def setUp(self):
self.observer = Observer()
def setUp(self):
self.observer = Observer()
class TestObserver(unittest.TestCase):
def setUp(self):
self.observer = Observer()
def test_count_listener(self):
self.assertEqual(0, self.observer._count_listeners('test'))
def test_can_subscribe_with_no_get_root(self):
listerner = ListenerWithoutGetXMLRootMethod()
self.observer.subscribe('save', listerner)
self.assertTrue(self.observer._has_listener('save'))
def test_multiple_listeners(self):
L1 = Listener()
L2 = Listener()
self.observer.subscribe('save', L1)
self.observer.subscribe('save', L2)
self.assertEqual(self.observer._count_listeners('save'), 2)
def test_subscribe_event(self):
listener = Listener()
self.observer.subscribe('save', listener)
self.assertTrue(self.observer._has_listener('save'))
def test_subscribe_without_event_handler(self):
listener = Listener()
with self.assertRaises(AttributeError):
self.observer.subscribe('open', listener)
def test_unsubscribe_existing_event(self):
listener = Listener()
self.observer.subscribe('save', listener)
self.observer.unsubscribe('save', listener)
self.assertFalse(self.observer._has_listener('save'))
def test_unsubscribe_not_existing_event(self):
listener = Listener()
with self.assertRaises(KeyError):
self.observer.unsubscribe('save', listener)
def test_unsubscribe_not_existing_listener(self):
listener = Listener()
self.observer.subscribe('save', listener)
with self.assertRaises(KeyError):
self.observer.unsubscribe('save', self)
def test_broadcast(self):
listener = Listener()
self.assertEqual(listener.msg, 'fail')
self.observer.subscribe('save', listener)
self.observer.broadcast(event='save', msg=self)
self.assertEqual(listener.msg, 'ok')
def test_broadcast_without_listeners_is_ok(self):
self.observer.broadcast(event='save', msg=self)
self.assertTrue(True)
def test_broadcast_to_destroyed_listeners(self):
listener = Listener()
self.observer.subscribe('save', listener)
del listener
self.assertEqual(self.observer._count_listeners('save'), 0)
self.observer.broadcast(event='save', msg=self)
def test_broadcast_to_different_roots(self):
root1 = object()
root2 = object()
listeners = [Listener(root1), Listener(root2), ListenerWithoutGetXMLRootMethod()]
for listener in listeners:
self.observer.subscribe('save', listener)
self.observer.broadcast(event='save', msg=self, root=root1)
self.assertEqual(listeners[0].msg, 'ok')
self.assertEqual(listeners[1].msg, 'fail')
self.assertEqual(listeners[2].msg, 'fail')
class TestObserver(unittest.TestCase):
def setUp(self):
self.observer = Observer()
def test_count_listener(self):
self.assertEqual(0, self.observer._count_listeners('test'))
def test_can_subscribe_with_no_get_root(self):
listerner = ListenerWithoutGetXMLRootMethod()
self.observer.subscribe('save', listerner)
self.assertTrue(self.observer._has_listener('save'))
def test_multiple_listeners(self):
L1 = Listener()
L2 = Listener()
self.observer.subscribe('save', L1)
self.observer.subscribe('save', L2)
self.assertEqual(self.observer._count_listeners('save'), 2)
def test_subscribe_event(self):
listener = Listener()
self.observer.subscribe('save', listener)
self.assertTrue(self.observer._has_listener('save'))
def test_subscribe_without_event_handler(self):
listener = Listener()
with self.assertRaises(AttributeError):
self.observer.subscribe('open', listener)
def test_unsubscribe_existing_event(self):
listener = Listener()
self.observer.subscribe('save', listener)
self.observer.unsubscribe('save', listener)
self.assertFalse(self.observer._has_listener('save'))
def test_unsubscribe_not_existing_event(self):
listener = Listener()
with self.assertRaises(KeyError):
self.observer.unsubscribe('save', listener)
def test_unsubscribe_not_existing_listener(self):
listener = Listener()
self.observer.subscribe('save', listener)
with self.assertRaises(KeyError):
self.observer.unsubscribe('save', self)
def test_broadcast(self):
listener = Listener()
self.assertEqual(listener.msg, 'fail')
self.observer.subscribe('save', listener)
self.observer.broadcast(event='save', msg=self)
self.assertEqual(listener.msg, 'ok')
def test_broadcast_without_listeners_is_ok(self):
self.observer.broadcast(event='save', msg=self)
self.assertTrue(True)
def test_broadcast_to_destroyed_listeners(self):
listener = Listener()
self.observer.subscribe('save', listener)
del listener
self.assertEqual(self.observer._count_listeners('save'), 0)
self.observer.broadcast(event='save', msg=self)
def test_broadcast_to_different_roots(self):
root1 = object()
root2 = object()
listeners = [Listener(root1), Listener(root2), ListenerWithoutGetXMLRootMethod()]
for listener in listeners:
self.observer.subscribe('save', listener)
self.observer.broadcast(event='save', msg=self, root=root1)
self.assertEqual(listeners[0].msg, 'ok')
self.assertEqual(listeners[1].msg, 'fail')
self.assertEqual(listeners[2].msg, 'fail')