public void should_effect_correct_setup_systems_once()
{
var dummyGroup = new Group(typeof(TestComponentOne), typeof(TestComponentTwo));
var mockPoolManager = Substitute.For <IPoolManager>();
var pool = mockPoolManager.GetPool();
var mockEventSystem = Substitute.For <IEventSystem>();
var mockSetupSystemHandler = Substitute.For <ISetupSystemHandler>();
var fakeSystem = Substitute.For <ISetupSystem>();
fakeSystem.TargetGroup.Returns(dummyGroup);
var systemExecutor = new SystemExecutor(mockPoolManager, mockEventSystem,
null, null, mockSetupSystemHandler, null, null);
systemExecutor.AddSystem(fakeSystem);
var entity = new Entity(Guid.NewGuid(), pool, mockEventSystem);
entity.AddComponent(new TestComponentOne());
systemExecutor.OnEntityComponentAdded(new ComponentAddedEvent(entity, new TestComponentOne()));
entity.AddComponent(new TestComponentTwo());
systemExecutor.OnEntityComponentAdded(new ComponentAddedEvent(entity, new TestComponentTwo()));
entity.AddComponent(new TestComponentThree());
systemExecutor.OnEntityComponentAdded(new ComponentAddedEvent(entity, new TestComponentThree()));
mockSetupSystemHandler.Received(1).ProcessEntity(Arg.Is(fakeSystem), Arg.Is(entity));
}
