if testing.Short() {
		Delta = 20 * Millisecond
	}
	for range 3 {
		ticker := NewTicker(Delta)
		<-ticker.C
		ticker.Stop()
	}
}

// Test the Tick convenience wrapper.
func TestTick(t *testing.T) {
	// Test that giving a negative duration returns nil.
	if got := Tick(-1); got != nil {
		t.Errorf("Tick(-1) = %v; want nil", got)
	}
}