public void HandleWeakEvent()
{
Dummy dummy = new Dummy();
bool weakEventReceived = false;
var listener = new WeakEventListener<PropertyChangedEventArgs>((sender, eventArgs) => weakEventReceived = true);
PropertyChangedEventManager.AddListener(dummy, listener, String.Empty);
dummy.RaisePropertyChanged();
Assert.IsTrue(weakEventReceived);
weakEventReceived = false;
}
public void AllowsGarbageCollection()
{
Dummy dummy = new Dummy();
bool weakEventReceived = false;
var listener = new WeakEventListener<PropertyChangedEventArgs>((sender, eventArgs) => weakEventReceived = true);
PropertyChangedEventManager.AddListener(dummy, listener, String.Empty);
WeakReference weakReference = new WeakReference(listener);
listener = null;
GC.Collect();
Assert.IsFalse(weakReference.IsAlive);
Assert.IsFalse(weakEventReceived);
}