self.note.removeChild(self.child)
self.assertEqual([], self.note.children())
def testAddChildNotification(self):
patterns.Publisher().registerObserver(self.onEvent,
note.Note.addChildEventType())
self.note.addChild(self.child)
self.assertEqual(patterns.Event(note.Note.addChildEventType(),
self.note, self.child), self.events[0])