def test_subscribed_functions_called_in_sequence(self, signal: SimpleSignal):
order = []
for c in range(100):
signal.subscribe(partial(order.append, c))
signal()
assert len(order) == 100
assert order == sorted(order)
def test_subscribed_functions_invoked_on_call(self, signal: SimpleSignal):
f = mock.Mock()
signal.subscribe(f)
signal(1, 2, 3, val=2)
f.assert_called_with(1, 2, 3, val=2)
def test_broken_subscriber(self, signal: SimpleSignal):
subs = [mock.Mock(), mock.Mock(), mock.Mock()]
subs[1].side_effect = TExc()
for s in subs:
signal.subscribe(s)
with pytest.raises(TExc):
signal(1, 2)
subs[0].assert_called_once_with(1, 2)
subs[1].assert_called_once_with(1, 2)
subs[2].assert_not_called()
def test_calling_cleaned_signal_raises_exception(self, signal: SimpleSignal):
signal.clean()
with pytest.raises(Exception):
signal()
def test_allows_function_registration(self, signal: SimpleSignal):
def foo(*args, **kwargs):
pass
signal.subscribe(foo)
def signal(self):
return SimpleSignal()