def test_disconnect_listener(self):
service = SelectionService()
provider_id = 'Bogus'
provider = BogusSelectionProvider(provider_id=provider_id)
service.add_selection_provider(provider)
listener = BogusListener()
service.connect_selection_listener(provider_id,
listener.on_selection_changed)
service.disconnect_selection_listener(provider_id,
listener.on_selection_changed)
provider.trigger_selection([1, 2, 3])
self.assertEqual(len(listener.selections), 0)
def test_disconnect_listener(self):
service = SelectionService()
provider_id = 'Bogus'
provider = BogusSelectionProvider(provider_id=provider_id)
service.add_selection_provider(provider)
listener = BogusListener()
service.connect_selection_listener(provider_id,
listener.on_selection_changed)
service.disconnect_selection_listener(provider_id,
listener.on_selection_changed)
provider.trigger_selection([1, 2, 3])
self.assertEqual(len(listener.selections), 0)
def test_disconnect_unknown_listener(self):
service = SelectionService()
provider_id = 'Bogus'
provider = BogusSelectionProvider(provider_id=provider_id)
service.add_selection_provider(provider)
# First case: there are listeners to a provider, but not the one we
# pass to the disconnect method
listener_1 = BogusListener()
service.connect_selection_listener(provider_id,
listener_1.on_selection_changed)
listener_2 = BogusListener()
with self.assertRaises(ListenerNotConnectedError):
service.disconnect_selection_listener(
provider_id, listener_2.on_selection_changed)
# Second case: there is no listener connected to the ID
with self.assertRaises(ListenerNotConnectedError):
service.disconnect_selection_listener(
'does-not-exists', listener_2.on_selection_changed)
def test_disconnect_unknown_listener(self):
service = SelectionService()
provider_id = 'Bogus'
provider = BogusSelectionProvider(provider_id=provider_id)
service.add_selection_provider(provider)
# First case: there are listeners to a provider, but not the one we
# pass to the disconnect method
listener_1 = BogusListener()
service.connect_selection_listener(provider_id,
listener_1.on_selection_changed)
listener_2 = BogusListener()
with self.assertRaises(ListenerNotConnectedError):
service.disconnect_selection_listener(
provider_id, listener_2.on_selection_changed)
# Second case: there is no listener connected to the ID
with self.assertRaises(ListenerNotConnectedError):
service.disconnect_selection_listener(
'does-not-exists', listener_2.on_selection_changed)
