golang的測試架構stretchr/testify

golang的測試架構stretchr/testify

• 安裝

$ export GOPATH=~/go$ go get github.com/stretchr/testify

然後在你的GOPATH目錄下面就可以看到

$ ls ${GOPATH}/src/github.com/stretchr/testifyassert  _codegen  doc.go  Gopkg.lock  Gopkg.toml  http  LICENSE  mock  package_test.go  README.md  require  suite  vendor

我主要用兩個包

1. assert package
2. require package

他們的唯一差別就是require的函數會直接導致case結束，而assert雖然也標記為case失敗，但case不會退出，而是繼續往下執行。看一個例子：
例子1：使用assert

package mainimport (  "testing"  "github.com/stretchr/testify/assert" )func TestCase1(t *testing.T) {    name := "Bob"    age := 10    assert.Equal(t, "bob", name)    assert.Equal(t, 20, age)}

執行：

$ go test          --- FAIL: TestCase1 (0.00s)        assertions.go:254:                         Error Trace:    main_test.go:13                        Error:          Not equal:                                         expected: "bob"                                        actual  : "Bob"                        Test:           TestCase1        assertions.go:254:                         Error Trace:    main_test.go:14                        Error:          Not equal:                                         expected: 20                                        actual  : 10                        Test:           TestCase1FAILexit status 1FAIL    testUT  0.009s

在這個例子中我們使用的是assert，可以看到兩個assert.Equal()指令都被執行了。
例子2：使用require

package mainimport (  "testing"  "github.com/stretchr/testify/require")func TestCase1(t *testing.T) {    name := "Bob"    age := 10    require.Equal(t, "bob", name)    require.Equal(t, 20, age)}

執行：

$ go test--- FAIL: TestCase1 (0.00s)        assertions.go:254:                         Error Trace:    main_test.go:12                        Error:          Not equal:                                         expected: "bob"                                        actual  : "Bob"                        Test:           TestCase1FAILexit status 1FAIL    testUT  0.007s

而在這個例子中我們使用的是require，可以看到只有第一個require.Equal()指令被執行了，第二個require.Equal()沒有被執行。

常用的stretchr/testify架構函數：

func Equal(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) boolfunc NotEqual(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) boolfunc Nil(t TestingT, object interface{}, msgAndArgs ...interface{}) boolfunc NotNil(t TestingT, object interface{}, msgAndArgs ...interface{}) boolfunc Empty(t TestingT, object interface{}, msgAndArgs ...interface{}) boolfunc NotEmpty(t TestingT, object interface{}, msgAndArgs ...interface{}) boolfunc NoError(t TestingT, err error, msgAndArgs ...interface{}) boolfunc Error(t TestingT, err error, msgAndArgs ...interface{}) boolfunc Zero(t TestingT, i interface{}, msgAndArgs ...interface{}) boolfunc NotZero(t TestingT, i interface{}, msgAndArgs ...interface{}) boolfunc True(t TestingT, value bool, msgAndArgs ...interface{}) boolfunc False(t TestingT, value bool, msgAndArgs ...interface{}) boolfunc Len(t TestingT, object interface{}, length int, msgAndArgs ...interface{}) boolfunc NotContains(t TestingT, s, contains interface{}, msgAndArgs ...interface{}) boolfunc NotContains(t TestingT, s, contains interface{}, msgAndArgs ...interface{}) boolfunc Subset(t TestingT, list, subset interface{}, msgAndArgs ...interface{}) (ok bool)func NotSubset(t TestingT, list, subset interface{}, msgAndArgs ...interface{}) (ok bool)func FileExists(t TestingT, path string, msgAndArgs ...interface{}) boolfunc DirExists(t TestingT, path string, msgAndArgs ...interface{}) bool

官方連結：
https://github.com/stretchr/testify