def test_event_model(self):
listener = SomeListener()
listener.on('something', listener.listen_something)
thrower = EventThrower()
thrower.add_listener(listener)
self.assertTrue(getattr(listener, 'foo', None) is None)
thrower.emit('something')
self.assertEqual(listener.foo, 'bar')
def test_a_listener_can_be_killed(self):
listener = SomeListener()
listener.on('something', listener.listen_something)
thrower = EventThrower()
thrower.add_listener(listener)
thrower.emit('something')
self.assertEqual(listener.foo, 'bar')
del listener
""" Garbage collector is required to simulate time passing """
import gc; gc.collect()
thrower.emit('something')
self.assertEqual(0, len(thrower.__LISTENERS__))
def __init__(self, **kwargs):
ValidatingStruct.__init__(self, **kwargs)
EventListener.__init__(self)
EventThrower.__init__(self)
