def test_areNotificationsHeld_all_held(self):
center = NotificationCenter()
observable = _TestObservable(center, "Observable")
observer = NotificationTestObserver()
center.addObserver(observer, "notificationCallback", "A", observable)
center.holdNotifications()
self.assertTrue(center.areNotificationsHeld())
center.releaseHeldNotifications()
self.assertFalse(center.areNotificationsHeld())
def test_areNotificationsHeld_all_held(self):
center = NotificationCenter()
observable = _TestObservable(center, "Observable")
observer = NotificationTestObserver()
center.addObserver(observer, "notificationCallback", "A", observable)
center.holdNotifications()
self.assertTrue(center.areNotificationsHeld())
center.releaseHeldNotifications()
self.assertFalse(center.areNotificationsHeld())
def test_areNotificationsHeld_observer_off(self):
center = NotificationCenter()
observable = _TestObservable(center, "Observable")
observer1 = NotificationTestObserver()
observer2 = NotificationTestObserver()
center.addObserver(observer1, "notificationCallback", "A", observable)
center.addObserver(observer2, "notificationCallback", "A", observable)
center.holdNotifications(observer=observer1)
self.assertTrue(center.areNotificationsHeld(observer=observer1))
self.assertFalse(center.areNotificationsHeld(observer=observer2))
center.releaseHeldNotifications(observer=observer1)
self.assertFalse(center.areNotificationsHeld(observer=observer1))
def test_areNotificationsHeld_observable_off(self):
center = NotificationCenter()
observable1 = _TestObservable(center, "Observable1")
observable2 = _TestObservable(center, "Observable2")
observer = NotificationTestObserver()
center.addObserver(observer, "notificationCallback", "A", observable1)
center.addObserver(observer, "notificationCallback", "B", observable2)
center.holdNotifications(observable=observable1)
self.assertTrue(center.areNotificationsHeld(observable=observable1))
self.assertFalse(center.areNotificationsHeld(observable=observable2))
center.releaseHeldNotifications(observable=observable1)
self.assertFalse(center.areNotificationsHeld(observable=observable1))
def test_areNotificationsHeld_observer_off(self):
center = NotificationCenter()
observable = _TestObservable(center, "Observable")
observer1 = NotificationTestObserver()
observer2 = NotificationTestObserver()
center.addObserver(observer1, "notificationCallback", "A", observable)
center.addObserver(observer2, "notificationCallback", "A", observable)
center.holdNotifications(observer=observer1)
self.assertTrue(center.areNotificationsHeld(observer=observer1))
self.assertFalse(center.areNotificationsHeld(observer=observer2))
center.releaseHeldNotifications(observer=observer1)
self.assertFalse(center.areNotificationsHeld(observer=observer1))
def test_areNotificationsHeld_observable_off(self):
center = NotificationCenter()
observable1 = _TestObservable(center, "Observable1")
observable2 = _TestObservable(center, "Observable2")
observer = NotificationTestObserver()
center.addObserver(observer, "notificationCallback", "A", observable1)
center.addObserver(observer, "notificationCallback", "B", observable2)
center.holdNotifications(observable=observable1)
self.assertTrue(center.areNotificationsHeld(observable=observable1))
self.assertFalse(center.areNotificationsHeld(observable=observable2))
center.releaseHeldNotifications(observable=observable1)
self.assertFalse(center.areNotificationsHeld(observable=observable1))
def test_hold_and_releaseHeldNotifications_notifications_of_observable(self):
"Hold all notifications of a specific observable"
center = NotificationCenter()
observable1 = _TestObservable(center, "Observable1")
observable2 = _TestObservable(center, "Observable2")
observer = NotificationTestObserver()
center.addObserver(observer, "notificationCallback", "A", observable1)
center.addObserver(observer, "notificationCallback", "B", observable1)
center.addObserver(observer, "notificationCallback", "C", observable2)
center.holdNotifications(observable=observable1)
observable1.postNotification("A")
observable1.postNotification("A")
observable1.postNotification("B")
observable2.postNotification("C")
self.assertEqual(observer.stack[-1], ("C", "Observable2"))
center.releaseHeldNotifications(observable=observable1)
self.assertEqual(observer.stack[-2], ("A", "Observable1"))
self.assertEqual(observer.stack[-1], ("B", "Observable1"))
self.assertEqual(len(observer.stack), 3)
def test_hold_and_releaseHeldNotifications_notifications_of_observable(
self):
"Hold all notifications of a specific notification"
center = NotificationCenter()
observable1 = _TestObservable(center, "Observable1")
observable2 = _TestObservable(center, "Observable2")
observer = NotificationTestObserver()
center.addObserver(observer, "notificationCallback", "A", observable1)
center.addObserver(observer, "notificationCallback", "B", observable1)
center.addObserver(observer, "notificationCallback", "C", observable2)
center.holdNotifications(notification="A")
observable1.postNotification("A")
observable1.postNotification("A")
observable1.postNotification("B")
self.assertEqual(observer.stack[-1], ("B", "Observable1"))
observable2.postNotification("C")
self.assertEqual(observer.stack[-1], ("C", "Observable2"))
center.releaseHeldNotifications(notification="A")
self.assertEqual(observer.stack[-1], ("A", "Observable1"))
self.assertEqual(len(observer.stack), 3)