go之单元测试

cal.go

package testcase

func sum(n int) int{
	sum := 0
	for i:=1;i<=n;i++{
		sum += i
	}
	return sum
}

func sub(a,b int)int{
	return a -b
}

　　

sum_test.go

package testcase

import "testing"

func TestSumCase(t *testing.T){
	res := sum(10)

	if res != 55{
		t.Fatalf("error occurred, expected %d, got %d",55,res)
	}
	t.Logf("successfully executed")
}

　　

sub_test.go

package testcase

import "testing"

func TestSubCase(t *testing.T){
	res := sub(10, 3)
	if res != 7{
		t.Fatalf("error occurred,expected %d,got %d",7, res)
	}
	t.Logf("successfully executed")
}

进入testcase目录下，输入go test -v

C:\Users\Administrator\go\src\awesomeProject\testcase>go test -v
=== RUN   TestSubCase
--- PASS: TestSubCase (0.00s)
    sub_test.go:10: successfully executed
=== RUN   TestSumCase
--- PASS: TestSumCase (0.00s)
    sum_test.go:11: successfully executed
PASS
ok      awesomeProject/testcase 0.061s

　　

这是测试全部，如果只是测试单个文件，go test -v sum_test.go cal.go

测试单个方法，go test -v -test.run TestSubCase