def test_remove_aspect_from_entity(world):
aspect = Aspect([Component_A])
entity = world.create_entity(*aspect())
world._flush_component_updates()
assert aspect.in_entity(entity)
components = aspect.remove(entity)
world._flush_component_updates()
assert not aspect.in_entity(entity)
assert Component_A not in entity
assert len(components) == 1
assert isinstance(components[0], Component_A)
def test_remove_aspect_from_entity_that_does_not_have_it(world):
aspect = Aspect([Component_A])
entity = world.create_entity()
with pytest.raises(ValueError):
aspect.remove(entity)
