def setUp(self):
self.target = EventTarget()
self.mock = MagicMock(_is_coroutine=False)
self.e = Event("click")
class TestEventTarget(TestCase):
def setUp(self):
self.target = EventTarget()
self.mock = MagicMock(_is_coroutine=False)
self.e = Event("click")
def test_event_dispatch(self):
self.target.addEventListener("click", self.mock)
self.assertEqual(len(self.target._listeners), 1)
self.target.dispatchEvent(self.e)
self.mock.assert_called_once_with(self.e)
def test_event_dispatch_empty(self):
self.target.dispatchEvent(self.e)
self.mock.assert_not_called()
def test_event_dispatch_multi(self):
e1 = Event("click")
e2 = Event("click")
self.target.addEventListener("click", self.mock)
self.target.dispatchEvent(e1)
self.target.dispatchEvent(e2)
self.assertEqual(self.mock.call_count, 2)
self.mock.assert_has_calls([call(e1), call(e2)])
def test_defferent_event_dispatch(self):
mock1 = MagicMock(_is_coroutine=False)
mock2 = MagicMock(_is_coroutine=False)
e1 = Event("click")
e2 = Event("event")
self.target.addEventListener("click", mock1)
self.target.addEventListener("event", mock2)
self.assertEqual(len(self.target._listeners), 2)
self.target.dispatchEvent(e1)
mock1.assert_called_once_with(e1)
mock2.assert_not_called()
self.target.dispatchEvent(e2)
mock1.assert_called_once_with(e1)
mock2.assert_called_once_with(e2)
def test_remove_event(self):
self.target.addEventListener("click", self.mock)
self.target.removeEventListener("click", self.mock)
self.target.dispatchEvent(self.e)
self.mock.assert_not_called()
def test_remove_event_multi(self):
self.target.addEventListener("click", self.mock)
self.assertEqual(len(self.target._listeners), 1)
self.target.removeEventListener("click", self.mock)
self.assertEqual(len(self.target._listeners), 0)
self.target.dispatchEvent(self.e)
self.mock.assert_not_called()
