def test_authentication_controller_raises_exception_if_user_does_not_exist(self, mock_user_repository):
with self.assertRaises(AuthenticationException):
authentication_controller = Authentication()
mock_user_repository.return_value = None
authentication_controller.look_up_user('*****@*****.**')
def test_authentication_controller_returns_user_from_lookup(self, mock_user_repository):
authentication_controller = Authentication()
mock_user = MagicMock()
mock_user_repository.return_value = mock_user
self.assertEqual(authentication_controller.look_up_user('*****@*****.**'), mock_user)
def test_authentication_controller_delegates_to_user_repository(self, mock_user_repository):
authentication_controller = Authentication()
authentication_controller.look_up_user('*****@*****.**')
mock_user_repository.assert_called_with('*****@*****.**')