def test_callback_called_on_transition_to_self_on_event(self):
a = TimedFiniteAutomaton("start")
a.add_transition("start", "start", "event")
transitions = []
a.add_state_change_listener(lambda *a: transitions.append(a))
a.feed("event")
self.assertEqual(
[("start", "start", "event")],
transitions,
)
