def test_notify_resolves_promise_when_finished(self):
# prepare dispatcher
d = Dispatcher()
foo = mock.MagicMock(side_effect=call_deferred)
cb = mock.MagicMock()
d.attach('foo', foo)
# test
d.notify('foo', self.event).done(cb)
# verify
foo.assert_called_once_with(IsA(Event), deferred=IsA(Deferred))
cb.assert_called_once_with(IsA(Event))
def test_notify_notifies_listeners_until_propagation_is_not_stopped(self):
# prepare dispatcher
d = Dispatcher()
foo = mock.MagicMock(side_effect=call_deferred)
bar = mock.MagicMock(side_effect=call_deferred)
d.attach('foo', foo)
d.attach('foo', bar)
# test
d.notify('foo', self.event)
# verify
foo.assert_called_once_with(IsA(Event), deferred=IsA(Deferred))
bar.assert_called_once_with(IsA(Event), deferred=IsA(Deferred))
def test_notify_terminates_notification_when_event_propagation_is_stopped(
self):
# prepare dispatcher
d = Dispatcher()
def stop_propagation(event, deferred):
event.stop_propagation()
call_deferred(event, deferred)
foo = mock.MagicMock(side_effect=stop_propagation)
bar = mock.MagicMock(side_effect=call_deferred)
d.attach('foo', foo)
d.attach('foo', bar)
# test
d.notify('foo', self.event)
# verify
foo.assert_called_once_with(IsA(Event), deferred=IsA(Deferred))
bar.assert_never_called()
