如何对多线程中的fakes进行单元测试？

Question

请问如下的代码如何进行单元测试？

        private void Initialize()
        {
            Task.Factory.StartNew(() =>
            {
                Parallel.Invoke(() =>
                {
                    KinectSensor kinectSensor = null;

                    // while haven't got the sensor, keep fetching
                    while (kinectSensor == null)
                    {
                        Thread.Sleep(200);
                        kinectSensor = (from sensor in KinectSensor.KinectSensors
                                        where sensor.Status == KinectStatus.Connected
                                        select sensor).FirstOrDefault();
                    }

                    _kinectService = new KinectService(kinectSensor);
                    _kinectService.SetupKinectSensor(new EventHandler<ColorImageFrameReadyEventArgs>(ColorImageFrameReadyEventHandler),
                        new EventHandler<SkeletonFrameReadyEventArgs>(SkeletonFrameReadyEventHandler));

                    DispatcherHelper.CheckBeginInvokeOnUI(() =>
                    {
                        StatusDescription = "Kinect Has connected";
                    });
                }, () =>
                {
                    IMCU mcu = null;

                    while (mcu == null)
                    {
                        Thread.Sleep(200);
                        // get mcu here
                    }

                    _mcuService = new MCUService(mcu);

                    DispatcherHelper.CheckBeginInvokeOnUI(() =>
                    {
                        StatusDescription = "MCU Has connected";
                    });
                });

                DispatcherHelper.CheckBeginInvokeOnUI(() =>
                {
                    CameraShadowColor = "#FF66B034";
                    StatusColor = "#FF66B034";
                    StatusCaption = "Ready";
                    StatusDescription = "Ready to go";
                    ButtonString = "OK";
                });
            });
        }

Answer 1

您好，

在这之前，我想我们需要考虑的是我们是用哪种方法(存根还是填充码)或者怎么样创建相应的测试？

http://msdn.microsoft.com/zh-CN/library/hh549175.aspx

Objective |   Consideration	Stub	Shim
Looking for maximum   performance?	a	a (slower)
Abstract and Virtual methods	a
Interfaces	a
Internal types	a	a
Static methods		a
Sealed types		a
Private methods		a

这是一个例子,它分享了详细的创建这种类型测试的步骤：

http://www.codeproject.com/Articles/582812/Unit-testing-with-Fakes-with-Visual-studio-Premium

希望能帮到你！

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Answer 2

根据后来我的测试，好像没有办法进行测试。。。用stub肯定不行，因为没法创建KinectSensor的实例。而用shim也不行因为他里面有一个静态属性，是ReadOnlyCollection类型的，这个在mscorlib里面，也没法用shim进行模拟，所以好像这个根本没法进行测试。。。

Answer 3

根据后来我的测试，好像没有办法进行测试。。。用stub肯定不行，因为没法创建KinectSensor的实例。而用shim也不行因为他里面有一个静态属性，是ReadOnlyCollection类型的，这个在mscorlib里面，也没法用shim进行模拟，所以好像这个根本没法进行测试。。。

如果这样，我建议你到产品组提交一个feedback：

http://connect.microsoft.com/VisualStudio/feedback/CreateFeedback.aspx

最好用英文提交，产品组会认真研究你的问题并给出相应的建议。如果你提交了反馈，你可以把链接分享给我们，这样我们也能从产品组得到最新的消息。

谢谢您的合作与支持！

---

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