeastOneInternal,[e,r],i,1024,e,Ck)}atLeastOneSepFirstInternal(e,r){let n=this.getKeyForAutomaticLookahead(1536,e);this.atLeastOneSepFirstInternalLogic(e,r,n)}atLeastOneSepFirstInternalLogic(e,r,n){let i=r.DEF,a=r.SEP;if(this.getLaFuncFromCache(n).call(this)===!0){i.call(this);let o=()=>this.tokenMatcher(this.LA(1),a);for(;this.tokenMatcher(this.LA(1),a)===!0;)this.CONSUME(a),i.call(this);this.attemptInRepetitionRecovery(this.repetitionSepSecondInternal,[e,a,o,i,qy],o,1536,e,qy)}else throw this.raiseEarlyExitException(e,zn.REPETITION_MANDATORY_WITH_SEPARATOR,r.ERR_MSG)}manyInternal(e,r){let n=this.getKeyForAutomaticLookahead(768,e);return this.manyInternalLogic(e,r,n)}manyInternalLogic(e,r,n){let i=this.getLaFuncFromCache(n),a;if(typeof r!="function"){a=r.DEF;let o=r.GATE;if(o!==void 0){let l=i;i=()=>o.call(this)&&l.call(this)}}else a=r;let s=!0;for(;i.call(this)===!0&&s===!0;)s=this.doSingleRepetition(a);this.attemptInRepetitionRecovery(this.manyInternal,[e,r],i,768,e,Sk,s)}manySepFirstInternal(e,r){let n=this.getKeyForAutomaticLookahead(1280,e);this.manySepFirstInternalLogic(e,r,n)}manySepFirstInternalLogic(e,r,n){let i=r.DEF,a=r.SEP;if(this.getLaFuncFromCache(n).call(this)===!0){i.call(this);let o=()=>this.tokenMatcher(this.LA(1),a);for(;this.tokenMatcher(this.LA(1),a)===!0;)this.CONSUME(a),i.call(this);this.attemptInRepetitionRecovery(this.repetitionSepSecondInternal,[e,a,o,i,Hy],o,1280,e,Hy)}}repetitionSepSecondInternal(e,r,n,i,a){for(;n();)this.CONSUME(r),i.call(this);this.attemptInRepetitionRecovery(this.repetitionSepSecondInternal,[e,r,n,i,a],n,1536,e,a)}doSingleRepetition(e){let r=this.getLexerPosition();return e.call(this),this.getLexerPosition()>r}orInternal(e,r){let n=this.getKeyForAutomaticLookahead(256,r),i=Et(e)?e:e.DEF,s=this.getLaFuncFromCache(n).call(this,i);if(s!==void 0)return i[s].ALT.call(this);this.raiseNoAltException(r,e.ERR_MSG)}ruleFinallyStateUpdate(){if(this.RULE_STACK.pop(),this.RULE_OCCURRENCE_STACK.pop(),this.cstFinallyStateUpdate(),this.RULE_STACK.length===0&&this.isAtEndOfInput()===!1){let e=this.LA(1),r=this.errorMessageProvider.buildNotAllInputParsedMessage({firstRedundant:e,ruleName:this.getCurrRuleFullName()});this.SAVE_ERROR(new Qy(r,e))}}subruleInternal(e,r,n){let i;try{let a=n!==void 0?n.ARGS:void 0;return this.subruleIdx=r,i=e.apply(this,a),this.cstPostNonTerminal(i,n!==void 0&&n.LABEL!==void 0?n.LABEL:e.ruleName),i}catch(a){throw this.subruleInternalError(a,n,e.ruleName)}}subruleInternalError(e,r,n){throw tf(e)&&e.partialCstResult!==void 0&&(this.cstPostNonTerminal(e.partialCstResult,r!==void 0&&r.LABEL!==void 0?r.LABEL:n),delete e.partialCstResult),e}consumeInternal(e,r,n){let i;try{let a=this.LA(1);this.tokenMatcher(a,e)===!0?(this.consumeToken(),i=a):this.consumeInternalError(e,a,n)}catch(a){i=this.consumeInternalRecovery(e,r,a)}return this.cstPostTerminal(n!==void 0&&n.LABEL!==void 0?n.LABEL:e.name,i),i}consumeInternalError(e,r,n){let i,a=this.LA(0);throw n!==void 0&&n.ERR_MSG?i=n.ERR_MSG:i=this.errorMessageProvider.buildMismatchTokenMessage({expected:e,actual:r,previous:a,ruleName:this.getCurrRuleFullName()}),this.SAVE_ERROR(new e0(i,r,a))}consumeInternalRecovery(e,r,n){if(this.recoveryEnabled&&n.name==="MismatchedTokenException"&&!this.isBackTracking()){let i=this.getFollowsForInRuleRecovery(e,r);try{return this.tryInRuleRecovery(e,i)}catch(a){throw a.name===IR?n:a}}else throw n}saveRecogState(){let e=this.errors,r=jr(this.RULE_STACK);return{errors:e,lexerState:this.exportLexerState(),RULE_STACK:r,CST_STACK:this.CST_STACK}}reloadRecogState(e){this.errors=e.errors,this.importLexerState(e.lexerState),this.RULE_STACK=e.RULE_STACK}ruleInvocationStateUpdate(e,r,n){this.RULE_OCCURRENCE_STACK.push(n),this.RULE_STACK.push(e),this.cstInvocationStateUpdate(r)}isBackTracking(){return this.isBackTrackingStack.length!==0}getCurrRuleFullName(){let e=this.getLastExplicitRuleShortName();return this.shortRuleNameToFull[e]}shortRuleNameToFullName(e){return this.shortRuleNameToFull[e]}isAtEndOfInput(){return this.tokenMatcher(this.LA(1),no)}reset(){this.resetLexerState(),this.subruleIdx=0,this.isBackTrackingStack=[],this.errors=[],this.RULE_STACK=[],this.CST_STACK=[],this.RULE_OCCURRENCE_STACK=[]}}});var Hk,Bae=F(()=>{Qg();Ot();Kg();Ns();Hk=class{initErrorHandler(e){this._errors=[],this.errorMessageProvider=St(e,"errorMessageProvider")?e.errorMessageProvider:rs.errorMessageProvider}SAVE_ERROR(e){if(tf(e))return e.context={ruleStack:this.getHumanReadableRuleStack(),ruleOccurrenceStack:jr(this.RULE_OCCURRENCE_STACK)},this._errors.push(e),e;throw Error("Trying to save an Error which is not a RecognitionException")}get errors(){return jr(this._errors)}set errors(e){this._errors=e}raiseEarlyExitException(e,r,n){let i=this.getCurrRuleFullName(),a=this.getGAstProductions()[i],o=jg(e,a,r,this.maxLookahead)[0],l=[];for(let h=1;h<=this.maxLookahead;h++)l.push(this.LA(h));let u=this.errorMessageProvider.buildEarlyExitMessage({expectedIterationPaths:o,actual:l,previous:this.LA(0),customUserDescription:n,ruleName:i});throw this.SAVE_ERROR(new Jy(u,this.LA(1),this.LA(0)))}raiseNoAltException(e,r){let n=this.getCurrRuleFullName(),i=this.getGAstProductions()[n],a=Xg(e,i,this.maxLookahead),s=[];for(let u=1;u<=this.maxLookahead;u++)s.push(this.LA(u));let o=this.LA(0),l=this.errorMessageProvider.buildNoViableAltMessage({expectedPathsPerAlt:a,actual:s,previous:o,customUserDescription:r,ruleName:this.getCurrRuleFullName()});throw this.SAVE_ERROR(new Zy(l,this.LA(1),o))}}});var qk,Fae=F(()=>{Yy();Ot();qk=class{initContentAssist(){}computeContentAssist(e,r){let n=this.gastProductionsCache[e];if(ar(n))throw Error(`Rule ->${e}<- does not exist in this grammar.`);return _k([n],r,this.tokenMatcher,this.maxLookahead)}getNextPossibleTokenTypes(e){let r=Yi(e.ruleStack),i=this.getGAstProductions()[r];return new Ek(i,e).startWalking()}}});function t2(t,e,r,n=!1){Xk(r);let i=ha(this.recordingProdStack),a=gi(e)?e:e.DEF,s=new t({definition:[],idx:r});return n&&(s.separator=e.SEP),St(e,"MAX_LOOKAHEAD")&&(s.maxLookahead=e.MAX_LOOKAHEAD),this.recordingProdStack.push(s),a.call(this),i.definition.push(s),this.recordingProdStack.pop(),jk}function wIe(t,e){Xk(e);let r=ha(this.recordingProdStack),n=Et(t)===!1,i=n===!1?t:t.DEF,a=new gn({definition:[],idx:e,ignoreAmbiguities:n&&t.IGNORE_AMBIGUITIES===!0});St(t,"MAX_LOOKAHEAD")&&(a.maxLookahead=t.MAX_LOOKAHEAD);let s=sy(i,o=>gi(o.GATE));return a.hasPredicates=s,r.definition.push(a),Te(i,o=>{let l=new En({definition:[]});a.definition.push(l),St(o,"IGNORE_AMBIGUITIES")?l.ignoreAmbiguities=o.IGNORE_AMBIGUITIES:St(o,"GATE")&&(l.ignoreAmbiguities=!0),this.recordingProdStack.push(l),o.ALT.call(this),this.recordingProdStack.pop()}),jk}function Gae(t){return t===0?"":`${t}`}function Xk(t){if(t<0||t>$ae){let e=new Error(`Invalid DSL Method idx value: <${t}> Idx value must be a none negative value smaller than ${$ae+1}`);throw e.KNOWN_RECORDER_ERROR=!0,e}}var jk,zae,$ae,Uae,Vae,bIe,Yk,Wae=F(()=>{Ot();ts();Uy();Zd();Jd();Ns();Ok();jk={description:"This Object indicates the Parser is during Recording Phase"};Object.freeze(jk);zae=!0,$ae=Math.pow(2,8)-1,Uae=Tk({name:"RECORDING_PHASE_TOKEN",pattern:ei.NA});Uu([Uae]);Vae=Qd(Uae,`This IToken indicates the Parser is in Recording Phase See: https://chevrotain.io/docs/guide/internals.html#grammar-recording for details`,-1,-1,-1,-1,-1,-1);Object.freeze(Vae);bIe={name:`This CSTNode indicates the Parser is in Recording Phase See: https://chevrotain.io/docs/guide/internals.html#grammar-recording for details`,children:{}},Yk=class{initGastRecorder(e){this.recordingProdStack=[],this.RECORDING_PHASE=!1}enableRecording(){this.RECORDING_PHASE=!0,this.TRACE_INIT("Enable Recording",()=>{for(let e=0;e<10;e++){let r=e>0?e:"";this[`CONSUME${r}`]=function(n,i){return this.consumeInternalRecord(n,e,i)},this[`SUBRULE${r}`]=function(n,i){return this.subruleInternalRecord(n,e,i)},this[`OPTION${r}`]=function(n){return this.optionInternalRecord(n,e)},this[`OR${r}`]=function(n){return this.orInternalRecord(n,e)},this[`MANY${r}`]=function(n){this.manyInternalRecord(e,n)},this[`MANY_SEP${r}`]=function(n){this.manySepFirstInternalRecord(e,n)},this[`AT_LEAST_ONE${r}`]=function(n){this.atLeastOneInternalRecord(e,n)},this[`AT_LEAST_ONE_SEP${r}`]=function(n){this.atLeastOneSepFirstInternalRecord(e,n)}}this.consume=function(e,r,n){return this.consumeInternalRecord(r,e,n)},this.subrule=function(e,r,n){return this.subruleInternalRecord(r,e,n)},this.option=function(e,r){return this.optionInternalRecord(r,e)},this.or=function(e,r){return this.orInternalRecord(r,e)},this.many=function(e,r){this.manyInternalRecord(e,r)},this.atLeastOne=function(e,r){this.atLeastOneInternalRecord(e,r)},this.ACTION=this.ACTION_RECORD,this.BACKTRACK=this.BACKTRACK_RECORD,this.LA=this.LA_RECORD})}disableRecording(){this.RECORDING_PHASE=!1,this.TRACE_INIT("Deleting Recording methods",()=>{let e=this;for(let r=0;r<10;r++){let n=r>0?r:"";delete e[`CONSUME${n}`],delete e[`SUBRULE${n}`],delete e[`OPTION${n}`],delete e[`OR${n}`],delete e[`MANY${n}`],delete e[`MANY_SEP${n}`],delete e[`AT_LEAST_ONE${n}`],delete e[`AT_LEAST_ONE_SEP${n}`]}delete e.consume,delete e.subrule,delete e.option,delete e.or,delete e.many,delete e.atLeastOne,delete e.ACTION,delete e.BACKTRACK,delete e.LA})}ACTION_RECORD(e){}BACKTRACK_RECORD(e,r){return()=>!0}LA_RECORD(e){return Jg}topLevelRuleRecord(e,r){try{let n=new Ja({definition:[],name:e});return n.name=e,this.recordingProdStack.push(n),r.call(this),this.recordingProdStack.pop(),n}catch(n){if(n.KNOWN_RECORDER_ERROR!==!0)try{n.message=n.message+` This error was thrown during the "grammar recording phase" For more info see: https://chevrotain.io/docs/guide/internals.html#grammar-recording`}catch{throw n}throw n}}optionInternalRecord(e,r){return t2.call(this,Zr,e,r)}atLeastOneInternalRecord(e,r){t2.call(this,Sn,r,e)}atLeastOneSepFirstInternalRecord(e,r){t2.call(this,Cn,r,e,zae)}manyInternalRecord(e,r){t2.call(this,br,r,e)}manySepFirstInternalRecord(e,r){t2.call(this,pn,r,e,zae)}orInternalRecord(e,r){return wIe.call(this,e,r)}subruleInternalRecord(e,r,n){if(Xk(r),!e||St(e,"ruleName")===!1){let o=new Error(` argument is invalid expecting a Parser method reference but got: <${JSON.stringify(e)}> inside top level rule: <${this.recordingProdStack[0].name}>`);throw o.KNOWN_RECORDER_ERROR=!0,o}let i=ha(this.recordingProdStack),a=e.ruleName,s=new Kr({idx:r,nonTerminalName:a,label:n?.LABEL,referencedRule:void 0});return i.definition.push(s),this.outputCst?bIe:jk}consumeInternalRecord(e,r,n){if(Xk(r),!xR(e)){let s=new Error(` argument is invalid expecting a TokenType reference but got: <${JSON.stringify(e)}> inside top level rule: <${this.recordingProdStack[0].name}>`);throw s.KNOWN_RECORDER_ERROR=!0,s}let i=ha(this.recordingProdStack),a=new pr({idx:r,terminalType:e,label:n?.LABEL});return i.definition.push(a),Vae}}});var Kk,Hae=F(()=>{Ot();$g();Ns();Kk=class{initPerformanceTracer(e){if(St(e,"traceInitPerf")){let r=e.traceInitPerf,n=typeof r=="number";this.traceInitMaxIdent=n?r:1/0,this.traceInitPerf=n?r>0:r}else this.traceInitMaxIdent=0,this.traceInitPerf=rs.traceInitPerf;this.traceInitIndent=-1}TRACE_INIT(e,r){if(this.traceInitPerf===!0){this.traceInitIndent++;let n=new Array(this.traceInitIndent+1).join(" ");this.traceInitIndent <${e}>`);let{time:i,value:a}=zy(r),s=i>10?console.warn:console.log;return this.traceInitIndent time: ${i}ms`),this.traceInitIndent--,a}else return r()}}});function qae(t,e){e.forEach(r=>{let n=r.prototype;Object.getOwnPropertyNames(n).forEach(i=>{if(i==="constructor")return;let a=Object.getOwnPropertyDescriptor(n,i);a&&(a.get||a.set)?Object.defineProperty(t.prototype,i,a):t.prototype[i]=r.prototype[i]})})}var Yae=F(()=>{});function Zk(t=void 0){return function(){return t}}var 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l=a.getLinkedNode({reference:s,container:e,property:r});if(l.error&&_i(e).state{Al();y2=class{getName(e){if(Doe(e))return e.name}getNameNode(e){return Py(e.$cstNode,"name")}}});var x2,MN=F(()=>{Al();$o();Qa();El();Ls();Mc();x2=class{constructor(e){this.nameProvider=e.references.NameProvider,this.index=e.shared.workspace.IndexManager,this.nodeLocator=e.workspace.AstNodeLocator}findDeclaration(e){if(e){let r=tR(e),n=e.astNode;if(r&&n){let i=n[r.feature];if(pa(i))return i.ref;if(Array.isArray(i)){for(let a of i)if(pa(a)&&a.$refNode&&a.$refNode.offset<=e.offset&&a.$refNode.end>=e.end)return a.ref}}if(n){let i=this.nameProvider.getNameNode(n);if(i&&(i===e||I9(e,i)))return n}}}findDeclarationNode(e){let r=this.findDeclaration(e);if(r?.$cstNode){let n=this.nameProvider.getNameNode(r);return n??r.$cstNode}}findReferences(e,r){let n=[];if(r.includeDeclaration){let a=this.getReferenceToSelf(e);a&&n.push(a)}let i=this.index.findAllReferences(e,this.nodeLocator.getAstNodePath(e));return 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ym,k2,u0,pT,xm,gT=F(()=>{ym=class{constructor(){this.toDispose=[],this.isDisposed=!1}onDispose(e){this.toDispose.push(e)}dispose(){this.throwIfDisposed(),this.clear(),this.isDisposed=!0,this.toDispose.forEach(e=>e.dispose())}throwIfDisposed(){if(this.isDisposed)throw new Error("This cache has already been disposed")}},k2=class extends ym{constructor(){super(...arguments),this.cache=new Map}has(e){return this.throwIfDisposed(),this.cache.has(e)}set(e,r){this.throwIfDisposed(),this.cache.set(e,r)}get(e,r){if(this.throwIfDisposed(),this.cache.has(e))return this.cache.get(e);if(r){let n=r();return this.cache.set(e,n),n}else return}delete(e){return this.throwIfDisposed(),this.cache.delete(e)}clear(){this.throwIfDisposed(),this.cache.clear()}},u0=class extends ym{constructor(e){super(),this.cache=new Map,this.converter=e??(r=>r)}has(e,r){return 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T2,PN=F(()=>{ON();Qa();Ls();gT();T2=class{constructor(e){this.reflection=e.shared.AstReflection,this.nameProvider=e.references.NameProvider,this.descriptions=e.workspace.AstNodeDescriptionProvider,this.indexManager=e.shared.workspace.IndexManager,this.globalScopeCache=new xm(e.shared)}getScope(e){let r=[],n=this.reflection.getReferenceType(e),i=_i(e.container).precomputedScopes;if(i){let s=e.container;do{let o=i.get(s);o.length>0&&r.push(Xr(o).filter(l=>this.reflection.isSubtype(l.type,n))),s=s.$container}while(s)}let a=this.getGlobalScope(n,e);for(let s=r.length-1;s>=0;s--)a=this.createScope(r[s],a);return a}createScope(e,r,n){return new vm(Xr(e),r,n)}createScopeForNodes(e,r,n){let i=Xr(e).map(a=>{let s=this.nameProvider.getName(a);if(s)return this.descriptions.createDescription(a,s)}).nonNullable();return new vm(i,r,n)}getGlobalScope(e,r){return this.globalScopeCache.get(e,()=>new w2(this.indexManager.allElements(e)))}}});function BN(t){return typeof t.$comment=="string"}function Ooe(t){return typeof t=="object"&&!!t&&("$ref"in t||"$error"in t)}var E2,mT=F(()=>{RN();$o();Qa();Al();E2=class{constructor(e){this.ignoreProperties=new Set(["$container","$containerProperty","$containerIndex","$document","$cstNode"]),this.langiumDocuments=e.shared.workspace.LangiumDocuments,this.astNodeLocator=e.workspace.AstNodeLocator,this.nameProvider=e.references.NameProvider,this.commentProvider=e.documentation.CommentProvider}serialize(e,r={}){let n=r?.replacer,i=(s,o)=>this.replacer(s,o,r),a=n?(s,o)=>n(s,o,i):i;try{return this.currentDocument=_i(e),JSON.stringify(e,a,r?.space)}finally{this.currentDocument=void 0}}deserialize(e,r={}){let n=JSON.parse(e);return this.linkNode(n,n,r),n}replacer(e,r,{refText:n,sourceText:i,textRegions:a,comments:s,uriConverter:o}){var l,u,h,f;if(!this.ignoreProperties.has(e))if(pa(r)){let d=r.ref,p=n?r.$refText:void 0;if(d){let g=_i(d),m="";this.currentDocument&&this.currentDocument!==g&&(o?m=o(g.uri,r):m=g.uri.toString());let y=this.astNodeLocator.getAstNodePath(d);return{$ref:`${m}#${y}`,$refText:p}}else return{$error:(u=(l=r.error)===null||l===void 0?void 0:l.message)!==null&&u!==void 0?u:"Could not resolve reference",$refText:p}}else if(Xn(r)){let d;if(a&&(d=this.addAstNodeRegionWithAssignmentsTo(Object.assign({},r)),(!e||r.$document)&&d?.$textRegion&&(d.$textRegion.documentURI=(h=this.currentDocument)===null||h===void 0?void 0:h.uri.toString())),i&&!e&&(d??(d=Object.assign({},r)),d.$sourceText=(f=r.$cstNode)===null||f===void 0?void 0:f.text),s){d??(d=Object.assign({},r));let p=this.commentProvider.getComment(r);p&&(d.$comment=p.replace(/\r/g,""))}return d??r}else return r}addAstNodeRegionWithAssignmentsTo(e){let r=n=>({offset:n.offset,end:n.end,length:n.length,range:n.range});if(e.$cstNode){let n=e.$textRegion=r(e.$cstNode),i=n.assignments={};return Object.keys(e).filter(a=>!a.startsWith("$")).forEach(a=>{let s=ZL(e.$cstNode,a).map(r);s.length!==0&&(i[a]=s)}),e}}linkNode(e,r,n,i,a,s){for(let[l,u]of Object.entries(e))if(Array.isArray(u))for(let h=0;h{Mc();S2=class{register(e){if(!this.singleton&&!this.map){this.singleton=e;return}if(!this.map&&(this.map={},this.singleton)){for(let r of this.singleton.LanguageMetaData.fileExtensions)this.map[r]=this.singleton;this.singleton=void 0}for(let r of e.LanguageMetaData.fileExtensions)this.map[r]!==void 0&&this.map[r]!==e&&console.warn(`The file extension ${r} is used by multiple languages. 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e.call(r,n,i,a)}catch(s){if(af(s))throw s;console.error("An error occurred during validation:",s);let o=s instanceof Error?s.message:String(s);s instanceof Error&&s.stack&&console.error(s.stack),i("error","An error occurred during validation: "+o,{node:n})}}}addEntry(e,r){if(e==="AstNode"){this.entries.add("AstNode",r);return}for(let n of this.reflection.getAllSubTypes(e))this.entries.add(n,r)}getChecks(e,r){let n=Xr(this.entries.get(e)).concat(this.entries.get("AstNode"));return r&&(n=n.filter(i=>r.includes(i.category))),n.map(i=>i.check)}}});function Poe(t){if(t.range)return t.range;let e;return typeof t.property=="string"?e=Py(t.node.$cstNode,t.property,t.index):typeof t.keyword=="string"&&(e=JL(t.node.$cstNode,t.keyword,t.index)),e??(e=t.node.$cstNode),e?e.range:{start:{line:0,character:0},end:{line:0,character:0}}}function yT(t){switch(t){case"error":return 1;case"warning":return 2;case"info":return 3;case"hint":return 4;default:throw new Error("Invalid diagnostic severity: "+t)}}var _2,Yu,zN=F(()=>{Wo();Al();Qa();El();Ho();A2();_2=class{constructor(e){this.validationRegistry=e.validation.ValidationRegistry,this.metadata=e.LanguageMetaData}async validateDocument(e,r={},n=mr.CancellationToken.None){let i=e.parseResult,a=[];if(await Ri(n),(!r.categories||r.categories.includes("built-in"))&&(this.processLexingErrors(i,a,r),r.stopAfterLexingErrors&&a.some(s=>{var o;return((o=s.data)===null||o===void 0?void 0:o.code)===Yu.LexingError})||(this.processParsingErrors(i,a,r),r.stopAfterParsingErrors&&a.some(s=>{var o;return((o=s.data)===null||o===void 0?void 0:o.code)===Yu.ParsingError}))||(this.processLinkingErrors(e,a,r),r.stopAfterLinkingErrors&&a.some(s=>{var o;return((o=s.data)===null||o===void 0?void 0:o.code)===Yu.LinkingError}))))return a;try{a.push(...await this.validateAst(i.value,r,n))}catch(s){if(af(s))throw s;console.error("An error occurred during validation:",s)}return await Ri(n),a}processLexingErrors(e,r,n){for(let i of e.lexerErrors){let a={severity:yT("error"),range:{start:{line:i.line-1,character:i.column-1},end:{line:i.line-1,character:i.column+i.length-1}},message:i.message,data:vT(Yu.LexingError),source:this.getSource()};r.push(a)}}processParsingErrors(e,r,n){for(let i of e.parserErrors){let a;if(isNaN(i.token.startOffset)){if("previousToken"in i){let s=i.previousToken;if(isNaN(s.startOffset)){let o={line:0,character:0};a={start:o,end:o}}else{let o={line:s.endLine-1,character:s.endColumn};a={start:o,end:o}}}}else a=Ig(i.token);if(a){let s={severity:yT("error"),range:a,message:i.message,data:vT(Yu.ParsingError),source:this.getSource()};r.push(s)}}}processLinkingErrors(e,r,n){for(let i of e.references){let a=i.error;if(a){let s={node:a.container,property:a.property,index:a.index,data:{code:Yu.LinkingError,containerType:a.container.$type,property:a.property,refText:a.reference.$refText}};r.push(this.toDiagnostic("error",a.message,s))}}}async validateAst(e,r,n=mr.CancellationToken.None){let i=[],a=(s,o,l)=>{i.push(this.toDiagnostic(s,o,l))};return await Promise.all(Vo(e).map(async s=>{await Ri(n);let o=this.validationRegistry.getChecks(s.$type,r.categories);for(let l of o)await l(s,a,n)})),i}toDiagnostic(e,r,n){return{message:r,range:Poe(n),severity:yT(e),code:n.code,codeDescription:n.codeDescription,tags:n.tags,relatedInformation:n.relatedInformation,data:n.data,source:this.getSource()}}getSource(){return this.metadata.languageId}};(function(t){t.LexingError="lexing-error",t.ParsingError="parsing-error",t.LinkingError="linking-error"})(Yu||(Yu={}))});var L2,R2,$N=F(()=>{Wo();$o();Qa();El();Ho();Mc();L2=class{constructor(e){this.astNodeLocator=e.workspace.AstNodeLocator,this.nameProvider=e.references.NameProvider}createDescription(e,r,n=_i(e)){r??(r=this.nameProvider.getName(e));let i=this.astNodeLocator.getAstNodePath(e);if(!r)throw new Error(`Node at path ${i} has no name.`);let a,s=()=>{var o;return a??(a=zd((o=this.nameProvider.getNameNode(e))!==null&&o!==void 0?o:e.$cstNode))};return{node:e,name:r,get nameSegment(){return s()},selectionSegment:zd(e.$cstNode),type:e.$type,documentUri:n.uri,path:i}}},R2=class{constructor(e){this.nodeLocator=e.workspace.AstNodeLocator}async createDescriptions(e,r=mr.CancellationToken.None){let n=[],i=e.parseResult.value;for(let a of Vo(i))await Ri(r),Dg(a).filter(s=>!Bd(s)).forEach(s=>{let o=this.createDescription(s);o&&n.push(o)});return n}createDescription(e){let r=e.reference.$nodeDescription,n=e.reference.$refNode;if(!r||!n)return;let i=_i(e.container).uri;return{sourceUri:i,sourcePath:this.nodeLocator.getAstNodePath(e.container),targetUri:r.documentUri,targetPath:r.path,segment:zd(n),local:is.equals(r.documentUri,i)}}}});var N2,GN=F(()=>{N2=class{constructor(){this.segmentSeparator="/",this.indexSeparator="@"}getAstNodePath(e){if(e.$container){let r=this.getAstNodePath(e.$container),n=this.getPathSegment(e);return r+this.segmentSeparator+n}return""}getPathSegment({$containerProperty:e,$containerIndex:r}){if(!e)throw new Error("Missing '$containerProperty' in AST node.");return r!==void 0?e+this.indexSeparator+r:e}getAstNode(e,r){return r.split(this.segmentSeparator).reduce((i,a)=>{if(!i||a.length===0)return i;let s=a.indexOf(this.indexSeparator);if(s>0){let o=a.substring(0,s),l=parseInt(a.substring(s+1)),u=i[o];return u?.[l]}return i[a]},e)}}});var I2,UN=F(()=>{Ho();I2=class{constructor(e){this._ready=new ns,this.settings={},this.workspaceConfig=!1,this.serviceRegistry=e.ServiceRegistry}get ready(){return this._ready.promise}initialize(e){var r,n;this.workspaceConfig=(n=(r=e.capabilities.workspace)===null||r===void 0?void 0:r.configuration)!==null&&n!==void 0?n:!1}async initialized(e){if(this.workspaceConfig){if(e.register){let r=this.serviceRegistry.all;e.register({section:r.map(n=>this.toSectionName(n.LanguageMetaData.languageId))})}if(e.fetchConfiguration){let r=this.serviceRegistry.all.map(i=>({section:this.toSectionName(i.LanguageMetaData.languageId)})),n=await e.fetchConfiguration(r);r.forEach((i,a)=>{this.updateSectionConfiguration(i.section,n[a])})}}this._ready.resolve()}updateConfiguration(e){e.settings&&Object.keys(e.settings).forEach(r=>{this.updateSectionConfiguration(r,e.settings[r])})}updateSectionConfiguration(e,r){this.settings[e]=r}async getConfiguration(e,r){await this.ready;let n=this.toSectionName(e);if(this.settings[n])return this.settings[n][r]}toSectionName(e){return`${e}`}}});var h0,VN=F(()=>{(function(t){function e(r){return{dispose:async()=>await r()}}t.create=e})(h0||(h0={}))});var M2,WN=F(()=>{Wo();VN();mm();Ho();Ls();A2();gm();M2=class{constructor(e){this.updateBuildOptions={validation:{categories:["built-in","fast"]}},this.updateListeners=[],this.buildPhaseListeners=new Dc,this.buildState=new Map,this.documentBuildWaiters=new Map,this.currentState=mn.Changed,this.langiumDocuments=e.workspace.LangiumDocuments,this.langiumDocumentFactory=e.workspace.LangiumDocumentFactory,this.indexManager=e.workspace.IndexManager,this.serviceRegistry=e.ServiceRegistry}async build(e,r={},n=mr.CancellationToken.None){var i,a;for(let s of e){let o=s.uri.toString();if(s.state===mn.Validated){if(typeof r.validation=="boolean"&&r.validation)s.state=mn.IndexedReferences,s.diagnostics=void 0,this.buildState.delete(o);else if(typeof r.validation=="object"){let l=this.buildState.get(o),u=(i=l?.result)===null||i===void 0?void 0:i.validationChecks;if(u){let f=((a=r.validation.categories)!==null&&a!==void 0?a:bm.all).filter(d=>!u.includes(d));f.length>0&&(this.buildState.set(o,{completed:!1,options:{validation:Object.assign(Object.assign({},r.validation),{categories:f})},result:l.result}),s.state=mn.IndexedReferences)}}}else this.buildState.delete(o)}this.currentState=mn.Changed,await this.emitUpdate(e.map(s=>s.uri),[]),await this.buildDocuments(e,r,n)}async update(e,r,n=mr.CancellationToken.None){this.currentState=mn.Changed;for(let s of r)this.langiumDocuments.deleteDocument(s),this.buildState.delete(s.toString()),this.indexManager.remove(s);for(let s of e){if(!this.langiumDocuments.invalidateDocument(s)){let l=this.langiumDocumentFactory.fromModel({$type:"INVALID"},s);l.state=mn.Changed,this.langiumDocuments.addDocument(l)}this.buildState.delete(s.toString())}let i=Xr(e).concat(r).map(s=>s.toString()).toSet();this.langiumDocuments.all.filter(s=>!i.has(s.uri.toString())&&this.shouldRelink(s,i)).forEach(s=>{this.serviceRegistry.getServices(s.uri).references.Linker.unlink(s),s.state=Math.min(s.state,mn.ComputedScopes),s.diagnostics=void 0}),await this.emitUpdate(e,r),await Ri(n);let a=this.langiumDocuments.all.filter(s=>{var o;return s.staten(e,r)))}shouldRelink(e,r){return e.references.some(n=>n.error!==void 0)?!0:this.indexManager.isAffected(e,r)}onUpdate(e){return this.updateListeners.push(e),h0.create(()=>{let r=this.updateListeners.indexOf(e);r>=0&&this.updateListeners.splice(r,1)})}async buildDocuments(e,r,n){this.prepareBuild(e,r),await this.runCancelable(e,mn.Parsed,n,a=>this.langiumDocumentFactory.update(a,n)),await this.runCancelable(e,mn.IndexedContent,n,a=>this.indexManager.updateContent(a,n)),await this.runCancelable(e,mn.ComputedScopes,n,async a=>{let s=this.serviceRegistry.getServices(a.uri).references.ScopeComputation;a.precomputedScopes=await s.computeLocalScopes(a,n)}),await this.runCancelable(e,mn.Linked,n,a=>this.serviceRegistry.getServices(a.uri).references.Linker.link(a,n)),await this.runCancelable(e,mn.IndexedReferences,n,a=>this.indexManager.updateReferences(a,n));let i=e.filter(a=>this.shouldValidate(a));await this.runCancelable(i,mn.Validated,n,a=>this.validate(a,n));for(let a of e){let s=this.buildState.get(a.uri.toString());s&&(s.completed=!0)}}prepareBuild(e,r){for(let n of e){let 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You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true). `+this.showPosition(),{text:"",token:null,line:this.yylineno});return this},"reject"),less:v(function(A){this.unput(this.match.slice(A))},"less"),pastInput:v(function(){var A=this.matched.substr(0,this.matched.length-this.match.length);return(A.length>20?"...":"")+A.substr(-20).replace(/\n/g,"")},"pastInput"),upcomingInput:v(function(){var A=this.match;return A.length<20&&(A+=this._input.substr(0,20-A.length)),(A.substr(0,20)+(A.length>20?"...":"")).replace(/\n/g,"")},"upcomingInput"),showPosition:v(function(){var A=this.pastInput(),D=new Array(A.length+1).join("-");return A+this.upcomingInput()+` `+D+"^"},"showPosition"),test_match:v(function(A,D){var N,O,B;if(this.options.backtrack_lexer&&(B={yylineno:this.yylineno,yylloc:{first_line:this.yylloc.first_line,last_line:this.last_line,first_column:this.yylloc.first_column,last_column:this.yylloc.last_column},yytext:this.yytext,match:this.match,matches:this.matches,matched:this.matched,yyleng:this.yyleng,offset:this.offset,_more:this._more,_input:this._input,yy:this.yy,conditionStack:this.conditionStack.slice(0),done:this.done},this.options.ranges&&(B.yylloc.range=this.yylloc.range.slice(0))),O=A[0].match(/(?:\r\n?|\n).*/g),O&&(this.yylineno+=O.length),this.yylloc={first_line:this.yylloc.last_line,last_line:this.yylineno+1,first_column:this.yylloc.last_column,last_column:O?O[O.length-1].length-O[O.length-1].match(/\r?\n?/)[0].length:this.yylloc.last_column+A[0].length},this.yytext+=A[0],this.match+=A[0],this.matches=A,this.yyleng=this.yytext.length,this.options.ranges&&(this.yylloc.range=[this.offset,this.offset+=this.yyleng]),this._more=!1,this._backtrack=!1,this._input=this._input.slice(A[0].length),this.matched+=A[0],N=this.performAction.call(this,this.yy,this,D,this.conditionStack[this.conditionStack.length-1]),this.done&&this._input&&(this.done=!1),N)return N;if(this._backtrack){for(var P in B)this[P]=B[P];return!1}return!1},"test_match"),next:v(function(){if(this.done)return this.EOF;this._input||(this.done=!0);var A,D,N,O;this._more||(this.yytext="",this.match="");for(var B=this._currentRules(),P=0;PD[0].length)){if(D=N,O=P,this.options.backtrack_lexer){if(A=this.test_match(N,B[P]),A!==!1)return A;if(this._backtrack){D=!1;continue}else return!1}else if(!this.options.flex)break}return D?(A=this.test_match(D,B[O]),A!==!1?A:!1):this._input===""?this.EOF:this.parseError("Lexical error on line "+(this.yylineno+1)+`. Unrecognized text. `+this.showPosition(),{text:"",token:null,line:this.yylineno})},"next"),lex:v(function(){var D=this.next();return D||this.lex()},"lex"),begin:v(function(D){this.conditionStack.push(D)},"begin"),popState:v(function(){var D=this.conditionStack.length-1;return D>0?this.conditionStack.pop():this.conditionStack[0]},"popState"),_currentRules:v(function(){return this.conditionStack.length&&this.conditionStack[this.conditionStack.length-1]?this.conditions[this.conditionStack[this.conditionStack.length-1]].rules:this.conditions.INITIAL.rules},"_currentRules"),topState:v(function(D){return D=this.conditionStack.length-1-Math.abs(D||0),D>=0?this.conditionStack[D]:"INITIAL"},"topState"),pushState:v(function(D){this.begin(D)},"pushState"),stateStackSize:v(function(){return this.conditionStack.length},"stateStackSize"),options:{"case-insensitive":!0},performAction:v(function(D,N,O,B){var P=B;switch(O){case 0:return this.begin("open_directive"),"open_directive";break;case 1:return this.begin("acc_title"),31;break;case 2:return this.popState(),"acc_title_value";break;case 3:return this.begin("acc_descr"),33;break;case 4:return this.popState(),"acc_descr_value";break;case 5:this.begin("acc_descr_multiline");break;case 6:this.popState();break;case 7:return"acc_descr_multiline_value";case 8:break;case 9:break;case 10:break;case 11:return 10;case 12:break;case 13:break;case 14:this.begin("href");break;case 15:this.popState();break;case 16:return 43;case 17:this.begin("callbackname");break;case 18:this.popState();break;case 19:this.popState(),this.begin("callbackargs");break;case 20:return 41;case 21:this.popState();break;case 22:return 42;case 23:this.begin("click");break;case 24:this.popState();break;case 25:return 40;case 26:return 4;case 27:return 22;case 28:return 23;case 29:return 24;case 30:return 25;case 31:return 26;case 32:return 28;case 33:return 27;case 34:return 29;case 35:return 12;case 36:return 13;case 37:return 14;case 38:return 15;case 39:return 16;case 40:return 17;case 41:return 18;case 42:return 20;case 43:return 21;case 44:return"date";case 45:return 30;case 46:return"accDescription";case 47:return 36;case 48:return 38;case 49:return 39;case 50:return":";case 51:return 6;case 52:return"INVALID"}},"anonymous"),rules:[/^(?:%%\{)/i,/^(?:accTitle\s*:\s*)/i,/^(?:(?!\n||)*[^\n]*)/i,/^(?:accDescr\s*:\s*)/i,/^(?:(?!\n||)*[^\n]*)/i,/^(?:accDescr\s*\{\s*)/i,/^(?:[\}])/i,/^(?:[^\}]*)/i,/^(?:%%(?!\{)*[^\n]*)/i,/^(?:[^\}]%%*[^\n]*)/i,/^(?:%%*[^\n]*[\n]*)/i,/^(?:[\n]+)/i,/^(?:\s+)/i,/^(?:%[^\n]*)/i,/^(?:href[\s]+["])/i,/^(?:["])/i,/^(?:[^"]*)/i,/^(?:call[\s]+)/i,/^(?:\([\s]*\))/i,/^(?:\()/i,/^(?:[^(]*)/i,/^(?:\))/i,/^(?:[^)]*)/i,/^(?:click[\s]+)/i,/^(?:[\s\n])/i,/^(?:[^\s\n]*)/i,/^(?:gantt\b)/i,/^(?:dateFormat\s[^#\n;]+)/i,/^(?:inclusiveEndDates\b)/i,/^(?:topAxis\b)/i,/^(?:axisFormat\s[^#\n;]+)/i,/^(?:tickInterval\s[^#\n;]+)/i,/^(?:includes\s[^#\n;]+)/i,/^(?:excludes\s[^#\n;]+)/i,/^(?:todayMarker\s[^\n;]+)/i,/^(?:weekday\s+monday\b)/i,/^(?:weekday\s+tuesday\b)/i,/^(?:weekday\s+wednesday\b)/i,/^(?:weekday\s+thursday\b)/i,/^(?:weekday\s+friday\b)/i,/^(?:weekday\s+saturday\b)/i,/^(?:weekday\s+sunday\b)/i,/^(?:weekend\s+friday\b)/i,/^(?:weekend\s+saturday\b)/i,/^(?:\d\d\d\d-\d\d-\d\d\b)/i,/^(?:title\s[^\n]+)/i,/^(?:accDescription\s[^#\n;]+)/i,/^(?:section\s[^\n]+)/i,/^(?:[^:\n]+)/i,/^(?::[^#\n;]+)/i,/^(?::)/i,/^(?:$)/i,/^(?:.)/i],conditions:{acc_descr_multiline:{rules:[6,7],inclusive:!1},acc_descr:{rules:[4],inclusive:!1},acc_title:{rules:[2],inclusive:!1},callbackargs:{rules:[21,22],inclusive:!1},callbackname:{rules:[18,19,20],inclusive:!1},href:{rules:[15,16],inclusive:!1},click:{rules:[24,25],inclusive:!1},INITIAL:{rules:[0,1,3,5,8,9,10,11,12,13,14,17,23,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52],inclusive:!0}}};return I}();M.lexer=R;function T(){this.yy={}}return v(T,"Parser"),T.prototype=M,M.Parser=T,new T}();BI.parser=BI;fOe=BI;oo.default.extend(rce.default);oo.default.extend(nce.default);oo.default.extend(ice.default);Qle={friday:5,saturday:6},Bc="",GI="",UI=void 0,VI="",q2=[],Y2=[],WI=new Map,HI=[],zT=[],Em="",qI="",ace=["active","done","crit","milestone"],YI=[],X2=!1,XI=!1,jI="sunday",$T="saturday",FI=0,dOe=v(function(){HI=[],zT=[],Em="",YI=[],PT=0,$I=void 0,BT=void 0,Ii=[],Bc="",GI="",qI="",UI=void 0,VI="",q2=[],Y2=[],X2=!1,XI=!1,FI=0,WI=new Map,xr(),jI="sunday",$T="saturday"},"clear"),pOe=v(function(t){GI=t},"setAxisFormat"),gOe=v(function(){return GI},"getAxisFormat"),mOe=v(function(t){UI=t},"setTickInterval"),vOe=v(function(){return UI},"getTickInterval"),yOe=v(function(t){VI=t},"setTodayMarker"),xOe=v(function(){return VI},"getTodayMarker"),bOe=v(function(t){Bc=t},"setDateFormat"),wOe=v(function(){X2=!0},"enableInclusiveEndDates"),kOe=v(function(){return 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69:this.$=ge[Ce-1]+""+ge[Ce];break}},"anonymous"),table:[{18:e,26:1,27:2,28:r,55:n,56:i,57:a},{1:[3]},{18:e,26:8,27:2,28:r,55:n,56:i,57:a},{18:e,26:9,27:2,28:r,55:n,56:i,57:a},t(s,[2,33],{29:10}),t(o,[2,61]),t(o,[2,62]),t(o,[2,63]),{1:[2,30]},{1:[2,31]},t(l,u,{30:11,31:12,24:13,32:15,33:16,34:17,43:30,58:31,1:[2,32],4:h,5:f,10:d,12:p,13:g,14:m,18:y,25:x,35:b,37:w,39:_,41:k,42:E,48:L,50:S,51:C,52:M,53:R,54:T,60:I,61:A,63:D,64:N,65:O,66:B,67:P}),t(s,[2,34]),{27:45,55:n,56:i,57:a},t(l,[2,37]),t(l,u,{24:13,32:15,33:16,34:17,43:30,58:31,31:46,4:h,5:f,10:d,12:p,13:g,14:m,18:y,25:x,35:b,37:w,39:_,41:k,42:E,48:L,50:S,51:C,52:M,53:R,54:T,60:I,61:A,63:D,64:N,65:O,66:B,67:P}),t(l,[2,39]),t(l,[2,40]),t(l,[2,41]),{36:[1,47]},{38:[1,48]},{40:[1,49]},t(l,[2,45]),t(l,[2,46]),{18:[1,50]},{4:h,5:f,10:d,12:p,13:g,14:m,43:51,58:31,60:I,61:A,63:D,64:N,65:O,66:B,67:P},{4:h,5:f,10:d,12:p,13:g,14:m,43:52,58:31,60:I,61:A,63:D,64:N,65:O,66:B,67:P},{4:h,5:f,10:d,12:p,13:g,14:m,43:53,58:31,60:I,61:A,63:D,64:N,65:O,66:B,67:P},{4:h,5:f,10:d,12:p,13:g,14:m,43:54,58:31,60:I,61:A,63:D,64:N,65:O,66:B,67:P},{4:h,5:f,10:d,12:p,13:g,14:m,43:55,58:31,60:I,61:A,63:D,64:N,65:O,66:B,67:P},{4:h,5:f,10:d,12:p,13:g,14:m,43:56,58:31,60:I,61:A,63:D,64:N,65:O,66:B,67:P},{4:h,5:f,8:$,10:d,12:p,13:g,14:m,18:z,44:[1,57],47:[1,58],58:60,59:59,63:D,64:N,65:O,66:B,67:P},t(H,[2,64]),t(H,[2,66]),t(H,[2,67]),t(H,[2,70]),t(H,[2,71]),t(H,[2,72]),t(H,[2,73]),t(H,[2,74]),t(H,[2,75]),t(H,[2,76]),t(H,[2,77]),t(H,[2,78]),t(H,[2,79]),t(H,[2,80]),t(s,[2,35]),t(l,[2,38]),t(l,[2,42]),t(l,[2,43]),t(l,[2,44]),{3:64,4:J,5:X,6:oe,7:K,8:ee,9:Q,10:W,11:Y,12:Z,13:se,14:ce,15:ue,21:63},t(l,[2,53],{59:59,58:60,4:h,5:f,8:$,10:d,12:p,13:g,14:m,18:z,49:[1,77],63:D,64:N,65:O,66:B,67:P}),t(l,[2,56],{59:59,58:60,4:h,5:f,8:$,10:d,12:p,13:g,14:m,18:z,49:[1,78],63:D,64:N,65:O,66:B,67:P}),t(l,[2,57],{59:59,58:60,4:h,5:f,8:$,10:d,12:p,13:g,14:m,18:z,63:D,64:N,65:O,66:B,67:P}),t(l,[2,58],{59:59,58:60,4:h,5:f,8:$,10:d,12:p,13:g,14:m,18:z,63:D,64:N,65:O,66:B,67:P}),t(l,[2,59],{59:59,58:60,4:h,5:f,8:$,10:d,12:p,13:g,14:m,18:z,63:D,64:N,65:O,66:B,67:P}),t(l,[2,60],{59:59,58:60,4:h,5:f,8:$,10:d,12:p,13:g,14:m,18:z,63:D,64:N,65:O,66:B,67:P}),{45:[1,79]},{44:[1,80]},t(H,[2,65]),t(H,[2,81]),t(H,[2,82]),t(H,[2,83]),{3:82,4:J,5:X,6:oe,7:K,8:ee,9:Q,10:W,11:Y,12:Z,13:se,14:ce,15:ue,18:[1,81]},t(te,[2,23]),t(te,[2,1]),t(te,[2,2]),t(te,[2,3]),t(te,[2,4]),t(te,[2,5]),t(te,[2,6]),t(te,[2,7]),t(te,[2,8]),t(te,[2,9]),t(te,[2,10]),t(te,[2,11]),t(te,[2,12]),t(l,[2,52],{58:31,43:83,4:h,5:f,10:d,12:p,13:g,14:m,60:I,61:A,63:D,64:N,65:O,66:B,67:P}),t(l,[2,55],{58:31,43:84,4:h,5:f,10:d,12:p,13:g,14:m,60:I,61:A,63:D,64:N,65:O,66:B,67:P}),{46:[1,85]},{45:[1,86]},{4:Ne,5:ae,6:we,8:Ie,11:Ee,13:Oe,16:89,17:De,18:We,19:Re,20:Pe,22:88,23:87},t(te,[2,24]),t(l,[2,51],{59:59,58:60,4:h,5:f,8:$,10:d,12:p,13:g,14:m,18:z,63:D,64:N,65:O,66:B,67:P}),t(l,[2,54],{59:59,58:60,4:h,5:f,8:$,10:d,12:p,13:g,14:m,18:z,63:D,64:N,65:O,66:B,67:P}),t(l,[2,47],{22:88,16:89,23:100,4:Ne,5:ae,6:we,8:Ie,11:Ee,13:Oe,17:De,18:We,19:Re,20:Pe}),{46:[1,101]},t(l,[2,29],{10:xe}),t(q,[2,27],{16:103,4:Ne,5:ae,6:we,8:Ie,11:Ee,13:Oe,17:De,18:We,19:Re,20:Pe}),t(de,[2,25]),t(de,[2,13]),t(de,[2,14]),t(de,[2,15]),t(de,[2,16]),t(de,[2,17]),t(de,[2,18]),t(de,[2,19]),t(de,[2,20]),t(de,[2,21]),t(de,[2,22]),t(l,[2,49],{10:xe}),t(l,[2,48],{22:88,16:89,23:104,4:Ne,5:ae,6:we,8:Ie,11:Ee,13:Oe,17:De,18:We,19:Re,20:Pe}),{4:Ne,5:ae,6:we,8:Ie,11:Ee,13:Oe,16:89,17:De,18:We,19:Re,20:Pe,22:105},t(de,[2,26]),t(l,[2,50],{10:xe}),t(q,[2,28],{16:103,4:Ne,5:ae,6:we,8:Ie,11:Ee,13:Oe,17:De,18:We,19:Re,20:Pe})],defaultActions:{8:[2,30],9:[2,31]},parseError:v(function(j,ye){if(ye.recoverable)this.trace(j);else{var Ae=new Error(j);throw Ae.hash=ye,Ae}},"parseError"),parse:v(function(j){var ye=this,Ae=[0],Ge=[],Fe=[null],ge=[],$e=this.table,Ce="",qe=0,lt=0,xt=0,ft=2,Ze=1,st=ge.slice.call(arguments,1),Ue=Object.create(this.lexer),Ke={yy:{}};for(var it in this.yy)Object.prototype.hasOwnProperty.call(this.yy,it)&&(Ke.yy[it]=this.yy[it]);Ue.setInput(j,Ke.yy),Ke.yy.lexer=Ue,Ke.yy.parser=this,typeof Ue.yylloc>"u"&&(Ue.yylloc={});var mt=Ue.yylloc;ge.push(mt);var Ht=Ue.options&&Ue.options.ranges;typeof Ke.yy.parseError=="function"?this.parseError=Ke.yy.parseError:this.parseError=Object.getPrototypeOf(this).parseError;function ot(Vr){Ae.length=Ae.length-2*Vr,Fe.length=Fe.length-Vr,ge.length=ge.length-Vr}v(ot,"popStack");function et(){var Vr;return Vr=Ge.pop()||Ue.lex()||Ze,typeof Vr!="number"&&(Vr instanceof Array&&(Ge=Vr,Vr=Ge.pop()),Vr=ye.symbols_[Vr]||Vr),Vr}v(et,"lex");for(var ht,bt,tt,_t,ur,Qt,Jt={},en,Cr,Kn,cn;;){if(tt=Ae[Ae.length-1],this.defaultActions[tt]?_t=this.defaultActions[tt]:((ht===null||typeof ht>"u")&&(ht=et()),_t=$e[tt]&&$e[tt][ht]),typeof _t>"u"||!_t.length||!_t[0]){var Rn="";cn=[];for(en in $e[tt])this.terminals_[en]&&en>ft&&cn.push("'"+this.terminals_[en]+"'");Ue.showPosition?Rn="Parse error on line "+(qe+1)+`: `+Ue.showPosition()+` Expecting `+cn.join(", ")+", got '"+(this.terminals_[ht]||ht)+"'":Rn="Parse error on line "+(qe+1)+": Unexpected "+(ht==Ze?"end of input":"'"+(this.terminals_[ht]||ht)+"'"),this.parseError(Rn,{text:Ue.match,token:this.terminals_[ht]||ht,line:Ue.yylineno,loc:mt,expected:cn})}if(_t[0]instanceof Array&&_t.length>1)throw new Error("Parse Error: multiple actions possible at state: "+tt+", token: "+ht);switch(_t[0]){case 1:Ae.push(ht),Fe.push(Ue.yytext),ge.push(Ue.yylloc),Ae.push(_t[1]),ht=null,bt?(ht=bt,bt=null):(lt=Ue.yyleng,Ce=Ue.yytext,qe=Ue.yylineno,mt=Ue.yylloc,xt>0&&xt--);break;case 2:if(Cr=this.productions_[_t[1]][1],Jt.$=Fe[Fe.length-Cr],Jt._$={first_line:ge[ge.length-(Cr||1)].first_line,last_line:ge[ge.length-1].last_line,first_column:ge[ge.length-(Cr||1)].first_column,last_column:ge[ge.length-1].last_column},Ht&&(Jt._$.range=[ge[ge.length-(Cr||1)].range[0],ge[ge.length-1].range[1]]),Qt=this.performAction.apply(Jt,[Ce,lt,qe,Ke.yy,_t[1],Fe,ge].concat(st)),typeof Qt<"u")return Qt;Cr&&(Ae=Ae.slice(0,-1*Cr*2),Fe=Fe.slice(0,-1*Cr),ge=ge.slice(0,-1*Cr)),Ae.push(this.productions_[_t[1]][0]),Fe.push(Jt.$),ge.push(Jt._$),Kn=$e[Ae[Ae.length-2]][Ae[Ae.length-1]],Ae.push(Kn);break;case 3:return!0}}return!0},"parse")},he=function(){var ke={EOF:1,parseError:v(function(ye,Ae){if(this.yy.parser)this.yy.parser.parseError(ye,Ae);else throw new Error(ye)},"parseError"),setInput:v(function(j,ye){return this.yy=ye||this.yy||{},this._input=j,this._more=this._backtrack=this.done=!1,this.yylineno=this.yyleng=0,this.yytext=this.matched=this.match="",this.conditionStack=["INITIAL"],this.yylloc={first_line:1,first_column:0,last_line:1,last_column:0},this.options.ranges&&(this.yylloc.range=[0,0]),this.offset=0,this},"setInput"),input:v(function(){var j=this._input[0];this.yytext+=j,this.yyleng++,this.offset++,this.match+=j,this.matched+=j;var ye=j.match(/(?:\r\n?|\n).*/g);return ye?(this.yylineno++,this.yylloc.last_line++):this.yylloc.last_column++,this.options.ranges&&this.yylloc.range[1]++,this._input=this._input.slice(1),j},"input"),unput:v(function(j){var ye=j.length,Ae=j.split(/(?:\r\n?|\n)/g);this._input=j+this._input,this.yytext=this.yytext.substr(0,this.yytext.length-ye),this.offset-=ye;var Ge=this.match.split(/(?:\r\n?|\n)/g);this.match=this.match.substr(0,this.match.length-1),this.matched=this.matched.substr(0,this.matched.length-1),Ae.length-1&&(this.yylineno-=Ae.length-1);var Fe=this.yylloc.range;return this.yylloc={first_line:this.yylloc.first_line,last_line:this.yylineno+1,first_column:this.yylloc.first_column,last_column:Ae?(Ae.length===Ge.length?this.yylloc.first_column:0)+Ge[Ge.length-Ae.length].length-Ae[0].length:this.yylloc.first_column-ye},this.options.ranges&&(this.yylloc.range=[Fe[0],Fe[0]+this.yyleng-ye]),this.yyleng=this.yytext.length,this},"unput"),more:v(function(){return this._more=!0,this},"more"),reject:v(function(){if(this.options.backtrack_lexer)this._backtrack=!0;else return this.parseError("Lexical error on line "+(this.yylineno+1)+`. You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true). `+this.showPosition(),{text:"",token:null,line:this.yylineno});return this},"reject"),less:v(function(j){this.unput(this.match.slice(j))},"less"),pastInput:v(function(){var j=this.matched.substr(0,this.matched.length-this.match.length);return(j.length>20?"...":"")+j.substr(-20).replace(/\n/g,"")},"pastInput"),upcomingInput:v(function(){var j=this.match;return j.length<20&&(j+=this._input.substr(0,20-j.length)),(j.substr(0,20)+(j.length>20?"...":"")).replace(/\n/g,"")},"upcomingInput"),showPosition:v(function(){var j=this.pastInput(),ye=new Array(j.length+1).join("-");return j+this.upcomingInput()+` `+ye+"^"},"showPosition"),test_match:v(function(j,ye){var Ae,Ge,Fe;if(this.options.backtrack_lexer&&(Fe={yylineno:this.yylineno,yylloc:{first_line:this.yylloc.first_line,last_line:this.last_line,first_column:this.yylloc.first_column,last_column:this.yylloc.last_column},yytext:this.yytext,match:this.match,matches:this.matches,matched:this.matched,yyleng:this.yyleng,offset:this.offset,_more:this._more,_input:this._input,yy:this.yy,conditionStack:this.conditionStack.slice(0),done:this.done},this.options.ranges&&(Fe.yylloc.range=this.yylloc.range.slice(0))),Ge=j[0].match(/(?:\r\n?|\n).*/g),Ge&&(this.yylineno+=Ge.length),this.yylloc={first_line:this.yylloc.last_line,last_line:this.yylineno+1,first_column:this.yylloc.last_column,last_column:Ge?Ge[Ge.length-1].length-Ge[Ge.length-1].match(/\r?\n?/)[0].length:this.yylloc.last_column+j[0].length},this.yytext+=j[0],this.match+=j[0],this.matches=j,this.yyleng=this.yytext.length,this.options.ranges&&(this.yylloc.range=[this.offset,this.offset+=this.yyleng]),this._more=!1,this._backtrack=!1,this._input=this._input.slice(j[0].length),this.matched+=j[0],Ae=this.performAction.call(this,this.yy,this,ye,this.conditionStack[this.conditionStack.length-1]),this.done&&this._input&&(this.done=!1),Ae)return Ae;if(this._backtrack){for(var ge in Fe)this[ge]=Fe[ge];return!1}return!1},"test_match"),next:v(function(){if(this.done)return this.EOF;this._input||(this.done=!0);var j,ye,Ae,Ge;this._more||(this.yytext="",this.match="");for(var Fe=this._currentRules(),ge=0;geye[0].length)){if(ye=Ae,Ge=ge,this.options.backtrack_lexer){if(j=this.test_match(Ae,Fe[ge]),j!==!1)return j;if(this._backtrack){ye=!1;continue}else return!1}else if(!this.options.flex)break}return ye?(j=this.test_match(ye,Fe[Ge]),j!==!1?j:!1):this._input===""?this.EOF:this.parseError("Lexical error on line "+(this.yylineno+1)+`. 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4:return this.begin("title"),35;break;case 5:return this.popState(),"title_value";break;case 6:return this.begin("acc_title"),37;break;case 7:return this.popState(),"acc_title_value";break;case 8:return this.begin("acc_descr"),39;break;case 9:return this.popState(),"acc_descr_value";break;case 10:this.begin("acc_descr_multiline");break;case 11:this.popState();break;case 12:return"acc_descr_multiline_value";case 13:return 48;case 14:return 50;case 15:return 49;case 16:return 51;case 17:return 52;case 18:return 53;case 19:return 54;case 20:return 25;case 21:this.begin("md_string");break;case 22:return"MD_STR";case 23:this.popState();break;case 24:this.begin("string");break;case 25:this.popState();break;case 26:return"STR";case 27:this.begin("class_name");break;case 28:return this.popState(),47;break;case 29:return this.begin("point_start"),44;break;case 30:return this.begin("point_x"),45;break;case 31:this.popState();break;case 32:this.popState(),this.begin("point_y");break;case 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n.remove(),r}},Fce=.7,zce=.2,Gce=class{constructor(t,e,r,n){this.axisConfig=t,this.title=e,this.textDimensionCalculator=r,this.axisThemeConfig=n,this.boundingRect={x:0,y:0,width:0,height:0},this.axisPosition="left",this.showTitle=!1,this.showLabel=!1,this.showTick=!1,this.showAxisLine=!1,this.outerPadding=0,this.titleTextHeight=0,this.labelTextHeight=0,this.range=[0,10],this.boundingRect={x:0,y:0,width:0,height:0},this.axisPosition="left"}static{v(this,"BaseAxis")}setRange(t){this.range=t,this.axisPosition==="left"||this.axisPosition==="right"?this.boundingRect.height=t[1]-t[0]:this.boundingRect.width=t[1]-t[0],this.recalculateScale()}getRange(){return[this.range[0]+this.outerPadding,this.range[1]-this.outerPadding]}setAxisPosition(t){this.axisPosition=t,this.setRange(this.range)}getTickDistance(){let t=this.getRange();return Math.abs(t[0]-t[1])/this.getTickValues().length}getAxisOuterPadding(){return this.outerPadding}getLabelDimension(){return 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r=this.textDimensionCalculator.getMaxDimension([this.title],this.axisConfig.titleFontSize),n=r.height+this.axisConfig.titlePadding*2;this.titleTextHeight=r.height,n<=e&&(e-=n,this.showTitle=!0)}this.boundingRect.width=t.width,this.boundingRect.height=t.height-e}calculateSpaceIfDrawnVertical(t){let e=t.width;if(this.axisConfig.showAxisLine&&e>this.axisConfig.axisLineWidth&&(e-=this.axisConfig.axisLineWidth,this.showAxisLine=!0),this.axisConfig.showLabel){let r=this.getLabelDimension(),n=zce*t.height;this.outerPadding=Math.min(r.height/2,n);let i=r.width+this.axisConfig.labelPadding*2;i<=e&&(e-=i,this.showLabel=!0)}if(this.axisConfig.showTick&&e>=this.axisConfig.tickLength&&(this.showTick=!0,e-=this.axisConfig.tickLength),this.axisConfig.showTitle&&this.title){let r=this.textDimensionCalculator.getMaxDimension([this.title],this.axisConfig.titleFontSize),n=r.height+this.axisConfig.titlePadding*2;this.titleTextHeight=r.height,n<=e&&(e-=n,this.showTitle=!0)}this.boundingRect.width=t.width-e,this.boundingRect.height=t.height}calculateSpace(t){return this.axisPosition==="left"||this.axisPosition==="right"?this.calculateSpaceIfDrawnVertical(t):this.calculateSpaceIfDrawnHorizontally(t),this.recalculateScale(),{width:this.boundingRect.width,height:this.boundingRect.height}}setBoundingBoxXY(t){this.boundingRect.x=t.x,this.boundingRect.y=t.y}getDrawableElementsForLeftAxis(){let t=[];if(this.showAxisLine){let e=this.boundingRect.x+this.boundingRect.width-this.axisConfig.axisLineWidth/2;t.push({type:"path",groupTexts:["left-axis","axisl-line"],data:[{path:`M ${e},${this.boundingRect.y} L ${e},${this.boundingRect.y+this.boundingRect.height} `,strokeFill:this.axisThemeConfig.axisLineColor,strokeWidth:this.axisConfig.axisLineWidth}]})}if(this.showLabel&&t.push({type:"text",groupTexts:["left-axis","label"],data:this.getTickValues().map(e=>({text:e.toString(),x:this.boundingRect.x+this.boundingRect.width-(this.showLabel?this.axisConfig.labelPadding:0)-(this.showTick?this.axisConfig.tickLength:0)-(this.showAxisLine?this.axisConfig.axisLineWidth:0),y:this.getScaleValue(e),fill:this.axisThemeConfig.labelColor,fontSize:this.axisConfig.labelFontSize,rotation:0,verticalPos:"middle",horizontalPos:"right"}))}),this.showTick){let e=this.boundingRect.x+this.boundingRect.width-(this.showAxisLine?this.axisConfig.axisLineWidth:0);t.push({type:"path",groupTexts:["left-axis","ticks"],data:this.getTickValues().map(r=>({path:`M ${e},${this.getScaleValue(r)} L ${e-this.axisConfig.tickLength},${this.getScaleValue(r)}`,strokeFill:this.axisThemeConfig.tickColor,strokeWidth:this.axisConfig.tickWidth}))})}return this.showTitle&&t.push({type:"text",groupTexts:["left-axis","title"],data:[{text:this.title,x:this.boundingRect.x+this.axisConfig.titlePadding,y:this.boundingRect.y+this.boundingRect.height/2,fill:this.axisThemeConfig.titleColor,fontSize:this.axisConfig.titleFontSize,rotation:270,verticalPos:"top",horizontalPos:"center"}]}),t}getDrawableElementsForBottomAxis(){let t=[];if(this.showAxisLine){let e=this.boundingRect.y+this.axisConfig.axisLineWidth/2;t.push({type:"path",groupTexts:["bottom-axis","axis-line"],data:[{path:`M ${this.boundingRect.x},${e} L ${this.boundingRect.x+this.boundingRect.width},${e}`,strokeFill:this.axisThemeConfig.axisLineColor,strokeWidth:this.axisConfig.axisLineWidth}]})}if(this.showLabel&&t.push({type:"text",groupTexts:["bottom-axis","label"],data:this.getTickValues().map(e=>({text:e.toString(),x:this.getScaleValue(e),y:this.boundingRect.y+this.axisConfig.labelPadding+(this.showTick?this.axisConfig.tickLength:0)+(this.showAxisLine?this.axisConfig.axisLineWidth:0),fill:this.axisThemeConfig.labelColor,fontSize:this.axisConfig.labelFontSize,rotation:0,verticalPos:"top",horizontalPos:"center"}))}),this.showTick){let e=this.boundingRect.y+(this.showAxisLine?this.axisConfig.axisLineWidth:0);t.push({type:"path",groupTexts:["bottom-axis","ticks"],data:this.getTickValues().map(r=>({path:`M ${this.getScaleValue(r)},${e} L ${this.getScaleValue(r)},${e+this.axisConfig.tickLength}`,strokeFill:this.axisThemeConfig.tickColor,strokeWidth:this.axisConfig.tickWidth}))})}return this.showTitle&&t.push({type:"text",groupTexts:["bottom-axis","title"],data:[{text:this.title,x:this.range[0]+(this.range[1]-this.range[0])/2,y:this.boundingRect.y+this.boundingRect.height-this.axisConfig.titlePadding-this.titleTextHeight,fill:this.axisThemeConfig.titleColor,fontSize:this.axisConfig.titleFontSize,rotation:0,verticalPos:"top",horizontalPos:"center"}]}),t}getDrawableElementsForTopAxis(){let t=[];if(this.showAxisLine){let e=this.boundingRect.y+this.boundingRect.height-this.axisConfig.axisLineWidth/2;t.push({type:"path",groupTexts:["top-axis","axis-line"],data:[{path:`M ${this.boundingRect.x},${e} L ${this.boundingRect.x+this.boundingRect.width},${e}`,strokeFill:this.axisThemeConfig.axisLineColor,strokeWidth:this.axisConfig.axisLineWidth}]})}if(this.showLabel&&t.push({type:"text",groupTexts:["top-axis","label"],data:this.getTickValues().map(e=>({text:e.toString(),x:this.getScaleValue(e),y:this.boundingRect.y+(this.showTitle?this.titleTextHeight+this.axisConfig.titlePadding*2:0)+this.axisConfig.labelPadding,fill:this.axisThemeConfig.labelColor,fontSize:this.axisConfig.labelFontSize,rotation:0,verticalPos:"top",horizontalPos:"center"}))}),this.showTick){let e=this.boundingRect.y;t.push({type:"path",groupTexts:["top-axis","ticks"],data:this.getTickValues().map(r=>({path:`M ${this.getScaleValue(r)},${e+this.boundingRect.height-(this.showAxisLine?this.axisConfig.axisLineWidth:0)} L 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this.showChartTitle&&t.push({groupTexts:["chart-title"],type:"text",data:[{fontSize:this.chartConfig.titleFontSize,text:this.chartData.title,verticalPos:"middle",horizontalPos:"center",x:this.boundingRect.x+this.boundingRect.width/2,y:this.boundingRect.y+this.boundingRect.height/2,fill:this.chartThemeConfig.titleColor,rotation:0}]}),t}};v(Uce,"getChartTitleComponent");PPe=class{constructor(t,e,r,n,i){this.plotData=t,this.xAxis=e,this.yAxis=r,this.orientation=n,this.plotIndex=i}static{v(this,"LinePlot")}getDrawableElement(){let t=this.plotData.data.map(r=>[this.xAxis.getScaleValue(r[0]),this.yAxis.getScaleValue(r[1])]),e;return this.orientation==="horizontal"?e=ms().y(r=>r[0]).x(r=>r[1])(t):e=ms().x(r=>r[0]).y(r=>r[1])(t),e?[{groupTexts:["plot",`line-plot-${this.plotIndex}`],type:"path",data:[{path:e,strokeFill:this.plotData.strokeFill,strokeWidth:this.plotData.strokeWidth}]}]:[]}},BPe=class{constructor(t,e,r,n,i,a){this.barData=t,this.boundingRect=e,this.xAxis=r,this.yAxis=n,this.orientation=i,this.plotIndex=a}static{v(this,"BarPlot")}getDrawableElement(){let t=this.barData.data.map(i=>[this.xAxis.getScaleValue(i[0]),this.yAxis.getScaleValue(i[1])]),r=Math.min(this.xAxis.getAxisOuterPadding()*2,this.xAxis.getTickDistance())*(1-.05),n=r/2;return this.orientation==="horizontal"?[{groupTexts:["plot",`bar-plot-${this.plotIndex}`],type:"rect",data:t.map(i=>({x:this.boundingRect.x,y:i[0]-n,height:r,width:i[1]-this.boundingRect.x,fill:this.barData.fill,strokeWidth:0,strokeFill:this.barData.fill}))}]:[{groupTexts:["plot",`bar-plot-${this.plotIndex}`],type:"rect",data:t.map(i=>({x:i[0]-n,y:i[1],width:r,height:this.boundingRect.y+this.boundingRect.height-i[1],fill:this.barData.fill,strokeWidth:0,strokeFill:this.barData.fill}))}]}},FPe=class{constructor(t,e,r){this.chartConfig=t,this.chartData=e,this.chartThemeConfig=r,this.boundingRect={x:0,y:0,width:0,height:0}}static{v(this,"BasePlot")}setAxes(t,e){this.xAxis=t,this.yAxis=e}setBoundingBoxXY(t){this.boundingRect.x=t.x,this.boundingRect.y=t.y}calculateSpace(t){return this.boundingRect.width=t.width,this.boundingRect.height=t.height,{width:this.boundingRect.width,height:this.boundingRect.height}}getDrawableElements(){if(!(this.xAxis&&this.yAxis))throw Error("Axes must be passed to render Plots");let t=[];for(let[e,r]of this.chartData.plots.entries())switch(r.type){case"line":{let n=new PPe(r,this.xAxis,this.yAxis,this.chartConfig.chartOrientation,e);t.push(...n.getDrawableElement())}break;case"bar":{let n=new BPe(r,this.boundingRect,this.xAxis,this.yAxis,this.chartConfig.chartOrientation,e);t.push(...n.getDrawableElement())}break}return t}};v(Vce,"getPlotComponent");zPe=class{constructor(t,e,r,n){this.chartConfig=t,this.chartData=e,this.componentStore={title:Uce(t,e,r,n),plot:Vce(t,e,r),xAxis:nM(e.xAxis,t.xAxis,{titleColor:r.xAxisTitleColor,labelColor:r.xAxisLabelColor,tickColor:r.xAxisTickColor,axisLineColor:r.xAxisLineColor},n),yAxis:nM(e.yAxis,t.yAxis,{titleColor:r.yAxisTitleColor,labelColor:r.yAxisLabelColor,tickColor:r.yAxisTickColor,axisLineColor:r.yAxisLineColor},n)}}static{v(this,"Orchestrator")}calculateVerticalSpace(){let t=this.chartConfig.width,e=this.chartConfig.height,r=0,n=0,i=Math.floor(t*this.chartConfig.plotReservedSpacePercent/100),a=Math.floor(e*this.chartConfig.plotReservedSpacePercent/100),s=this.componentStore.plot.calculateSpace({width:i,height:a});t-=s.width,e-=s.height,s=this.componentStore.title.calculateSpace({width:this.chartConfig.width,height:e}),n=s.height,e-=s.height,this.componentStore.xAxis.setAxisPosition("bottom"),s=this.componentStore.xAxis.calculateSpace({width:t,height:e}),e-=s.height,this.componentStore.yAxis.setAxisPosition("left"),s=this.componentStore.yAxis.calculateSpace({width:t,height:e}),r=s.width,t-=s.width,t>0&&(i+=t,t=0),e>0&&(a+=e,e=0),this.componentStore.plot.calculateSpace({width:i,height:a}),this.componentStore.plot.setBoundingBoxXY({x:r,y:n}),this.componentStore.xAxis.setRange([r,r+i]),this.componentStore.xAxis.setBoundingBoxXY({x:r,y:n+a}),this.componentStore.yAxis.setRange([n,n+a]),this.componentStore.yAxis.setBoundingBoxXY({x:0,y:n}),this.chartData.plots.some(o=>rM(o))&&this.componentStore.xAxis.recalculateOuterPaddingToDrawBar()}calculateHorizontalSpace(){let t=this.chartConfig.width,e=this.chartConfig.height,r=0,n=0,i=0,a=Math.floor(t*this.chartConfig.plotReservedSpacePercent/100),s=Math.floor(e*this.chartConfig.plotReservedSpacePercent/100),o=this.componentStore.plot.calculateSpace({width:a,height:s});t-=o.width,e-=o.height,o=this.componentStore.title.calculateSpace({width:this.chartConfig.width,height:e}),r=o.height,e-=o.height,this.componentStore.xAxis.setAxisPosition("left"),o=this.componentStore.xAxis.calculateSpace({width:t,height:e}),t-=o.width,n=o.width,this.componentStore.yAxis.setAxisPosition("top"),o=this.componentStore.yAxis.calculateSpace({width:t,height:e}),e-=o.height,i=r+o.height,t>0&&(a+=t,t=0),e>0&&(s+=e,e=0),this.componentStore.plot.calculateSpace({width:a,height:s}),this.componentStore.plot.setBoundingBoxXY({x:n,y:i}),this.componentStore.yAxis.setRange([n,n+a]),this.componentStore.yAxis.setBoundingBoxXY({x:n,y:r}),this.componentStore.xAxis.setRange([i,i+s]),this.componentStore.xAxis.setBoundingBoxXY({x:0,y:i}),this.chartData.plots.some(l=>rM(l))&&this.componentStore.xAxis.recalculateOuterPaddingToDrawBar()}calculateSpace(){this.chartConfig.chartOrientation==="horizontal"?this.calculateHorizontalSpace():this.calculateVerticalSpace()}getDrawableElement(){this.calculateSpace();let t=[];this.componentStore.plot.setAxes(this.componentStore.xAxis,this.componentStore.yAxis);for(let e of Object.values(this.componentStore))t.push(...e.getDrawableElements());return t}},$Pe=class{static{v(this,"XYChartBuilder")}static build(t,e,r,n){return new 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i=n.db,a=i.getChartThemeConfig(),s=i.getChartConfig();function o(y){return y==="top"?"text-before-edge":"middle"}v(o,"getDominantBaseLine");function l(y){return y==="left"?"start":y==="right"?"end":"middle"}v(l,"getTextAnchor");function u(y){return`translate(${y.x}, ${y.y}) rotate(${y.rotation||0})`}v(u,"getTextTransformation"),re.debug(`Rendering xychart chart `+t);let h=La(e),f=h.append("g").attr("class","main"),d=f.append("rect").attr("width",s.width).attr("height",s.height).attr("class","background");Hr(h,s.height,s.width,!0),h.attr("viewBox",`0 0 ${s.width} ${s.height}`),d.attr("fill",a.backgroundColor),i.setTmpSVGG(h.append("g").attr("class","mermaid-tmp-group"));let p=i.getDrawableElem(),g={};function m(y){let x=f,b="";for(let[w]of y.entries()){let _=f;w>0&&g[b]&&(_=g[b]),b+=y[w],x=g[b],x||(x=g[b]=_.append("g").attr("class",y[w]))}return x}v(m,"getGroup");for(let y of p){if(y.data.length===0)continue;let 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22:this.$={type:"activeStart",signalType:ce.LINETYPE.ACTIVE_START,actor:te[ae-1].actor};break;case 23:this.$={type:"activeEnd",signalType:ce.LINETYPE.ACTIVE_END,actor:te[ae-1].actor};break;case 29:ce.setDiagramTitle(te[ae].substring(6)),this.$=te[ae].substring(6);break;case 30:ce.setDiagramTitle(te[ae].substring(7)),this.$=te[ae].substring(7);break;case 31:this.$=te[ae].trim(),ce.setAccTitle(this.$);break;case 32:case 33:this.$=te[ae].trim(),ce.setAccDescription(this.$);break;case 34:te[ae-1].unshift({type:"loopStart",loopText:ce.parseMessage(te[ae-2]),signalType:ce.LINETYPE.LOOP_START}),te[ae-1].push({type:"loopEnd",loopText:te[ae-2],signalType:ce.LINETYPE.LOOP_END}),this.$=te[ae-1];break;case 35:te[ae-1].unshift({type:"rectStart",color:ce.parseMessage(te[ae-2]),signalType:ce.LINETYPE.RECT_START}),te[ae-1].push({type:"rectEnd",color:ce.parseMessage(te[ae-2]),signalType:ce.LINETYPE.RECT_END}),this.$=te[ae-1];break;case 36:te[ae-1].unshift({type:"optStart",optText:ce.parseMessage(te[ae-2]),signalType:ce.LINETYPE.OPT_START}),te[ae-1].push({type:"optEnd",optText:ce.parseMessage(te[ae-2]),signalType:ce.LINETYPE.OPT_END}),this.$=te[ae-1];break;case 37:te[ae-1].unshift({type:"altStart",altText:ce.parseMessage(te[ae-2]),signalType:ce.LINETYPE.ALT_START}),te[ae-1].push({type:"altEnd",signalType:ce.LINETYPE.ALT_END}),this.$=te[ae-1];break;case 38:te[ae-1].unshift({type:"parStart",parText:ce.parseMessage(te[ae-2]),signalType:ce.LINETYPE.PAR_START}),te[ae-1].push({type:"parEnd",signalType:ce.LINETYPE.PAR_END}),this.$=te[ae-1];break;case 39:te[ae-1].unshift({type:"parStart",parText:ce.parseMessage(te[ae-2]),signalType:ce.LINETYPE.PAR_OVER_START}),te[ae-1].push({type:"parEnd",signalType:ce.LINETYPE.PAR_END}),this.$=te[ae-1];break;case 40:te[ae-1].unshift({type:"criticalStart",criticalText:ce.parseMessage(te[ae-2]),signalType:ce.LINETYPE.CRITICAL_START}),te[ae-1].push({type:"criticalEnd",signalType:ce.LINETYPE.CRITICAL_END}),this.$=te[ae-1];break;case 41:te[ae-1].unshift({type:"breakStart",breakText:ce.parseMessage(te[ae-2]),signalType:ce.LINETYPE.BREAK_START}),te[ae-1].push({type:"breakEnd",optText:ce.parseMessage(te[ae-2]),signalType:ce.LINETYPE.BREAK_END}),this.$=te[ae-1];break;case 43:this.$=te[ae-3].concat([{type:"option",optionText:ce.parseMessage(te[ae-1]),signalType:ce.LINETYPE.CRITICAL_OPTION},te[ae]]);break;case 45:this.$=te[ae-3].concat([{type:"and",parText:ce.parseMessage(te[ae-1]),signalType:ce.LINETYPE.PAR_AND},te[ae]]);break;case 47:this.$=te[ae-3].concat([{type:"else",altText:ce.parseMessage(te[ae-1]),signalType:ce.LINETYPE.ALT_ELSE},te[ae]]);break;case 48:te[ae-3].draw="participant",te[ae-3].type="addParticipant",te[ae-3].description=ce.parseMessage(te[ae-1]),this.$=te[ae-3];break;case 49:te[ae-1].draw="participant",te[ae-1].type="addParticipant",this.$=te[ae-1];break;case 50:te[ae-3].draw="actor",te[ae-3].type="addParticipant",te[ae-3].description=ce.parseMessage(te[ae-1]),this.$=te[ae-3];break;case 51:te[ae-1].draw="actor",te[ae-1].type="addParticipant",this.$=te[ae-1];break;case 52:te[ae-1].type="destroyParticipant",this.$=te[ae-1];break;case 53:this.$=[te[ae-1],{type:"addNote",placement:te[ae-2],actor:te[ae-1].actor,text:te[ae]}];break;case 54:te[ae-2]=[].concat(te[ae-1],te[ae-1]).slice(0,2),te[ae-2][0]=te[ae-2][0].actor,te[ae-2][1]=te[ae-2][1].actor,this.$=[te[ae-1],{type:"addNote",placement:ce.PLACEMENT.OVER,actor:te[ae-2].slice(0,2),text:te[ae]}];break;case 55:this.$=[te[ae-1],{type:"addLinks",actor:te[ae-1].actor,text:te[ae]}];break;case 56:this.$=[te[ae-1],{type:"addALink",actor:te[ae-1].actor,text:te[ae]}];break;case 57:this.$=[te[ae-1],{type:"addProperties",actor:te[ae-1].actor,text:te[ae]}];break;case 58:this.$=[te[ae-1],{type:"addDetails",actor:te[ae-1].actor,text:te[ae]}];break;case 61:this.$=[te[ae-2],te[ae]];break;case 62:this.$=te[ae];break;case 63:this.$=ce.PLACEMENT.LEFTOF;break;case 64:this.$=ce.PLACEMENT.RIGHTOF;break;case 65:this.$=[te[ae-4],te[ae-1],{type:"addMessage",from:te[ae-4].actor,to:te[ae-1].actor,signalType:te[ae-3],msg:te[ae],activate:!0},{type:"activeStart",signalType:ce.LINETYPE.ACTIVE_START,actor:te[ae-1].actor}];break;case 66:this.$=[te[ae-4],te[ae-1],{type:"addMessage",from:te[ae-4].actor,to:te[ae-1].actor,signalType:te[ae-3],msg:te[ae]},{type:"activeEnd",signalType:ce.LINETYPE.ACTIVE_END,actor:te[ae-4].actor}];break;case 67:this.$=[te[ae-3],te[ae-1],{type:"addMessage",from:te[ae-3].actor,to:te[ae-1].actor,signalType:te[ae-2],msg:te[ae]}];break;case 68:this.$={type:"addParticipant",actor:te[ae]};break;case 69:this.$=ce.LINETYPE.SOLID_OPEN;break;case 70:this.$=ce.LINETYPE.DOTTED_OPEN;break;case 71:this.$=ce.LINETYPE.SOLID;break;case 72:this.$=ce.LINETYPE.BIDIRECTIONAL_SOLID;break;case 73:this.$=ce.LINETYPE.DOTTED;break;case 74:this.$=ce.LINETYPE.BIDIRECTIONAL_DOTTED;break;case 75:this.$=ce.LINETYPE.SOLID_CROSS;break;case 76:this.$=ce.LINETYPE.DOTTED_CROSS;break;case 77:this.$=ce.LINETYPE.SOLID_POINT;break;case 78:this.$=ce.LINETYPE.DOTTED_POINT;break;case 79:this.$=ce.parseMessage(te[ae].trim().substring(1));break}},"anonymous"),table:[{3:1,4:e,5:r,6:n},{1:[3]},{3:5,4:e,5:r,6:n},{3:6,4:e,5:r,6:n},t([1,4,5,13,14,18,21,23,29,30,31,33,35,36,37,38,39,41,43,44,46,50,52,53,54,59,60,61,62,70],i,{7:7}),{1:[2,1]},{1:[2,2]},{1:[2,3],4:a,5:s,8:8,9:10,12:12,13:o,14:l,17:15,18:u,21:h,22:40,23:f,24:19,25:20,26:21,27:22,28:23,29:d,30:p,31:g,33:m,35:y,36:x,37:b,38:w,39:_,41:k,43:E,44:L,46:S,50:C,52:M,53:R,54:T,59:I,60:A,61:D,62:N,70:O},t(B,[2,5]),{9:47,12:12,13:o,14:l,17:15,18:u,21:h,22:40,23:f,24:19,25:20,26:21,27:22,28:23,29:d,30:p,31:g,33:m,35:y,36:x,37:b,38:w,39:_,41:k,43:E,44:L,46:S,50:C,52:M,53:R,54:T,59:I,60:A,61:D,62:N,70:O},t(B,[2,7]),t(B,[2,8]),t(B,[2,14]),{12:48,50:C,52:M,53:R},{15:[1,49]},{5:[1,50]},{5:[1,53],19:[1,51],20:[1,52]},{22:54,70:O},{22:55,70:O},{5:[1,56]},{5:[1,57]},{5:[1,58]},{5:[1,59]},{5:[1,60]},t(B,[2,29]),t(B,[2,30]),{32:[1,61]},{34:[1,62]},t(B,[2,33]),{15:[1,63]},{15:[1,64]},{15:[1,65]},{15:[1,66]},{15:[1,67]},{15:[1,68]},{15:[1,69]},{15:[1,70]},{22:71,70:O},{22:72,70:O},{22:73,70:O},{67:74,71:[1,75],72:[1,76],73:[1,77],74:[1,78],75:[1,79],76:[1,80],77:[1,81],78:[1,82],79:[1,83],80:[1,84]},{55:85,57:[1,86],65:[1,87],66:[1,88]},{22:89,70:O},{22:90,70:O},{22:91,70:O},{22:92,70:O},t([5,51,64,71,72,73,74,75,76,77,78,79,80,81],[2,68]),t(B,[2,6]),t(B,[2,15]),t(P,[2,9],{10:93}),t(B,[2,17]),{5:[1,95],19:[1,94]},{5:[1,96]},t(B,[2,21]),{5:[1,97]},{5:[1,98]},t(B,[2,24]),t(B,[2,25]),t(B,[2,26]),t(B,[2,27]),t(B,[2,28]),t(B,[2,31]),t(B,[2,32]),t($,i,{7:99}),t($,i,{7:100}),t($,i,{7:101}),t(z,i,{40:102,7:103}),t(H,i,{42:104,7:105}),t(H,i,{7:105,42:106}),t(J,i,{45:107,7:108}),t($,i,{7:109}),{5:[1,111],51:[1,110]},{5:[1,113],51:[1,112]},{5:[1,114]},{22:117,68:[1,115],69:[1,116],70:O},t(X,[2,69]),t(X,[2,70]),t(X,[2,71]),t(X,[2,72]),t(X,[2,73]),t(X,[2,74]),t(X,[2,75]),t(X,[2,76]),t(X,[2,77]),t(X,[2,78]),{22:118,70:O},{22:120,58:119,70:O},{70:[2,63]},{70:[2,64]},{56:121,81:oe},{56:123,81:oe},{56:124,81:oe},{56:125,81:oe},{4:[1,128],5:[1,130],11:127,12:129,16:[1,126],50:C,52:M,53:R},{5:[1,131]},t(B,[2,19]),t(B,[2,20]),t(B,[2,22]),t(B,[2,23]),{4:a,5:s,8:8,9:10,12:12,13:o,14:l,16:[1,132],17:15,18:u,21:h,22:40,23:f,24:19,25:20,26:21,27:22,28:23,29:d,30:p,31:g,33:m,35:y,36:x,37:b,38:w,39:_,41:k,43:E,44:L,46:S,50:C,52:M,53:R,54:T,59:I,60:A,61:D,62:N,70:O},{4:a,5:s,8:8,9:10,12:12,13:o,14:l,16:[1,133],17:15,18:u,21:h,22:40,23:f,24:19,25:20,26:21,27:22,28:23,29:d,30:p,31:g,33:m,35:y,36:x,37:b,38:w,39:_,41:k,43:E,44:L,46:S,50:C,52:M,53:R,54:T,59:I,60:A,61:D,62:N,70:O},{4:a,5:s,8:8,9:10,12:12,13:o,14:l,16:[1,134],17:15,18:u,21:h,22:40,23:f,24:19,25:20,26:21,27:22,28:23,29:d,30:p,31:g,33:m,35:y,36:x,37:b,38:w,39:_,41:k,43:E,44:L,46:S,50:C,52:M,53:R,54:T,59:I,60:A,61:D,62:N,70:O},{16:[1,135]},{4:a,5:s,8:8,9:10,12:12,13:o,14:l,16:[2,46],17:15,18:u,21:h,22:40,23:f,24:19,25:20,26:21,27:22,28:23,29:d,30:p,31:g,33:m,35:y,36:x,37:b,38:w,39:_,41:k,43:E,44:L,46:S,49:[1,136],50:C,52:M,53:R,54:T,59:I,60:A,61:D,62:N,70:O},{16:[1,137]},{4:a,5:s,8:8,9:10,12:12,13:o,14:l,16:[2,44],17:15,18:u,21:h,22:40,23:f,24:19,25:20,26:21,27:22,28:23,29:d,30:p,31:g,33:m,35:y,36:x,37:b,38:w,39:_,41:k,43:E,44:L,46:S,48:[1,138],50:C,52:M,53:R,54:T,59:I,60:A,61:D,62:N,70:O},{16:[1,139]},{16:[1,140]},{4:a,5:s,8:8,9:10,12:12,13:o,14:l,16:[2,42],17:15,18:u,21:h,22:40,23:f,24:19,25:20,26:21,27:22,28:23,29:d,30:p,31:g,33:m,35:y,36:x,37:b,38:w,39:_,41:k,43:E,44:L,46:S,47:[1,141],50:C,52:M,53:R,54:T,59:I,60:A,61:D,62:N,70:O},{4:a,5:s,8:8,9:10,12:12,13:o,14:l,16:[1,142],17:15,18:u,21:h,22:40,23:f,24:19,25:20,26:21,27:22,28:23,29:d,30:p,31:g,33:m,35:y,36:x,37:b,38:w,39:_,41:k,43:E,44:L,46:S,50:C,52:M,53:R,54:T,59:I,60:A,61:D,62:N,70:O},{15:[1,143]},t(B,[2,49]),{15:[1,144]},t(B,[2,51]),t(B,[2,52]),{22:145,70:O},{22:146,70:O},{56:147,81:oe},{56:148,81:oe},{56:149,81:oe},{64:[1,150],81:[2,62]},{5:[2,55]},{5:[2,79]},{5:[2,56]},{5:[2,57]},{5:[2,58]},t(B,[2,16]),t(P,[2,10]),{12:151,50:C,52:M,53:R},t(P,[2,12]),t(P,[2,13]),t(B,[2,18]),t(B,[2,34]),t(B,[2,35]),t(B,[2,36]),t(B,[2,37]),{15:[1,152]},t(B,[2,38]),{15:[1,153]},t(B,[2,39]),t(B,[2,40]),{15:[1,154]},t(B,[2,41]),{5:[1,155]},{5:[1,156]},{56:157,81:oe},{56:158,81:oe},{5:[2,67]},{5:[2,53]},{5:[2,54]},{22:159,70:O},t(P,[2,11]),t(z,i,{7:103,40:160}),t(H,i,{7:105,42:161}),t(J,i,{7:108,45:162}),t(B,[2,48]),t(B,[2,50]),{5:[2,65]},{5:[2,66]},{81:[2,61]},{16:[2,47]},{16:[2,45]},{16:[2,43]}],defaultActions:{5:[2,1],6:[2,2],87:[2,63],88:[2,64],121:[2,55],122:[2,79],123:[2,56],124:[2,57],125:[2,58],147:[2,67],148:[2,53],149:[2,54],157:[2,65],158:[2,66],159:[2,61],160:[2,47],161:[2,45],162:[2,43]},parseError:v(function(Y,Z){if(Z.recoverable)this.trace(Y);else{var se=new Error(Y);throw se.hash=Z,se}},"parseError"),parse:v(function(Y){var Z=this,se=[0],ce=[],ue=[null],te=[],Ne=this.table,ae="",we=0,Ie=0,Ee=0,Oe=2,De=1,We=te.slice.call(arguments,1),Re=Object.create(this.lexer),Pe={yy:{}};for(var xe in this.yy)Object.prototype.hasOwnProperty.call(this.yy,xe)&&(Pe.yy[xe]=this.yy[xe]);Re.setInput(Y,Pe.yy),Pe.yy.lexer=Re,Pe.yy.parser=this,typeof Re.yylloc>"u"&&(Re.yylloc={});var q=Re.yylloc;te.push(q);var de=Re.options&&Re.options.ranges;typeof Pe.yy.parseError=="function"?this.parseError=Pe.yy.parseError:this.parseError=Object.getPrototypeOf(this).parseError;function ie(xt){se.length=se.length-2*xt,ue.length=ue.length-xt,te.length=te.length-xt}v(ie,"popStack");function he(){var xt;return xt=ce.pop()||Re.lex()||De,typeof xt!="number"&&(xt instanceof Array&&(ce=xt,xt=ce.pop()),xt=Z.symbols_[xt]||xt),xt}v(he,"lex");for(var U,ke,j,ye,Ae,Ge,Fe={},ge,$e,Ce,qe;;){if(j=se[se.length-1],this.defaultActions[j]?ye=this.defaultActions[j]:((U===null||typeof U>"u")&&(U=he()),ye=Ne[j]&&Ne[j][U]),typeof ye>"u"||!ye.length||!ye[0]){var lt="";qe=[];for(ge in Ne[j])this.terminals_[ge]&&ge>Oe&&qe.push("'"+this.terminals_[ge]+"'");Re.showPosition?lt="Parse error on line "+(we+1)+`: `+Re.showPosition()+` Expecting `+qe.join(", ")+", got '"+(this.terminals_[U]||U)+"'":lt="Parse error on line "+(we+1)+": Unexpected "+(U==De?"end of input":"'"+(this.terminals_[U]||U)+"'"),this.parseError(lt,{text:Re.match,token:this.terminals_[U]||U,line:Re.yylineno,loc:q,expected:qe})}if(ye[0]instanceof Array&&ye.length>1)throw new Error("Parse Error: multiple actions possible at state: "+j+", token: "+U);switch(ye[0]){case 1:se.push(U),ue.push(Re.yytext),te.push(Re.yylloc),se.push(ye[1]),U=null,ke?(U=ke,ke=null):(Ie=Re.yyleng,ae=Re.yytext,we=Re.yylineno,q=Re.yylloc,Ee>0&&Ee--);break;case 2:if($e=this.productions_[ye[1]][1],Fe.$=ue[ue.length-$e],Fe._$={first_line:te[te.length-($e||1)].first_line,last_line:te[te.length-1].last_line,first_column:te[te.length-($e||1)].first_column,last_column:te[te.length-1].last_column},de&&(Fe._$.range=[te[te.length-($e||1)].range[0],te[te.length-1].range[1]]),Ge=this.performAction.apply(Fe,[ae,Ie,we,Pe.yy,ye[1],ue,te].concat(We)),typeof Ge<"u")return Ge;$e&&(se=se.slice(0,-1*$e*2),ue=ue.slice(0,-1*$e),te=te.slice(0,-1*$e)),se.push(this.productions_[ye[1]][0]),ue.push(Fe.$),te.push(Fe._$),Ce=Ne[se[se.length-2]][se[se.length-1]],se.push(Ce);break;case 3:return!0}}return!0},"parse")},ee=function(){var W={EOF:1,parseError:v(function(Z,se){if(this.yy.parser)this.yy.parser.parseError(Z,se);else throw new Error(Z)},"parseError"),setInput:v(function(Y,Z){return this.yy=Z||this.yy||{},this._input=Y,this._more=this._backtrack=this.done=!1,this.yylineno=this.yyleng=0,this.yytext=this.matched=this.match="",this.conditionStack=["INITIAL"],this.yylloc={first_line:1,first_column:0,last_line:1,last_column:0},this.options.ranges&&(this.yylloc.range=[0,0]),this.offset=0,this},"setInput"),input:v(function(){var Y=this._input[0];this.yytext+=Y,this.yyleng++,this.offset++,this.match+=Y,this.matched+=Y;var Z=Y.match(/(?:\r\n?|\n).*/g);return Z?(this.yylineno++,this.yylloc.last_line++):this.yylloc.last_column++,this.options.ranges&&this.yylloc.range[1]++,this._input=this._input.slice(1),Y},"input"),unput:v(function(Y){var Z=Y.length,se=Y.split(/(?:\r\n?|\n)/g);this._input=Y+this._input,this.yytext=this.yytext.substr(0,this.yytext.length-Z),this.offset-=Z;var ce=this.match.split(/(?:\r\n?|\n)/g);this.match=this.match.substr(0,this.match.length-1),this.matched=this.matched.substr(0,this.matched.length-1),se.length-1&&(this.yylineno-=se.length-1);var ue=this.yylloc.range;return this.yylloc={first_line:this.yylloc.first_line,last_line:this.yylineno+1,first_column:this.yylloc.first_column,last_column:se?(se.length===ce.length?this.yylloc.first_column:0)+ce[ce.length-se.length].length-se[0].length:this.yylloc.first_column-Z},this.options.ranges&&(this.yylloc.range=[ue[0],ue[0]+this.yyleng-Z]),this.yyleng=this.yytext.length,this},"unput"),more:v(function(){return this._more=!0,this},"more"),reject:v(function(){if(this.options.backtrack_lexer)this._backtrack=!0;else return this.parseError("Lexical error on line "+(this.yylineno+1)+`. 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Unrecognized text. `+this.showPosition(),{text:"",token:null,line:this.yylineno})},"next"),lex:v(function(){var Z=this.next();return Z||this.lex()},"lex"),begin:v(function(Z){this.conditionStack.push(Z)},"begin"),popState:v(function(){var Z=this.conditionStack.length-1;return Z>0?this.conditionStack.pop():this.conditionStack[0]},"popState"),_currentRules:v(function(){return this.conditionStack.length&&this.conditionStack[this.conditionStack.length-1]?this.conditions[this.conditionStack[this.conditionStack.length-1]].rules:this.conditions.INITIAL.rules},"_currentRules"),topState:v(function(Z){return Z=this.conditionStack.length-1-Math.abs(Z||0),Z>=0?this.conditionStack[Z]:"INITIAL"},"topState"),pushState:v(function(Z){this.begin(Z)},"pushState"),stateStackSize:v(function(){return this.conditionStack.length},"stateStackSize"),options:{"case-insensitive":!0},performAction:v(function(Z,se,ce,ue){var te=ue;switch(ce){case 0:return 5;case 1:break;case 2:break;case 3:break;case 4:break;case 5:break;case 6:return 19;case 7:return this.begin("LINE"),14;break;case 8:return this.begin("ID"),50;break;case 9:return this.begin("ID"),52;break;case 10:return 13;case 11:return this.begin("ID"),53;break;case 12:return se.yytext=se.yytext.trim(),this.begin("ALIAS"),70;break;case 13:return this.popState(),this.popState(),this.begin("LINE"),51;break;case 14:return this.popState(),this.popState(),5;break;case 15:return this.begin("LINE"),36;break;case 16:return this.begin("LINE"),37;break;case 17:return this.begin("LINE"),38;break;case 18:return this.begin("LINE"),39;break;case 19:return this.begin("LINE"),49;break;case 20:return this.begin("LINE"),41;break;case 21:return this.begin("LINE"),43;break;case 22:return this.begin("LINE"),48;break;case 23:return this.begin("LINE"),44;break;case 24:return this.begin("LINE"),47;break;case 25:return this.begin("LINE"),46;break;case 26:return this.popState(),15;break;case 27:return 16;case 28:return 65;case 29:return 66;case 30:return 59;case 31:return 60;case 32:return 61;case 33:return 62;case 34:return 57;case 35:return 54;case 36:return this.begin("ID"),21;break;case 37:return this.begin("ID"),23;break;case 38:return 29;case 39:return 30;case 40:return this.begin("acc_title"),31;break;case 41:return this.popState(),"acc_title_value";break;case 42:return this.begin("acc_descr"),33;break;case 43:return this.popState(),"acc_descr_value";break;case 44:this.begin("acc_descr_multiline");break;case 45:this.popState();break;case 46:return"acc_descr_multiline_value";case 47:return 6;case 48:return 18;case 49:return 20;case 50:return 64;case 51:return 5;case 52:return se.yytext=se.yytext.trim(),70;break;case 53:return 73;case 54:return 74;case 55:return 75;case 56:return 76;case 57:return 71;case 58:return 72;case 59:return 77;case 60:return 78;case 61:return 79;case 62:return 80;case 63:return 81;case 64:return 68;case 65:return 69;case 66:return 5;case 67:return"INVALID"}},"anonymous"),rules:[/^(?:[\n]+)/i,/^(?:\s+)/i,/^(?:((?!\n)\s)+)/i,/^(?:#[^\n]*)/i,/^(?:%(?!\{)[^\n]*)/i,/^(?:[^\}]%%[^\n]*)/i,/^(?:[0-9]+(?=[ \n]+))/i,/^(?:box\b)/i,/^(?:participant\b)/i,/^(?:actor\b)/i,/^(?:create\b)/i,/^(?:destroy\b)/i,/^(?:[^\<->\->:\n,;]+?([\-]*[^\<->\->:\n,;]+?)*?(?=((?!\n)\s)+as(?!\n)\s|[#\n;]|$))/i,/^(?:as\b)/i,/^(?:(?:))/i,/^(?:loop\b)/i,/^(?:rect\b)/i,/^(?:opt\b)/i,/^(?:alt\b)/i,/^(?:else\b)/i,/^(?:par\b)/i,/^(?:par_over\b)/i,/^(?:and\b)/i,/^(?:critical\b)/i,/^(?:option\b)/i,/^(?:break\b)/i,/^(?:(?:[:]?(?:no)?wrap)?[^#\n;]*)/i,/^(?:end\b)/i,/^(?:left of\b)/i,/^(?:right of\b)/i,/^(?:links\b)/i,/^(?:link\b)/i,/^(?:properties\b)/i,/^(?:details\b)/i,/^(?:over\b)/i,/^(?:note\b)/i,/^(?:activate\b)/i,/^(?:deactivate\b)/i,/^(?:title\s[^#\n;]+)/i,/^(?:title:\s[^#\n;]+)/i,/^(?:accTitle\s*:\s*)/i,/^(?:(?!\n||)*[^\n]*)/i,/^(?:accDescr\s*:\s*)/i,/^(?:(?!\n||)*[^\n]*)/i,/^(?:accDescr\s*\{\s*)/i,/^(?:[\}])/i,/^(?:[^\}]*)/i,/^(?:sequenceDiagram\b)/i,/^(?:autonumber\b)/i,/^(?:off\b)/i,/^(?:,)/i,/^(?:;)/i,/^(?:[^\+\<->\->:\n,;]+((?!(-x|--x|-\)|--\)))[\-]*[^\+\<->\->:\n,;]+)*)/i,/^(?:->>)/i,/^(?:<<->>)/i,/^(?:-->>)/i,/^(?:<<-->>)/i,/^(?:->)/i,/^(?:-->)/i,/^(?:-[x])/i,/^(?:--[x])/i,/^(?:-[\)])/i,/^(?:--[\)])/i,/^(?::(?:(?:no)?wrap)?[^#\n;]+)/i,/^(?:\+)/i,/^(?:-)/i,/^(?:$)/i,/^(?:.)/i],conditions:{acc_descr_multiline:{rules:[45,46],inclusive:!1},acc_descr:{rules:[43],inclusive:!1},acc_title:{rules:[41],inclusive:!1},ID:{rules:[2,3,12],inclusive:!1},ALIAS:{rules:[2,3,13,14],inclusive:!1},LINE:{rules:[2,3,26],inclusive:!1},INITIAL:{rules:[0,1,3,4,5,6,7,8,9,10,11,15,16,17,18,19,20,21,22,23,24,25,27,28,29,30,31,32,33,34,35,36,37,38,39,40,42,44,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67],inclusive:!0}}};return W}();K.lexer=ee;function Q(){this.yy={}}return v(Q,"Parser"),Q.prototype=K,K.Parser=Q,new Q}();mM.parser=mM;TBe=mM,Dt=new Rg(()=>({prevActor:void 0,actors:new Map,createdActors:new Map,destroyedActors:new Map,boxes:[],messages:[],notes:[],sequenceNumbersEnabled:!1,wrapEnabled:void 0,currentBox:void 0,lastCreated:void 0,lastDestroyed:void 0})),EBe=v(function(t){Dt.records.boxes.push({name:t.text,wrap:t.wrap??y0(),fill:t.color,actorKeys:[]}),Dt.records.currentBox=Dt.records.boxes.slice(-1)[0]},"addBox"),vM=v(function(t,e,r,n){let i=Dt.records.currentBox,a=Dt.records.actors.get(t);if(a){if(Dt.records.currentBox&&a.box&&Dt.records.currentBox!==a.box)throw new Error(`A same participant should only be defined in one Box: ${a.name} can't be in '${a.box.name}' and in '${Dt.records.currentBox.name}' at the same 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Dt.records.boxes.some(t=>t.name)},"hasAtLeastOneBoxWithTitle"),LBe=v(function(){return Dt.records.messages},"getMessages"),RBe=v(function(){return Dt.records.boxes},"getBoxes"),NBe=v(function(){return Dt.records.actors},"getActors"),IBe=v(function(){return Dt.records.createdActors},"getCreatedActors"),MBe=v(function(){return Dt.records.destroyedActors},"getDestroyedActors"),tx=v(function(t){return Dt.records.actors.get(t)},"getActor"),DBe=v(function(){return[...Dt.records.actors.keys()]},"getActorKeys"),OBe=v(function(){Dt.records.sequenceNumbersEnabled=!0},"enableSequenceNumbers"),PBe=v(function(){Dt.records.sequenceNumbersEnabled=!1},"disableSequenceNumbers"),BBe=v(()=>Dt.records.sequenceNumbersEnabled,"showSequenceNumbers"),FBe=v(function(t){Dt.records.wrapEnabled=t},"setWrap"),gue=v(t=>{if(t===void 0)return{};t=t.trim();let e=/^:?wrap:/.exec(t)!==null?!0:/^:?nowrap:/.exec(t)!==null?!1:void 0;return{cleanedText:(e===void 0?t:t.replace(/^:?(?:no)?wrap:/,"")).trim(),wrap:e}},"extractWrap"),y0=v(()=>Dt.records.wrapEnabled!==void 0?Dt.records.wrapEnabled:pe().sequence?.wrap??!1,"autoWrap"),zBe=v(function(){Dt.reset(),xr()},"clear"),$Be=v(function(t){let e=t.trim(),{wrap:r,cleanedText:n}=gue(e),i={text:n,wrap:r};return re.debug(`parseMessage: ${JSON.stringify(i)}`),i},"parseMessage"),GBe=v(function(t){let e=/^((?:rgba?|hsla?)\s*\(.*\)|\w*)(.*)$/.exec(t),r=e?.[1]?e[1].trim():"transparent",n=e?.[2]?e[2].trim():void 0;if(window?.CSS)window.CSS.supports("color",r)||(r="transparent",n=t.trim());else{let s=new Option().style;s.color=r,s.color!==r&&(r="transparent",n=t.trim())}let{wrap:i,cleanedText:a}=gue(n);return{text:a?yr(a,pe()):void 0,color:r,wrap:i}},"parseBoxData"),ex={SOLID:0,DOTTED:1,NOTE:2,SOLID_CROSS:3,DOTTED_CROSS:4,SOLID_OPEN:5,DOTTED_OPEN:6,LOOP_START:10,LOOP_END:11,ALT_START:12,ALT_ELSE:13,ALT_END:14,OPT_START:15,OPT_END:16,ACTIVE_START:17,ACTIVE_END:18,PAR_START:19,PAR_AND:20,PAR_END:21,RECT_START:22,RECT_END:23,SOLID_POINT:24,DOTTED_POINT:25,AUTONUMBER:26,CRITICAL_START:27,CRITICAL_OPTION:28,CRITICAL_END:29,BREAK_START:30,BREAK_END:31,PAR_OVER_START:32,BIDIRECTIONAL_SOLID:33,BIDIRECTIONAL_DOTTED:34},UBe={FILLED:0,OPEN:1},VBe={LEFTOF:0,RIGHTOF:1,OVER:2},mue=v(function(t,e,r){let n={actor:t,placement:e,message:r.text,wrap:r.wrap??y0()},i=[].concat(t,t);Dt.records.notes.push(n),Dt.records.messages.push({from:i[0],to:i[1],message:r.text,wrap:r.wrap??y0(),type:ex.NOTE,placement:e})},"addNote"),vue=v(function(t,e){let r=tx(t);try{let n=yr(e.text,pe());n=n.replace(/&/g,"&"),n=n.replace(/=/g,"=");let i=JSON.parse(n);YT(r,i)}catch(n){re.error("error while parsing actor link 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Please check the sequence diagram.");Dt.records.lastCreated=void 0}else if(Dt.records.lastDestroyed){if(t.to!==Dt.records.lastDestroyed&&t.from!==Dt.records.lastDestroyed)throw new Error("The destroyed participant "+Dt.records.lastDestroyed.name+" does not have an associated destroying message after its declaration. 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0&&d.attr("text-anchor",e.anchor).attr("dominant-baseline",e.dominantBaseline).attr("alignment-baseline",e.alignmentBaseline),e.fontFamily!==void 0&&d.style("font-family",e.fontFamily),s!==void 0&&d.style("font-size",s),e.fontWeight!==void 0&&d.style("font-weight",e.fontWeight),e.fill!==void 0&&d.attr("fill",e.fill),e.class!==void 0&&d.attr("class",e.class),e.dy!==void 0?d.attr("dy",e.dy):l!==0&&d.attr("dy",l);let p=f||iA;if(e.tspan){let g=d.append("tspan");g.attr("x",e.x),e.fill!==void 0&&g.attr("fill",e.fill),g.text(p)}else d.text(p);e.valign!==void 0&&e.textMargin!==void 0&&e.textMargin>0&&(n+=(d._groups||d)[0][0].getBBox().height,r=n),o.push(d)}return o},"drawText"),Eue=v(function(t,e){function r(i,a,s,o,l){return i+","+a+" "+(i+s)+","+a+" "+(i+s)+","+(a+o-l)+" "+(i+s-l*1.2)+","+(a+o)+" "+i+","+(a+o)}v(r,"genPoints");let n=t.append("polygon");return n.attr("points",r(e.x,e.y,e.width,e.height,7)),n.attr("class","labelBox"),e.y=e.y+e.height/2,_m(t,e),n},"drawLabel"),zc=-1,Sue=v((t,e,r,n)=>{t.select&&r.forEach(i=>{let a=e.get(i),s=t.select("#actor"+a.actorCnt);!n.mirrorActors&&a.stopy?s.attr("y2",a.stopy+a.height/2):n.mirrorActors&&s.attr("y2",a.stopy)})},"fixLifeLineHeights"),ZBe=v(function(t,e,r,n){let i=n?e.stopy:e.starty,a=e.x+e.width/2,s=i+e.height,o=t.append("g").lower();var l=o;n||(zc++,Object.keys(e.links||{}).length&&!r.forceMenus&&l.attr("onclick",KBe(`actor${zc}_popup`)).attr("cursor","pointer"),l.append("line").attr("id","actor"+zc).attr("x1",a).attr("y1",s).attr("x2",a).attr("y2",2e3).attr("class","actor-line 200").attr("stroke-width","0.5px").attr("stroke","#999").attr("name",e.name),l=o.append("g"),e.actorCnt=zc,e.links!=null&&l.attr("id","root-"+zc));let u=Tc();var h="actor";e.properties?.class?h=e.properties.class:u.fill="#eaeaea",n?h+=` ${Tue}`:h+=` ${kue}`,u.x=e.x,u.y=i,u.width=e.width,u.height=e.height,u.class=h,u.rx=3,u.ry=3,u.name=e.name;let f=kM(l,u);if(e.rectData=u,e.properties?.icon){let p=e.properties.icon.trim();p.charAt(0)==="@"?rne(l,u.x+u.width-20,u.y+10,p.substr(1)):tne(l,u.x+u.width-20,u.y+10,p)}TM(r,Ei(e.description))(e.description,l,u.x,u.y,u.width,u.height,{class:`actor ${XBe}`},r);let d=e.height;if(f.node){let p=f.node().getBBox();e.height=p.height,d=p.height}return d},"drawActorTypeParticipant"),QBe=v(function(t,e,r,n){let i=n?e.stopy:e.starty,a=e.x+e.width/2,s=i+80,o=t.append("g").lower();n||(zc++,o.append("line").attr("id","actor"+zc).attr("x1",a).attr("y1",s).attr("x2",a).attr("y2",2e3).attr("class","actor-line 200").attr("stroke-width","0.5px").attr("stroke","#999").attr("name",e.name),e.actorCnt=zc);let l=t.append("g"),u=due;n?u+=` ${Tue}`:u+=` ${kue}`,l.attr("class",u),l.attr("name",e.name);let h=Tc();h.x=e.x,h.y=i,h.fill="#eaeaea",h.width=e.width,h.height=e.height,h.class="actor",h.rx=3,h.ry=3,l.append("line").attr("id","actor-man-torso"+zc).attr("x1",a).attr("y1",i+25).attr("x2",a).attr("y2",i+45),l.append("line").attr("id","actor-man-arms"+zc).attr("x1",a-v0/2).attr("y1",i+33).attr("x2",a+v0/2).attr("y2",i+33),l.append("line").attr("x1",a-v0/2).attr("y1",i+60).attr("x2",a).attr("y2",i+45),l.append("line").attr("x1",a).attr("y1",i+45).attr("x2",a+v0/2-2).attr("y2",i+60);let f=l.append("circle");f.attr("cx",e.x+e.width/2),f.attr("cy",i+10),f.attr("r",15),f.attr("width",e.width),f.attr("height",e.height);let d=l.node().getBBox();return e.height=d.height,TM(r,Ei(e.description))(e.description,l,h.x,h.y+35,h.width,h.height,{class:`actor ${due}`},r),e.height},"drawActorTypeActor"),JBe=v(async function(t,e,r,n){switch(e.type){case"actor":return await QBe(t,e,r,n);case"participant":return await ZBe(t,e,r,n)}},"drawActor"),eFe=v(function(t,e,r){let i=t.append("g");Cue(i,e),e.name&&TM(r)(e.name,i,e.x,e.y+(e.textMaxHeight||0)/2,e.width,0,{class:"text"},r),i.lower()},"drawBox"),tFe=v(function(t){return t.append("g")},"anchorElement"),rFe=v(function(t,e,r,n,i){let a=Tc(),s=e.anchored;a.x=e.startx,a.y=e.starty,a.class="activation"+i%3,a.width=e.stopx-e.startx,a.height=r-e.starty,kM(s,a)},"drawActivation"),nFe=v(async function(t,e,r,n){let{boxMargin:i,boxTextMargin:a,labelBoxHeight:s,labelBoxWidth:o,messageFontFamily:l,messageFontSize:u,messageFontWeight:h}=n,f=t.append("g"),d=v(function(m,y,x,b){return f.append("line").attr("x1",m).attr("y1",y).attr("x2",x).attr("y2",b).attr("class","loopLine")},"drawLoopLine");d(e.startx,e.starty,e.stopx,e.starty),d(e.stopx,e.starty,e.stopx,e.stopy),d(e.startx,e.stopy,e.stopx,e.stopy),d(e.startx,e.starty,e.startx,e.stopy),e.sections!==void 0&&e.sections.forEach(function(m){d(e.startx,m.y,e.stopx,m.y).style("stroke-dasharray","3, 3")});let 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n=t.append("g"),i=hi.drawRect(n,r),a=Lw();a.x=e.startx,a.y=e.starty,a.width=r.width,a.dy="1em",a.text=e.message,a.class="noteText",a.fontFamily=Le.noteFontFamily,a.fontSize=Le.noteFontSize,a.fontWeight=Le.noteFontWeight,a.anchor=Le.noteAlign,a.textMargin=Le.noteMargin,a.valign="center";let s=Ei(a.text)?await qT(n,a):_m(n,a),o=Math.round(s.map(l=>(l._groups||l)[0][0].getBBox().height).reduce((l,u)=>l+u));i.attr("height",o+2*Le.noteMargin),e.height+=o+2*Le.noteMargin,Qe.bumpVerticalPos(o+2*Le.noteMargin),e.stopy=e.starty+o+2*Le.noteMargin,e.stopx=e.startx+r.width,Qe.insert(e.startx,e.starty,e.stopx,e.stopy),Qe.models.addNote(e)},"drawNote"),x0=v(t=>({fontFamily:t.messageFontFamily,fontSize:t.messageFontSize,fontWeight:t.messageFontWeight}),"messageFont"),Am=v(t=>({fontFamily:t.noteFontFamily,fontSize:t.noteFontSize,fontWeight:t.noteFontWeight}),"noteFont"),yM=v(t=>({fontFamily:t.actorFontFamily,fontSize:t.actorFontSize,fontWeight:t.actorFontWeight}),"actorFont");v(_ue,"boundMessage");pFe=v(async function(t,e,r,n){let{startx:i,stopx:a,starty:s,message:o,type:l,sequenceIndex:u,sequenceVisible:h}=e,f=Ut.calculateTextDimensions(o,x0(Le)),d=Lw();d.x=i,d.y=s+10,d.width=a-i,d.class="messageText",d.dy="1em",d.text=o,d.fontFamily=Le.messageFontFamily,d.fontSize=Le.messageFontSize,d.fontWeight=Le.messageFontWeight,d.anchor=Le.messageAlign,d.valign="center",d.textMargin=Le.wrapPadding,d.tspan=!1,Ei(d.text)?await qT(t,d,{startx:i,stopx:a,starty:r}):_m(t,d);let p=f.width,g;i===a?Le.rightAngles?g=t.append("path").attr("d",`M ${i},${r} H ${i+Xe.getMax(Le.width/2,p/2)} V ${r+25} H ${i}`):g=t.append("path").attr("d","M "+i+","+r+" C "+(i+60)+","+(r-10)+" "+(i+60)+","+(r+30)+" "+i+","+(r+20)):(g=t.append("line"),g.attr("x1",i),g.attr("y1",r),g.attr("x2",a),g.attr("y2",r)),l===n.db.LINETYPE.DOTTED||l===n.db.LINETYPE.DOTTED_CROSS||l===n.db.LINETYPE.DOTTED_POINT||l===n.db.LINETYPE.DOTTED_OPEN||l===n.db.LINETYPE.BIDIRECTIONAL_DOTTED?(g.style("stroke-dasharray","3, 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m="";Le.arrowMarkerAbsolute&&(m=window.location.protocol+"//"+window.location.host+window.location.pathname+window.location.search,m=m.replace(/\(/g,"\\("),m=m.replace(/\)/g,"\\)")),g.attr("stroke-width",2),g.attr("stroke","none"),g.style("fill","none"),(l===n.db.LINETYPE.SOLID||l===n.db.LINETYPE.DOTTED)&&g.attr("marker-end","url("+m+"#arrowhead)"),(l===n.db.LINETYPE.BIDIRECTIONAL_SOLID||l===n.db.LINETYPE.BIDIRECTIONAL_DOTTED)&&(g.attr("marker-start","url("+m+"#arrowhead)"),g.attr("marker-end","url("+m+"#arrowhead)")),(l===n.db.LINETYPE.SOLID_POINT||l===n.db.LINETYPE.DOTTED_POINT)&&g.attr("marker-end","url("+m+"#filled-head)"),(l===n.db.LINETYPE.SOLID_CROSS||l===n.db.LINETYPE.DOTTED_CROSS)&&g.attr("marker-end","url("+m+"#crosshead)"),(h||Le.showSequenceNumbers)&&(g.attr("marker-start","url("+m+"#sequencenumber)"),t.append("text").attr("x",i).attr("y",r+4).attr("font-family","sans-serif").attr("font-size","12px").attr("text-anchor","middle").attr("class","sequenceNumber").text(u))},"drawMessage"),gFe=v(function(t,e,r,n,i,a,s){let o=0,l=0,u,h=0;for(let f of n){let d=e.get(f),p=d.box;u&&u!=p&&(s||Qe.models.addBox(u),l+=Le.boxMargin+u.margin),p&&p!=u&&(s||(p.x=o+l,p.y=i),l+=p.margin),d.width=d.width||Le.width,d.height=Xe.getMax(d.height||Le.height,Le.height),d.margin=d.margin||Le.actorMargin,h=Xe.getMax(h,d.height),r.get(d.name)&&(l+=d.width/2),d.x=o+l,d.starty=Qe.getVerticalPos(),Qe.insert(d.x,i,d.x+d.width,d.height),o+=d.width+l,d.box&&(d.box.width=o+p.margin-d.box.x),l=d.margin,u=d.box,Qe.models.addActor(d)}u&&!s&&Qe.models.addBox(u),Qe.bumpVerticalPos(h)},"addActorRenderingData"),xM=v(async function(t,e,r,n){if(n){let i=0;Qe.bumpVerticalPos(Le.boxMargin*2);for(let a of r){let s=e.get(a);s.stopy||(s.stopy=Qe.getVerticalPos());let o=await hi.drawActor(t,s,Le,!0);i=Xe.getMax(i,o)}Qe.bumpVerticalPos(i+Le.boxMargin)}else for(let i of r){let a=e.get(i);await hi.drawActor(t,a,Le,!1)}},"drawActors"),Lue=v(function(t,e,r,n){let i=0,a=0;for(let s of r){let o=e.get(s),l=vFe(o),u=hi.drawPopup(t,o,l,Le,Le.forceMenus,n);u.height>i&&(i=u.height),u.width+o.x>a&&(a=u.width+o.x)}return{maxHeight:i,maxWidth:a}},"drawActorsPopup"),Rue=v(function(t){Hn(Le,t),t.fontFamily&&(Le.actorFontFamily=Le.noteFontFamily=Le.messageFontFamily=t.fontFamily),t.fontSize&&(Le.actorFontSize=Le.noteFontSize=Le.messageFontSize=t.fontSize),t.fontWeight&&(Le.actorFontWeight=Le.noteFontWeight=Le.messageFontWeight=t.fontWeight)},"setConf"),XT=v(function(t){return Qe.activations.filter(function(e){return e.actor===t})},"actorActivations"),pue=v(function(t,e){let r=e.get(t),n=XT(t),i=n.reduce(function(s,o){return Xe.getMin(s,o.startx)},r.x+r.width/2-1),a=n.reduce(function(s,o){return Xe.getMax(s,o.stopx)},r.x+r.width/2+1);return[i,a]},"activationBounds");v(Il,"adjustLoopHeightForWrap");v(Nue,"adjustCreatedDestroyedData");mFe=v(async function(t,e,r,n){let{securityLevel:i,sequence:a}=pe();Le=a;let s;i==="sandbox"&&(s=Ve("#i"+e));let o=i==="sandbox"?Ve(s.nodes()[0].contentDocument.body):Ve("body"),l=i==="sandbox"?s.nodes()[0].contentDocument:document;Qe.init(),re.debug(n.db);let u=i==="sandbox"?o.select(`[id="${e}"]`):Ve(`[id="${e}"]`),h=n.db.getActors(),f=n.db.getCreatedActors(),d=n.db.getDestroyedActors(),p=n.db.getBoxes(),g=n.db.getActorKeys(),m=n.db.getMessages(),y=n.db.getDiagramTitle(),x=n.db.hasAtLeastOneBox(),b=n.db.hasAtLeastOneBoxWithTitle(),w=await Iue(h,m,n);if(Le.height=await Mue(h,w,p),hi.insertComputerIcon(u),hi.insertDatabaseIcon(u),hi.insertClockIcon(u),x&&(Qe.bumpVerticalPos(Le.boxMargin),b&&Qe.bumpVerticalPos(p[0].textMaxHeight)),Le.hideUnusedParticipants===!0){let B=new Set;m.forEach(P=>{B.add(P.from),B.add(P.to)}),g=g.filter(P=>B.has(P))}gFe(u,h,f,g,0,m,!1);let _=await bFe(m,h,w,n);hi.insertArrowHead(u),hi.insertArrowCrossHead(u),hi.insertArrowFilledHead(u),hi.insertSequenceNumber(u);function k(B,P){let $=Qe.endActivation(B);$.starty+18>P&&($.starty=P-6,P+=12),hi.drawActivation(u,$,P,Le,XT(B.from).length),Qe.insert($.startx,P-10,$.stopx,P)}v(k,"activeEnd");let E=1,L=1,S=[],C=[],M=0;for(let B of m){let P,$,z;switch(B.type){case n.db.LINETYPE.NOTE:Qe.resetVerticalPos(),$=B.noteModel,await dFe(u,$);break;case n.db.LINETYPE.ACTIVE_START:Qe.newActivation(B,u,h);break;case n.db.LINETYPE.ACTIVE_END:k(B,Qe.getVerticalPos());break;case n.db.LINETYPE.LOOP_START:Il(_,B,Le.boxMargin,Le.boxMargin+Le.boxTextMargin,H=>Qe.newLoop(H));break;case n.db.LINETYPE.LOOP_END:P=Qe.endLoop(),await hi.drawLoop(u,P,"loop",Le),Qe.bumpVerticalPos(P.stopy-Qe.getVerticalPos()),Qe.models.addLoop(P);break;case n.db.LINETYPE.RECT_START:Il(_,B,Le.boxMargin,Le.boxMargin,H=>Qe.newLoop(void 0,H.message));break;case n.db.LINETYPE.RECT_END:P=Qe.endLoop(),C.push(P),Qe.models.addLoop(P),Qe.bumpVerticalPos(P.stopy-Qe.getVerticalPos());break;case n.db.LINETYPE.OPT_START:Il(_,B,Le.boxMargin,Le.boxMargin+Le.boxTextMargin,H=>Qe.newLoop(H));break;case n.db.LINETYPE.OPT_END:P=Qe.endLoop(),await hi.drawLoop(u,P,"opt",Le),Qe.bumpVerticalPos(P.stopy-Qe.getVerticalPos()),Qe.models.addLoop(P);break;case n.db.LINETYPE.ALT_START:Il(_,B,Le.boxMargin,Le.boxMargin+Le.boxTextMargin,H=>Qe.newLoop(H));break;case n.db.LINETYPE.ALT_ELSE:Il(_,B,Le.boxMargin+Le.boxTextMargin,Le.boxMargin,H=>Qe.addSectionToLoop(H));break;case n.db.LINETYPE.ALT_END:P=Qe.endLoop(),await hi.drawLoop(u,P,"alt",Le),Qe.bumpVerticalPos(P.stopy-Qe.getVerticalPos()),Qe.models.addLoop(P);break;case n.db.LINETYPE.PAR_START:case n.db.LINETYPE.PAR_OVER_START:Il(_,B,Le.boxMargin,Le.boxMargin+Le.boxTextMargin,H=>Qe.newLoop(H)),Qe.saveVerticalPos();break;case n.db.LINETYPE.PAR_AND:Il(_,B,Le.boxMargin+Le.boxTextMargin,Le.boxMargin,H=>Qe.addSectionToLoop(H));break;case n.db.LINETYPE.PAR_END:P=Qe.endLoop(),await hi.drawLoop(u,P,"par",Le),Qe.bumpVerticalPos(P.stopy-Qe.getVerticalPos()),Qe.models.addLoop(P);break;case n.db.LINETYPE.AUTONUMBER:E=B.message.start||E,L=B.message.step||L,B.message.visible?n.db.enableSequenceNumbers():n.db.disableSequenceNumbers();break;case n.db.LINETYPE.CRITICAL_START:Il(_,B,Le.boxMargin,Le.boxMargin+Le.boxTextMargin,H=>Qe.newLoop(H));break;case n.db.LINETYPE.CRITICAL_OPTION:Il(_,B,Le.boxMargin+Le.boxTextMargin,Le.boxMargin,H=>Qe.addSectionToLoop(H));break;case n.db.LINETYPE.CRITICAL_END:P=Qe.endLoop(),await hi.drawLoop(u,P,"critical",Le),Qe.bumpVerticalPos(P.stopy-Qe.getVerticalPos()),Qe.models.addLoop(P);break;case n.db.LINETYPE.BREAK_START:Il(_,B,Le.boxMargin,Le.boxMargin+Le.boxTextMargin,H=>Qe.newLoop(H));break;case n.db.LINETYPE.BREAK_END:P=Qe.endLoop(),await hi.drawLoop(u,P,"break",Le),Qe.bumpVerticalPos(P.stopy-Qe.getVerticalPos()),Qe.models.addLoop(P);break;default:try{z=B.msgModel,z.starty=Qe.getVerticalPos(),z.sequenceIndex=E,z.sequenceVisible=n.db.showSequenceNumbers();let H=await _ue(u,z);Nue(B,z,H,M,h,f,d),S.push({messageModel:z,lineStartY:H}),Qe.models.addMessage(z)}catch(H){re.error("error while drawing message",H)}}[n.db.LINETYPE.SOLID_OPEN,n.db.LINETYPE.DOTTED_OPEN,n.db.LINETYPE.SOLID,n.db.LINETYPE.DOTTED,n.db.LINETYPE.SOLID_CROSS,n.db.LINETYPE.DOTTED_CROSS,n.db.LINETYPE.SOLID_POINT,n.db.LINETYPE.DOTTED_POINT,n.db.LINETYPE.BIDIRECTIONAL_SOLID,n.db.LINETYPE.BIDIRECTIONAL_DOTTED].includes(B.type)&&(E=E+L),M++}re.debug("createdActors",f),re.debug("destroyedActors",d),await xM(u,h,g,!1);for(let B of S)await pFe(u,B.messageModel,B.lineStartY,n);Le.mirrorActors&&await xM(u,h,g,!0),C.forEach(B=>hi.drawBackgroundRect(u,B)),Sue(u,h,g,Le);for(let B of 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this.yy=q||this.yy||{},this._input=xe,this._more=this._backtrack=this.done=!1,this.yylineno=this.yyleng=0,this.yytext=this.matched=this.match="",this.conditionStack=["INITIAL"],this.yylloc={first_line:1,first_column:0,last_line:1,last_column:0},this.options.ranges&&(this.yylloc.range=[0,0]),this.offset=0,this},"setInput"),input:v(function(){var xe=this._input[0];this.yytext+=xe,this.yyleng++,this.offset++,this.match+=xe,this.matched+=xe;var q=xe.match(/(?:\r\n?|\n).*/g);return q?(this.yylineno++,this.yylloc.last_line++):this.yylloc.last_column++,this.options.ranges&&this.yylloc.range[1]++,this._input=this._input.slice(1),xe},"input"),unput:v(function(xe){var q=xe.length,de=xe.split(/(?:\r\n?|\n)/g);this._input=xe+this._input,this.yytext=this.yytext.substr(0,this.yytext.length-q),this.offset-=q;var 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z=new Error(P);throw z.hash=$,z}},"parseError"),parse:v(function(P){var $=this,z=[0],H=[],J=[null],X=[],oe=this.table,K="",ee=0,Q=0,W=0,Y=2,Z=1,se=X.slice.call(arguments,1),ce=Object.create(this.lexer),ue={yy:{}};for(var te in this.yy)Object.prototype.hasOwnProperty.call(this.yy,te)&&(ue.yy[te]=this.yy[te]);ce.setInput(P,ue.yy),ue.yy.lexer=ce,ue.yy.parser=this,typeof ce.yylloc>"u"&&(ce.yylloc={});var Ne=ce.yylloc;X.push(Ne);var ae=ce.options&&ce.options.ranges;typeof ue.yy.parseError=="function"?this.parseError=ue.yy.parseError:this.parseError=Object.getPrototypeOf(this).parseError;function we(ke){z.length=z.length-2*ke,J.length=J.length-ke,X.length=X.length-ke}v(we,"popStack");function Ie(){var ke;return ke=H.pop()||ce.lex()||Z,typeof ke!="number"&&(ke instanceof Array&&(H=ke,ke=H.pop()),ke=$.symbols_[ke]||ke),ke}v(Ie,"lex");for(var Ee,Oe,De,We,Re,Pe,xe={},q,de,ie,he;;){if(De=z[z.length-1],this.defaultActions[De]?We=this.defaultActions[De]:((Ee===null||typeof Ee>"u")&&(Ee=Ie()),We=oe[De]&&oe[De][Ee]),typeof We>"u"||!We.length||!We[0]){var U="";he=[];for(q in oe[De])this.terminals_[q]&&q>Y&&he.push("'"+this.terminals_[q]+"'");ce.showPosition?U="Parse error on line "+(ee+1)+`: `+ce.showPosition()+` Expecting `+he.join(", ")+", got '"+(this.terminals_[Ee]||Ee)+"'":U="Parse error on line "+(ee+1)+": Unexpected "+(Ee==Z?"end of input":"'"+(this.terminals_[Ee]||Ee)+"'"),this.parseError(U,{text:ce.match,token:this.terminals_[Ee]||Ee,line:ce.yylineno,loc:Ne,expected:he})}if(We[0]instanceof Array&&We.length>1)throw new Error("Parse Error: multiple actions possible at state: "+De+", token: "+Ee);switch(We[0]){case 1:z.push(Ee),J.push(ce.yytext),X.push(ce.yylloc),z.push(We[1]),Ee=null,Oe?(Ee=Oe,Oe=null):(Q=ce.yyleng,K=ce.yytext,ee=ce.yylineno,Ne=ce.yylloc,W>0&&W--);break;case 2:if(de=this.productions_[We[1]][1],xe.$=J[J.length-de],xe._$={first_line:X[X.length-(de||1)].first_line,last_line:X[X.length-1].last_line,first_column:X[X.length-(de||1)].first_column,last_column:X[X.length-1].last_column},ae&&(xe._$.range=[X[X.length-(de||1)].range[0],X[X.length-1].range[1]]),Pe=this.performAction.apply(xe,[K,Q,ee,ue.yy,We[1],J,X].concat(se)),typeof Pe<"u")return Pe;de&&(z=z.slice(0,-1*de*2),J=J.slice(0,-1*de),X=X.slice(0,-1*de)),z.push(this.productions_[We[1]][0]),J.push(xe.$),X.push(xe._$),ie=oe[z[z.length-2]][z[z.length-1]],z.push(ie);break;case 3:return!0}}return!0},"parse")},N=function(){var B={EOF:1,parseError:v(function($,z){if(this.yy.parser)this.yy.parser.parseError($,z);else throw new Error($)},"parseError"),setInput:v(function(P,$){return this.yy=$||this.yy||{},this._input=P,this._more=this._backtrack=this.done=!1,this.yylineno=this.yyleng=0,this.yytext=this.matched=this.match="",this.conditionStack=["INITIAL"],this.yylloc={first_line:1,first_column:0,last_line:1,last_column:0},this.options.ranges&&(this.yylloc.range=[0,0]),this.offset=0,this},"setInput"),input:v(function(){var P=this._input[0];this.yytext+=P,this.yyleng++,this.offset++,this.match+=P,this.matched+=P;var $=P.match(/(?:\r\n?|\n).*/g);return $?(this.yylineno++,this.yylloc.last_line++):this.yylloc.last_column++,this.options.ranges&&this.yylloc.range[1]++,this._input=this._input.slice(1),P},"input"),unput:v(function(P){var $=P.length,z=P.split(/(?:\r\n?|\n)/g);this._input=P+this._input,this.yytext=this.yytext.substr(0,this.yytext.length-$),this.offset-=$;var H=this.match.split(/(?:\r\n?|\n)/g);this.match=this.match.substr(0,this.match.length-1),this.matched=this.matched.substr(0,this.matched.length-1),z.length-1&&(this.yylineno-=z.length-1);var J=this.yylloc.range;return this.yylloc={first_line:this.yylloc.first_line,last_line:this.yylineno+1,first_column:this.yylloc.first_column,last_column:z?(z.length===H.length?this.yylloc.first_column:0)+H[H.length-z.length].length-z[0].length:this.yylloc.first_column-$},this.options.ranges&&(this.yylloc.range=[J[0],J[0]+this.yyleng-$]),this.yyleng=this.yytext.length,this},"unput"),more:v(function(){return this._more=!0,this},"more"),reject:v(function(){if(this.options.backtrack_lexer)this._backtrack=!0;else return this.parseError("Lexical error on line "+(this.yylineno+1)+`. You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true). `+this.showPosition(),{text:"",token:null,line:this.yylineno});return this},"reject"),less:v(function(P){this.unput(this.match.slice(P))},"less"),pastInput:v(function(){var P=this.matched.substr(0,this.matched.length-this.match.length);return(P.length>20?"...":"")+P.substr(-20).replace(/\n/g,"")},"pastInput"),upcomingInput:v(function(){var P=this.match;return P.length<20&&(P+=this._input.substr(0,20-P.length)),(P.substr(0,20)+(P.length>20?"...":"")).replace(/\n/g,"")},"upcomingInput"),showPosition:v(function(){var P=this.pastInput(),$=new Array(P.length+1).join("-");return P+this.upcomingInput()+` `+$+"^"},"showPosition"),test_match:v(function(P,$){var z,H,J;if(this.options.backtrack_lexer&&(J={yylineno:this.yylineno,yylloc:{first_line:this.yylloc.first_line,last_line:this.last_line,first_column:this.yylloc.first_column,last_column:this.yylloc.last_column},yytext:this.yytext,match:this.match,matches:this.matches,matched:this.matched,yyleng:this.yyleng,offset:this.offset,_more:this._more,_input:this._input,yy:this.yy,conditionStack:this.conditionStack.slice(0),done:this.done},this.options.ranges&&(J.yylloc.range=this.yylloc.range.slice(0))),H=P[0].match(/(?:\r\n?|\n).*/g),H&&(this.yylineno+=H.length),this.yylloc={first_line:this.yylloc.last_line,last_line:this.yylineno+1,first_column:this.yylloc.last_column,last_column:H?H[H.length-1].length-H[H.length-1].match(/\r?\n?/)[0].length:this.yylloc.last_column+P[0].length},this.yytext+=P[0],this.match+=P[0],this.matches=P,this.yyleng=this.yytext.length,this.options.ranges&&(this.yylloc.range=[this.offset,this.offset+=this.yyleng]),this._more=!1,this._backtrack=!1,this._input=this._input.slice(P[0].length),this.matched+=P[0],z=this.performAction.call(this,this.yy,this,$,this.conditionStack[this.conditionStack.length-1]),this.done&&this._input&&(this.done=!1),z)return z;if(this._backtrack){for(var X in J)this[X]=J[X];return!1}return!1},"test_match"),next:v(function(){if(this.done)return this.EOF;this._input||(this.done=!0);var P,$,z,H;this._more||(this.yytext="",this.match="");for(var J=this._currentRules(),X=0;X$[0].length)){if($=z,H=X,this.options.backtrack_lexer){if(P=this.test_match(z,J[X]),P!==!1)return P;if(this._backtrack){$=!1;continue}else return!1}else if(!this.options.flex)break}return $?(P=this.test_match($,J[H]),P!==!1?P:!1):this._input===""?this.EOF:this.parseError("Lexical error on line "+(this.yylineno+1)+`. Unrecognized text. `+this.showPosition(),{text:"",token:null,line:this.yylineno})},"next"),lex:v(function(){var $=this.next();return $||this.lex()},"lex"),begin:v(function($){this.conditionStack.push($)},"begin"),popState:v(function(){var $=this.conditionStack.length-1;return $>0?this.conditionStack.pop():this.conditionStack[0]},"popState"),_currentRules:v(function(){return this.conditionStack.length&&this.conditionStack[this.conditionStack.length-1]?this.conditions[this.conditionStack[this.conditionStack.length-1]].rules:this.conditions.INITIAL.rules},"_currentRules"),topState:v(function($){return $=this.conditionStack.length-1-Math.abs($||0),$>=0?this.conditionStack[$]:"INITIAL"},"topState"),pushState:v(function($){this.begin($)},"pushState"),stateStackSize:v(function(){return this.conditionStack.length},"stateStackSize"),options:{"case-insensitive":!0},performAction:v(function($,z,H,J){var X=J;switch(H){case 0:return 41;case 1:return 48;case 2:return 49;case 3:return 50;case 4:return 51;case 5:break;case 6:break;case 7:return 5;case 8:break;case 9:break;case 10:break;case 11:break;case 12:return this.pushState("SCALE"),17;break;case 13:return 18;case 14:this.popState();break;case 15:return this.begin("acc_title"),33;break;case 16:return this.popState(),"acc_title_value";break;case 17:return this.begin("acc_descr"),35;break;case 18:return this.popState(),"acc_descr_value";break;case 19:this.begin("acc_descr_multiline");break;case 20:this.popState();break;case 21:return"acc_descr_multiline_value";case 22:return this.pushState("CLASSDEF"),38;break;case 23:return this.popState(),this.pushState("CLASSDEFID"),"DEFAULT_CLASSDEF_ID";break;case 24:return this.popState(),this.pushState("CLASSDEFID"),39;break;case 25:return this.popState(),40;break;case 26:return this.pushState("CLASS"),45;break;case 27:return this.popState(),this.pushState("CLASS_STYLE"),46;break;case 28:return this.popState(),47;break;case 29:return this.pushState("STYLE"),42;break;case 30:return this.popState(),this.pushState("STYLEDEF_STYLES"),43;break;case 31:return this.popState(),44;break;case 32:return this.pushState("SCALE"),17;break;case 33:return 18;case 34:this.popState();break;case 35:this.pushState("STATE");break;case 36:return this.popState(),z.yytext=z.yytext.slice(0,-8).trim(),25;break;case 37:return this.popState(),z.yytext=z.yytext.slice(0,-8).trim(),26;break;case 38:return this.popState(),z.yytext=z.yytext.slice(0,-10).trim(),27;break;case 39:return this.popState(),z.yytext=z.yytext.slice(0,-8).trim(),25;break;case 40:return this.popState(),z.yytext=z.yytext.slice(0,-8).trim(),26;break;case 41:return this.popState(),z.yytext=z.yytext.slice(0,-10).trim(),27;break;case 42:return 48;case 43:return 49;case 44:return 50;case 45:return 51;case 46:this.pushState("STATE_STRING");break;case 47:return this.pushState("STATE_ID"),"AS";break;case 48:return this.popState(),"ID";break;case 49:this.popState();break;case 50:return"STATE_DESCR";case 51:return 19;case 52:this.popState();break;case 53:return this.popState(),this.pushState("struct"),20;break;case 54:break;case 55:return this.popState(),21;break;case 56:break;case 57:return this.begin("NOTE"),29;break;case 58:return this.popState(),this.pushState("NOTE_ID"),56;break;case 59:return this.popState(),this.pushState("NOTE_ID"),57;break;case 60:this.popState(),this.pushState("FLOATING_NOTE");break;case 61:return this.popState(),this.pushState("FLOATING_NOTE_ID"),"AS";break;case 62:break;case 63:return"NOTE_TEXT";case 64:return this.popState(),"ID";break;case 65:return this.popState(),this.pushState("NOTE_TEXT"),24;break;case 66:return this.popState(),z.yytext=z.yytext.substr(2).trim(),31;break;case 67:return this.popState(),z.yytext=z.yytext.slice(0,-8).trim(),31;break;case 68:return 6;case 69:return 6;case 70:return 16;case 71:return 54;case 72:return 24;case 73:return z.yytext=z.yytext.trim(),14;break;case 74:return 15;case 75:return 28;case 76:return 55;case 77:return 5;case 78:return"INVALID"}},"anonymous"),rules:[/^(?:default\b)/i,/^(?:.*direction\s+TB[^\n]*)/i,/^(?:.*direction\s+BT[^\n]*)/i,/^(?:.*direction\s+RL[^\n]*)/i,/^(?:.*direction\s+LR[^\n]*)/i,/^(?:%%(?!\{)[^\n]*)/i,/^(?:[^\}]%%[^\n]*)/i,/^(?:[\n]+)/i,/^(?:[\s]+)/i,/^(?:((?!\n)\s)+)/i,/^(?:#[^\n]*)/i,/^(?:%[^\n]*)/i,/^(?:scale\s+)/i,/^(?:\d+)/i,/^(?:\s+width\b)/i,/^(?:accTitle\s*:\s*)/i,/^(?:(?!\n||)*[^\n]*)/i,/^(?:accDescr\s*:\s*)/i,/^(?:(?!\n||)*[^\n]*)/i,/^(?:accDescr\s*\{\s*)/i,/^(?:[\}])/i,/^(?:[^\}]*)/i,/^(?:classDef\s+)/i,/^(?:DEFAULT\s+)/i,/^(?:\w+\s+)/i,/^(?:[^\n]*)/i,/^(?:class\s+)/i,/^(?:(\w+)+((,\s*\w+)*))/i,/^(?:[^\n]*)/i,/^(?:style\s+)/i,/^(?:[\w,]+\s+)/i,/^(?:[^\n]*)/i,/^(?:scale\s+)/i,/^(?:\d+)/i,/^(?:\s+width\b)/i,/^(?:state\s+)/i,/^(?:.*<>)/i,/^(?:.*<>)/i,/^(?:.*<>)/i,/^(?:.*\[\[fork\]\])/i,/^(?:.*\[\[join\]\])/i,/^(?:.*\[\[choice\]\])/i,/^(?:.*direction\s+TB[^\n]*)/i,/^(?:.*direction\s+BT[^\n]*)/i,/^(?:.*direction\s+RL[^\n]*)/i,/^(?:.*direction\s+LR[^\n]*)/i,/^(?:["])/i,/^(?:\s*as\s+)/i,/^(?:[^\n\{]*)/i,/^(?:["])/i,/^(?:[^"]*)/i,/^(?:[^\n\s\{]+)/i,/^(?:\n)/i,/^(?:\{)/i,/^(?:%%(?!\{)[^\n]*)/i,/^(?:\})/i,/^(?:[\n])/i,/^(?:note\s+)/i,/^(?:left of\b)/i,/^(?:right of\b)/i,/^(?:")/i,/^(?:\s*as\s*)/i,/^(?:["])/i,/^(?:[^"]*)/i,/^(?:[^\n]*)/i,/^(?:\s*[^:\n\s\-]+)/i,/^(?:\s*:[^:\n;]+)/i,/^(?:[\s\S]*?end note\b)/i,/^(?:stateDiagram\s+)/i,/^(?:stateDiagram-v2\s+)/i,/^(?:hide empty 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i=n.eles.edges(),a=n.eles.nodes(),s=Fs(n.boundingBox?n.boundingBox:{x1:0,y1:0,w:e.width(),h:e.height()}),o={isCompound:e.hasCompoundNodes(),layoutNodes:[],idToIndex:{},nodeSize:a.size(),graphSet:[],indexToGraph:[],layoutEdges:[],edgeSize:i.size(),temperature:n.initialTemp,clientWidth:s.w,clientHeight:s.h,boundingBox:s},l=n.eles.components(),u={},h=0;h0){o.graphSet.push(S);for(var h=0;hi.count?0:i.graph},gYe=function t(e,r,n,i){var a=i.graphSet[n];if(-10)var f=i.nodeOverlap*h,d=Math.sqrt(o*o+l*l),p=f*o/d,g=f*l/d;else var m=W6(e,o,l),y=W6(r,-1*o,-1*l),x=y.x-m.x,b=y.y-m.y,w=x*x+b*b,d=Math.sqrt(w),f=(e.nodeRepulsion+r.nodeRepulsion)/w,p=f*x/d,g=f*b/d;e.isLocked||(e.offsetX-=p,e.offsetY-=g),r.isLocked||(r.offsetX+=p,r.offsetY+=g)}},kYe=function(e,r,n,i){if(n>0)var a=e.maxX-r.minX;else var a=r.maxX-e.minX;if(i>0)var s=e.maxY-r.minY;else var s=r.maxY-e.minY;return a>=0&&s>=0?Math.sqrt(a*a+s*s):0},W6=function(e,r,n){var 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if(d==null&&p!=null)u=p,l=Math.ceil(s/u);else if(u*l>s){var g=h(),m=f();(g-1)*m>=s?h(g-1):(m-1)*g>=s&&f(m-1)}else for(;u*l=s?f(x+1):h(y+1)}var b=a.w/u,w=a.h/l;if(e.condense&&(b=0,w=0),e.avoidOverlap)for(var _=0;_=u&&(D=0,A++)},O={},B=0;B(D=JUe(t,e,N[O],N[O+1],N[O+2],N[O+3])))return y(L,D),!0}else if(C.edgeType==="bezier"||C.edgeType==="multibezier"||C.edgeType==="self"||C.edgeType==="compound"){for(var N=C.allpts,O=0;O+5(D=QUe(t,e,N[O],N[O+1],N[O+2],N[O+3],N[O+4],N[O+5])))return y(L,D),!0}for(var B=B||S.source,P=P||S.target,$=i.getArrowWidth(M,R),z=[{name:"source",x:C.arrowStartX,y:C.arrowStartY,angle:C.srcArrowAngle},{name:"target",x:C.arrowEndX,y:C.arrowEndY,angle:C.tgtArrowAngle},{name:"mid-source",x:C.midX,y:C.midY,angle:C.midsrcArrowAngle},{name:"mid-target",x:C.midX,y:C.midY,angle:C.midtgtArrowAngle}],O=0;O0&&(x(B),x(P))}function w(L,S,C){return Bl(L,S,C)}function _(L,S){var C=L._private,M=d,R;S?R=S+"-":R="",L.boundingBox();var T=C.labelBounds[S||"main"],I=L.pstyle(R+"label").value,A=L.pstyle("text-events").strValue==="yes";if(!(!A||!I)){var D=w(C.rscratch,"labelX",S),N=w(C.rscratch,"labelY",S),O=w(C.rscratch,"labelAngle",S),B=L.pstyle(R+"text-margin-x").pfValue,P=L.pstyle(R+"text-margin-y").pfValue,$=T.x1-M-B,z=T.x2+M-B,H=T.y1-M-P,J=T.y2+M-P;if(O){var X=Math.cos(O),oe=Math.sin(O),K=function(ce,ue){return ce=ce-D,ue=ue-N,{x:ce*X-ue*oe+D,y:ce*oe+ue*X+N}},ee=K($,H),Q=K($,J),W=K(z,H),Y=K(z,J),Z=[ee.x+B,ee.y+P,W.x+B,W.y+P,Y.x+B,Y.y+P,Q.x+B,Q.y+P];if(Bs(t,e,Z))return y(L),!0}else if(jm(T,t,e))return y(L),!0}}for(var k=s.length-1;k>=0;k--){var E=s[k];E.isNode()?x(E)||_(E):b(E)||_(E)||_(E,"source")||_(E,"target")}return o};z0.getAllInBox=function(t,e,r,n){var i=this.getCachedZSortedEles().interactive,a=[],s=Math.min(t,r),o=Math.max(t,r),l=Math.min(e,n),u=Math.max(e,n);t=s,r=o,e=l,n=u;for(var h=Fs({x1:t,y1:e,x2:r,y2:n}),f=0;f0?-(Math.PI-e.ang):Math.PI+e.ang},OYe=function(e,r,n,i,a){if(e!==hde?fde(r,e,Gc):DYe(Ko,Gc),fde(r,n,Ko),cde=Gc.nx*Ko.ny-Gc.ny*Ko.nx,ude=Gc.nx*Ko.nx-Gc.ny*-Ko.ny,Zu=Math.asin(Math.max(-1,Math.min(1,cde))),Math.abs(Zu)<1e-6){xD=r.x,bD=r.y,L0=$m=0;return}R0=1,D6=!1,ude<0?Zu<0?Zu=Math.PI+Zu:(Zu=Math.PI-Zu,R0=-1,D6=!0):Zu>0&&(R0=-1,D6=!0),r.radius!==void 0?$m=r.radius:$m=i,S0=Zu/2,S6=Math.min(Gc.len/2,Ko.len/2),a?($c=Math.abs(Math.cos(S0)*$m/Math.sin(S0)),$c>S6?($c=S6,L0=Math.abs($c*Math.sin(S0)/Math.cos(S0))):L0=$m):($c=Math.min(S6,$m),L0=Math.abs($c*Math.sin(S0)/Math.cos(S0))),wD=r.x+Ko.nx*$c,kD=r.y+Ko.ny*$c,xD=wD-Ko.ny*L0*R0,bD=kD+Ko.nx*L0*R0,$0e=r.x+Gc.nx*$c,G0e=r.y+Gc.ny*$c,hde=r};Pa={};Pa.findMidptPtsEtc=function(t,e){var r=e.posPts,n=e.intersectionPts,i=e.vectorNormInverse,a,s=t.pstyle("source-endpoint"),o=t.pstyle("target-endpoint"),l=s.units!=null&&o.units!=null,u=function(k,E,L,S){var C=S-E,M=L-k,R=Math.sqrt(M*M+C*C);return{x:-C/R,y:M/R}},h=t.pstyle("edge-distances").value;switch(h){case"node-position":a=r;break;case"intersection":a=n;break;case"endpoints":{if(l){var f=this.manualEndptToPx(t.source()[0],s),d=Ol(f,2),p=d[0],g=d[1],m=this.manualEndptToPx(t.target()[0],o),y=Ol(m,2),x=y[0],b=y[1],w={x1:p,y1:g,x2:x,y2:b};i=u(p,g,x,b),a=w}else Jr("Edge ".concat(t.id()," has edge-distances:endpoints specified without manual endpoints specified via source-endpoint and target-endpoint. Falling back on edge-distances:intersection (default).")),a=n;break}}return{midptPts:a,vectorNormInverse:i}};Pa.findHaystackPoints=function(t){for(var e=0;e0?Math.max(j-ye,0):Math.min(j+ye,0)},I=T(M,S),A=T(R,C),D=!1;b===u?x=Math.abs(I)>Math.abs(A)?i:n:b===l||b===o?(x=n,D=!0):(b===a||b===s)&&(x=i,D=!0);var N=x===n,O=N?A:I,B=N?R:M,P=qde(B),$=!1;!(D&&(_||E))&&(b===o&&B<0||b===l&&B>0||b===a&&B>0||b===s&&B<0)&&(P*=-1,O=P*Math.abs(O),$=!0);var z;if(_){var H=k<0?1+k:k;z=H*O}else{var J=k<0?O:0;z=J+k*P}var X=function(j){return Math.abs(j)=Math.abs(O)},oe=X(z),K=X(Math.abs(O)-Math.abs(z)),ee=oe||K;if(ee&&!$)if(N){var Q=Math.abs(B)<=d/2,W=Math.abs(M)<=p/2;if(Q){var Y=(h.x1+h.x2)/2,Z=h.y1,se=h.y2;r.segpts=[Y,Z,Y,se]}else if(W){var ce=(h.y1+h.y2)/2,ue=h.x1,te=h.x2;r.segpts=[ue,ce,te,ce]}else r.segpts=[h.x1,h.y2]}else{var Ne=Math.abs(B)<=f/2,ae=Math.abs(R)<=g/2;if(Ne){var we=(h.y1+h.y2)/2,Ie=h.x1,Ee=h.x2;r.segpts=[Ie,we,Ee,we]}else if(ae){var Oe=(h.x1+h.x2)/2,De=h.y1,We=h.y2;r.segpts=[Oe,De,Oe,We]}else r.segpts=[h.x2,h.y1]}else if(N){var Re=h.y1+z+(y?d/2*P:0),Pe=h.x1,xe=h.x2;r.segpts=[Pe,Re,xe,Re]}else{var q=h.x1+z+(y?f/2*P:0),de=h.y1,ie=h.y2;r.segpts=[q,de,q,ie]}if(r.isRound){var he=t.pstyle("taxi-radius").value,U=t.pstyle("radius-type").value[0]==="arc-radius";r.radii=new Array(r.segpts.length/2).fill(he),r.isArcRadius=new Array(r.segpts.length/2).fill(U)}};Pa.tryToCorrectInvalidPoints=function(t,e){var r=t._private.rscratch;if(r.edgeType==="bezier"){var n=e.srcPos,i=e.tgtPos,a=e.srcW,s=e.srcH,o=e.tgtW,l=e.tgtH,u=e.srcShape,h=e.tgtShape,f=e.srcCornerRadius,d=e.tgtCornerRadius,p=e.srcRs,g=e.tgtRs,m=!dt(r.startX)||!dt(r.startY),y=!dt(r.arrowStartX)||!dt(r.arrowStartY),x=!dt(r.endX)||!dt(r.endY),b=!dt(r.arrowEndX)||!dt(r.arrowEndY),w=3,_=this.getArrowWidth(t.pstyle("width").pfValue,t.pstyle("arrow-scale").value)*this.arrowShapeWidth,k=w*_,E=D0({x:r.ctrlpts[0],y:r.ctrlpts[1]},{x:r.startX,y:r.startY}),L=EA.poolIndex()){var D=I;I=A,A=D}var N=C.srcPos=I.position(),O=C.tgtPos=A.position(),B=C.srcW=I.outerWidth(),P=C.srcH=I.outerHeight(),$=C.tgtW=A.outerWidth(),z=C.tgtH=A.outerHeight(),H=C.srcShape=r.nodeShapes[e.getNodeShape(I)],J=C.tgtShape=r.nodeShapes[e.getNodeShape(A)],X=C.srcCornerRadius=I.pstyle("corner-radius").value==="auto"?"auto":I.pstyle("corner-radius").pfValue,oe=C.tgtCornerRadius=A.pstyle("corner-radius").value==="auto"?"auto":A.pstyle("corner-radius").pfValue,K=C.tgtRs=A._private.rscratch,ee=C.srcRs=I._private.rscratch;C.dirCounts={north:0,west:0,south:0,east:0,northwest:0,southwest:0,northeast:0,southeast:0};for(var Q=0;Q0){var se=a,ce=A0(se,Um(r)),ue=A0(se,Um(Z)),te=ce;if(ue2){var Ne=A0(se,{x:Z[2],y:Z[3]});Ne0){var ie=s,he=A0(ie,Um(r)),U=A0(ie,Um(de)),ke=he;if(U2){var j=A0(ie,{x:de[2],y:de[3]});j=g||L){y={cp:_,segment:E};break}}if(y)break}var S=y.cp,C=y.segment,M=(g-x)/C.length,R=C.t1-C.t0,T=p?C.t0+R*M:C.t1-R*M;T=_x(0,T,1),e=Wm(S.p0,S.p1,S.p2,T),d=BYe(S.p0,S.p1,S.p2,T);break}case"straight":case"segments":case"haystack":{for(var I=0,A,D,N,O,B=n.allpts.length,P=0;P+3=g));P+=2);var $=g-D,z=$/A;z=_x(0,z,1),e=UUe(N,O,z),d=H0e(N,O);break}}s("labelX",f,e.x),s("labelY",f,e.y),s("labelAutoAngle",f,d)}};u("source"),u("target"),this.applyLabelDimensions(t)}};Hc.applyLabelDimensions=function(t){this.applyPrefixedLabelDimensions(t),t.isEdge()&&(this.applyPrefixedLabelDimensions(t,"source"),this.applyPrefixedLabelDimensions(t,"target"))};Hc.applyPrefixedLabelDimensions=function(t,e){var r=t._private,n=this.getLabelText(t,e),i=this.calculateLabelDimensions(t,n),a=t.pstyle("line-height").pfValue,s=t.pstyle("text-wrap").strValue,o=Bl(r.rscratch,"labelWrapCachedLines",e)||[],l=s!=="wrap"?1:Math.max(o.length,1),u=i.height/l,h=u*a,f=i.width,d=i.height+(l-1)*(a-1)*u;mf(r.rstyle,"labelWidth",e,f),mf(r.rscratch,"labelWidth",e,f),mf(r.rstyle,"labelHeight",e,d),mf(r.rscratch,"labelHeight",e,d),mf(r.rscratch,"labelLineHeight",e,h)};Hc.getLabelText=function(t,e){var r=t._private,n=e?e+"-":"",i=t.pstyle(n+"label").strValue,a=t.pstyle("text-transform").value,s=function(J,X){return X?(mf(r.rscratch,J,e,X),X):Bl(r.rscratch,J,e)};if(!i)return"";a=="none"||(a=="uppercase"?i=i.toUpperCase():a=="lowercase"&&(i=i.toLowerCase()));var o=t.pstyle("text-wrap").value;if(o==="wrap"){var l=s("labelKey");if(l!=null&&s("labelWrapKey")===l)return s("labelWrapCachedText");for(var u="\u200B",h=i.split(` `),f=t.pstyle("text-max-width").pfValue,d=t.pstyle("text-overflow-wrap").value,p=d==="anywhere",g=[],m=/[\s\u200b]+|$/g,y=0;yf){var k=x.matchAll(m),E="",L=0,S=Ade(k),C;try{for(S.s();!(C=S.n()).done;){var M=C.value,R=M[0],T=x.substring(L,M.index);L=M.index+R.length;var I=E.length===0?T:E+T+R,A=this.calculateLabelDimensions(t,I),D=A.width;D<=f?E+=T+R:(E&&g.push(E),E=T+R)}}catch(H){S.e(H)}finally{S.f()}E.match(/^[\s\u200b]+$/)||g.push(E)}else g.push(x)}s("labelWrapCachedLines",g),i=s("labelWrapCachedText",g.join(` `)),s("labelWrapKey",l)}else if(o==="ellipsis"){var N=t.pstyle("text-max-width").pfValue,O="",B="\u2026",P=!1;if(this.calculateLabelDimensions(t,i).widthN)break;O+=i[$],$===i.length-1&&(P=!0)}return P||(O+=B),O}return i};Hc.getLabelJustification=function(t){var e=t.pstyle("text-justification").strValue,r=t.pstyle("text-halign").strValue;if(e==="auto")if(t.isNode())switch(r){case"left":return"right";case"right":return"left";default:return"center"}else return"center";else return e};Hc.calculateLabelDimensions=function(t,e){var r=this,n=r.cy.window(),i=n.document,a=M0(e,t._private.labelDimsKey),s=r.labelDimCache||(r.labelDimCache=[]),o=s[a];if(o!=null)return o;var l=0,u=t.pstyle("font-style").strValue,h=t.pstyle("font-size").pfValue,f=t.pstyle("font-family").strValue,d=t.pstyle("font-weight").strValue,p=this.labelCalcCanvas,g=this.labelCalcCanvasContext;if(!p){p=this.labelCalcCanvas=i.createElement("canvas"),g=this.labelCalcCanvasContext=p.getContext("2d");var m=p.style;m.position="absolute",m.left="-9999px",m.top="-9999px",m.zIndex="-1",m.visibility="hidden",m.pointerEvents="none"}g.font="".concat(u," ").concat(d," ").concat(h,"px ").concat(f);for(var y=0,x=0,b=e.split(` `),w=0;w1&&arguments[1]!==void 0?arguments[1]:!0;if(e.merge(s),o)for(var l=0;l=t.desktopTapThreshold2}var Ke=a(q);lt&&(t.hoverData.tapholdCancelled=!0);var it=function(){var Qt=t.hoverData.dragDelta=t.hoverData.dragDelta||[];Qt.length===0?(Qt.push(Ce[0]),Qt.push(Ce[1])):(Qt[0]+=Ce[0],Qt[1]+=Ce[1])};ie=!0,i(Fe,["mousemove","vmousemove","tapdrag"],q,{x:j[0],y:j[1]});var mt=function(){t.data.bgActivePosistion=void 0,t.hoverData.selecting||he.emit({originalEvent:q,type:"boxstart",position:{x:j[0],y:j[1]}}),Ge[4]=1,t.hoverData.selecting=!0,t.redrawHint("select",!0),t.redraw()};if(t.hoverData.which===3){if(lt){var Ht={originalEvent:q,type:"cxtdrag",position:{x:j[0],y:j[1]}};$e?$e.emit(Ht):he.emit(Ht),t.hoverData.cxtDragged=!0,(!t.hoverData.cxtOver||Fe!==t.hoverData.cxtOver)&&(t.hoverData.cxtOver&&t.hoverData.cxtOver.emit({originalEvent:q,type:"cxtdragout",position:{x:j[0],y:j[1]}}),t.hoverData.cxtOver=Fe,Fe&&Fe.emit({originalEvent:q,type:"cxtdragover",position:{x:j[0],y:j[1]}}))}}else if(t.hoverData.dragging){if(ie=!0,he.panningEnabled()&&he.userPanningEnabled()){var ot;if(t.hoverData.justStartedPan){var et=t.hoverData.mdownPos;ot={x:(j[0]-et[0])*U,y:(j[1]-et[1])*U},t.hoverData.justStartedPan=!1}else ot={x:Ce[0]*U,y:Ce[1]*U};he.panBy(ot),he.emit("dragpan"),t.hoverData.dragged=!0}j=t.projectIntoViewport(q.clientX,q.clientY)}else if(Ge[4]==1&&($e==null||$e.pannable())){if(lt){if(!t.hoverData.dragging&&he.boxSelectionEnabled()&&(Ke||!he.panningEnabled()||!he.userPanningEnabled()))mt();else if(!t.hoverData.selecting&&he.panningEnabled()&&he.userPanningEnabled()){var ht=s($e,t.hoverData.downs);ht&&(t.hoverData.dragging=!0,t.hoverData.justStartedPan=!0,Ge[4]=0,t.data.bgActivePosistion=Um(ye),t.redrawHint("select",!0),t.redraw())}$e&&$e.pannable()&&$e.active()&&$e.unactivate()}}else{if($e&&$e.pannable()&&$e.active()&&$e.unactivate(),(!$e||!$e.grabbed())&&Fe!=ge&&(ge&&i(ge,["mouseout","tapdragout"],q,{x:j[0],y:j[1]}),Fe&&i(Fe,["mouseover","tapdragover"],q,{x:j[0],y:j[1]}),t.hoverData.last=Fe),$e)if(lt){if(he.boxSelectionEnabled()&&Ke)$e&&$e.grabbed()&&(x(qe),$e.emit("freeon"),qe.emit("free"),t.dragData.didDrag&&($e.emit("dragfreeon"),qe.emit("dragfree"))),mt();else if($e&&$e.grabbed()&&t.nodeIsDraggable($e)){var bt=!t.dragData.didDrag;bt&&t.redrawHint("eles",!0),t.dragData.didDrag=!0,t.hoverData.draggingEles||m(qe,{inDragLayer:!0});var tt={x:0,y:0};if(dt(Ce[0])&&dt(Ce[1])&&(tt.x+=Ce[0],tt.y+=Ce[1],bt)){var _t=t.hoverData.dragDelta;_t&&dt(_t[0])&&dt(_t[1])&&(tt.x+=_t[0],tt.y+=_t[1])}t.hoverData.draggingEles=!0,qe.silentShift(tt).emit("position drag"),t.redrawHint("drag",!0),t.redraw()}}else it();ie=!0}if(Ge[2]=j[0],Ge[3]=j[1],ie)return q.stopPropagation&&q.stopPropagation(),q.preventDefault&&q.preventDefault(),!1}},!1);var T,I,A;t.registerBinding(e,"mouseup",function(q){if(!(t.hoverData.which===1&&q.which!==1&&t.hoverData.capture)){var de=t.hoverData.capture;if(de){t.hoverData.capture=!1;var ie=t.cy,he=t.projectIntoViewport(q.clientX,q.clientY),U=t.selection,ke=t.findNearestElement(he[0],he[1],!0,!1),j=t.dragData.possibleDragElements,ye=t.hoverData.down,Ae=a(q);if(t.data.bgActivePosistion&&(t.redrawHint("select",!0),t.redraw()),t.hoverData.tapholdCancelled=!0,t.data.bgActivePosistion=void 0,ye&&ye.unactivate(),t.hoverData.which===3){var Ge={originalEvent:q,type:"cxttapend",position:{x:he[0],y:he[1]}};if(ye?ye.emit(Ge):ie.emit(Ge),!t.hoverData.cxtDragged){var Fe={originalEvent:q,type:"cxttap",position:{x:he[0],y:he[1]}};ye?ye.emit(Fe):ie.emit(Fe)}t.hoverData.cxtDragged=!1,t.hoverData.which=null}else if(t.hoverData.which===1){if(i(ke,["mouseup","tapend","vmouseup"],q,{x:he[0],y:he[1]}),!t.dragData.didDrag&&!t.hoverData.dragged&&!t.hoverData.selecting&&!t.hoverData.isOverThresholdDrag&&(i(ye,["click","tap","vclick"],q,{x:he[0],y:he[1]}),I=!1,q.timeStamp-A<=ie.multiClickDebounceTime()?(T&&clearTimeout(T),I=!0,A=null,i(ye,["dblclick","dbltap","vdblclick"],q,{x:he[0],y:he[1]})):(T=setTimeout(function(){I||i(ye,["oneclick","onetap","voneclick"],q,{x:he[0],y:he[1]})},ie.multiClickDebounceTime()),A=q.timeStamp)),ye==null&&!t.dragData.didDrag&&!t.hoverData.selecting&&!t.hoverData.dragged&&!a(q)&&(ie.$(r).unselect(["tapunselect"]),j.length>0&&t.redrawHint("eles",!0),t.dragData.possibleDragElements=j=ie.collection()),ke==ye&&!t.dragData.didDrag&&!t.hoverData.selecting&&ke!=null&&ke._private.selectable&&(t.hoverData.dragging||(ie.selectionType()==="additive"||Ae?ke.selected()?ke.unselect(["tapunselect"]):ke.select(["tapselect"]):Ae||(ie.$(r).unmerge(ke).unselect(["tapunselect"]),ke.select(["tapselect"]))),t.redrawHint("eles",!0)),t.hoverData.selecting){var ge=ie.collection(t.getAllInBox(U[0],U[1],U[2],U[3]));t.redrawHint("select",!0),ge.length>0&&t.redrawHint("eles",!0),ie.emit({type:"boxend",originalEvent:q,position:{x:he[0],y:he[1]}});var $e=function(lt){return lt.selectable()&&!lt.selected()};ie.selectionType()==="additive"||Ae||ie.$(r).unmerge(ge).unselect(),ge.emit("box").stdFilter($e).select().emit("boxselect"),t.redraw()}if(t.hoverData.dragging&&(t.hoverData.dragging=!1,t.redrawHint("select",!0),t.redrawHint("eles",!0),t.redraw()),!U[4]){t.redrawHint("drag",!0),t.redrawHint("eles",!0);var Ce=ye&&ye.grabbed();x(j),Ce&&(ye.emit("freeon"),j.emit("free"),t.dragData.didDrag&&(ye.emit("dragfreeon"),j.emit("dragfree")))}}U[4]=0,t.hoverData.down=null,t.hoverData.cxtStarted=!1,t.hoverData.draggingEles=!1,t.hoverData.selecting=!1,t.hoverData.isOverThresholdDrag=!1,t.dragData.didDrag=!1,t.hoverData.dragged=!1,t.hoverData.dragDelta=[],t.hoverData.mdownPos=null,t.hoverData.mdownGPos=null,t.hoverData.which=null}}},!1);var D=function(q){if(!t.scrollingPage){var de=t.cy,ie=de.zoom(),he=de.pan(),U=t.projectIntoViewport(q.clientX,q.clientY),ke=[U[0]*ie+he.x,U[1]*ie+he.y];if(t.hoverData.draggingEles||t.hoverData.dragging||t.hoverData.cxtStarted||C()){q.preventDefault();return}if(de.panningEnabled()&&de.userPanningEnabled()&&de.zoomingEnabled()&&de.userZoomingEnabled()){q.preventDefault(),t.data.wheelZooming=!0,clearTimeout(t.data.wheelTimeout),t.data.wheelTimeout=setTimeout(function(){t.data.wheelZooming=!1,t.redrawHint("eles",!0),t.redraw()},150);var j;q.deltaY!=null?j=q.deltaY/-250:q.wheelDeltaY!=null?j=q.wheelDeltaY/1e3:j=q.wheelDelta/1e3,j=j*t.wheelSensitivity;var ye=q.deltaMode===1;ye&&(j*=33);var Ae=de.zoom()*Math.pow(10,j);q.type==="gesturechange"&&(Ae=t.gestureStartZoom*q.scale),de.zoom({level:Ae,renderedPosition:{x:ke[0],y:ke[1]}}),de.emit(q.type==="gesturechange"?"pinchzoom":"scrollzoom")}}};t.registerBinding(t.container,"wheel",D,!0),t.registerBinding(e,"scroll",function(q){t.scrollingPage=!0,clearTimeout(t.scrollingPageTimeout),t.scrollingPageTimeout=setTimeout(function(){t.scrollingPage=!1},250)},!0),t.registerBinding(t.container,"gesturestart",function(q){t.gestureStartZoom=t.cy.zoom(),t.hasTouchStarted||q.preventDefault()},!0),t.registerBinding(t.container,"gesturechange",function(xe){t.hasTouchStarted||D(xe)},!0),t.registerBinding(t.container,"mouseout",function(q){var de=t.projectIntoViewport(q.clientX,q.clientY);t.cy.emit({originalEvent:q,type:"mouseout",position:{x:de[0],y:de[1]}})},!1),t.registerBinding(t.container,"mouseover",function(q){var de=t.projectIntoViewport(q.clientX,q.clientY);t.cy.emit({originalEvent:q,type:"mouseover",position:{x:de[0],y:de[1]}})},!1);var N,O,B,P,$,z,H,J,X,oe,K,ee,Q,W=function(q,de,ie,he){return Math.sqrt((ie-q)*(ie-q)+(he-de)*(he-de))},Y=function(q,de,ie,he){return(ie-q)*(ie-q)+(he-de)*(he-de)},Z;t.registerBinding(t.container,"touchstart",Z=function(q){if(t.hasTouchStarted=!0,!!M(q)){w(),t.touchData.capture=!0,t.data.bgActivePosistion=void 0;var de=t.cy,ie=t.touchData.now,he=t.touchData.earlier;if(q.touches[0]){var U=t.projectIntoViewport(q.touches[0].clientX,q.touches[0].clientY);ie[0]=U[0],ie[1]=U[1]}if(q.touches[1]){var U=t.projectIntoViewport(q.touches[1].clientX,q.touches[1].clientY);ie[2]=U[0],ie[3]=U[1]}if(q.touches[2]){var U=t.projectIntoViewport(q.touches[2].clientX,q.touches[2].clientY);ie[4]=U[0],ie[5]=U[1]}if(q.touches[1]){t.touchData.singleTouchMoved=!0,x(t.dragData.touchDragEles);var ke=t.findContainerClientCoords();X=ke[0],oe=ke[1],K=ke[2],ee=ke[3],N=q.touches[0].clientX-X,O=q.touches[0].clientY-oe,B=q.touches[1].clientX-X,P=q.touches[1].clientY-oe,Q=0<=N&&N<=K&&0<=B&&B<=K&&0<=O&&O<=ee&&0<=P&&P<=ee;var j=de.pan(),ye=de.zoom();$=W(N,O,B,P),z=Y(N,O,B,P),H=[(N+B)/2,(O+P)/2],J=[(H[0]-j.x)/ye,(H[1]-j.y)/ye];var Ae=200,Ge=Ae*Ae;if(z=1){for(var ft=t.touchData.startPosition=[null,null,null,null,null,null],Ze=0;Ze=t.touchTapThreshold2}if(de&&t.touchData.cxt){q.preventDefault();var ft=q.touches[0].clientX-X,Ze=q.touches[0].clientY-oe,st=q.touches[1].clientX-X,Ue=q.touches[1].clientY-oe,Ke=Y(ft,Ze,st,Ue),it=Ke/z,mt=150,Ht=mt*mt,ot=1.5,et=ot*ot;if(it>=et||Ke>=Ht){t.touchData.cxt=!1,t.data.bgActivePosistion=void 0,t.redrawHint("select",!0);var ht={originalEvent:q,type:"cxttapend",position:{x:U[0],y:U[1]}};t.touchData.start?(t.touchData.start.unactivate().emit(ht),t.touchData.start=null):he.emit(ht)}}if(de&&t.touchData.cxt){var ht={originalEvent:q,type:"cxtdrag",position:{x:U[0],y:U[1]}};t.data.bgActivePosistion=void 0,t.redrawHint("select",!0),t.touchData.start?t.touchData.start.emit(ht):he.emit(ht),t.touchData.start&&(t.touchData.start._private.grabbed=!1),t.touchData.cxtDragged=!0;var bt=t.findNearestElement(U[0],U[1],!0,!0);(!t.touchData.cxtOver||bt!==t.touchData.cxtOver)&&(t.touchData.cxtOver&&t.touchData.cxtOver.emit({originalEvent:q,type:"cxtdragout",position:{x:U[0],y:U[1]}}),t.touchData.cxtOver=bt,bt&&bt.emit({originalEvent:q,type:"cxtdragover",position:{x:U[0],y:U[1]}}))}else if(de&&q.touches[2]&&he.boxSelectionEnabled())q.preventDefault(),t.data.bgActivePosistion=void 0,this.lastThreeTouch=+new Date,t.touchData.selecting||he.emit({originalEvent:q,type:"boxstart",position:{x:U[0],y:U[1]}}),t.touchData.selecting=!0,t.touchData.didSelect=!0,ie[4]=1,!ie||ie.length===0||ie[0]===void 0?(ie[0]=(U[0]+U[2]+U[4])/3,ie[1]=(U[1]+U[3]+U[5])/3,ie[2]=(U[0]+U[2]+U[4])/3+1,ie[3]=(U[1]+U[3]+U[5])/3+1):(ie[2]=(U[0]+U[2]+U[4])/3,ie[3]=(U[1]+U[3]+U[5])/3),t.redrawHint("select",!0),t.redraw();else if(de&&q.touches[1]&&!t.touchData.didSelect&&he.zoomingEnabled()&&he.panningEnabled()&&he.userZoomingEnabled()&&he.userPanningEnabled()){q.preventDefault(),t.data.bgActivePosistion=void 0,t.redrawHint("select",!0);var tt=t.dragData.touchDragEles;if(tt){t.redrawHint("drag",!0);for(var _t=0;_t0&&!t.hoverData.draggingEles&&!t.swipePanning&&t.data.bgActivePosistion!=null&&(t.data.bgActivePosistion=void 0,t.redrawHint("select",!0),t.redraw())}},!1);var ce;t.registerBinding(e,"touchcancel",ce=function(q){var de=t.touchData.start;t.touchData.capture=!1,de&&de.unactivate()});var ue,te,Ne,ae;if(t.registerBinding(e,"touchend",ue=function(q){var de=t.touchData.start,ie=t.touchData.capture;if(ie)q.touches.length===0&&(t.touchData.capture=!1),q.preventDefault();else return;var he=t.selection;t.swipePanning=!1,t.hoverData.draggingEles=!1;var U=t.cy,ke=U.zoom(),j=t.touchData.now,ye=t.touchData.earlier;if(q.touches[0]){var Ae=t.projectIntoViewport(q.touches[0].clientX,q.touches[0].clientY);j[0]=Ae[0],j[1]=Ae[1]}if(q.touches[1]){var Ae=t.projectIntoViewport(q.touches[1].clientX,q.touches[1].clientY);j[2]=Ae[0],j[3]=Ae[1]}if(q.touches[2]){var Ae=t.projectIntoViewport(q.touches[2].clientX,q.touches[2].clientY);j[4]=Ae[0],j[5]=Ae[1]}de&&de.unactivate();var Ge;if(t.touchData.cxt){if(Ge={originalEvent:q,type:"cxttapend",position:{x:j[0],y:j[1]}},de?de.emit(Ge):U.emit(Ge),!t.touchData.cxtDragged){var Fe={originalEvent:q,type:"cxttap",position:{x:j[0],y:j[1]}};de?de.emit(Fe):U.emit(Fe)}t.touchData.start&&(t.touchData.start._private.grabbed=!1),t.touchData.cxt=!1,t.touchData.start=null,t.redraw();return}if(!q.touches[2]&&U.boxSelectionEnabled()&&t.touchData.selecting){t.touchData.selecting=!1;var ge=U.collection(t.getAllInBox(he[0],he[1],he[2],he[3]));he[0]=void 0,he[1]=void 0,he[2]=void 0,he[3]=void 0,he[4]=0,t.redrawHint("select",!0),U.emit({type:"boxend",originalEvent:q,position:{x:j[0],y:j[1]}});var $e=function(Ht){return Ht.selectable()&&!Ht.selected()};ge.emit("box").stdFilter($e).select().emit("boxselect"),ge.nonempty()&&t.redrawHint("eles",!0),t.redraw()}if(de?.unactivate(),q.touches[2])t.data.bgActivePosistion=void 0,t.redrawHint("select",!0);else if(!q.touches[1]){if(!q.touches[0]){if(!q.touches[0]){t.data.bgActivePosistion=void 0,t.redrawHint("select",!0);var Ce=t.dragData.touchDragEles;if(de!=null){var qe=de._private.grabbed;x(Ce),t.redrawHint("drag",!0),t.redrawHint("eles",!0),qe&&(de.emit("freeon"),Ce.emit("free"),t.dragData.didDrag&&(de.emit("dragfreeon"),Ce.emit("dragfree"))),i(de,["touchend","tapend","vmouseup","tapdragout"],q,{x:j[0],y:j[1]}),de.unactivate(),t.touchData.start=null}else{var lt=t.findNearestElement(j[0],j[1],!0,!0);i(lt,["touchend","tapend","vmouseup","tapdragout"],q,{x:j[0],y:j[1]})}var xt=t.touchData.startPosition[0]-j[0],ft=xt*xt,Ze=t.touchData.startPosition[1]-j[1],st=Ze*Ze,Ue=ft+st,Ke=Ue*ke*ke;t.touchData.singleTouchMoved||(de||U.$(":selected").unselect(["tapunselect"]),i(de,["tap","vclick"],q,{x:j[0],y:j[1]}),te=!1,q.timeStamp-ae<=U.multiClickDebounceTime()?(Ne&&clearTimeout(Ne),te=!0,ae=null,i(de,["dbltap","vdblclick"],q,{x:j[0],y:j[1]})):(Ne=setTimeout(function(){te||i(de,["onetap","voneclick"],q,{x:j[0],y:j[1]})},U.multiClickDebounceTime()),ae=q.timeStamp)),de!=null&&!t.dragData.didDrag&&de._private.selectable&&Ke"u"){var we=[],Ie=function(q){return{clientX:q.clientX,clientY:q.clientY,force:1,identifier:q.pointerId,pageX:q.pageX,pageY:q.pageY,radiusX:q.width/2,radiusY:q.height/2,screenX:q.screenX,screenY:q.screenY,target:q.target}},Ee=function(q){return{event:q,touch:Ie(q)}},Oe=function(q){we.push(Ee(q))},De=function(q){for(var de=0;de0)return H[0]}return null},g=Object.keys(d),m=0;m0?p:jde(a,s,e,r,n,i,o,l)},checkPoint:function(e,r,n,i,a,s,o,l){l=l==="auto"?O0(i,a):l;var u=2*l;if(Ju(e,r,this.points,s,o,i,a-u,[0,-1],n)||Ju(e,r,this.points,s,o,i-u,a,[0,-1],n))return!0;var h=i/2+2*n,f=a/2+2*n,d=[s-h,o-f,s-h,o,s+h,o,s+h,o-f];return!!(Bs(e,r,d)||N0(e,r,u,u,s+i/2-l,o+a/2-l,n)||N0(e,r,u,u,s-i/2+l,o+a/2-l,n))}}};th.registerNodeShapes=function(){var t=this.nodeShapes={},e=this;this.generateEllipse(),this.generatePolygon("triangle",ss(3,0)),this.generateRoundPolygon("round-triangle",ss(3,0)),this.generatePolygon("rectangle",ss(4,0)),t.square=t.rectangle,this.generateRoundRectangle(),this.generateCutRectangle(),this.generateBarrel(),this.generateBottomRoundrectangle();{var r=[0,1,1,0,0,-1,-1,0];this.generatePolygon("diamond",r),this.generateRoundPolygon("round-diamond",r)}this.generatePolygon("pentagon",ss(5,0)),this.generateRoundPolygon("round-pentagon",ss(5,0)),this.generatePolygon("hexagon",ss(6,0)),this.generateRoundPolygon("round-hexagon",ss(6,0)),this.generatePolygon("heptagon",ss(7,0)),this.generateRoundPolygon("round-heptagon",ss(7,0)),this.generatePolygon("octagon",ss(8,0)),this.generateRoundPolygon("round-octagon",ss(8,0));var n=new Array(20);{var i=hD(5,0),a=hD(5,Math.PI/5),s=.5*(3-Math.sqrt(5));s*=1.57;for(var o=0;o=e.deqFastCost*_)break}else if(u){if(b>=e.deqCost*p||b>=e.deqAvgCost*d)break}else if(w>=e.deqNoDrawCost*lD)break;var k=e.deq(n,y,m);if(k.length>0)for(var E=0;E0&&(e.onDeqd(n,g),!u&&e.shouldRedraw(n,g,y,m)&&a())},o=e.priority||ID;i.beforeRender(s,o(n))}}}},zYe=function(){function t(e){var r=arguments.length>1&&arguments[1]!==void 0?arguments[1]:F6;AD(this,t),this.idsByKey=new Vc,this.keyForId=new Vc,this.cachesByLvl=new Vc,this.lvls=[],this.getKey=e,this.doesEleInvalidateKey=r}return _D(t,[{key:"getIdsFor",value:function(r){r==null&&ni("Can not get id list for null key");var n=this.idsByKey,i=this.idsByKey.get(r);return i||(i=new Qm,n.set(r,i)),i}},{key:"addIdForKey",value:function(r,n){r!=null&&this.getIdsFor(r).add(n)}},{key:"deleteIdForKey",value:function(r,n){r!=null&&this.getIdsFor(r).delete(n)}},{key:"getNumberOfIdsForKey",value:function(r){return r==null?0:this.getIdsFor(r).size}},{key:"updateKeyMappingFor",value:function(r){var n=r.id(),i=this.keyForId.get(n),a=this.getKey(r);this.deleteIdForKey(i,n),this.addIdForKey(a,n),this.keyForId.set(n,a)}},{key:"deleteKeyMappingFor",value:function(r){var n=r.id(),i=this.keyForId.get(n);this.deleteIdForKey(i,n),this.keyForId.delete(n)}},{key:"keyHasChangedFor",value:function(r){var n=r.id(),i=this.keyForId.get(n),a=this.getKey(r);return i!==a}},{key:"isInvalid",value:function(r){return this.keyHasChangedFor(r)||this.doesEleInvalidateKey(r)}},{key:"getCachesAt",value:function(r){var n=this.cachesByLvl,i=this.lvls,a=n.get(r);return a||(a=new Vc,n.set(r,a),i.push(r)),a}},{key:"getCache",value:function(r,n){return this.getCachesAt(n).get(r)}},{key:"get",value:function(r,n){var i=this.getKey(r),a=this.getCache(i,n);return a!=null&&this.updateKeyMappingFor(r),a}},{key:"getForCachedKey",value:function(r,n){var i=this.keyForId.get(r.id()),a=this.getCache(i,n);return a}},{key:"hasCache",value:function(r,n){return this.getCachesAt(n).has(r)}},{key:"has",value:function(r,n){var i=this.getKey(r);return this.hasCache(i,n)}},{key:"setCache",value:function(r,n,i){i.key=r,this.getCachesAt(n).set(r,i)}},{key:"set",value:function(r,n,i){var a=this.getKey(r);this.setCache(a,n,i),this.updateKeyMappingFor(r)}},{key:"deleteCache",value:function(r,n){this.getCachesAt(n).delete(r)}},{key:"delete",value:function(r,n){var i=this.getKey(r);this.deleteCache(i,n)}},{key:"invalidateKey",value:function(r){var n=this;this.lvls.forEach(function(i){return n.deleteCache(r,i)})}},{key:"invalidate",value:function(r){var n=r.id(),i=this.keyForId.get(n);this.deleteKeyMappingFor(r);var a=this.doesEleInvalidateKey(r);return a&&this.invalidateKey(i),a||this.getNumberOfIdsForKey(i)===0}}]),t}(),mde=25,C6=50,O6=-4,TD=3,$Ye=7.99,GYe=8,UYe=1024,VYe=1024,WYe=1024,HYe=.2,qYe=.8,YYe=10,XYe=.15,jYe=.1,KYe=.9,ZYe=.9,QYe=100,JYe=1,Vm={dequeue:"dequeue",downscale:"downscale",highQuality:"highQuality"},eXe=ba({getKey:null,doesEleInvalidateKey:F6,drawElement:null,getBoundingBox:null,getRotationPoint:null,getRotationOffset:null,isVisible:Gde,allowEdgeTxrCaching:!0,allowParentTxrCaching:!0}),wx=function(e,r){var n=this;n.renderer=e,n.onDequeues=[];var i=eXe(r);Kt(n,i),n.lookup=new zYe(i.getKey,i.doesEleInvalidateKey),n.setupDequeueing()},Pi=wx.prototype;Pi.reasons=Vm;Pi.getTextureQueue=function(t){var e=this;return e.eleImgCaches=e.eleImgCaches||{},e.eleImgCaches[t]=e.eleImgCaches[t]||[]};Pi.getRetiredTextureQueue=function(t){var e=this,r=e.eleImgCaches.retired=e.eleImgCaches.retired||{},n=r[t]=r[t]||[];return n};Pi.getElementQueue=function(){var t=this,e=t.eleCacheQueue=t.eleCacheQueue||new Fx(function(r,n){return n.reqs-r.reqs});return e};Pi.getElementKeyToQueue=function(){var t=this,e=t.eleKeyToCacheQueue=t.eleKeyToCacheQueue||{};return e};Pi.getElement=function(t,e,r,n,i){var a=this,s=this.renderer,o=s.cy.zoom(),l=this.lookup;if(!e||e.w===0||e.h===0||isNaN(e.w)||isNaN(e.h)||!t.visible()||t.removed()||!a.allowEdgeTxrCaching&&t.isEdge()||!a.allowParentTxrCaching&&t.isParent())return null;if(n==null&&(n=Math.ceil(DD(o*r))),n=$Ye||n>TD)return null;var u=Math.pow(2,n),h=e.h*u,f=e.w*u,d=s.eleTextBiggerThanMin(t,u);if(!this.isVisible(t,d))return null;var p=l.get(t,n);if(p&&p.invalidated&&(p.invalidated=!1,p.texture.invalidatedWidth-=p.width),p)return p;var g;if(h<=mde?g=mde:h<=C6?g=C6:g=Math.ceil(h/C6)*C6,h>WYe||f>VYe)return null;var m=a.getTextureQueue(g),y=m[m.length-2],x=function(){return a.recycleTexture(g,f)||a.addTexture(g,f)};y||(y=m[m.length-1]),y||(y=x()),y.width-y.usedWidthn;R--)C=a.getElement(t,e,r,R,Vm.downscale);M()}else return a.queueElement(t,E.level-1),E;else{var T;if(!w&&!_&&!k)for(var I=n-1;I>=O6;I--){var A=l.get(t,I);if(A){T=A;break}}if(b(T))return a.queueElement(t,n),T;y.context.translate(y.usedWidth,0),y.context.scale(u,u),this.drawElement(y.context,t,e,d,!1),y.context.scale(1/u,1/u),y.context.translate(-y.usedWidth,0)}return p={x:y.usedWidth,texture:y,level:n,scale:u,width:f,height:h,scaledLabelShown:d},y.usedWidth+=Math.ceil(f+GYe),y.eleCaches.push(p),l.set(t,n,p),a.checkTextureFullness(y),p};Pi.invalidateElements=function(t){for(var e=0;e=HYe*t.width&&this.retireTexture(t)};Pi.checkTextureFullness=function(t){var e=this,r=e.getTextureQueue(t.height);t.usedWidth/t.width>qYe&&t.fullnessChecks>=YYe?wf(r,t):t.fullnessChecks++};Pi.retireTexture=function(t){var e=this,r=t.height,n=e.getTextureQueue(r),i=this.lookup;wf(n,t),t.retired=!0;for(var a=t.eleCaches,s=0;s=e)return s.retired=!1,s.usedWidth=0,s.invalidatedWidth=0,s.fullnessChecks=0,MD(s.eleCaches),s.context.setTransform(1,0,0,1,0,0),s.context.clearRect(0,0,s.width,s.height),wf(i,s),n.push(s),s}};Pi.queueElement=function(t,e){var r=this,n=r.getElementQueue(),i=r.getElementKeyToQueue(),a=this.getKey(t),s=i[a];if(s)s.level=Math.max(s.level,e),s.eles.merge(t),s.reqs++,n.updateItem(s);else{var o={eles:t.spawn().merge(t),level:e,reqs:1,key:a};n.push(o),i[a]=o}};Pi.dequeue=function(t){for(var e=this,r=e.getElementQueue(),n=e.getElementKeyToQueue(),i=[],a=e.lookup,s=0;s0;s++){var o=r.pop(),l=o.key,u=o.eles[0],h=a.hasCache(u,o.level);if(n[l]=null,h)continue;i.push(o);var f=e.getBoundingBox(u);e.getElement(u,f,t,o.level,Vm.dequeue)}return i};Pi.removeFromQueue=function(t){var e=this,r=e.getElementQueue(),n=e.getElementKeyToQueue(),i=this.getKey(t),a=n[i];a!=null&&(a.eles.length===1?(a.reqs=ND,r.updateItem(a),r.pop(),n[i]=null):a.eles.unmerge(t))};Pi.onDequeue=function(t){this.onDequeues.push(t)};Pi.offDequeue=function(t){wf(this.onDequeues,t)};Pi.setupDequeueing=K0e.setupDequeueing({deqRedrawThreshold:QYe,deqCost:XYe,deqAvgCost:jYe,deqNoDrawCost:KYe,deqFastCost:ZYe,deq:function(e,r,n){return e.dequeue(r,n)},onDeqd:function(e,r){for(var n=0;n=rXe||r>q6)return null}n.validateLayersElesOrdering(r,t);var l=n.layersByLevel,u=Math.pow(2,r),h=l[r]=l[r]||[],f,d=n.levelIsComplete(r,t),p,g=function(){var M=function(D){if(n.validateLayersElesOrdering(D,t),n.levelIsComplete(D,t))return p=l[D],!0},R=function(D){if(!p)for(var N=r+D;Tx<=N&&N<=q6&&!M(N);N+=D);};R(1),R(-1);for(var T=h.length-1;T>=0;T--){var I=h[T];I.invalid&&wf(h,I)}};if(!d)g();else return h;var m=function(){if(!f){f=Fs();for(var M=0;Myde||I>yde)return null;var A=T*I;if(A>uXe)return null;var D=n.makeLayer(f,r);if(R!=null){var N=h.indexOf(R)+1;h.splice(N,0,D)}else(M.insert===void 0||M.insert)&&h.unshift(D);return D};if(n.skipping&&!o)return null;for(var x=null,b=t.length/tXe,w=!o,_=0;_=b||!Xde(x.bb,k.boundingBox()))&&(x=y({insert:!0,after:x}),!x))return null;p||w?n.queueLayer(x,k):n.drawEleInLayer(x,k,r,e),x.eles.push(k),L[r]=x}return p||(w?null:h)};wa.getEleLevelForLayerLevel=function(t,e){return t};wa.drawEleInLayer=function(t,e,r,n){var i=this,a=this.renderer,s=t.context,o=e.boundingBox();o.w===0||o.h===0||!e.visible()||(r=i.getEleLevelForLayerLevel(r,n),a.setImgSmoothing(s,!1),a.drawCachedElement(s,e,null,null,r,hXe),a.setImgSmoothing(s,!0))};wa.levelIsComplete=function(t,e){var r=this,n=r.layersByLevel[t];if(!n||n.length===0)return!1;for(var i=0,a=0;a0||s.invalid)return!1;i+=s.eles.length}return i===e.length};wa.validateLayersElesOrdering=function(t,e){var r=this.layersByLevel[t];if(r)for(var n=0;n0){e=!0;break}}return 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0),$?s.drawCachedNodes(A,M.drag,o,B):s.drawCachedElements(A,M.drag,o,B),s.debug&&s.drawDebugPoints(A,M.drag),!r&&!d&&(h[s.DRAG]=!1)}if(s.showFps||!n&&h[s.SELECT_BOX]&&!r){var A=e||u.contexts[s.SELECT_BOX];if(T(A),s.selection[4]==1&&(s.hoverData.selecting||s.touchData.selecting)){var w=s.cy.zoom(),X=b.core("selection-box-border-width").value/w;A.lineWidth=X,A.fillStyle="rgba("+b.core("selection-box-color").value[0]+","+b.core("selection-box-color").value[1]+","+b.core("selection-box-color").value[2]+","+b.core("selection-box-opacity").value+")",A.fillRect(s.selection[0],s.selection[1],s.selection[2]-s.selection[0],s.selection[3]-s.selection[1]),X>0&&(A.strokeStyle="rgba("+b.core("selection-box-border-color").value[0]+","+b.core("selection-box-border-color").value[1]+","+b.core("selection-box-border-color").value[2]+","+b.core("selection-box-opacity").value+")",A.strokeRect(s.selection[0],s.selection[1],s.selection[2]-s.selection[0],s.selection[3]-s.selection[1]))}if(u.bgActivePosistion&&!s.hoverData.selecting){var w=s.cy.zoom(),oe=u.bgActivePosistion;A.fillStyle="rgba("+b.core("active-bg-color").value[0]+","+b.core("active-bg-color").value[1]+","+b.core("active-bg-color").value[2]+","+b.core("active-bg-opacity").value+")",A.beginPath(),A.arc(oe.x,oe.y,b.core("active-bg-size").pfValue/w,0,2*Math.PI),A.fill()}var K=s.lastRedrawTime;if(s.showFps&&K){K=Math.round(K);var ee=Math.round(1e3/K);A.setTransform(1,0,0,1,0,0),A.fillStyle="rgba(255, 0, 0, 0.75)",A.strokeStyle="rgba(255, 0, 0, 0.75)",A.lineWidth=1,A.fillText("1 frame = "+K+" ms = "+ee+" fps",0,20);var Q=60;A.strokeRect(0,30,250,20),A.fillRect(0,30,250*Math.min(ee/Q,1),20)}r||(h[s.SELECT_BOX]=!1)}if(d&&p!==1){var W=u.contexts[s.NODE],Y=s.data.bufferCanvases[s.MOTIONBLUR_BUFFER_NODE],Z=u.contexts[s.DRAG],se=s.data.bufferCanvases[s.MOTIONBLUR_BUFFER_DRAG],ce=function(te,Ne,ae){te.setTransform(1,0,0,1,0,0),ae||!x?te.clearRect(0,0,s.canvasWidth,s.canvasHeight):R(te,0,0,s.canvasWidth,s.canvasHeight);var we=p;te.drawImage(Ne,0,0,s.canvasWidth*we,s.canvasHeight*we,0,0,s.canvasWidth,s.canvasHeight)};(h[s.NODE]||z[s.NODE])&&(ce(W,Y,z[s.NODE]),h[s.NODE]=!1),(h[s.DRAG]||z[s.DRAG])&&(ce(Z,se,z[s.DRAG]),h[s.DRAG]=!1)}s.prevViewport=L,s.clearingMotionBlur&&(s.clearingMotionBlur=!1,s.motionBlurCleared=!0,s.motionBlur=!0),d&&(s.motionBlurTimeout=setTimeout(function(){s.motionBlurTimeout=null,s.clearedForMotionBlur[s.NODE]=!1,s.clearedForMotionBlur[s.DRAG]=!1,s.motionBlur=!1,s.clearingMotionBlur=!f,s.mbFrames=0,h[s.NODE]=!0,h[s.DRAG]=!0,s.redraw()},kXe)),e||l.emit("render")};Cf={};Cf.drawPolygonPath=function(t,e,r,n,i,a){var s=n/2,o=i/2;t.beginPath&&t.beginPath(),t.moveTo(e+s*a[0],r+o*a[1]);for(var l=1;l0&&s>0){p.clearRect(0,0,a,s),p.globalCompositeOperation="source-over";var g=this.getCachedZSortedEles();if(t.full)p.translate(-n.x1*u,-n.y1*u),p.scale(u,u),this.drawElements(p,g),p.scale(1/u,1/u),p.translate(n.x1*u,n.y1*u);else{var m=e.pan(),y={x:m.x*u,y:m.y*u};u*=e.zoom(),p.translate(y.x,y.y),p.scale(u,u),this.drawElements(p,g),p.scale(1/u,1/u),p.translate(-y.x,-y.y)}t.bg&&(p.globalCompositeOperation="destination-over",p.fillStyle=t.bg,p.rect(0,0,a,s),p.fill())}return d};Vx.png=function(t){return rpe(t,this.bufferCanvasImage(t),"image/png")};Vx.jpg=function(t){return rpe(t,this.bufferCanvasImage(t),"image/jpeg")};npe={};npe.nodeShapeImpl=function(t,e,r,n,i,a,s,o){switch(t){case"ellipse":return this.drawEllipsePath(e,r,n,i,a);case"polygon":return this.drawPolygonPath(e,r,n,i,a,s);case"round-polygon":return this.drawRoundPolygonPath(e,r,n,i,a,s,o);case"roundrectangle":case"round-rectangle":return this.drawRoundRectanglePath(e,r,n,i,a,o);case"cutrectangle":case"cut-rectangle":return this.drawCutRectanglePath(e,r,n,i,a,s,o);case"bottomroundrectangle":case"bottom-round-rectangle":return this.drawBottomRoundRectanglePath(e,r,n,i,a,o);case"barrel":return this.drawBarrelPath(e,r,n,i,a)}};EXe=ipe,Gr=ipe.prototype;Gr.CANVAS_LAYERS=3;Gr.SELECT_BOX=0;Gr.DRAG=1;Gr.NODE=2;Gr.BUFFER_COUNT=3;Gr.TEXTURE_BUFFER=0;Gr.MOTIONBLUR_BUFFER_NODE=1;Gr.MOTIONBLUR_BUFFER_DRAG=2;Gr.redrawHint=function(t,e){var r=this;switch(t){case"eles":r.data.canvasNeedsRedraw[Gr.NODE]=e;break;case"drag":r.data.canvasNeedsRedraw[Gr.DRAG]=e;break;case"select":r.data.canvasNeedsRedraw[Gr.SELECT_BOX]=e;break}};SXe=typeof Path2D<"u";Gr.path2dEnabled=function(t){if(t===void 0)return this.pathsEnabled;this.pathsEnabled=!!t};Gr.usePaths=function(){return SXe&&this.pathsEnabled};Gr.setImgSmoothing=function(t,e){t.imageSmoothingEnabled!=null?t.imageSmoothingEnabled=e:(t.webkitImageSmoothingEnabled=e,t.mozImageSmoothingEnabled=e,t.msImageSmoothingEnabled=e)};Gr.getImgSmoothing=function(t){return t.imageSmoothingEnabled!=null?t.imageSmoothingEnabled:t.webkitImageSmoothingEnabled||t.mozImageSmoothingEnabled||t.msImageSmoothingEnabled};Gr.makeOffscreenCanvas=function(t,e){var 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n(){}n.QUALITY=1,n.DEFAULT_CREATE_BENDS_AS_NEEDED=!1,n.DEFAULT_INCREMENTAL=!1,n.DEFAULT_ANIMATION_ON_LAYOUT=!0,n.DEFAULT_ANIMATION_DURING_LAYOUT=!1,n.DEFAULT_ANIMATION_PERIOD=50,n.DEFAULT_UNIFORM_LEAF_NODE_SIZES=!1,n.DEFAULT_GRAPH_MARGIN=15,n.NODE_DIMENSIONS_INCLUDE_LABELS=!1,n.SIMPLE_NODE_SIZE=40,n.SIMPLE_NODE_HALF_SIZE=n.SIMPLE_NODE_SIZE/2,n.EMPTY_COMPOUND_NODE_SIZE=40,n.MIN_EDGE_LENGTH=1,n.WORLD_BOUNDARY=1e6,n.INITIAL_WORLD_BOUNDARY=n.WORLD_BOUNDARY/1e3,n.WORLD_CENTER_X=1200,n.WORLD_CENTER_Y=900,t.exports=n},function(t,e,r){"use strict";var n=r(2),i=r(8),a=r(9);function s(l,u,h){n.call(this,h),this.isOverlapingSourceAndTarget=!1,this.vGraphObject=h,this.bendpoints=[],this.source=l,this.target=u}s.prototype=Object.create(n.prototype);for(var o in n)s[o]=n[o];s.prototype.getSource=function(){return this.source},s.prototype.getTarget=function(){return this.target},s.prototype.isInterGraph=function(){return this.isInterGraph},s.prototype.getLength=function(){return this.length},s.prototype.isOverlapingSourceAndTarget=function(){return this.isOverlapingSourceAndTarget},s.prototype.getBendpoints=function(){return this.bendpoints},s.prototype.getLca=function(){return this.lca},s.prototype.getSourceInLca=function(){return this.sourceInLca},s.prototype.getTargetInLca=function(){return this.targetInLca},s.prototype.getOtherEnd=function(l){if(this.source===l)return this.target;if(this.target===l)return this.source;throw"Node is not incident with this edge"},s.prototype.getOtherEndInGraph=function(l,u){for(var h=this.getOtherEnd(l),f=u.getGraphManager().getRoot();;){if(h.getOwner()==u)return h;if(h.getOwner()==f)break;h=h.getOwner().getParent()}return null},s.prototype.updateLength=function(){var l=new Array(4);this.isOverlapingSourceAndTarget=i.getIntersection(this.target.getRect(),this.source.getRect(),l),this.isOverlapingSourceAndTarget||(this.lengthX=l[0]-l[2],this.lengthY=l[1]-l[3],Math.abs(this.lengthX)<1&&(this.lengthX=a.sign(this.lengthX)),Math.abs(this.lengthY)<1&&(this.lengthY=a.sign(this.lengthY)),this.length=Math.sqrt(this.lengthX*this.lengthX+this.lengthY*this.lengthY))},s.prototype.updateLengthSimple=function(){this.lengthX=this.target.getCenterX()-this.source.getCenterX(),this.lengthY=this.target.getCenterY()-this.source.getCenterY(),Math.abs(this.lengthX)<1&&(this.lengthX=a.sign(this.lengthX)),Math.abs(this.lengthY)<1&&(this.lengthY=a.sign(this.lengthY)),this.length=Math.sqrt(this.lengthX*this.lengthX+this.lengthY*this.lengthY)},t.exports=s},function(t,e,r){"use strict";function n(i){this.vGraphObject=i}t.exports=n},function(t,e,r){"use strict";var n=r(2),i=r(10),a=r(13),s=r(0),o=r(16),l=r(4);function u(f,d,p,g){p==null&&g==null&&(g=d),n.call(this,g),f.graphManager!=null&&(f=f.graphManager),this.estimatedSize=i.MIN_VALUE,this.inclusionTreeDepth=i.MAX_VALUE,this.vGraphObject=g,this.edges=[],this.graphManager=f,p!=null&&d!=null?this.rect=new a(d.x,d.y,p.width,p.height):this.rect=new a}u.prototype=Object.create(n.prototype);for(var h in n)u[h]=n[h];u.prototype.getEdges=function(){return this.edges},u.prototype.getChild=function(){return this.child},u.prototype.getOwner=function(){return this.owner},u.prototype.getWidth=function(){return this.rect.width},u.prototype.setWidth=function(f){this.rect.width=f},u.prototype.getHeight=function(){return this.rect.height},u.prototype.setHeight=function(f){this.rect.height=f},u.prototype.getCenterX=function(){return this.rect.x+this.rect.width/2},u.prototype.getCenterY=function(){return this.rect.y+this.rect.height/2},u.prototype.getCenter=function(){return new l(this.rect.x+this.rect.width/2,this.rect.y+this.rect.height/2)},u.prototype.getLocation=function(){return new l(this.rect.x,this.rect.y)},u.prototype.getRect=function(){return this.rect},u.prototype.getDiagonal=function(){return Math.sqrt(this.rect.width*this.rect.width+this.rect.height*this.rect.height)},u.prototype.getHalfTheDiagonal=function(){return Math.sqrt(this.rect.height*this.rect.height+this.rect.width*this.rect.width)/2},u.prototype.setRect=function(f,d){this.rect.x=f.x,this.rect.y=f.y,this.rect.width=d.width,this.rect.height=d.height},u.prototype.setCenter=function(f,d){this.rect.x=f-this.rect.width/2,this.rect.y=d-this.rect.height/2},u.prototype.setLocation=function(f,d){this.rect.x=f,this.rect.y=d},u.prototype.moveBy=function(f,d){this.rect.x+=f,this.rect.y+=d},u.prototype.getEdgeListToNode=function(f){var d=[],p,g=this;return g.edges.forEach(function(m){if(m.target==f){if(m.source!=g)throw"Incorrect edge source!";d.push(m)}}),d},u.prototype.getEdgesBetween=function(f){var d=[],p,g=this;return g.edges.forEach(function(m){if(!(m.source==g||m.target==g))throw"Incorrect edge source and/or target";(m.target==f||m.source==f)&&d.push(m)}),d},u.prototype.getNeighborsList=function(){var f=new Set,d=this;return d.edges.forEach(function(p){if(p.source==d)f.add(p.target);else{if(p.target!=d)throw"Incorrect incidency!";f.add(p.source)}}),f},u.prototype.withChildren=function(){var f=new Set,d,p;if(f.add(this),this.child!=null)for(var g=this.child.getNodes(),m=0;md&&(this.rect.x-=(this.labelWidth-d)/2,this.setWidth(this.labelWidth)),this.labelHeight>p&&(this.labelPos=="center"?this.rect.y-=(this.labelHeight-p)/2:this.labelPos=="top"&&(this.rect.y-=this.labelHeight-p),this.setHeight(this.labelHeight))}}},u.prototype.getInclusionTreeDepth=function(){if(this.inclusionTreeDepth==i.MAX_VALUE)throw"assert failed";return this.inclusionTreeDepth},u.prototype.transform=function(f){var d=this.rect.x;d>s.WORLD_BOUNDARY?d=s.WORLD_BOUNDARY:d<-s.WORLD_BOUNDARY&&(d=-s.WORLD_BOUNDARY);var p=this.rect.y;p>s.WORLD_BOUNDARY?p=s.WORLD_BOUNDARY:p<-s.WORLD_BOUNDARY&&(p=-s.WORLD_BOUNDARY);var g=new l(d,p),m=f.inverseTransformPoint(g);this.setLocation(m.x,m.y)},u.prototype.getLeft=function(){return this.rect.x},u.prototype.getRight=function(){return this.rect.x+this.rect.width},u.prototype.getTop=function(){return this.rect.y},u.prototype.getBottom=function(){return this.rect.y+this.rect.height},u.prototype.getParent=function(){return this.owner==null?null:this.owner.getParent()},t.exports=u},function(t,e,r){"use strict";function n(i,a){i==null&&a==null?(this.x=0,this.y=0):(this.x=i,this.y=a)}n.prototype.getX=function(){return this.x},n.prototype.getY=function(){return this.y},n.prototype.setX=function(i){this.x=i},n.prototype.setY=function(i){this.y=i},n.prototype.getDifference=function(i){return new DimensionD(this.x-i.x,this.y-i.y)},n.prototype.getCopy=function(){return new n(this.x,this.y)},n.prototype.translate=function(i){return this.x+=i.width,this.y+=i.height,this},t.exports=n},function(t,e,r){"use strict";var n=r(2),i=r(10),a=r(0),s=r(6),o=r(3),l=r(1),u=r(13),h=r(12),f=r(11);function d(g,m,y){n.call(this,y),this.estimatedSize=i.MIN_VALUE,this.margin=a.DEFAULT_GRAPH_MARGIN,this.edges=[],this.nodes=[],this.isConnected=!1,this.parent=g,m!=null&&m instanceof s?this.graphManager=m:m!=null&&m instanceof Layout&&(this.graphManager=m.graphManager)}d.prototype=Object.create(n.prototype);for(var p in n)d[p]=n[p];d.prototype.getNodes=function(){return this.nodes},d.prototype.getEdges=function(){return this.edges},d.prototype.getGraphManager=function(){return this.graphManager},d.prototype.getParent=function(){return this.parent},d.prototype.getLeft=function(){return this.left},d.prototype.getRight=function(){return this.right},d.prototype.getTop=function(){return this.top},d.prototype.getBottom=function(){return this.bottom},d.prototype.isConnected=function(){return this.isConnected},d.prototype.add=function(g,m,y){if(m==null&&y==null){var x=g;if(this.graphManager==null)throw"Graph has no graph mgr!";if(this.getNodes().indexOf(x)>-1)throw"Node already in graph!";return x.owner=this,this.getNodes().push(x),x}else{var b=g;if(!(this.getNodes().indexOf(m)>-1&&this.getNodes().indexOf(y)>-1))throw"Source or target not in graph!";if(!(m.owner==y.owner&&m.owner==this))throw"Both owners must be this graph!";return m.owner!=y.owner?null:(b.source=m,b.target=y,b.isInterGraph=!1,this.getEdges().push(b),m.edges.push(b),y!=m&&y.edges.push(b),b)}},d.prototype.remove=function(g){var m=g;if(g instanceof o){if(m==null)throw"Node is null!";if(!(m.owner!=null&&m.owner==this))throw"Owner graph is invalid!";if(this.graphManager==null)throw"Owner graph manager is invalid!";for(var y=m.edges.slice(),x,b=y.length,w=0;w-1&&E>-1))throw"Source and/or target doesn't know this edge!";x.source.edges.splice(k,1),x.target!=x.source&&x.target.edges.splice(E,1);var _=x.source.owner.getEdges().indexOf(x);if(_==-1)throw"Not in owner's edge list!";x.source.owner.getEdges().splice(_,1)}},d.prototype.updateLeftTop=function(){for(var g=i.MAX_VALUE,m=i.MAX_VALUE,y,x,b,w=this.getNodes(),_=w.length,k=0;k<_;k++){var E=w[k];y=E.getTop(),x=E.getLeft(),g>y&&(g=y),m>x&&(m=x)}return g==i.MAX_VALUE?null:(w[0].getParent().paddingLeft!=null?b=w[0].getParent().paddingLeft:b=this.margin,this.left=m-b,this.top=g-b,new h(this.left,this.top))},d.prototype.updateBounds=function(g){for(var m=i.MAX_VALUE,y=-i.MAX_VALUE,x=i.MAX_VALUE,b=-i.MAX_VALUE,w,_,k,E,L,S=this.nodes,C=S.length,M=0;Mw&&(m=w),y<_&&(y=_),x>k&&(x=k),bw&&(m=w),y<_&&(y=_),x>k&&(x=k),b=this.nodes.length){var C=0;y.forEach(function(M){M.owner==g&&C++}),C==this.nodes.length&&(this.isConnected=!0)}},t.exports=d},function(t,e,r){"use strict";var n,i=r(1);function a(s){n=r(5),this.layout=s,this.graphs=[],this.edges=[]}a.prototype.addRoot=function(){var s=this.layout.newGraph(),o=this.layout.newNode(null),l=this.add(s,o);return this.setRootGraph(l),this.rootGraph},a.prototype.add=function(s,o,l,u,h){if(l==null&&u==null&&h==null){if(s==null)throw"Graph is null!";if(o==null)throw"Parent node is null!";if(this.graphs.indexOf(s)>-1)throw"Graph already in this graph mgr!";if(this.graphs.push(s),s.parent!=null)throw"Already has a parent!";if(o.child!=null)throw"Already has a child!";return s.parent=o,o.child=s,s}else{h=l,u=o,l=s;var f=u.getOwner(),d=h.getOwner();if(!(f!=null&&f.getGraphManager()==this))throw"Source not in this graph mgr!";if(!(d!=null&&d.getGraphManager()==this))throw"Target not in this graph mgr!";if(f==d)return l.isInterGraph=!1,f.add(l,u,h);if(l.isInterGraph=!0,l.source=u,l.target=h,this.edges.indexOf(l)>-1)throw"Edge already in inter-graph edge list!";if(this.edges.push(l),!(l.source!=null&&l.target!=null))throw"Edge source and/or target is null!";if(!(l.source.edges.indexOf(l)==-1&&l.target.edges.indexOf(l)==-1))throw"Edge already in source and/or target incidency list!";return l.source.edges.push(l),l.target.edges.push(l),l}},a.prototype.remove=function(s){if(s instanceof n){var o=s;if(o.getGraphManager()!=this)throw"Graph not in this graph mgr";if(!(o==this.rootGraph||o.parent!=null&&o.parent.graphManager==this))throw"Invalid parent node!";var l=[];l=l.concat(o.getEdges());for(var u,h=l.length,f=0;f=s.getRight()?o[0]+=Math.min(s.getX()-a.getX(),a.getRight()-s.getRight()):s.getX()<=a.getX()&&s.getRight()>=a.getRight()&&(o[0]+=Math.min(a.getX()-s.getX(),s.getRight()-a.getRight())),a.getY()<=s.getY()&&a.getBottom()>=s.getBottom()?o[1]+=Math.min(s.getY()-a.getY(),a.getBottom()-s.getBottom()):s.getY()<=a.getY()&&s.getBottom()>=a.getBottom()&&(o[1]+=Math.min(a.getY()-s.getY(),s.getBottom()-a.getBottom()));var h=Math.abs((s.getCenterY()-a.getCenterY())/(s.getCenterX()-a.getCenterX()));s.getCenterY()===a.getCenterY()&&s.getCenterX()===a.getCenterX()&&(h=1);var f=h*o[0],d=o[1]/h;o[0]f)return o[0]=l,o[1]=p,o[2]=h,o[3]=S,!1;if(uh)return o[0]=d,o[1]=u,o[2]=E,o[3]=f,!1;if(lh?(o[0]=m,o[1]=y,T=!0):(o[0]=g,o[1]=p,T=!0):A===N&&(l>h?(o[0]=d,o[1]=p,T=!0):(o[0]=x,o[1]=y,T=!0)),-D===N?h>l?(o[2]=L,o[3]=S,I=!0):(o[2]=E,o[3]=k,I=!0):D===N&&(h>l?(o[2]=_,o[3]=k,I=!0):(o[2]=C,o[3]=S,I=!0)),T&&I)return!1;if(l>h?u>f?(O=this.getCardinalDirection(A,N,4),B=this.getCardinalDirection(D,N,2)):(O=this.getCardinalDirection(-A,N,3),B=this.getCardinalDirection(-D,N,1)):u>f?(O=this.getCardinalDirection(-A,N,1),B=this.getCardinalDirection(-D,N,3)):(O=this.getCardinalDirection(A,N,2),B=this.getCardinalDirection(D,N,4)),!T)switch(O){case 1:$=p,P=l+-w/N,o[0]=P,o[1]=$;break;case 2:P=x,$=u+b*N,o[0]=P,o[1]=$;break;case 3:$=y,P=l+w/N,o[0]=P,o[1]=$;break;case 4:P=m,$=u+-b*N,o[0]=P,o[1]=$;break}if(!I)switch(B){case 1:H=k,z=h+-R/N,o[2]=z,o[3]=H;break;case 2:z=C,H=f+M*N,o[2]=z,o[3]=H;break;case 3:H=S,z=h+R/N,o[2]=z,o[3]=H;break;case 4:z=L,H=f+-M*N,o[2]=z,o[3]=H;break}}return!1},i.getCardinalDirection=function(a,s,o){return a>s?o:1+o%4},i.getIntersection=function(a,s,o,l){if(l==null)return this.getIntersection2(a,s,o);var u=a.x,h=a.y,f=s.x,d=s.y,p=o.x,g=o.y,m=l.x,y=l.y,x=void 0,b=void 0,w=void 0,_=void 0,k=void 0,E=void 0,L=void 0,S=void 0,C=void 0;return w=d-h,k=u-f,L=f*h-u*d,_=y-g,E=p-m,S=m*g-p*y,C=w*E-_*k,C===0?null:(x=(k*S-E*L)/C,b=(_*L-w*S)/C,new n(x,b))},i.angleOfVector=function(a,s,o,l){var u=void 0;return a!==o?(u=Math.atan((l-s)/(o-a)),o0?1:i<0?-1:0},n.floor=function(i){return i<0?Math.ceil(i):Math.floor(i)},n.ceil=function(i){return i<0?Math.floor(i):Math.ceil(i)},t.exports=n},function(t,e,r){"use strict";function n(){}n.MAX_VALUE=2147483647,n.MIN_VALUE=-2147483648,t.exports=n},function(t,e,r){"use strict";var n=function(){function u(h,f){for(var d=0;d"u"?"undefined":n(a);return a==null||s!="object"&&s!="function"},t.exports=i},function(t,e,r){"use strict";function n(p){if(Array.isArray(p)){for(var g=0,m=Array(p.length);g0&&g;){for(w.push(k[0]);w.length>0&&g;){var E=w[0];w.splice(0,1),b.add(E);for(var L=E.getEdges(),x=0;x-1&&k.splice(R,1)}b=new Set,_=new Map}}return p},d.prototype.createDummyNodesForBendpoints=function(p){for(var g=[],m=p.source,y=this.graphManager.calcLowestCommonAncestor(p.source,p.target),x=0;x0){for(var y=this.edgeToDummyNodes.get(m),x=0;x=0&&g.splice(S,1);var C=_.getNeighborsList();C.forEach(function(T){if(m.indexOf(T)<0){var I=y.get(T),A=I-1;A==1&&E.push(T),y.set(T,A)}})}m=m.concat(E),(g.length==1||g.length==2)&&(x=!0,b=g[0])}return b},d.prototype.setGraphManager=function(p){this.graphManager=p},t.exports=d},function(t,e,r){"use strict";function n(){}n.seed=1,n.x=0,n.nextDouble=function(){return n.x=Math.sin(n.seed++)*1e4,n.x-Math.floor(n.x)},t.exports=n},function(t,e,r){"use strict";var n=r(4);function i(a,s){this.lworldOrgX=0,this.lworldOrgY=0,this.ldeviceOrgX=0,this.ldeviceOrgY=0,this.lworldExtX=1,this.lworldExtY=1,this.ldeviceExtX=1,this.ldeviceExtY=1}i.prototype.getWorldOrgX=function(){return this.lworldOrgX},i.prototype.setWorldOrgX=function(a){this.lworldOrgX=a},i.prototype.getWorldOrgY=function(){return this.lworldOrgY},i.prototype.setWorldOrgY=function(a){this.lworldOrgY=a},i.prototype.getWorldExtX=function(){return this.lworldExtX},i.prototype.setWorldExtX=function(a){this.lworldExtX=a},i.prototype.getWorldExtY=function(){return this.lworldExtY},i.prototype.setWorldExtY=function(a){this.lworldExtY=a},i.prototype.getDeviceOrgX=function(){return this.ldeviceOrgX},i.prototype.setDeviceOrgX=function(a){this.ldeviceOrgX=a},i.prototype.getDeviceOrgY=function(){return this.ldeviceOrgY},i.prototype.setDeviceOrgY=function(a){this.ldeviceOrgY=a},i.prototype.getDeviceExtX=function(){return this.ldeviceExtX},i.prototype.setDeviceExtX=function(a){this.ldeviceExtX=a},i.prototype.getDeviceExtY=function(){return this.ldeviceExtY},i.prototype.setDeviceExtY=function(a){this.ldeviceExtY=a},i.prototype.transformX=function(a){var s=0,o=this.lworldExtX;return o!=0&&(s=this.ldeviceOrgX+(a-this.lworldOrgX)*this.ldeviceExtX/o),s},i.prototype.transformY=function(a){var s=0,o=this.lworldExtY;return o!=0&&(s=this.ldeviceOrgY+(a-this.lworldOrgY)*this.ldeviceExtY/o),s},i.prototype.inverseTransformX=function(a){var s=0,o=this.ldeviceExtX;return o!=0&&(s=this.lworldOrgX+(a-this.ldeviceOrgX)*this.lworldExtX/o),s},i.prototype.inverseTransformY=function(a){var s=0,o=this.ldeviceExtY;return o!=0&&(s=this.lworldOrgY+(a-this.ldeviceOrgY)*this.lworldExtY/o),s},i.prototype.inverseTransformPoint=function(a){var s=new n(this.inverseTransformX(a.x),this.inverseTransformY(a.y));return s},t.exports=i},function(t,e,r){"use strict";function n(f){if(Array.isArray(f)){for(var d=0,p=Array(f.length);da.ADAPTATION_LOWER_NODE_LIMIT&&(this.coolingFactor=Math.max(this.coolingFactor*a.COOLING_ADAPTATION_FACTOR,this.coolingFactor-(f-a.ADAPTATION_LOWER_NODE_LIMIT)/(a.ADAPTATION_UPPER_NODE_LIMIT-a.ADAPTATION_LOWER_NODE_LIMIT)*this.coolingFactor*(1-a.COOLING_ADAPTATION_FACTOR))),this.maxNodeDisplacement=a.MAX_NODE_DISPLACEMENT_INCREMENTAL):(f>a.ADAPTATION_LOWER_NODE_LIMIT?this.coolingFactor=Math.max(a.COOLING_ADAPTATION_FACTOR,1-(f-a.ADAPTATION_LOWER_NODE_LIMIT)/(a.ADAPTATION_UPPER_NODE_LIMIT-a.ADAPTATION_LOWER_NODE_LIMIT)*(1-a.COOLING_ADAPTATION_FACTOR)):this.coolingFactor=1,this.initialCoolingFactor=this.coolingFactor,this.maxNodeDisplacement=a.MAX_NODE_DISPLACEMENT),this.maxIterations=Math.max(this.getAllNodes().length*5,this.maxIterations),this.totalDisplacementThreshold=this.displacementThresholdPerNode*this.getAllNodes().length,this.repulsionRange=this.calcRepulsionRange()},u.prototype.calcSpringForces=function(){for(var f=this.getAllEdges(),d,p=0;p0&&arguments[0]!==void 0?arguments[0]:!0,d=arguments.length>1&&arguments[1]!==void 0?arguments[1]:!1,p,g,m,y,x=this.getAllNodes(),b;if(this.useFRGridVariant)for(this.totalIterations%a.GRID_CALCULATION_CHECK_PERIOD==1&&f&&this.updateGrid(),b=new Set,p=0;pw||b>w)&&(f.gravitationForceX=-this.gravityConstant*m,f.gravitationForceY=-this.gravityConstant*y)):(w=d.getEstimatedSize()*this.compoundGravityRangeFactor,(x>w||b>w)&&(f.gravitationForceX=-this.gravityConstant*m*this.compoundGravityConstant,f.gravitationForceY=-this.gravityConstant*y*this.compoundGravityConstant))},u.prototype.isConverged=function(){var f,d=!1;return this.totalIterations>this.maxIterations/3&&(d=Math.abs(this.totalDisplacement-this.oldTotalDisplacement)<2),f=this.totalDisplacement=x.length||w>=x[0].length)){for(var _=0;_u}}]),o}();t.exports=s},function(t,e,r){"use strict";var n=function(){function s(o,l){for(var u=0;u2&&arguments[2]!==void 0?arguments[2]:1,h=arguments.length>3&&arguments[3]!==void 0?arguments[3]:-1,f=arguments.length>4&&arguments[4]!==void 0?arguments[4]:-1;i(this,s),this.sequence1=o,this.sequence2=l,this.match_score=u,this.mismatch_penalty=h,this.gap_penalty=f,this.iMax=o.length+1,this.jMax=l.length+1,this.grid=new Array(this.iMax);for(var d=0;d=0;o--){var l=this.listeners[o];l.event===a&&l.callback===s&&this.listeners.splice(o,1)}},i.emit=function(a,s){for(var o=0;o{(function(e,r){typeof Hx=="object"&&typeof eO=="object"?eO.exports=r(JD()):typeof define=="function"&&define.amd?define(["layout-base"],r):typeof Hx=="object"?Hx.coseBase=r(JD()):e.coseBase=r(e.layoutBase)})(Hx,function(t){return function(e){var r={};function n(i){if(r[i])return r[i].exports;var a=r[i]={i,l:!1,exports:{}};return e[i].call(a.exports,a,a.exports,n),a.l=!0,a.exports}return n.m=e,n.c=r,n.i=function(i){return i},n.d=function(i,a,s){n.o(i,a)||Object.defineProperty(i,a,{configurable:!1,enumerable:!0,get:s})},n.n=function(i){var a=i&&i.__esModule?function(){return i.default}:function(){return i};return n.d(a,"a",a),a},n.o=function(i,a){return Object.prototype.hasOwnProperty.call(i,a)},n.p="",n(n.s=7)}([function(e,r){e.exports=t},function(e,r,n){"use strict";var i=n(0).FDLayoutConstants;function a(){}for(var s in i)a[s]=i[s];a.DEFAULT_USE_MULTI_LEVEL_SCALING=!1,a.DEFAULT_RADIAL_SEPARATION=i.DEFAULT_EDGE_LENGTH,a.DEFAULT_COMPONENT_SEPERATION=60,a.TILE=!0,a.TILING_PADDING_VERTICAL=10,a.TILING_PADDING_HORIZONTAL=10,a.TREE_REDUCTION_ON_INCREMENTAL=!1,e.exports=a},function(e,r,n){"use strict";var i=n(0).FDLayoutEdge;function a(o,l,u){i.call(this,o,l,u)}a.prototype=Object.create(i.prototype);for(var s in i)a[s]=i[s];e.exports=a},function(e,r,n){"use strict";var i=n(0).LGraph;function a(o,l,u){i.call(this,o,l,u)}a.prototype=Object.create(i.prototype);for(var s in i)a[s]=i[s];e.exports=a},function(e,r,n){"use strict";var i=n(0).LGraphManager;function a(o){i.call(this,o)}a.prototype=Object.create(i.prototype);for(var s in i)a[s]=i[s];e.exports=a},function(e,r,n){"use strict";var i=n(0).FDLayoutNode,a=n(0).IMath;function s(l,u,h,f){i.call(this,l,u,h,f)}s.prototype=Object.create(i.prototype);for(var o in i)s[o]=i[o];s.prototype.move=function(){var l=this.graphManager.getLayout();this.displacementX=l.coolingFactor*(this.springForceX+this.repulsionForceX+this.gravitationForceX)/this.noOfChildren,this.displacementY=l.coolingFactor*(this.springForceY+this.repulsionForceY+this.gravitationForceY)/this.noOfChildren,Math.abs(this.displacementX)>l.coolingFactor*l.maxNodeDisplacement&&(this.displacementX=l.coolingFactor*l.maxNodeDisplacement*a.sign(this.displacementX)),Math.abs(this.displacementY)>l.coolingFactor*l.maxNodeDisplacement&&(this.displacementY=l.coolingFactor*l.maxNodeDisplacement*a.sign(this.displacementY)),this.child==null?this.moveBy(this.displacementX,this.displacementY):this.child.getNodes().length==0?this.moveBy(this.displacementX,this.displacementY):this.propogateDisplacementToChildren(this.displacementX,this.displacementY),l.totalDisplacement+=Math.abs(this.displacementX)+Math.abs(this.displacementY),this.springForceX=0,this.springForceY=0,this.repulsionForceX=0,this.repulsionForceY=0,this.gravitationForceX=0,this.gravitationForceY=0,this.displacementX=0,this.displacementY=0},s.prototype.propogateDisplacementToChildren=function(l,u){for(var h=this.getChild().getNodes(),f,d=0;d0)this.positionNodesRadially(k);else{this.reduceTrees(),this.graphManager.resetAllNodesToApplyGravitation();var E=new Set(this.getAllNodes()),L=this.nodesWithGravity.filter(function(S){return E.has(S)});this.graphManager.setAllNodesToApplyGravitation(L),this.positionNodesRandomly()}}return this.initSpringEmbedder(),this.runSpringEmbedder(),!0},w.prototype.tick=function(){if(this.totalIterations++,this.totalIterations===this.maxIterations&&!this.isTreeGrowing&&!this.isGrowthFinished)if(this.prunedNodesAll.length>0)this.isTreeGrowing=!0;else return!0;if(this.totalIterations%h.CONVERGENCE_CHECK_PERIOD==0&&!this.isTreeGrowing&&!this.isGrowthFinished){if(this.isConverged())if(this.prunedNodesAll.length>0)this.isTreeGrowing=!0;else return!0;this.coolingCycle++,this.layoutQuality==0?this.coolingAdjuster=this.coolingCycle:this.layoutQuality==1&&(this.coolingAdjuster=this.coolingCycle/3),this.coolingFactor=Math.max(this.initialCoolingFactor-Math.pow(this.coolingCycle,Math.log(100*(this.initialCoolingFactor-this.finalTemperature))/Math.log(this.maxCoolingCycle))/100*this.coolingAdjuster,this.finalTemperature),this.animationPeriod=Math.ceil(this.initialAnimationPeriod*Math.sqrt(this.coolingFactor))}if(this.isTreeGrowing){if(this.growTreeIterations%10==0)if(this.prunedNodesAll.length>0){this.graphManager.updateBounds(),this.updateGrid(),this.growTree(this.prunedNodesAll),this.graphManager.resetAllNodesToApplyGravitation();var k=new Set(this.getAllNodes()),E=this.nodesWithGravity.filter(function(C){return k.has(C)});this.graphManager.setAllNodesToApplyGravitation(E),this.graphManager.updateBounds(),this.updateGrid(),this.coolingFactor=h.DEFAULT_COOLING_FACTOR_INCREMENTAL}else this.isTreeGrowing=!1,this.isGrowthFinished=!0;this.growTreeIterations++}if(this.isGrowthFinished){if(this.isConverged())return!0;this.afterGrowthIterations%10==0&&(this.graphManager.updateBounds(),this.updateGrid()),this.coolingFactor=h.DEFAULT_COOLING_FACTOR_INCREMENTAL*((100-this.afterGrowthIterations)/100),this.afterGrowthIterations++}var L=!this.isTreeGrowing&&!this.isGrowthFinished,S=this.growTreeIterations%10==1&&this.isTreeGrowing||this.afterGrowthIterations%10==1&&this.isGrowthFinished;return this.totalDisplacement=0,this.graphManager.updateBounds(),this.calcSpringForces(),this.calcRepulsionForces(L,S),this.calcGravitationalForces(),this.moveNodes(),this.animate(),!1},w.prototype.getPositionsData=function(){for(var k=this.graphManager.getAllNodes(),E={},L=0;L1){var T;for(T=0;TS&&(S=Math.floor(R.y)),M=Math.floor(R.x+u.DEFAULT_COMPONENT_SEPERATION)}this.transform(new p(f.WORLD_CENTER_X-R.x/2,f.WORLD_CENTER_Y-R.y/2))},w.radialLayout=function(k,E,L){var S=Math.max(this.maxDiagonalInTree(k),u.DEFAULT_RADIAL_SEPARATION);w.branchRadialLayout(E,null,0,359,0,S);var C=x.calculateBounds(k),M=new b;M.setDeviceOrgX(C.getMinX()),M.setDeviceOrgY(C.getMinY()),M.setWorldOrgX(L.x),M.setWorldOrgY(L.y);for(var R=0;R1;){var J=H[0];H.splice(0,1);var X=O.indexOf(J);X>=0&&O.splice(X,1),$--,B--}E!=null?z=(O.indexOf(H[0])+1)%$:z=0;for(var oe=Math.abs(S-L)/B,K=z;P!=B;K=++K%$){var ee=O[K].getOtherEnd(k);if(ee!=E){var Q=(L+P*oe)%360,W=(Q+oe)%360;w.branchRadialLayout(ee,k,Q,W,C+M,M),P++}}},w.maxDiagonalInTree=function(k){for(var E=m.MIN_VALUE,L=0;LE&&(E=C)}return E},w.prototype.calcRepulsionRange=function(){return 2*(this.level+1)*this.idealEdgeLength},w.prototype.groupZeroDegreeMembers=function(){var k=this,E={};this.memberGroups={},this.idToDummyNode={};for(var L=[],S=this.graphManager.getAllNodes(),C=0;C"u"&&(E[T]=[]),E[T]=E[T].concat(M)}Object.keys(E).forEach(function(I){if(E[I].length>1){var A="DummyCompound_"+I;k.memberGroups[A]=E[I];var D=E[I][0].getParent(),N=new o(k.graphManager);N.id=A,N.paddingLeft=D.paddingLeft||0,N.paddingRight=D.paddingRight||0,N.paddingBottom=D.paddingBottom||0,N.paddingTop=D.paddingTop||0,k.idToDummyNode[A]=N;var O=k.getGraphManager().add(k.newGraph(),N),B=D.getChild();B.add(N);for(var P=0;P=0;k--){var E=this.compoundOrder[k],L=E.id,S=E.paddingLeft,C=E.paddingTop;this.adjustLocations(this.tiledMemberPack[L],E.rect.x,E.rect.y,S,C)}},w.prototype.repopulateZeroDegreeMembers=function(){var k=this,E=this.tiledZeroDegreePack;Object.keys(E).forEach(function(L){var S=k.idToDummyNode[L],C=S.paddingLeft,M=S.paddingTop;k.adjustLocations(E[L],S.rect.x,S.rect.y,C,M)})},w.prototype.getToBeTiled=function(k){var E=k.id;if(this.toBeTiled[E]!=null)return this.toBeTiled[E];var L=k.getChild();if(L==null)return this.toBeTiled[E]=!1,!1;for(var S=L.getNodes(),C=0;C0)return this.toBeTiled[E]=!1,!1;if(M.getChild()==null){this.toBeTiled[M.id]=!1;continue}if(!this.getToBeTiled(M))return this.toBeTiled[E]=!1,!1}return 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k.getLogger().debug("Found nl-block"),31;break;case 3:return k.getLogger().debug("Found space-block"),29;break;case 4:k.getLogger().debug(".",E.yytext);break;case 5:k.getLogger().debug("_",E.yytext);break;case 6:return 5;case 7:return E.yytext=-1,28;break;case 8:return E.yytext=E.yytext.replace(/columns\s+/,""),k.getLogger().debug("COLUMNS (LEX)",E.yytext),28;break;case 9:this.pushState("md_string");break;case 10:return"MD_STR";case 11:this.popState();break;case 12:this.pushState("string");break;case 13:k.getLogger().debug("LEX: POPPING STR:",E.yytext),this.popState();break;case 14:return k.getLogger().debug("LEX: STR end:",E.yytext),"STR";break;case 15:return E.yytext=E.yytext.replace(/space\:/,""),k.getLogger().debug("SPACE NUM (LEX)",E.yytext),21;break;case 16:return E.yytext="1",k.getLogger().debug("COLUMNS (LEX)",E.yytext),21;break;case 17:return 43;case 18:return"LINKSTYLE";case 19:return"INTERPOLATE";case 20:return this.pushState("CLASSDEF"),40;break;case 21:return this.popState(),this.pushState("CLASSDEFID"),"DEFAULT_CLASSDEF_ID";break;case 22:return this.popState(),this.pushState("CLASSDEFID"),41;break;case 23:return this.popState(),42;break;case 24:return this.pushState("CLASS"),44;break;case 25:return this.popState(),this.pushState("CLASS_STYLE"),45;break;case 26:return this.popState(),46;break;case 27:return this.pushState("STYLE_STMNT"),47;break;case 28:return this.popState(),this.pushState("STYLE_DEFINITION"),48;break;case 29:return this.popState(),49;break;case 30:return this.pushState("acc_title"),"acc_title";break;case 31:return this.popState(),"acc_title_value";break;case 32:return this.pushState("acc_descr"),"acc_descr";break;case 33:return this.popState(),"acc_descr_value";break;case 34:this.pushState("acc_descr_multiline");break;case 35:this.popState();break;case 36:return"acc_descr_multiline_value";case 37:return 30;case 38:return this.popState(),k.getLogger().debug("Lex: (("),"NODE_DEND";break;case 39:return this.popState(),k.getLogger().debug("Lex: (("),"NODE_DEND";break;case 40:return this.popState(),k.getLogger().debug("Lex: ))"),"NODE_DEND";break;case 41:return this.popState(),k.getLogger().debug("Lex: (("),"NODE_DEND";break;case 42:return this.popState(),k.getLogger().debug("Lex: (("),"NODE_DEND";break;case 43:return this.popState(),k.getLogger().debug("Lex: (-"),"NODE_DEND";break;case 44:return this.popState(),k.getLogger().debug("Lex: -)"),"NODE_DEND";break;case 45:return this.popState(),k.getLogger().debug("Lex: (("),"NODE_DEND";break;case 46:return this.popState(),k.getLogger().debug("Lex: ]]"),"NODE_DEND";break;case 47:return this.popState(),k.getLogger().debug("Lex: ("),"NODE_DEND";break;case 48:return this.popState(),k.getLogger().debug("Lex: ])"),"NODE_DEND";break;case 49:return this.popState(),k.getLogger().debug("Lex: /]"),"NODE_DEND";break;case 50:return this.popState(),k.getLogger().debug("Lex: /]"),"NODE_DEND";break;case 51:return this.popState(),k.getLogger().debug("Lex: )]"),"NODE_DEND";break;case 52:return this.popState(),k.getLogger().debug("Lex: )"),"NODE_DEND";break;case 53:return this.popState(),k.getLogger().debug("Lex: ]>"),"NODE_DEND";break;case 54:return this.popState(),k.getLogger().debug("Lex: ]"),"NODE_DEND";break;case 55:return k.getLogger().debug("Lexa: -)"),this.pushState("NODE"),36;break;case 56:return k.getLogger().debug("Lexa: (-"),this.pushState("NODE"),36;break;case 57:return k.getLogger().debug("Lexa: ))"),this.pushState("NODE"),36;break;case 58:return k.getLogger().debug("Lexa: )"),this.pushState("NODE"),36;break;case 59:return k.getLogger().debug("Lex: ((("),this.pushState("NODE"),36;break;case 60:return k.getLogger().debug("Lexa: )"),this.pushState("NODE"),36;break;case 61:return k.getLogger().debug("Lexa: )"),this.pushState("NODE"),36;break;case 62:return k.getLogger().debug("Lexa: )"),this.pushState("NODE"),36;break;case 63:return k.getLogger().debug("Lexc: >"),this.pushState("NODE"),36;break;case 64:return k.getLogger().debug("Lexa: (["),this.pushState("NODE"),36;break;case 65:return k.getLogger().debug("Lexa: )"),this.pushState("NODE"),36;break;case 66:return this.pushState("NODE"),36;break;case 67:return this.pushState("NODE"),36;break;case 68:return this.pushState("NODE"),36;break;case 69:return this.pushState("NODE"),36;break;case 70:return this.pushState("NODE"),36;break;case 71:return this.pushState("NODE"),36;break;case 72:return this.pushState("NODE"),36;break;case 73:return k.getLogger().debug("Lexa: ["),this.pushState("NODE"),36;break;case 74:return this.pushState("BLOCK_ARROW"),k.getLogger().debug("LEX ARR START"),38;break;case 75:return k.getLogger().debug("Lex: NODE_ID",E.yytext),32;break;case 76:return k.getLogger().debug("Lex: EOF",E.yytext),8;break;case 77:this.pushState("md_string");break;case 78:this.pushState("md_string");break;case 79:return"NODE_DESCR";case 80:this.popState();break;case 81:k.getLogger().debug("Lex: Starting string"),this.pushState("string");break;case 82:k.getLogger().debug("LEX ARR: Starting string"),this.pushState("string");break;case 83:return k.getLogger().debug("LEX: NODE_DESCR:",E.yytext),"NODE_DESCR";break;case 84:k.getLogger().debug("LEX POPPING"),this.popState();break;case 85:k.getLogger().debug("Lex: =>BAE"),this.pushState("ARROW_DIR");break;case 86:return E.yytext=E.yytext.replace(/^,\s*/,""),k.getLogger().debug("Lex (right): dir:",E.yytext),"DIR";break;case 87:return E.yytext=E.yytext.replace(/^,\s*/,""),k.getLogger().debug("Lex (left):",E.yytext),"DIR";break;case 88:return E.yytext=E.yytext.replace(/^,\s*/,""),k.getLogger().debug("Lex (x):",E.yytext),"DIR";break;case 89:return E.yytext=E.yytext.replace(/^,\s*/,""),k.getLogger().debug("Lex (y):",E.yytext),"DIR";break;case 90:return E.yytext=E.yytext.replace(/^,\s*/,""),k.getLogger().debug("Lex (up):",E.yytext),"DIR";break;case 91:return E.yytext=E.yytext.replace(/^,\s*/,""),k.getLogger().debug("Lex (down):",E.yytext),"DIR";break;case 92:return E.yytext="]>",k.getLogger().debug("Lex (ARROW_DIR end):",E.yytext),this.popState(),this.popState(),"BLOCK_ARROW_END";break;case 93:return k.getLogger().debug("Lex: LINK","#"+E.yytext+"#"),15;break;case 94:return k.getLogger().debug("Lex: LINK",E.yytext),15;break;case 95:return k.getLogger().debug("Lex: LINK",E.yytext),15;break;case 96:return k.getLogger().debug("Lex: LINK",E.yytext),15;break;case 97:return k.getLogger().debug("Lex: START_LINK",E.yytext),this.pushState("LLABEL"),16;break;case 98:return k.getLogger().debug("Lex: START_LINK",E.yytext),this.pushState("LLABEL"),16;break;case 99:return k.getLogger().debug("Lex: START_LINK",E.yytext),this.pushState("LLABEL"),16;break;case 100:this.pushState("md_string");break;case 101:return k.getLogger().debug("Lex: Starting string"),this.pushState("string"),"LINK_LABEL";break;case 102:return this.popState(),k.getLogger().debug("Lex: LINK","#"+E.yytext+"#"),15;break;case 103:return this.popState(),k.getLogger().debug("Lex: LINK",E.yytext),15;break;case 104:return this.popState(),k.getLogger().debug("Lex: LINK",E.yytext),15;break;case 105:return k.getLogger().debug("Lex: COLON",E.yytext),E.yytext=E.yytext.slice(1),27;break}},"anonymous"),rules:[/^(?:block-beta\b)/,/^(?:block\s+)/,/^(?:block\n+)/,/^(?:block:)/,/^(?:[\s]+)/,/^(?:[\n]+)/,/^(?:((\u000D\u000A)|(\u000A)))/,/^(?:columns\s+auto\b)/,/^(?:columns\s+[\d]+)/,/^(?:["][`])/,/^(?:[^`"]+)/,/^(?:[`]["])/,/^(?:["])/,/^(?:["])/,/^(?:[^"]*)/,/^(?:space[:]\d+)/,/^(?:space\b)/,/^(?:default\b)/,/^(?:linkStyle\b)/,/^(?:interpolate\b)/,/^(?:classDef\s+)/,/^(?:DEFAULT\s+)/,/^(?:\w+\s+)/,/^(?:[^\n]*)/,/^(?:class\s+)/,/^(?:(\w+)+((,\s*\w+)*))/,/^(?:[^\n]*)/,/^(?:style\s+)/,/^(?:(\w+)+((,\s*\w+)*))/,/^(?:[^\n]*)/,/^(?:accTitle\s*:\s*)/,/^(?:(?!\n||)*[^\n]*)/,/^(?:accDescr\s*:\s*)/,/^(?:(?!\n||)*[^\n]*)/,/^(?:accDescr\s*\{\s*)/,/^(?:[\}])/,/^(?:[^\}]*)/,/^(?:end\b\s*)/,/^(?:\(\(\()/,/^(?:\)\)\))/,/^(?:[\)]\))/,/^(?:\}\})/,/^(?:\})/,/^(?:\(-)/,/^(?:-\))/,/^(?:\(\()/,/^(?:\]\])/,/^(?:\()/,/^(?:\]\))/,/^(?:\\\])/,/^(?:\/\])/,/^(?:\)\])/,/^(?:[\)])/,/^(?:\]>)/,/^(?:[\]])/,/^(?:-\))/,/^(?:\(-)/,/^(?:\)\))/,/^(?:\))/,/^(?:\(\(\()/,/^(?:\(\()/,/^(?:\{\{)/,/^(?:\{)/,/^(?:>)/,/^(?:\(\[)/,/^(?:\()/,/^(?:\[\[)/,/^(?:\[\|)/,/^(?:\[\()/,/^(?:\)\)\))/,/^(?:\[\\)/,/^(?:\[\/)/,/^(?:\[\\)/,/^(?:\[)/,/^(?:<\[)/,/^(?:[^\(\[\n\-\)\{\}\s\<\>:]+)/,/^(?:$)/,/^(?:["][`])/,/^(?:["][`])/,/^(?:[^`"]+)/,/^(?:[`]["])/,/^(?:["])/,/^(?:["])/,/^(?:[^"]+)/,/^(?:["])/,/^(?:\]>\s*\()/,/^(?:,?\s*right\s*)/,/^(?:,?\s*left\s*)/,/^(?:,?\s*x\s*)/,/^(?:,?\s*y\s*)/,/^(?:,?\s*up\s*)/,/^(?:,?\s*down\s*)/,/^(?:\)\s*)/,/^(?:\s*[xo<]?--+[-xo>]\s*)/,/^(?:\s*[xo<]?==+[=xo>]\s*)/,/^(?:\s*[xo<]?-?\.+-[xo>]?\s*)/,/^(?:\s*~~[\~]+\s*)/,/^(?:\s*[xo<]?--\s*)/,/^(?:\s*[xo<]?==\s*)/,/^(?:\s*[xo<]?-\.\s*)/,/^(?:["][`])/,/^(?:["])/,/^(?:\s*[xo<]?--+[-xo>]\s*)/,/^(?:\s*[xo<]?==+[=xo>]\s*)/,/^(?:\s*[xo<]?-?\.+-[xo>]?\s*)/,/^(?::\d+)/],conditions:{STYLE_DEFINITION:{rules:[29],inclusive:!1},STYLE_STMNT:{rules:[28],inclusive:!1},CLASSDEFID:{rules:[23],inclusive:!1},CLASSDEF:{rules:[21,22],inclusive:!1},CLASS_STYLE:{rules:[26],inclusive:!1},CLASS:{rules:[25],inclusive:!1},LLABEL:{rules:[100,101,102,103,104],inclusive:!1},ARROW_DIR:{rules:[86,87,88,89,90,91,92],inclusive:!1},BLOCK_ARROW:{rules:[77,82,85],inclusive:!1},NODE:{rules:[38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,78,81],inclusive:!1},md_string:{rules:[10,11,79,80],inclusive:!1},space:{rules:[],inclusive:!1},string:{rules:[13,14,83,84],inclusive:!1},acc_descr_multiline:{rules:[35,36],inclusive:!1},acc_descr:{rules:[33],inclusive:!1},acc_title:{rules:[31],inclusive:!1},INITIAL:{rules:[0,1,2,3,4,5,6,7,8,9,12,15,16,17,18,19,20,24,27,30,32,34,37,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,93,94,95,96,97,98,99,105],inclusive:!0}}};return w}();y.lexer=x;function b(){this.yy={}}return v(b,"Parser"),b.prototype=y,y.Parser=b,new b}();AO.parser=AO;fKe=AO,$l=new Map,IO=[],_O=new Map,Kpe="color",Zpe="fill",dKe="bgFill",age=",",pKe=pe(),xE=new Map,gKe=v(t=>Xe.sanitizeText(t,pKe),"sanitizeText"),mKe=v(function(t,e=""){let r=xE.get(t);r||(r={id:t,styles:[],textStyles:[]},xE.set(t,r)),e?.split(age).forEach(n=>{let i=n.replace(/([^;]*);/,"$1").trim();if(RegExp(Kpe).exec(n)){let s=i.replace(Zpe,dKe).replace(Kpe,Zpe);r.textStyles.push(s)}r.styles.push(i)})},"addStyleClass"),vKe=v(function(t,e=""){let r=$l.get(t);e!=null&&(r.styles=e.split(age))},"addStyle2Node"),yKe=v(function(t,e){t.split(",").forEach(function(r){let n=$l.get(r);if(n===void 0){let i=r.trim();n={id:i,type:"na",children:[]},$l.set(i,n)}n.classes||(n.classes=[]),n.classes.push(e)})},"setCssClass"),sge=v((t,e)=>{let r=t.flat(),n=[];for(let i of r){if(i.label&&(i.label=gKe(i.label)),i.type==="classDef"){mKe(i.id,i.css);continue}if(i.type==="applyClass"){yKe(i.id,i?.styleClass??"");continue}if(i.type==="applyStyles"){i?.stylesStr&&vKe(i.id,i?.stylesStr);continue}if(i.type==="column-setting")e.columns=i.columns??-1;else if(i.type==="edge"){let a=(_O.get(i.id)??0)+1;_O.set(i.id,a),i.id=a+"-"+i.id,IO.push(i)}else{i.label||(i.type==="composite"?i.label="":i.label=i.id);let a=$l.get(i.id);if(a===void 0?$l.set(i.id,i):(i.type!=="na"&&(a.type=i.type),i.label!==i.id&&(a.label=i.label)),i.children&&sge(i.children,i),i.type==="space"){let s=i.width??1;for(let o=0;o{re.debug("Clear called"),xr(),Kx={id:"root",type:"composite",children:[],columns:-1},$l=new Map([["root",Kx]]),MO=[],xE=new Map,IO=[],_O=new 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color: ${t.nodeTextColor||t.textColor}; } .cluster-label text { fill: ${t.titleColor}; } .cluster-label span,p { color: ${t.titleColor}; } .label text,span,p { fill: ${t.nodeTextColor||t.textColor}; color: ${t.nodeTextColor||t.textColor}; } .node rect, .node circle, .node ellipse, .node polygon, .node path { fill: ${t.mainBkg}; stroke: ${t.nodeBorder}; stroke-width: 1px; } .flowchart-label text { text-anchor: middle; } // .flowchart-label .text-outer-tspan { // text-anchor: middle; // } // .flowchart-label .text-inner-tspan { // text-anchor: start; // } .node .label { text-align: center; } .node.clickable { cursor: pointer; } .arrowheadPath { fill: ${t.arrowheadColor}; } .edgePath .path { stroke: ${t.lineColor}; stroke-width: 2.0px; } .flowchart-link { stroke: ${t.lineColor}; fill: none; } .edgeLabel { background-color: ${t.edgeLabelBackground}; rect { opacity: 0.5; background-color: ${t.edgeLabelBackground}; fill: ${t.edgeLabelBackground}; } text-align: center; } /* For html labels 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l(this.rect.x+this.rect.width/2,this.rect.y+this.rect.height/2)},u.prototype.getLocation=function(){return new l(this.rect.x,this.rect.y)},u.prototype.getRect=function(){return this.rect},u.prototype.getDiagonal=function(){return Math.sqrt(this.rect.width*this.rect.width+this.rect.height*this.rect.height)},u.prototype.getHalfTheDiagonal=function(){return Math.sqrt(this.rect.height*this.rect.height+this.rect.width*this.rect.width)/2},u.prototype.setRect=function(f,d){this.rect.x=f.x,this.rect.y=f.y,this.rect.width=d.width,this.rect.height=d.height},u.prototype.setCenter=function(f,d){this.rect.x=f-this.rect.width/2,this.rect.y=d-this.rect.height/2},u.prototype.setLocation=function(f,d){this.rect.x=f,this.rect.y=d},u.prototype.moveBy=function(f,d){this.rect.x+=f,this.rect.y+=d},u.prototype.getEdgeListToNode=function(f){var d=[],p,g=this;return g.edges.forEach(function(m){if(m.target==f){if(m.source!=g)throw"Incorrect edge 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g=this.child.getNodes(),m=0;md?(this.rect.x-=(this.labelWidth-d)/2,this.setWidth(this.labelWidth)):this.labelPosHorizontal=="right"&&this.setWidth(d+this.labelWidth)),this.labelHeight&&(this.labelPosVertical=="top"?(this.rect.y-=this.labelHeight,this.setHeight(p+this.labelHeight)):this.labelPosVertical=="center"&&this.labelHeight>p?(this.rect.y-=(this.labelHeight-p)/2,this.setHeight(this.labelHeight)):this.labelPosVertical=="bottom"&&this.setHeight(p+this.labelHeight))}}},u.prototype.getInclusionTreeDepth=function(){if(this.inclusionTreeDepth==i.MAX_VALUE)throw"assert failed";return this.inclusionTreeDepth},u.prototype.transform=function(f){var d=this.rect.x;d>s.WORLD_BOUNDARY?d=s.WORLD_BOUNDARY:d<-s.WORLD_BOUNDARY&&(d=-s.WORLD_BOUNDARY);var p=this.rect.y;p>s.WORLD_BOUNDARY?p=s.WORLD_BOUNDARY:p<-s.WORLD_BOUNDARY&&(p=-s.WORLD_BOUNDARY);var g=new l(d,p),m=f.inverseTransformPoint(g);this.setLocation(m.x,m.y)},u.prototype.getLeft=function(){return 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C=0;y.forEach(function(M){M.owner==g&&C++}),C==this.nodes.length&&(this.isConnected=!0)}},t.exports=d},function(t,e,r){"use strict";var n,i=r(1);function a(s){n=r(6),this.layout=s,this.graphs=[],this.edges=[]}a.prototype.addRoot=function(){var s=this.layout.newGraph(),o=this.layout.newNode(null),l=this.add(s,o);return this.setRootGraph(l),this.rootGraph},a.prototype.add=function(s,o,l,u,h){if(l==null&&u==null&&h==null){if(s==null)throw"Graph is null!";if(o==null)throw"Parent node is null!";if(this.graphs.indexOf(s)>-1)throw"Graph already in this graph mgr!";if(this.graphs.push(s),s.parent!=null)throw"Already has a parent!";if(o.child!=null)throw"Already has a child!";return s.parent=o,o.child=s,s}else{h=l,u=o,l=s;var f=u.getOwner(),d=h.getOwner();if(!(f!=null&&f.getGraphManager()==this))throw"Source not in this graph mgr!";if(!(d!=null&&d.getGraphManager()==this))throw"Target not in this graph mgr!";if(f==d)return l.isInterGraph=!1,f.add(l,u,h);if(l.isInterGraph=!0,l.source=u,l.target=h,this.edges.indexOf(l)>-1)throw"Edge already in inter-graph edge list!";if(this.edges.push(l),!(l.source!=null&&l.target!=null))throw"Edge source and/or target is null!";if(!(l.source.edges.indexOf(l)==-1&&l.target.edges.indexOf(l)==-1))throw"Edge already in source and/or target incidency list!";return l.source.edges.push(l),l.target.edges.push(l),l}},a.prototype.remove=function(s){if(s instanceof n){var o=s;if(o.getGraphManager()!=this)throw"Graph not in this graph mgr";if(!(o==this.rootGraph||o.parent!=null&&o.parent.graphManager==this))throw"Invalid parent node!";var l=[];l=l.concat(o.getEdges());for(var u,h=l.length,f=0;f=s.getRight()?o[0]+=Math.min(s.getX()-a.getX(),a.getRight()-s.getRight()):s.getX()<=a.getX()&&s.getRight()>=a.getRight()&&(o[0]+=Math.min(a.getX()-s.getX(),s.getRight()-a.getRight())),a.getY()<=s.getY()&&a.getBottom()>=s.getBottom()?o[1]+=Math.min(s.getY()-a.getY(),a.getBottom()-s.getBottom()):s.getY()<=a.getY()&&s.getBottom()>=a.getBottom()&&(o[1]+=Math.min(a.getY()-s.getY(),s.getBottom()-a.getBottom()));var h=Math.abs((s.getCenterY()-a.getCenterY())/(s.getCenterX()-a.getCenterX()));s.getCenterY()===a.getCenterY()&&s.getCenterX()===a.getCenterX()&&(h=1);var f=h*o[0],d=o[1]/h;o[0]f)return o[0]=l,o[1]=p,o[2]=h,o[3]=S,!1;if(uh)return o[0]=d,o[1]=u,o[2]=E,o[3]=f,!1;if(lh?(o[0]=m,o[1]=y,T=!0):(o[0]=g,o[1]=p,T=!0):A===N&&(l>h?(o[0]=d,o[1]=p,T=!0):(o[0]=x,o[1]=y,T=!0)),-D===N?h>l?(o[2]=L,o[3]=S,I=!0):(o[2]=E,o[3]=k,I=!0):D===N&&(h>l?(o[2]=_,o[3]=k,I=!0):(o[2]=C,o[3]=S,I=!0)),T&&I)return!1;if(l>h?u>f?(O=this.getCardinalDirection(A,N,4),B=this.getCardinalDirection(D,N,2)):(O=this.getCardinalDirection(-A,N,3),B=this.getCardinalDirection(-D,N,1)):u>f?(O=this.getCardinalDirection(-A,N,1),B=this.getCardinalDirection(-D,N,3)):(O=this.getCardinalDirection(A,N,2),B=this.getCardinalDirection(D,N,4)),!T)switch(O){case 1:$=p,P=l+-w/N,o[0]=P,o[1]=$;break;case 2:P=x,$=u+b*N,o[0]=P,o[1]=$;break;case 3:$=y,P=l+w/N,o[0]=P,o[1]=$;break;case 4:P=m,$=u+-b*N,o[0]=P,o[1]=$;break}if(!I)switch(B){case 1:H=k,z=h+-R/N,o[2]=z,o[3]=H;break;case 2:z=C,H=f+M*N,o[2]=z,o[3]=H;break;case 3:H=S,z=h+R/N,o[2]=z,o[3]=H;break;case 4:z=L,H=f+-M*N,o[2]=z,o[3]=H;break}}return!1},i.getCardinalDirection=function(a,s,o){return a>s?o:1+o%4},i.getIntersection=function(a,s,o,l){if(l==null)return this.getIntersection2(a,s,o);var u=a.x,h=a.y,f=s.x,d=s.y,p=o.x,g=o.y,m=l.x,y=l.y,x=void 0,b=void 0,w=void 0,_=void 0,k=void 0,E=void 0,L=void 0,S=void 0,C=void 0;return w=d-h,k=u-f,L=f*h-u*d,_=y-g,E=p-m,S=m*g-p*y,C=w*E-_*k,C===0?null:(x=(k*S-E*L)/C,b=(_*L-w*S)/C,new n(x,b))},i.angleOfVector=function(a,s,o,l){var u=void 0;return a!==o?(u=Math.atan((l-s)/(o-a)),o=0){var y=(-p+Math.sqrt(p*p-4*d*g))/(2*d),x=(-p-Math.sqrt(p*p-4*d*g))/(2*d),b=null;return y>=0&&y<=1?[y]:x>=0&&x<=1?[x]:b}else return null},i.HALF_PI=.5*Math.PI,i.ONE_AND_HALF_PI=1.5*Math.PI,i.TWO_PI=2*Math.PI,i.THREE_PI=3*Math.PI,t.exports=i},function(t,e,r){"use strict";function n(){}n.sign=function(i){return i>0?1:i<0?-1:0},n.floor=function(i){return i<0?Math.ceil(i):Math.floor(i)},n.ceil=function(i){return i<0?Math.floor(i):Math.ceil(i)},t.exports=n},function(t,e,r){"use strict";function n(){}n.MAX_VALUE=2147483647,n.MIN_VALUE=-2147483648,t.exports=n},function(t,e,r){"use strict";var n=function(){function u(h,f){for(var d=0;d"u"?"undefined":n(a);return a==null||s!="object"&&s!="function"},t.exports=i},function(t,e,r){"use strict";function n(p){if(Array.isArray(p)){for(var g=0,m=Array(p.length);g0&&g;){for(w.push(k[0]);w.length>0&&g;){var E=w[0];w.splice(0,1),b.add(E);for(var L=E.getEdges(),x=0;x-1&&k.splice(R,1)}b=new Set,_=new Map}}return p},d.prototype.createDummyNodesForBendpoints=function(p){for(var g=[],m=p.source,y=this.graphManager.calcLowestCommonAncestor(p.source,p.target),x=0;x0){for(var y=this.edgeToDummyNodes.get(m),x=0;x=0&&g.splice(S,1);var C=_.getNeighborsList();C.forEach(function(T){if(m.indexOf(T)<0){var I=y.get(T),A=I-1;A==1&&E.push(T),y.set(T,A)}})}m=m.concat(E),(g.length==1||g.length==2)&&(x=!0,b=g[0])}return b},d.prototype.setGraphManager=function(p){this.graphManager=p},t.exports=d},function(t,e,r){"use strict";function n(){}n.seed=1,n.x=0,n.nextDouble=function(){return n.x=Math.sin(n.seed++)*1e4,n.x-Math.floor(n.x)},t.exports=n},function(t,e,r){"use strict";var n=r(5);function i(a,s){this.lworldOrgX=0,this.lworldOrgY=0,this.ldeviceOrgX=0,this.ldeviceOrgY=0,this.lworldExtX=1,this.lworldExtY=1,this.ldeviceExtX=1,this.ldeviceExtY=1}i.prototype.getWorldOrgX=function(){return this.lworldOrgX},i.prototype.setWorldOrgX=function(a){this.lworldOrgX=a},i.prototype.getWorldOrgY=function(){return this.lworldOrgY},i.prototype.setWorldOrgY=function(a){this.lworldOrgY=a},i.prototype.getWorldExtX=function(){return this.lworldExtX},i.prototype.setWorldExtX=function(a){this.lworldExtX=a},i.prototype.getWorldExtY=function(){return this.lworldExtY},i.prototype.setWorldExtY=function(a){this.lworldExtY=a},i.prototype.getDeviceOrgX=function(){return this.ldeviceOrgX},i.prototype.setDeviceOrgX=function(a){this.ldeviceOrgX=a},i.prototype.getDeviceOrgY=function(){return this.ldeviceOrgY},i.prototype.setDeviceOrgY=function(a){this.ldeviceOrgY=a},i.prototype.getDeviceExtX=function(){return this.ldeviceExtX},i.prototype.setDeviceExtX=function(a){this.ldeviceExtX=a},i.prototype.getDeviceExtY=function(){return this.ldeviceExtY},i.prototype.setDeviceExtY=function(a){this.ldeviceExtY=a},i.prototype.transformX=function(a){var s=0,o=this.lworldExtX;return o!=0&&(s=this.ldeviceOrgX+(a-this.lworldOrgX)*this.ldeviceExtX/o),s},i.prototype.transformY=function(a){var s=0,o=this.lworldExtY;return o!=0&&(s=this.ldeviceOrgY+(a-this.lworldOrgY)*this.ldeviceExtY/o),s},i.prototype.inverseTransformX=function(a){var s=0,o=this.ldeviceExtX;return o!=0&&(s=this.lworldOrgX+(a-this.ldeviceOrgX)*this.lworldExtX/o),s},i.prototype.inverseTransformY=function(a){var s=0,o=this.ldeviceExtY;return o!=0&&(s=this.lworldOrgY+(a-this.ldeviceOrgY)*this.lworldExtY/o),s},i.prototype.inverseTransformPoint=function(a){var s=new n(this.inverseTransformX(a.x),this.inverseTransformY(a.y));return s},t.exports=i},function(t,e,r){"use strict";function n(f){if(Array.isArray(f)){for(var d=0,p=Array(f.length);da.ADAPTATION_LOWER_NODE_LIMIT&&(this.coolingFactor=Math.max(this.coolingFactor*a.COOLING_ADAPTATION_FACTOR,this.coolingFactor-(f-a.ADAPTATION_LOWER_NODE_LIMIT)/(a.ADAPTATION_UPPER_NODE_LIMIT-a.ADAPTATION_LOWER_NODE_LIMIT)*this.coolingFactor*(1-a.COOLING_ADAPTATION_FACTOR))),this.maxNodeDisplacement=a.MAX_NODE_DISPLACEMENT_INCREMENTAL):(f>a.ADAPTATION_LOWER_NODE_LIMIT?this.coolingFactor=Math.max(a.COOLING_ADAPTATION_FACTOR,1-(f-a.ADAPTATION_LOWER_NODE_LIMIT)/(a.ADAPTATION_UPPER_NODE_LIMIT-a.ADAPTATION_LOWER_NODE_LIMIT)*(1-a.COOLING_ADAPTATION_FACTOR)):this.coolingFactor=1,this.initialCoolingFactor=this.coolingFactor,this.maxNodeDisplacement=a.MAX_NODE_DISPLACEMENT),this.maxIterations=Math.max(this.getAllNodes().length*5,this.maxIterations),this.displacementThresholdPerNode=3*a.DEFAULT_EDGE_LENGTH/100,this.totalDisplacementThreshold=this.displacementThresholdPerNode*this.getAllNodes().length,this.repulsionRange=this.calcRepulsionRange()},u.prototype.calcSpringForces=function(){for(var f=this.getAllEdges(),d,p=0;p0&&arguments[0]!==void 0?arguments[0]:!0,d=arguments.length>1&&arguments[1]!==void 0?arguments[1]:!1,p,g,m,y,x=this.getAllNodes(),b;if(this.useFRGridVariant)for(this.totalIterations%a.GRID_CALCULATION_CHECK_PERIOD==1&&f&&this.updateGrid(),b=new Set,p=0;pw||b>w)&&(f.gravitationForceX=-this.gravityConstant*m,f.gravitationForceY=-this.gravityConstant*y)):(w=d.getEstimatedSize()*this.compoundGravityRangeFactor,(x>w||b>w)&&(f.gravitationForceX=-this.gravityConstant*m*this.compoundGravityConstant,f.gravitationForceY=-this.gravityConstant*y*this.compoundGravityConstant))},u.prototype.isConverged=function(){var f,d=!1;return this.totalIterations>this.maxIterations/3&&(d=Math.abs(this.totalDisplacement-this.oldTotalDisplacement)<2),f=this.totalDisplacement=x.length||w>=x[0].length)){for(var _=0;_u}}]),o}();t.exports=s},function(t,e,r){"use strict";function n(){}n.svd=function(i){this.U=null,this.V=null,this.s=null,this.m=0,this.n=0,this.m=i.length,this.n=i[0].length;var a=Math.min(this.m,this.n);this.s=function(ot){for(var et=[];ot-- >0;)et.push(0);return et}(Math.min(this.m+1,this.n)),this.U=function(ot){var et=function ht(bt){if(bt.length==0)return 0;for(var tt=[],_t=0;_t0;)et.push(0);return et}(this.n),o=function(ot){for(var et=[];ot-- >0;)et.push(0);return et}(this.m),l=!0,u=!0,h=Math.min(this.m-1,this.n),f=Math.max(0,Math.min(this.n-2,this.m)),d=0;d=0;N--)if(this.s[N]!==0){for(var O=N+1;O=0;X--){if(function(ot,et){return ot&&et}(X0;){var ue=void 0,te=void 0;for(ue=I-2;ue>=-1&&ue!==-1;ue--)if(Math.abs(s[ue])<=ce+se*(Math.abs(this.s[ue])+Math.abs(this.s[ue+1]))){s[ue]=0;break}if(ue===I-2)te=4;else{var Ne=void 0;for(Ne=I-1;Ne>=ue&&Ne!==ue;Ne--){var ae=(Ne!==I?Math.abs(s[Ne]):0)+(Ne!==ue+1?Math.abs(s[Ne-1]):0);if(Math.abs(this.s[Ne])<=ce+se*ae){this.s[Ne]=0;break}}Ne===ue?te=3:Ne===I-1?te=1:(te=2,ue=Ne)}switch(ue++,te){case 1:{var we=s[I-2];s[I-2]=0;for(var Ie=I-2;Ie>=ue;Ie--){var Ee=n.hypot(this.s[Ie],we),Oe=this.s[Ie]/Ee,De=we/Ee;if(this.s[Ie]=Ee,Ie!==ue&&(we=-De*s[Ie-1],s[Ie-1]=Oe*s[Ie-1]),u)for(var We=0;We=this.s[ue+1]);){var Ke=this.s[ue];if(this.s[ue]=this.s[ue+1],this.s[ue+1]=Ke,u&&ueMath.abs(a)?(s=a/i,s=Math.abs(i)*Math.sqrt(1+s*s)):a!=0?(s=i/a,s=Math.abs(a)*Math.sqrt(1+s*s)):s=0,s},t.exports=n},function(t,e,r){"use strict";var n=function(){function s(o,l){for(var u=0;u2&&arguments[2]!==void 0?arguments[2]:1,h=arguments.length>3&&arguments[3]!==void 0?arguments[3]:-1,f=arguments.length>4&&arguments[4]!==void 0?arguments[4]:-1;i(this,s),this.sequence1=o,this.sequence2=l,this.match_score=u,this.mismatch_penalty=h,this.gap_penalty=f,this.iMax=o.length+1,this.jMax=l.length+1,this.grid=new Array(this.iMax);for(var d=0;d=0;o--){var l=this.listeners[o];l.event===a&&l.callback===s&&this.listeners.splice(o,1)}},i.emit=function(a,s){for(var o=0;o{(function(e,r){typeof Qx=="object"&&typeof zO=="object"?zO.exports=r(FO()):typeof define=="function"&&define.amd?define(["layout-base"],r):typeof Qx=="object"?Qx.coseBase=r(FO()):e.coseBase=r(e.layoutBase)})(Qx,function(t){return(()=>{"use strict";var e={45:(a,s,o)=>{var l={};l.layoutBase=o(551),l.CoSEConstants=o(806),l.CoSEEdge=o(767),l.CoSEGraph=o(880),l.CoSEGraphManager=o(578),l.CoSELayout=o(765),l.CoSENode=o(991),l.ConstraintHandler=o(902),a.exports=l},806:(a,s,o)=>{var l=o(551).FDLayoutConstants;function u(){}for(var h in l)u[h]=l[h];u.DEFAULT_USE_MULTI_LEVEL_SCALING=!1,u.DEFAULT_RADIAL_SEPARATION=l.DEFAULT_EDGE_LENGTH,u.DEFAULT_COMPONENT_SEPERATION=60,u.TILE=!0,u.TILING_PADDING_VERTICAL=10,u.TILING_PADDING_HORIZONTAL=10,u.TRANSFORM_ON_CONSTRAINT_HANDLING=!0,u.ENFORCE_CONSTRAINTS=!0,u.APPLY_LAYOUT=!0,u.RELAX_MOVEMENT_ON_CONSTRAINTS=!0,u.TREE_REDUCTION_ON_INCREMENTAL=!0,u.PURE_INCREMENTAL=u.DEFAULT_INCREMENTAL,a.exports=u},767:(a,s,o)=>{var l=o(551).FDLayoutEdge;function u(f,d,p){l.call(this,f,d,p)}u.prototype=Object.create(l.prototype);for(var h in l)u[h]=l[h];a.exports=u},880:(a,s,o)=>{var l=o(551).LGraph;function u(f,d,p){l.call(this,f,d,p)}u.prototype=Object.create(l.prototype);for(var h in l)u[h]=l[h];a.exports=u},578:(a,s,o)=>{var l=o(551).LGraphManager;function u(f){l.call(this,f)}u.prototype=Object.create(l.prototype);for(var h in l)u[h]=l[h];a.exports=u},765:(a,s,o)=>{var l=o(551).FDLayout,u=o(578),h=o(880),f=o(991),d=o(767),p=o(806),g=o(902),m=o(551).FDLayoutConstants,y=o(551).LayoutConstants,x=o(551).Point,b=o(551).PointD,w=o(551).DimensionD,_=o(551).Layout,k=o(551).Integer,E=o(551).IGeometry,L=o(551).LGraph,S=o(551).Transform,C=o(551).LinkedList;function M(){l.call(this),this.toBeTiled={},this.constraints={}}M.prototype=Object.create(l.prototype);for(var R in l)M[R]=l[R];M.prototype.newGraphManager=function(){var T=new u(this);return this.graphManager=T,T},M.prototype.newGraph=function(T){return new h(null,this.graphManager,T)},M.prototype.newNode=function(T){return new f(this.graphManager,T)},M.prototype.newEdge=function(T){return new d(null,null,T)},M.prototype.initParameters=function(){l.prototype.initParameters.call(this,arguments),this.isSubLayout||(p.DEFAULT_EDGE_LENGTH<10?this.idealEdgeLength=10:this.idealEdgeLength=p.DEFAULT_EDGE_LENGTH,this.useSmartIdealEdgeLengthCalculation=p.DEFAULT_USE_SMART_IDEAL_EDGE_LENGTH_CALCULATION,this.gravityConstant=m.DEFAULT_GRAVITY_STRENGTH,this.compoundGravityConstant=m.DEFAULT_COMPOUND_GRAVITY_STRENGTH,this.gravityRangeFactor=m.DEFAULT_GRAVITY_RANGE_FACTOR,this.compoundGravityRangeFactor=m.DEFAULT_COMPOUND_GRAVITY_RANGE_FACTOR,this.prunedNodesAll=[],this.growTreeIterations=0,this.afterGrowthIterations=0,this.isTreeGrowing=!1,this.isGrowthFinished=!1)},M.prototype.initSpringEmbedder=function(){l.prototype.initSpringEmbedder.call(this),this.coolingCycle=0,this.maxCoolingCycle=this.maxIterations/m.CONVERGENCE_CHECK_PERIOD,this.finalTemperature=.04,this.coolingAdjuster=1},M.prototype.layout=function(){var T=y.DEFAULT_CREATE_BENDS_AS_NEEDED;return T&&(this.createBendpoints(),this.graphManager.resetAllEdges()),this.level=0,this.classicLayout()},M.prototype.classicLayout=function(){if(this.nodesWithGravity=this.calculateNodesToApplyGravitationTo(),this.graphManager.setAllNodesToApplyGravitation(this.nodesWithGravity),this.calcNoOfChildrenForAllNodes(),this.graphManager.calcLowestCommonAncestors(),this.graphManager.calcInclusionTreeDepths(),this.graphManager.getRoot().calcEstimatedSize(),this.calcIdealEdgeLengths(),this.incremental){if(p.TREE_REDUCTION_ON_INCREMENTAL){this.reduceTrees(),this.graphManager.resetAllNodesToApplyGravitation();var I=new Set(this.getAllNodes()),A=this.nodesWithGravity.filter(function(O){return I.has(O)});this.graphManager.setAllNodesToApplyGravitation(A)}}else{var T=this.getFlatForest();if(T.length>0)this.positionNodesRadially(T);else{this.reduceTrees(),this.graphManager.resetAllNodesToApplyGravitation();var I=new Set(this.getAllNodes()),A=this.nodesWithGravity.filter(function(D){return I.has(D)});this.graphManager.setAllNodesToApplyGravitation(A),this.positionNodesRandomly()}}return Object.keys(this.constraints).length>0&&(g.handleConstraints(this),this.initConstraintVariables()),this.initSpringEmbedder(),p.APPLY_LAYOUT&&this.runSpringEmbedder(),!0},M.prototype.tick=function(){if(this.totalIterations++,this.totalIterations===this.maxIterations&&!this.isTreeGrowing&&!this.isGrowthFinished)if(this.prunedNodesAll.length>0)this.isTreeGrowing=!0;else return!0;if(this.totalIterations%m.CONVERGENCE_CHECK_PERIOD==0&&!this.isTreeGrowing&&!this.isGrowthFinished){if(this.isConverged())if(this.prunedNodesAll.length>0)this.isTreeGrowing=!0;else return!0;this.coolingCycle++,this.layoutQuality==0?this.coolingAdjuster=this.coolingCycle:this.layoutQuality==1&&(this.coolingAdjuster=this.coolingCycle/3),this.coolingFactor=Math.max(this.initialCoolingFactor-Math.pow(this.coolingCycle,Math.log(100*(this.initialCoolingFactor-this.finalTemperature))/Math.log(this.maxCoolingCycle))/100*this.coolingAdjuster,this.finalTemperature),this.animationPeriod=Math.ceil(this.initialAnimationPeriod*Math.sqrt(this.coolingFactor))}if(this.isTreeGrowing){if(this.growTreeIterations%10==0)if(this.prunedNodesAll.length>0){this.graphManager.updateBounds(),this.updateGrid(),this.growTree(this.prunedNodesAll),this.graphManager.resetAllNodesToApplyGravitation();var T=new Set(this.getAllNodes()),I=this.nodesWithGravity.filter(function(N){return T.has(N)});this.graphManager.setAllNodesToApplyGravitation(I),this.graphManager.updateBounds(),this.updateGrid(),p.PURE_INCREMENTAL?this.coolingFactor=m.DEFAULT_COOLING_FACTOR_INCREMENTAL/2:this.coolingFactor=m.DEFAULT_COOLING_FACTOR_INCREMENTAL}else this.isTreeGrowing=!1,this.isGrowthFinished=!0;this.growTreeIterations++}if(this.isGrowthFinished){if(this.isConverged())return!0;this.afterGrowthIterations%10==0&&(this.graphManager.updateBounds(),this.updateGrid()),p.PURE_INCREMENTAL?this.coolingFactor=m.DEFAULT_COOLING_FACTOR_INCREMENTAL/2*((100-this.afterGrowthIterations)/100):this.coolingFactor=m.DEFAULT_COOLING_FACTOR_INCREMENTAL*((100-this.afterGrowthIterations)/100),this.afterGrowthIterations++}var A=!this.isTreeGrowing&&!this.isGrowthFinished,D=this.growTreeIterations%10==1&&this.isTreeGrowing||this.afterGrowthIterations%10==1&&this.isGrowthFinished;return this.totalDisplacement=0,this.graphManager.updateBounds(),this.calcSpringForces(),this.calcRepulsionForces(A,D),this.calcGravitationalForces(),this.moveNodes(),this.animate(),!1},M.prototype.getPositionsData=function(){for(var T=this.graphManager.getAllNodes(),I={},A=0;A0&&this.updateDisplacements();for(var A=0;A0&&(D.fixedNodeWeight=O)}}if(this.constraints.relativePlacementConstraint){var B=new Map,P=new Map;if(this.dummyToNodeForVerticalAlignment=new Map,this.dummyToNodeForHorizontalAlignment=new Map,this.fixedNodesOnHorizontal=new Set,this.fixedNodesOnVertical=new Set,this.fixedNodeSet.forEach(function(ee){T.fixedNodesOnHorizontal.add(ee),T.fixedNodesOnVertical.add(ee)}),this.constraints.alignmentConstraint){if(this.constraints.alignmentConstraint.vertical)for(var $=this.constraints.alignmentConstraint.vertical,A=0;A<$.length;A++)this.dummyToNodeForVerticalAlignment.set("dummy"+A,[]),$[A].forEach(function(Q){B.set(Q,"dummy"+A),T.dummyToNodeForVerticalAlignment.get("dummy"+A).push(Q),T.fixedNodeSet.has(Q)&&T.fixedNodesOnHorizontal.add("dummy"+A)});if(this.constraints.alignmentConstraint.horizontal)for(var z=this.constraints.alignmentConstraint.horizontal,A=0;A=2*ee.length/3;Y--)Q=Math.floor(Math.random()*(Y+1)),W=ee[Y],ee[Y]=ee[Q],ee[Q]=W;return ee},this.nodesInRelativeHorizontal=[],this.nodesInRelativeVertical=[],this.nodeToRelativeConstraintMapHorizontal=new Map,this.nodeToRelativeConstraintMapVertical=new Map,this.nodeToTempPositionMapHorizontal=new Map,this.nodeToTempPositionMapVertical=new Map,this.constraints.relativePlacementConstraint.forEach(function(ee){if(ee.left){var Q=B.has(ee.left)?B.get(ee.left):ee.left,W=B.has(ee.right)?B.get(ee.right):ee.right;T.nodesInRelativeHorizontal.includes(Q)||(T.nodesInRelativeHorizontal.push(Q),T.nodeToRelativeConstraintMapHorizontal.set(Q,[]),T.dummyToNodeForVerticalAlignment.has(Q)?T.nodeToTempPositionMapHorizontal.set(Q,T.idToNodeMap.get(T.dummyToNodeForVerticalAlignment.get(Q)[0]).getCenterX()):T.nodeToTempPositionMapHorizontal.set(Q,T.idToNodeMap.get(Q).getCenterX())),T.nodesInRelativeHorizontal.includes(W)||(T.nodesInRelativeHorizontal.push(W),T.nodeToRelativeConstraintMapHorizontal.set(W,[]),T.dummyToNodeForVerticalAlignment.has(W)?T.nodeToTempPositionMapHorizontal.set(W,T.idToNodeMap.get(T.dummyToNodeForVerticalAlignment.get(W)[0]).getCenterX()):T.nodeToTempPositionMapHorizontal.set(W,T.idToNodeMap.get(W).getCenterX())),T.nodeToRelativeConstraintMapHorizontal.get(Q).push({right:W,gap:ee.gap}),T.nodeToRelativeConstraintMapHorizontal.get(W).push({left:Q,gap:ee.gap})}else{var Y=P.has(ee.top)?P.get(ee.top):ee.top,Z=P.has(ee.bottom)?P.get(ee.bottom):ee.bottom;T.nodesInRelativeVertical.includes(Y)||(T.nodesInRelativeVertical.push(Y),T.nodeToRelativeConstraintMapVertical.set(Y,[]),T.dummyToNodeForHorizontalAlignment.has(Y)?T.nodeToTempPositionMapVertical.set(Y,T.idToNodeMap.get(T.dummyToNodeForHorizontalAlignment.get(Y)[0]).getCenterY()):T.nodeToTempPositionMapVertical.set(Y,T.idToNodeMap.get(Y).getCenterY())),T.nodesInRelativeVertical.includes(Z)||(T.nodesInRelativeVertical.push(Z),T.nodeToRelativeConstraintMapVertical.set(Z,[]),T.dummyToNodeForHorizontalAlignment.has(Z)?T.nodeToTempPositionMapVertical.set(Z,T.idToNodeMap.get(T.dummyToNodeForHorizontalAlignment.get(Z)[0]).getCenterY()):T.nodeToTempPositionMapVertical.set(Z,T.idToNodeMap.get(Z).getCenterY())),T.nodeToRelativeConstraintMapVertical.get(Y).push({bottom:Z,gap:ee.gap}),T.nodeToRelativeConstraintMapVertical.get(Z).push({top:Y,gap:ee.gap})}});else{var H=new Map,J=new Map;this.constraints.relativePlacementConstraint.forEach(function(ee){if(ee.left){var Q=B.has(ee.left)?B.get(ee.left):ee.left,W=B.has(ee.right)?B.get(ee.right):ee.right;H.has(Q)?H.get(Q).push(W):H.set(Q,[W]),H.has(W)?H.get(W).push(Q):H.set(W,[Q])}else{var Y=P.has(ee.top)?P.get(ee.top):ee.top,Z=P.has(ee.bottom)?P.get(ee.bottom):ee.bottom;J.has(Y)?J.get(Y).push(Z):J.set(Y,[Z]),J.has(Z)?J.get(Z).push(Y):J.set(Z,[Y])}});var X=function(Q,W){var Y=[],Z=[],se=new C,ce=new Set,ue=0;return Q.forEach(function(te,Ne){if(!ce.has(Ne)){Y[ue]=[],Z[ue]=!1;var ae=Ne;for(se.push(ae),ce.add(ae),Y[ue].push(ae);se.length!=0;){ae=se.shift(),W.has(ae)&&(Z[ue]=!0);var we=Q.get(ae);we.forEach(function(Ie){ce.has(Ie)||(se.push(Ie),ce.add(Ie),Y[ue].push(Ie))})}ue++}}),{components:Y,isFixed:Z}},oe=X(H,T.fixedNodesOnHorizontal);this.componentsOnHorizontal=oe.components,this.fixedComponentsOnHorizontal=oe.isFixed;var K=X(J,T.fixedNodesOnVertical);this.componentsOnVertical=K.components,this.fixedComponentsOnVertical=K.isFixed}}},M.prototype.updateDisplacements=function(){var T=this;if(this.constraints.fixedNodeConstraint&&this.constraints.fixedNodeConstraint.forEach(function(K){var ee=T.idToNodeMap.get(K.nodeId);ee.displacementX=0,ee.displacementY=0}),this.constraints.alignmentConstraint){if(this.constraints.alignmentConstraint.vertical)for(var I=this.constraints.alignmentConstraint.vertical,A=0;A1){var P;for(P=0;PD&&(D=Math.floor(B.y)),O=Math.floor(B.x+p.DEFAULT_COMPONENT_SEPERATION)}this.transform(new b(y.WORLD_CENTER_X-B.x/2,y.WORLD_CENTER_Y-B.y/2))},M.radialLayout=function(T,I,A){var D=Math.max(this.maxDiagonalInTree(T),p.DEFAULT_RADIAL_SEPARATION);M.branchRadialLayout(I,null,0,359,0,D);var N=L.calculateBounds(T),O=new S;O.setDeviceOrgX(N.getMinX()),O.setDeviceOrgY(N.getMinY()),O.setWorldOrgX(A.x),O.setWorldOrgY(A.y);for(var B=0;B1;){var Y=W[0];W.splice(0,1);var Z=X.indexOf(Y);Z>=0&&X.splice(Z,1),ee--,oe--}I!=null?Q=(X.indexOf(W[0])+1)%ee:Q=0;for(var se=Math.abs(D-A)/oe,ce=Q;K!=oe;ce=++ce%ee){var ue=X[ce].getOtherEnd(T);if(ue!=I){var te=(A+K*se)%360,Ne=(te+se)%360;M.branchRadialLayout(ue,T,te,Ne,N+O,O),K++}}},M.maxDiagonalInTree=function(T){for(var I=k.MIN_VALUE,A=0;AI&&(I=N)}return I},M.prototype.calcRepulsionRange=function(){return 2*(this.level+1)*this.idealEdgeLength},M.prototype.groupZeroDegreeMembers=function(){var T=this,I={};this.memberGroups={},this.idToDummyNode={};for(var A=[],D=this.graphManager.getAllNodes(),N=0;N"u"&&(I[P]=[]),I[P]=I[P].concat(O)}Object.keys(I).forEach(function($){if(I[$].length>1){var z="DummyCompound_"+$;T.memberGroups[z]=I[$];var H=I[$][0].getParent(),J=new f(T.graphManager);J.id=z,J.paddingLeft=H.paddingLeft||0,J.paddingRight=H.paddingRight||0,J.paddingBottom=H.paddingBottom||0,J.paddingTop=H.paddingTop||0,T.idToDummyNode[z]=J;var X=T.getGraphManager().add(T.newGraph(),J),oe=H.getChild();oe.add(J);for(var K=0;KN?(D.rect.x-=(D.labelWidth-N)/2,D.setWidth(D.labelWidth),D.labelMarginLeft=(D.labelWidth-N)/2):D.labelPosHorizontal=="right"&&D.setWidth(N+D.labelWidth)),D.labelHeight&&(D.labelPosVertical=="top"?(D.rect.y-=D.labelHeight,D.setHeight(O+D.labelHeight),D.labelMarginTop=D.labelHeight):D.labelPosVertical=="center"&&D.labelHeight>O?(D.rect.y-=(D.labelHeight-O)/2,D.setHeight(D.labelHeight),D.labelMarginTop=(D.labelHeight-O)/2):D.labelPosVertical=="bottom"&&D.setHeight(O+D.labelHeight))}})},M.prototype.repopulateCompounds=function(){for(var T=this.compoundOrder.length-1;T>=0;T--){var I=this.compoundOrder[T],A=I.id,D=I.paddingLeft,N=I.paddingTop,O=I.labelMarginLeft,B=I.labelMarginTop;this.adjustLocations(this.tiledMemberPack[A],I.rect.x,I.rect.y,D,N,O,B)}},M.prototype.repopulateZeroDegreeMembers=function(){var T=this,I=this.tiledZeroDegreePack;Object.keys(I).forEach(function(A){var D=T.idToDummyNode[A],N=D.paddingLeft,O=D.paddingTop,B=D.labelMarginLeft,P=D.labelMarginTop;T.adjustLocations(I[A],D.rect.x,D.rect.y,N,O,B,P)})},M.prototype.getToBeTiled=function(T){var I=T.id;if(this.toBeTiled[I]!=null)return this.toBeTiled[I];var A=T.getChild();if(A==null)return this.toBeTiled[I]=!1,!1;for(var D=A.getNodes(),N=0;N0)return this.toBeTiled[I]=!1,!1;if(O.getChild()==null){this.toBeTiled[O.id]=!1;continue}if(!this.getToBeTiled(O))return this.toBeTiled[I]=!1,!1}return this.toBeTiled[I]=!0,!0},M.prototype.getNodeDegree=function(T){for(var I=T.id,A=T.getEdges(),D=0,N=0;NH&&(H=X.rect.height)}A+=H+T.verticalPadding}},M.prototype.tileCompoundMembers=function(T,I){var A=this;this.tiledMemberPack=[],Object.keys(T).forEach(function(D){var N=I[D];if(A.tiledMemberPack[D]=A.tileNodes(T[D],N.paddingLeft+N.paddingRight),N.rect.width=A.tiledMemberPack[D].width,N.rect.height=A.tiledMemberPack[D].height,N.setCenter(A.tiledMemberPack[D].centerX,A.tiledMemberPack[D].centerY),N.labelMarginLeft=0,N.labelMarginTop=0,p.NODE_DIMENSIONS_INCLUDE_LABELS){var O=N.rect.width,B=N.rect.height;N.labelWidth&&(N.labelPosHorizontal=="left"?(N.rect.x-=N.labelWidth,N.setWidth(O+N.labelWidth),N.labelMarginLeft=N.labelWidth):N.labelPosHorizontal=="center"&&N.labelWidth>O?(N.rect.x-=(N.labelWidth-O)/2,N.setWidth(N.labelWidth),N.labelMarginLeft=(N.labelWidth-O)/2):N.labelPosHorizontal=="right"&&N.setWidth(O+N.labelWidth)),N.labelHeight&&(N.labelPosVertical=="top"?(N.rect.y-=N.labelHeight,N.setHeight(B+N.labelHeight),N.labelMarginTop=N.labelHeight):N.labelPosVertical=="center"&&N.labelHeight>B?(N.rect.y-=(N.labelHeight-B)/2,N.setHeight(N.labelHeight),N.labelMarginTop=(N.labelHeight-B)/2):N.labelPosVertical=="bottom"&&N.setHeight(B+N.labelHeight))}})},M.prototype.tileNodes=function(T,I){var A=this.tileNodesByFavoringDim(T,I,!0),D=this.tileNodesByFavoringDim(T,I,!1),N=this.getOrgRatio(A),O=this.getOrgRatio(D),B;return OP&&(P=K.getWidth())});var $=O/N,z=B/N,H=Math.pow(A-D,2)+4*($+D)*(z+A)*N,J=(D-A+Math.sqrt(H))/(2*($+D)),X;I?(X=Math.ceil(J),X==J&&X++):X=Math.floor(J);var oe=X*($+D)-D;return P>oe&&(oe=P),oe+=D*2,oe},M.prototype.tileNodesByFavoringDim=function(T,I,A){var D=p.TILING_PADDING_VERTICAL,N=p.TILING_PADDING_HORIZONTAL,O=p.TILING_COMPARE_BY,B={rows:[],rowWidth:[],rowHeight:[],width:0,height:I,verticalPadding:D,horizontalPadding:N,centerX:0,centerY:0};O&&(B.idealRowWidth=this.calcIdealRowWidth(T,A));var P=function(ee){return ee.rect.width*ee.rect.height},$=function(ee,Q){return P(Q)-P(ee)};T.sort(function(K,ee){var Q=$;return B.idealRowWidth?(Q=O,Q(K.id,ee.id)):Q(K,ee)});for(var z=0,H=0,J=0;J0&&(B+=T.horizontalPadding),T.rowWidth[A]=B,T.width0&&(P+=T.verticalPadding);var $=0;P>T.rowHeight[A]&&($=T.rowHeight[A],T.rowHeight[A]=P,$=T.rowHeight[A]-$),T.height+=$,T.rows[A].push(I)},M.prototype.getShortestRowIndex=function(T){for(var I=-1,A=Number.MAX_VALUE,D=0;DA&&(I=D,A=T.rowWidth[D]);return I},M.prototype.canAddHorizontal=function(T,I,A){if(T.idealRowWidth){var D=T.rows.length-1,N=T.rowWidth[D];return N+I+T.horizontalPadding<=T.idealRowWidth}var O=this.getShortestRowIndex(T);if(O<0)return!0;var B=T.rowWidth[O];if(B+T.horizontalPadding+I<=T.width)return!0;var P=0;T.rowHeight[O]0&&(P=A+T.verticalPadding-T.rowHeight[O]);var $;T.width-B>=I+T.horizontalPadding?$=(T.height+P)/(B+I+T.horizontalPadding):$=(T.height+P)/T.width,P=A+T.verticalPadding;var z;return T.widthO&&I!=A){D.splice(-1,1),T.rows[A].push(N),T.rowWidth[I]=T.rowWidth[I]-O,T.rowWidth[A]=T.rowWidth[A]+O,T.width=T.rowWidth[instance.getLongestRowIndex(T)];for(var B=Number.MIN_VALUE,P=0;PB&&(B=D[P].height);I>0&&(B+=T.verticalPadding);var $=T.rowHeight[I]+T.rowHeight[A];T.rowHeight[I]=B,T.rowHeight[A]0)for(var oe=N;oe<=O;oe++)X[0]+=this.grid[oe][B-1].length+this.grid[oe][B].length-1;if(O0)for(var oe=B;oe<=P;oe++)X[3]+=this.grid[N-1][oe].length+this.grid[N][oe].length-1;for(var K=k.MAX_VALUE,ee,Q,W=0;W{var l=o(551).FDLayoutNode,u=o(551).IMath;function h(d,p,g,m){l.call(this,d,p,g,m)}h.prototype=Object.create(l.prototype);for(var f in l)h[f]=l[f];h.prototype.calculateDisplacement=function(){var d=this.graphManager.getLayout();this.getChild()!=null&&this.fixedNodeWeight?(this.displacementX+=d.coolingFactor*(this.springForceX+this.repulsionForceX+this.gravitationForceX)/this.fixedNodeWeight,this.displacementY+=d.coolingFactor*(this.springForceY+this.repulsionForceY+this.gravitationForceY)/this.fixedNodeWeight):(this.displacementX+=d.coolingFactor*(this.springForceX+this.repulsionForceX+this.gravitationForceX)/this.noOfChildren,this.displacementY+=d.coolingFactor*(this.springForceY+this.repulsionForceY+this.gravitationForceY)/this.noOfChildren),Math.abs(this.displacementX)>d.coolingFactor*d.maxNodeDisplacement&&(this.displacementX=d.coolingFactor*d.maxNodeDisplacement*u.sign(this.displacementX)),Math.abs(this.displacementY)>d.coolingFactor*d.maxNodeDisplacement&&(this.displacementY=d.coolingFactor*d.maxNodeDisplacement*u.sign(this.displacementY)),this.child&&this.child.getNodes().length>0&&this.propogateDisplacementToChildren(this.displacementX,this.displacementY)},h.prototype.propogateDisplacementToChildren=function(d,p){for(var g=this.getChild().getNodes(),m,y=0;y{function l(g){if(Array.isArray(g)){for(var m=0,y=Array(g.length);m0){var st=0;Ze.forEach(function(Ke){ke=="horizontal"?(ge.set(Ke,x.has(Ke)?b[x.get(Ke)]:ye.get(Ke)),st+=ge.get(Ke)):(ge.set(Ke,x.has(Ke)?w[x.get(Ke)]:ye.get(Ke)),st+=ge.get(Ke))}),st=st/Ze.length,ft.forEach(function(Ke){j.has(Ke)||ge.set(Ke,st)})}else{var Ue=0;ft.forEach(function(Ke){ke=="horizontal"?Ue+=x.has(Ke)?b[x.get(Ke)]:ye.get(Ke):Ue+=x.has(Ke)?w[x.get(Ke)]:ye.get(Ke)}),Ue=Ue/ft.length,ft.forEach(function(Ke){ge.set(Ke,Ue)})}});for(var qe=function(){var Ze=Ce.shift(),st=U.get(Ze);st.forEach(function(Ue){if(ge.get(Ue.id)Ke&&(Ke=tt),_tit&&(it=_t)}}catch(Rn){Ht=!0,ot=Rn}finally{try{!mt&&et.return&&et.return()}finally{if(Ht)throw ot}}var ur=(st+Ke)/2-(Ue+it)/2,Qt=!0,Jt=!1,en=void 0;try{for(var Cr=ft[Symbol.iterator](),Kn;!(Qt=(Kn=Cr.next()).done);Qt=!0){var cn=Kn.value;ge.set(cn,ge.get(cn)+ur)}}catch(Rn){Jt=!0,en=Rn}finally{try{!Qt&&Cr.return&&Cr.return()}finally{if(Jt)throw en}}})}return ge},R=function(U){var ke=0,j=0,ye=0,Ae=0;if(U.forEach(function($e){$e.left?b[x.get($e.left)]-b[x.get($e.right)]>=0?ke++:j++:w[x.get($e.top)]-w[x.get($e.bottom)]>=0?ye++:Ae++}),ke>j&&ye>Ae)for(var Ge=0;Gej)for(var Fe=0;FeAe)for(var ge=0;ge1)m.fixedNodeConstraint.forEach(function(he,U){D[U]=[he.position.x,he.position.y],N[U]=[b[x.get(he.nodeId)],w[x.get(he.nodeId)]]}),O=!0;else if(m.alignmentConstraint)(function(){var he=0;if(m.alignmentConstraint.vertical){for(var U=m.alignmentConstraint.vertical,ke=function(ge){var $e=new Set;U[ge].forEach(function(lt){$e.add(lt)});var Ce=new Set([].concat(l($e)).filter(function(lt){return P.has(lt)})),qe=void 0;Ce.size>0?qe=b[x.get(Ce.values().next().value)]:qe=C($e).x,U[ge].forEach(function(lt){D[he]=[qe,w[x.get(lt)]],N[he]=[b[x.get(lt)],w[x.get(lt)]],he++})},j=0;j0?qe=b[x.get(Ce.values().next().value)]:qe=C($e).y,ye[ge].forEach(function(lt){D[he]=[b[x.get(lt)],qe],N[he]=[b[x.get(lt)],w[x.get(lt)]],he++})},Ge=0;GeJ&&(J=H[oe].length,X=oe);if(J0){var Oe={x:0,y:0};m.fixedNodeConstraint.forEach(function(he,U){var ke={x:b[x.get(he.nodeId)],y:w[x.get(he.nodeId)]},j=he.position,ye=S(j,ke);Oe.x+=ye.x,Oe.y+=ye.y}),Oe.x/=m.fixedNodeConstraint.length,Oe.y/=m.fixedNodeConstraint.length,b.forEach(function(he,U){b[U]+=Oe.x}),w.forEach(function(he,U){w[U]+=Oe.y}),m.fixedNodeConstraint.forEach(function(he){b[x.get(he.nodeId)]=he.position.x,w[x.get(he.nodeId)]=he.position.y})}if(m.alignmentConstraint){if(m.alignmentConstraint.vertical)for(var De=m.alignmentConstraint.vertical,We=function(U){var ke=new Set;De[U].forEach(function(Ae){ke.add(Ae)});var j=new Set([].concat(l(ke)).filter(function(Ae){return P.has(Ae)})),ye=void 0;j.size>0?ye=b[x.get(j.values().next().value)]:ye=C(ke).x,ke.forEach(function(Ae){P.has(Ae)||(b[x.get(Ae)]=ye)})},Re=0;Re0?ye=w[x.get(j.values().next().value)]:ye=C(ke).y,ke.forEach(function(Ae){P.has(Ae)||(w[x.get(Ae)]=ye)})},q=0;q{a.exports=t}},r={};function n(a){var s=r[a];if(s!==void 0)return s.exports;var o=r[a]={exports:{}};return e[a](o,o.exports,n),o.exports}var i=n(45);return i})()})});var Age=di((Jx,GO)=>{(function(e,r){typeof Jx=="object"&&typeof GO=="object"?GO.exports=r($O()):typeof define=="function"&&define.amd?define(["cose-base"],r):typeof Jx=="object"?Jx.cytoscapeFcose=r($O()):e.cytoscapeFcose=r(e.coseBase)})(Jx,function(t){return(()=>{"use strict";var e={658:a=>{a.exports=Object.assign!=null?Object.assign.bind(Object):function(s){for(var o=arguments.length,l=Array(o>1?o-1:0),u=1;u{var l=function(){function f(d,p){var g=[],m=!0,y=!1,x=void 0;try{for(var b=d[Symbol.iterator](),w;!(m=(w=b.next()).done)&&(g.push(w.value),!(p&&g.length===p));m=!0);}catch(_){y=!0,x=_}finally{try{!m&&b.return&&b.return()}finally{if(y)throw x}}return g}return function(d,p){if(Array.isArray(d))return d;if(Symbol.iterator in Object(d))return f(d,p);throw new TypeError("Invalid attempt to destructure non-iterable instance")}}(),u=o(140).layoutBase.LinkedList,h={};h.getTopMostNodes=function(f){for(var d={},p=0;p0&&O.merge(z)});for(var B=0;B1){w=x[0],_=w.connectedEdges().length,x.forEach(function(N){N.connectedEdges().length<_&&(_=N.connectedEdges().length,w=N)}),L.push(w.id());var D=f.collection();D.merge(x[0]),x.forEach(function(N){D.merge(N)}),x=[],p=p.difference(D),E++}};do C();while(!k);return g&&L.length>0&&g.set("dummy"+(g.size+1),L),S},h.relocateComponent=function(f,d,p){if(!p.fixedNodeConstraint){var g=Number.POSITIVE_INFINITY,m=Number.NEGATIVE_INFINITY,y=Number.POSITIVE_INFINITY,x=Number.NEGATIVE_INFINITY;if(p.quality=="draft"){var b=!0,w=!1,_=void 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Pe=Re.nodeIndexes.get(we.id());Pe!=null&&(We={x:Re.xCoords[Pe],y:Re.yCoords[Pe]})}),We==null&&(We={x:we.position("x"),y:we.position("y")}),{x:We.x,y:We.y}}};if(k.quality=="default"||k.quality=="proof"||k.randomize){var te=f.calcParentsWithoutChildren(E,L),Ne=L.filter(function(ae){return ae.css("display")=="none"});k.eles=L.not(Ne),L.nodes().not(":parent").not(Ne).layoutPositions(_,k,ue),te.length>0&&te.forEach(function(ae){ae.position(ue(ae))})}else console.log("If randomize option is set to false, then quality option must be 'default' or 'proof'.")}}]),b}();a.exports=x},657:(a,s,o)=>{var l=o(548),u=o(140).layoutBase.Matrix,h=o(140).layoutBase.SVD,f=function(p){var g=p.cy,m=p.eles,y=m.nodes(),x=m.nodes(":parent"),b=new Map,w=new Map,_=new Map,k=[],E=[],L=[],S=[],C=[],M=[],R=[],T=[],I=void 0,A=void 0,D=1e8,N=1e-9,O=p.piTol,B=p.samplingType,P=p.nodeSeparation,$=void 0,z=function(){for(var ke=0,j=0,ye=!1;j<$;){ke=Math.floor(Math.random()*A),ye=!1;for(var Ae=0;Ae=Ge;){ge=Ae[Ge++];for(var 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