go语言单元测试demo

文件mymath.go

package mymath

func Add(a, b int) int {
	return a + b
}
func Max(a, b int) (ret int) {
	ret = a
	if b > a {
		ret = b
	}
	return
}

测试文件 mymath_test.go（所有测试文件都必须以*_test.go结尾）

package mymath_test

import (
	"mymath"
	"testing"
)

type mathTest struct {
	a, b, ret int
}

var addTest = []mathTest{
	mathTest{4, 6, 10},
	mathTest{5, 6, 11},
	mathTest{2, -6, -4},
}

var maxTest = []mathTest{
	mathTest{3, 5, 5},
	mathTest{-3, 5, 5},
	mathTest{-3, -5, -3},
}

func TestAdd(t *testing.T) {
	for _, v := range addTest {
		ret := mymath.Add(v.a, v.b)
		if ret != v.ret {
			t.Errorf("%d add %d, want %d, but get %d", v.a, v.b, v.ret, ret)
		}
	}
}
func TestMax(t *testing.T) {
	for _, v := range maxTest {
		ret := mymath.Max(v.a, v.b)
		if ret != v.ret {
			t.Errorf("the max number between %d and %d is want %d, but get %d", v.a, v.b, v.ret, ret)
		}
	}
}

PASS

ok  	  myweb/lib/session	   3.863s

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