def test_instant_interval_interval(self):
a = ac.IntervalAction()
a.duration = 3.0
b = ac.InstantAction()
res = b + a
assert isinstance(res, ac.IntervalAction)
assert not isinstance(res, ac.InstantAction)
def test_instant_instant_instant(self):
a = ac.InstantAction()
b = ac.InstantAction()
res = a + b
assert isinstance(res, ac.InstantAction)
def test_instant_action_action(self):
a = ac.Action()
b = ac.InstantAction()
res = b + a
assert isinstance(res, ac.Action)
assert not isinstance(res, ac.IntervalAction)
