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builder_test.go
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314 lines (295 loc) · 7.99 KB
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package errors
import (
"fmt"
"testing"
"time"
)
func TestBuilder_Build(t *testing.T) {
tests := []struct {
name string
setup func(*Builder) *Builder
validate func(*testing.T, Error)
}{
{
name: "默认构建器使用内部错误",
setup: func(b *Builder) *Builder {
return b
},
validate: func(t *testing.T, err Error) {
if err == nil {
t.Fatal("期望得到错误,但得到了nil")
}
if err.Code() != ErrInternal.Code {
t.Errorf("期望代码 %s,但得到了 %s", ErrInternal.Code, err.Code())
}
if err.Message() != ErrInternal.Message {
t.Errorf("期望消息 %s,但得到了 %s", ErrInternal.Message, err.Message())
}
if err.HttpStatus() != ErrInternal.HttpStatus {
t.Errorf("期望HTTP状态码 %d,但得到了 %d", ErrInternal.HttpStatus, err.HttpStatus())
}
},
},
{
name: "使用自定义错误码的构建器",
setup: func(b *Builder) *Builder {
return b.WithCode(ErrBadRequest)
},
validate: func(t *testing.T, err Error) {
if err.Code() != ErrBadRequest.Code {
t.Errorf("期望代码 %s,但得到了 %s", ErrBadRequest.Code, err.Code())
}
if err.Message() != ErrBadRequest.Message {
t.Errorf("期望消息 %s,但得到了 %s", ErrBadRequest.Message, err.Message())
}
},
},
{
name: "使用自定义消息的构建器",
setup: func(b *Builder) *Builder {
return b.WithCode(ErrBadRequest).WithMessage("自定义消息")
},
validate: func(t *testing.T, err Error) {
if err.Message() != "自定义消息" {
t.Errorf("期望自定义消息,但得到了 %s", err.Message())
}
},
},
{
name: "带有原因错误的构建器",
setup: func(b *Builder) *Builder {
cause := New(ErrInternal)
return b.WithCode(ErrBadRequest).WithCause(cause)
},
validate: func(t *testing.T, err Error) {
if err.Unwrap() == nil {
t.Error("期望得到原因错误,但得到了nil")
}
},
},
{
name: "带有元数据的构建器",
setup: func(b *Builder) *Builder {
return b.WithCode(ErrBadRequest).
WithMetadata("key1", "value1").
WithMetadata("key2", 42)
},
validate: func(t *testing.T, err Error) {
metadata := err.Metadata()
if len(metadata) != 2 {
t.Errorf("期望2个元数据项,但得到了 %d", len(metadata))
}
if metadata["key1"] != "value1" {
t.Errorf("期望元数据 key1=value1,但得到了 %v", metadata["key1"])
}
if metadata["key2"] != 42 {
t.Errorf("期望元数据 key2=42,但得到了 %v", metadata["key2"])
}
},
},
{
name: "带有元数据映射的构建器",
setup: func(b *Builder) *Builder {
meta := map[string]any{
"mapKey1": "mapValue1",
"mapKey2": 123,
}
return b.WithCode(ErrBadRequest).WithMetadataMap(meta)
},
validate: func(t *testing.T, err Error) {
metadata := err.Metadata()
if len(metadata) != 2 {
t.Errorf("期望2个元数据项,但得到了 %d", len(metadata))
}
if metadata["mapKey1"] != "mapValue1" {
t.Errorf("期望元数据 mapKey1=mapValue1,但得到了 %v", metadata["mapKey1"])
}
if metadata["mapKey2"] != 123 {
t.Errorf("期望元数据 mapKey2=123,但得到了 %v", metadata["mapKey2"])
}
},
},
{
name: "启用快速模式的构建器",
setup: func(b *Builder) *Builder {
return b.WithCode(ErrBadRequest).WithFastMode()
},
validate: func(t *testing.T, err Error) {
// 在快速模式下,不应捕获堆栈跟踪
// 注意:此验证取决于captureStackTrace的实际实现
// 我们假设当启用快速模式时,堆栈跟踪将为空或nil
},
},
{
name: "使用所有选项的构建器",
setup: func(b *Builder) *Builder {
cause := New(ErrInternal)
meta := map[string]any{"test": "data"}
return b.WithCode(ErrBadRequest).
WithMessage("所有选项测试").
WithCause(cause).
WithMetadataMap(meta).
WithFastMode()
},
validate: func(t *testing.T, err Error) {
if err.Code() != ErrBadRequest.Code {
t.Errorf("期望代码 %s,但得到了 %s", ErrBadRequest.Code, err.Code())
}
if err.Message() != "所有选项测试" {
t.Errorf("期望消息 '所有选项测试',但得到了 %s", err.Message())
}
if err.Unwrap() == nil {
t.Error("期望得到原因错误,但得到了nil")
}
metadata := err.Metadata()
if metadata["test"] != "data" {
t.Errorf("期望元数据 test=data,但得到了 %v", metadata["test"])
}
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
builder := NewBuilder()
builder = tt.setup(builder)
err := builder.Build()
tt.validate(t, err)
// 验证时间戳已设置
if err.Timestamp().IsZero() {
t.Error("期望时间戳被设置")
}
// 验证时间戳是最近的(在最后一秒内)
if time.Since(err.Timestamp()) > time.Second {
t.Error("期望时间戳是最近的")
}
})
}
}
func TestNewBuilder(t *testing.T) {
builder := NewBuilder()
if builder == nil {
t.Fatal("NewBuilder() 返回了 nil")
}
// 检查元数据映射是否已初始化
if builder.metadata == nil {
t.Error("元数据映射应该被初始化")
}
// 检查其他字段是否为零值
if builder.code != nil {
t.Error("代码应该初始为nil")
}
if builder.message != "" {
t.Error("消息应该初始为空")
}
if builder.cause != nil {
t.Error("原因错误应该初始为nil")
}
if builder.fastMode {
t.Error("快速模式应该初始为false")
}
}
func TestBuilder_MethodChaining(t *testing.T) {
builder := NewBuilder().
WithCode(ErrBadRequest).
WithMessage("链式消息").
WithFastMode()
if builder.code != ErrBadRequest {
t.Errorf("期望代码 %v,但得到了 %v", ErrBadRequest, builder.code)
}
if builder.message != "链式消息" {
t.Errorf("期望消息 '链式消息',但得到了 %s", builder.message)
}
if !builder.fastMode {
t.Error("期望快速模式为true")
}
}
// BenchmarkBuilder 测试 Builder 模式的性能
func BenchmarkBuilder(b *testing.B) {
b.Run("BasicBuilder", func(b *testing.B) {
for i := 0; i < b.N; i++ {
err := NewBuilder().
WithCode(ErrInternal).
Build()
_ = err
}
})
b.Run("BuilderWithMessage", func(b *testing.B) {
for i := 0; i < b.N; i++ {
err := NewBuilder().
WithCode(ErrInternal).
WithMessage("benchmark test error").
Build()
_ = err
}
})
b.Run("BuilderWithMetadata", func(b *testing.B) {
for i := 0; i < b.N; i++ {
err := NewBuilder().
WithCode(ErrInternal).
WithMetadata("key1", "value1").
WithMetadata("key2", fmt.Sprintf("value%d", i)).
Build()
_ = err
}
})
b.Run("BuilderWithCause", func(b *testing.B) {
cause := New(ErrBadRequest)
for i := 0; i < b.N; i++ {
err := NewBuilder().
WithCode(ErrInternal).
WithCause(cause).
Build()
_ = err
}
})
b.Run("BuilderWithFastMode", func(b *testing.B) {
for i := 0; i < b.N; i++ {
err := NewBuilder().
WithCode(ErrInternal).
WithFastMode().
Build()
_ = err
}
})
b.Run("BuilderWithAllOptions", func(b *testing.B) {
cause := New(ErrBadRequest)
meta := map[string]any{
"testKey1": "testValue1",
"testKey2": 42,
}
for i := 0; i < b.N; i++ {
err := NewBuilder().
WithCode(ErrInternal).
WithMessage("benchmark test with all options").
WithCause(cause).
WithMetadataMap(meta).
WithFastMode().
Build()
_ = err
}
})
}
// BenchmarkBuilderVsDirect 测试 Builder 模式与直接创建错误的性能对比
func BenchmarkBuilderVsDirect(b *testing.B) {
b.Run("DirectNew", func(b *testing.B) {
for i := 0; i < b.N; i++ {
err := New(ErrInternal)
_ = err
}
})
b.Run("DirectNewf", func(b *testing.B) {
for i := 0; i < b.N; i++ {
err := Newf(ErrInternal, "direct error %d", i)
_ = err
}
})
b.Run("BuilderApproach", func(b *testing.B) {
for i := 0; i < b.N; i++ {
err := NewBuilder().
WithCode(ErrInternal).
WithMessage(fmt.Sprintf("builder error %d", i)).
Build()
_ = err
}
})
}