def test_close(self): connection = Mock() channel = Mock() receiver = Mock() # test reader = Reader(None, '') reader.connection = connection reader.channel = channel reader.receiver = receiver reader.is_open = Mock(return_value=True) reader.close() # validation receiver.close.assert_called_once_with() channel.close.assert_called_once_with() self.assertFalse(connection.close.called)