class EventDispatcherTest(unittest.TestCase):
'''Tests the event dispatcher'''
def setUp(self):
self.dispatcher = EventDispatcher()
self.listener = EventListener()
def test_dispatch(self):
self.dispatcher.listen('test.dispatch', self.listener.onDispatch)
self.dispatcher.dispatch('test.dispatch', TestEvent('dispatch'))
self.assertEqual('dispatch', self.listener.testStr)
def test_priority(self):
self.dispatcher.listen('test.priority', self.listener.listenPriority('d'), 1)
self.dispatcher.listen('test.priority', self.listener.listenPriority('a'), -2)
self.dispatcher.listen('test.priority', self.listener.listenPriority('c'))
self.dispatcher.listen('test.priority', self.listener.listenPriority('b'), -1)
self.dispatcher.dispatch('test.priority')
self.assertEqual('abcd', self.listener.testStr)
def test_detach(self):
self.dispatcher.listen('test.detach', self.listener.onDispatch)
listener_id = self.dispatcher.listen('test.detach', self.listener.onDispatch)
self.dispatcher.detach(listener_id)
self.dispatcher.dispatch('test.detach', TestEvent('detach'))
self.assertEqual('detach', self.listener.testStr)
def test_dispatchWhenNoneListener(self):
self.dispatcher.dispatch('alone')
def test_getParent(self):
self.assertEqual('test.parent', self.dispatcher.getParent('test.parent.child'))
self.assertEqual(None, self.dispatcher.getParent('noparent'))
with self.assertRaises(AssertionError):
self.dispatcher.getParent('test.parent .childish')
def test_propagation(self):
self._registerListenerForPropagationTest(self.dispatcher)
self.dispatcher.dispatch('test.propa', TestEvent('propa-'), True)
self.assertEqual('propa-propa-', self.listener.testStr)
def test_globalPropagation(self):
dispatcher = EventDispatcher(True)
self._registerListenerForPropagationTest(dispatcher)
dispatcher.dispatch('test.propa', TestEvent('propa-'))
self.assertEqual('propa-propa-', self.listener.testStr)
def test_propagationOverriding(self):
dispatcher = EventDispatcher(True)
self._registerListenerForPropagationTest(dispatcher)
dispatcher.dispatch('test.propa', TestEvent('propa-'), False)
self.assertEqual('propa-', self.listener.testStr)
def test_decorator(self):
@self.dispatcher.on('test.decorator')
def listener(e):
self.listener.onDispatch(e)
self.dispatcher.dispatch('test.decorator', TestEvent('decorator'))
self.assertEqual('decorator', self.listener.testStr)
def test_listenAll(self):
self.dispatcher.listen('test.a', self.listener.onDispatch)
self.dispatcher.listen('all', self.listener.onDispatch)
self.dispatcher.dispatch('test.a', TestEvent('a'))
self.dispatcher.dispatch('test.b', TestEvent('b'))
self.dispatcher.dispatch('test.c', TestEvent('c'))
self.dispatcher.dispatch('test.d', TestEvent('d'))
self.dispatcher.dispatch('test.e', TestEvent('e'))
self.assertEqual('aabcde', self.listener.testStr)
def _registerListenerForPropagationTest(self, dispatcher):
dispatcher.listen('test', self.listener.onDispatch)
dispatcher.listen('test.propa', self.listener.onDispatch)
