Can not test a bunch of systems

I have two ComponentSystems and I need to get the result of their interaction in a test.

secondSystem.Update(); does not fire onUpdate, because all ComponentGroups are empty. (
ShouldRunSystem == true <- m_ComponentGroups.IsEmptyIgnoreFilter == true)

Do you have any suggestions how to update ComponetGroups after the first system update?

 

"com.unity.entities": "0.0.12-preview.23"
Situation has not changed.

Second ComponentSystem always has empty each
ComponentGroup in Tests with manual Update()

 

Problem was:

Code (CSharp):

1. // go instance of GameObject
2. go.AddComponent<ComponentA>(); // order is important
3. go.AddComponent<GameObjectEntity>();
4. // wrong order
5. // go.AddComponent<ComponentA>();
6.        
7. var entity = go.GetComponent<GameObjectEntity>().Entity;
8.  

Maybe this will help someone.

 

I encountered this before in my hybrid ECS test. GameObjectEntity captures component on their OnEnable. OnEnable of MonoBehaviour happen instantly on AddComponent and that's why you missed the capture. If you got the wrong order you can disable-enable the game object to clean up and remake the Entity again also.