异常期间在golang中运行测试用例

Question

I am writing testcases for method with doesnt return any values , for eg:

func GetByNameReturnNull(serName string)
{
 //Logic
}

My testcasefile is myTest.go which has two parameters , one calling the method with invalid input and calling the method with valid input.

func Test1(t *testing.T) { 
    GetByNameReturnNull("Invalid")
}


func Test2(t *testing.T) { 

    GetByNameReturnNull("valid")
}

So , the first testcase will fail and throw the exception , I cant handle it in the conventional way like ,

"check for err from the returned method because the method doesnt return anything at all. When I execute the command,

$go test ./... -v

the second testcase will not execute because of the exception of the first.

So Without changing any logic in the base method(GetByNameReturnNull) to return err or anything , is there any way to handle this scenario in the testcase file itself to print

1 fail 1 pass in the output?

Answer 1

@VonC is correct, there's no way to automatically handle it, however you can simply make a wrapper and call it in each test.

This way you don't have to use a global variable to keep track of the tests.

Example:

func logPanic(t *testing.T, f func()) {
    defer func() {
        if err := recover(); err != nil {
            t.Errorf("paniced: %v", err)
        }
    }()
    f()
}

func Test1(t *testing.T) {
    logPanic(t, func() {
        GetByNameReturnNull("invalid")
    })
    //or if the function doesn't take arguments
    //logPanic(t, GetByNameReturnNull)
}

func Test2(t *testing.T) {
    logPanic(t, func() {
        GetByNameReturnNull("valid")
    })
}