如何在Golang中测试接口实现_Golang 接口实现测试实践

type DataProcessor interface {
    Process(data []byte) error
    Validate() bool
}

type FileProcessor struct{}

func (fp *FileProcessor) Process(data []byte) error {
    // 实现逻辑
    return nil
}

func (fp *FileProcessor) Validate() bool {
    return len(data) > 0
}

var _ DataProcessor = (*FileProcessor)(nil)

func TestFileProcessor_ImplementsDataProcessor(t *testing.T) {
    var processor DataProcessor = &FileProcessor{}
    if processor == nil {
        t.Fail() // 不可能走到这里，只是为了触发赋值检查
    }
}

func TestFileProcessor_Validate(t *testing.T) {
    fp := &FileProcessor{}
    
    tests := []struct {
        name string
        data []byte
        want bool
    }{
        {"empty data", nil, false},
        {"valid data", []byte("hello"), true},
    }

    for _, tt := range tests {
        t.Run(tt.name, func(t *testing.T) {
            // 假设我们有一个字段存储数据，或通过其他方式传入
            result := fp.Validate()
            if result != tt.want {
                t.Errorf("Validate() = %v, want %v", result, tt.want)
            }
        })
    }
}

go install github.com/maratori/implements@latest
implements '*mypkg.DataProcessor' 'mypkg.FileProcessor'