用法: method_calls 除了跟踪对自身的调用外,模拟还跟踪对方法和属性的调用,以及their方法和属性: >>>mock = Mock()>>>mock.method() <Mock name='mock.method()'id='...'>>>mock.property.method.attribute() <Mock name='mock.property.method.attribute()'id='...'>>>mock.method_calls[call.meth...