GetComponentCount() bug after DestroyEntity() with system state component data?

Hi, I've created this unit test to make sure I understand the ISystemStateComponentData component.

Code (CSharp):

1.     [Test]
2.     public void SystemStateComponentExistsAfterDestroyEntity() {
3.       var e = _entityManager.CreateEntity();
4.       _entityManager.AddComponent<TestComponentData>(e);
5.       _entityManager.AddComponent<TestSystemStateComponentData>(e);
6.       // We have two components.
7.       Assert.That(_entityManager.GetComponentCount(e), Is.EqualTo(2));
8.       // After destroying the entity we only have the system state component left.
9.       _entityManager.DestroyEntity(e);
10.       Assert.That(_entityManager.HasComponent<TestComponentData>(e), Is.False);
11.       Assert.That(_entityManager.HasComponent<TestSystemStateComponentData>(e), Is.True);
12.       assertion fails, GetComponentCount() returns 2???
13.       Assert.That(_entityManager.GetComponentCount(e), Is.EqualTo(1));
14.       // Removing the system state component removes the entity.
15.       _entityManager.RemoveComponent<TestSystemStateComponentData>(e);
16.       Assert.That(_entityManager.Exists(e), Is.False);
17.     }

Why is GetComponentCount() returning 2, but the HasComponent<TestComponentData>(e) returns false? This seems like a bug with GetComponentCount() to me?

 

Not a bug. DestroyEntity will add an internal component called CleanupEntity whey encontering a ISystemState* component. This component is used to track entities that should be destroyed after all ISystemState* components have been removed.

[]'s

*edit: formatting

 

Thanks! That makes sense I guess. I should have checked which components were on the entity.

 

I was going to do this, but CleanupEntity is an internal struct so I guess I'll have to leave that assert out.

Code (CSharp):

1.       Assert.That(_entityManager.HasComponent<TestComponentData>(e), Is.False);
2.       Assert.That(_entityManager.HasComponent<TestSystemStateComponentData>(e), Is.True);
3.       Assert.That(_entityManager.HasComponent<CleanupEntity>(e), Is.True);
4.       Assert.That(_entityManager.GetComponentCount(e), Is.EqualTo(2));