public void Delivers_messages_scheduled_for_same_time_in_order_they_were_added()
{
_testReceiveActor.Tell(new ScheduleOnceMessage(TimeSpan.FromSeconds(1), 1));
_testReceiveActor.Tell(new ScheduleOnceMessage(TimeSpan.FromSeconds(1), 2));
Scheduler.Advance(TimeSpan.FromSeconds(1));
var firstId = ExpectMsg<ScheduleOnceMessage>().Id;
var secondId = ExpectMsg<ScheduleOnceMessage>().Id;
Assert.Equal(1, firstId);
Assert.Equal(2, secondId);
}