package main

import (
    . "github.com/smartystreets/goconvey/convey"
    "testing"
)

func StringSliceEqual(a, b []string) bool {
    if len(a) != len(b) {
        return false
    }

    if (a == nil) != (b == nil) {
        return false
    }

    for i, v := range a {
        if v != b[i] {
            return false
        }
    }
    return true
}


// 每一个Convey语句对应一个测试用例，那么一个函数的多个测试用例可以通过一个测试函数的多个Convey语句来呈现
func TestStringSliceEqual(t *testing.T) {
    Convey("TestStringSliceEqual should return true when a != nil  && b != nil", t, func() {
        a := []string{"hello", "goconvey"}
        b := []string{"hello", "goconvey"}
        So(StringSliceEqual(a, b), ShouldBeTrue)
    })

    Convey("TestStringSliceEqual should return true when a ＝= nil  && b ＝= nil", t, func() {
        So(StringSliceEqual(nil, nil), ShouldBeTrue)
    })

    Convey("TestStringSliceEqual should return false when a ＝= nil  && b != nil", t, func() {
        a := []string(nil)
        b := []string{}
        So(StringSliceEqual(a, b), ShouldBeFalse)
    })

    Convey("TestStringSliceEqual should return false when a != nil  && b != nil", t, func() {
        a := []string{"hello", "world"}
        b := []string{"hello", "goconvey"}
        So(StringSliceEqual(a, b), ShouldBeFalse)
    })
}

// Convey语句可以无限嵌套，以体现测试用例之间的关系。需要注意的是，只有最外层的Convey需要传入*testing.T类型的变量t。
// 推荐使用这种以测试函数为单位多个测试用例集中显示的形式
func TestStringSliceEqual1(t *testing.T) {
    Convey("TestStringSliceEqual", t, func() {
        Convey("should return true when a != nil  && b != nil", func() {
            a := []string{"hello", "goconvey"}
            b := []string{"hello", "goconvey"}
            So(StringSliceEqual(a, b), ShouldBeTrue)
        })

        Convey("should return true when a ＝= nil  && b ＝= nil", func() {
            So(StringSliceEqual(nil, nil), ShouldBeTrue)
        })

        Convey("should return false when a ＝= nil  && b != nil", func() {
            a := []string(nil)
            b := []string{}
            So(StringSliceEqual(a, b), ShouldBeFalse)
        })

        Convey("should return false when a != nil  && b != nil", func() {
            a := []string{"hello", "world"}
            b := []string{"hello", "goconvey"}
            So(StringSliceEqual(a, b), ShouldBeFalse)
        })
    })
}

测试

➜  gocs go test -v cf_test.go -run TestStringSliceEqual1
=== RUN   TestStringSliceEqual1

  TestStringSliceEqual 
    should return true when a != nil  && b != nil ✔
    should return true when a ＝= nil  && b ＝= nil ✔
    should return false when a ＝= nil  && b != nil ✔
    should return false when a != nil  && b != nil ✔


4 total assertions

--- PASS: TestStringSliceEqual1 (0.00s)
PASS
ok      command-line-arguments  0.083s
➜  gocs 

还有一些其他的断言，有需要的可以看对应文档

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