相关疑难解决方法(0)

我正在使用Silverlight单元测试框架来测试一些View Manager类.某些测试需要触发PropertyChanged事件.

我目前正在使用EnqueueConditional和WaitHandles的组合

例1

[TestMethod]
[Asynchronous]
[Timeout(1000)]
public void TestNotificationExample()
{
    var manager = new UserManager();

    var waitHandle = new ManualResetEvent(false);
    manager.PropertyChanged += (sender, propChangArgs) =>
                                {
                                    waitHandler.Set();
                                };
    manager.DoTheThingThatTriggersNotification();
    // The notification event fires aynshronously to this
    EnqueueConditional (() => waitHandler.WaitOne(0));
    // Enqueue other tests here....
    EnqueueTestComplete();
}

这有效.但我有些问题唠叨着我:

我真的需要使用WaitHandle吗？如果我只使用一个bool,它会表现得同样如此吗？

例2

bool fHasFiredEvent = false;
manager.PropertyChanged += (sender, propChangeArgs) =>
                           { 
                               fHasFiredEvent = true;
                           }
manager.DoTheThingThatTriggersNotification();    
EnqueueConditional (() => fHasFiredEvent);
EnqueueTestComplete();

或者如果我保留WaitHandle会更好,但会丢失TimeoutAttribute并在等待时间超时？

例3 …