Example #1
0
func ExampleMock_After() {
	// Create a new mock clock.
	clock := clock.NewMock()
	count := 0

	// Create a channel to execute after 10 mock seconds.
	go func() {
		<-clock.After(10 * time.Second)
		count = 100
	}()
	runtime.Gosched()

	// Print the starting value.
	fmt.Printf("%s: %d\n", clock.Now().UTC(), count)

	// Move the clock forward 5 seconds and print the value again.
	clock.Add(5 * time.Second)
	fmt.Printf("%s: %d\n", clock.Now().UTC(), count)

	// Move the clock forward 5 seconds to the tick time and check the value.
	clock.Add(5 * time.Second)
	fmt.Printf("%s: %d\n", clock.Now().UTC(), count)

	// Output:
	// 1970-01-01 00:00:00 +0000 UTC: 0
	// 1970-01-01 00:00:05 +0000 UTC: 0
	// 1970-01-01 00:00:10 +0000 UTC: 100
}
Example #2
0
// Ensure that the mock's After channel sends at the correct time.
func TestMock_After(t *testing.T) {
	var ok int32
	clock := clock.NewMock()

	// Create a channel to execute after 10 mock seconds.
	ch := clock.After(10 * time.Second)
	go func(ch <-chan time.Time) {
		<-ch
		atomic.StoreInt32(&ok, 1)
	}(ch)

	// Move clock forward to just before the time.
	clock.Add(9 * time.Second)
	if atomic.LoadInt32(&ok) == 1 {
		t.Fatal("too early")
	}

	// Move clock forward to the after channel's time.
	clock.Add(1 * time.Second)
	if atomic.LoadInt32(&ok) == 0 {
		t.Fatal("too late")
	}
}