如何确保在循环中调用所有处理程序?我想出的最好方法是模拟fake_handler函数并检查该函数是否被调用了一定次数,但我认为可能有更好的解决方案。class MessageHandler: def __init__(self, handlers=None): self.handlers = handlers or [] def handle(self, event, body): for handler in self.handlers: handler(event, body)测试:def fake_handler(*args, **kwargs): passclass TestMessageHandler(TestCase): @patch('tests.test_handlers.fake_handler') def test_handle(self, fake_handler_mock): messages = MessageHandler([fake_handler_mock, fake_handler_mock]) messages.handle(None, None) self.assertEqual(fake_handler_mock.call_count, 2)
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