Fake Time

Overview

Fake Time for test. not best way.

Detail

var now = Time.Now

// if you want to use specify time, you call it. then replace time to argument valuen.
// then, you receive function is for revert original time module. for finish test, recommend call by defer
func switchFakeTime(t time.Time) (revertFakeTime func()) {
    now = func() time.Time {
        return t
    }

    return func() {
        now = time.Now
    }
}


fmt.Println(now())

revertFunc := switchFakeTime.(Time.Now())

fmt.Println(now())
time.Sleep(10 * time.Second)
fmt.Println(now())

revertFunc()
fmt.Println(now())