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GoMock
source link: https://linuxsuren.github.io/blog/language/golang/gmock/
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GoMock
GoMock
GoMock 是 Go 语言的 Mock 框架。它可以很很好地和 Go 内置的 testing 包集成。
你只要安装了 Go 就可以通过下面的命令来安装 gomock 和 mockgen 工具。
go get github.com/golang/mock/gomock
go install github.com/golang/mock/mockgen
编写接口（测试用）
codes/golang/gmock/foo.go
package main
// Foo no-sense interface demo
type Foo interface {
Max(a, b int) int
}
func main() {}
生成 Mock 接口
执行命令 mockgen --source=foo.go --destination foo-mock.go
codes/golang/gmock/foo_test.go
package main
import (
"testing"
"./mock_main"
"github.com/golang/mock/gomock"
)
func TestFoo(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
expect := 2
m := mock_main.NewMockFoo(ctrl)
m.EXPECT().Max(1, 2).Return(expect)
if m.Max(1, 2) != expect {
t.Errorf("max result is wrong, should be %d\n", expect)
}
}
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