public void Schedule_A_ResourceHarvested_When_Receiving_One()
{
_harvester.Tell(new ResourceHarvesterActor.ResourceHarvested());
_mockScheduler.Verify(m => m.ScheduleTellOnce(It.IsAny<TimeSpan>(), _harvester, It.IsAny<ResourceHarvesterActor.ResourceHarvested>(), _harvester));
}