public void BasicConstructorLifeCycleTest()
{
var listenerSuccess = false;
var publisher = new TestEventPublisher();
var listener = new PropertyChangedEventListener(publisher, (sender, e) => listenerSuccess = true);
//------------------
listenerSuccess.Is(false);
publisher.RaisePropertyChanged(string.Empty);
listenerSuccess.Is(true);
//------------------
listenerSuccess = false;
listener.Dispose();
publisher.RaisePropertyChanged(string.Empty);
listenerSuccess.Is(false);
try
{
listener.RegisterHandler((sender, e) => listenerSuccess = true);
}
catch (Exception e)
{
e.GetType().Is(typeof(ObjectDisposedException));
}
}
public void MultipleHandlerLifeCycleTest()
{
var handler1Success = false;
var handler2Success = false;
var publisher = new TestEventPublisher();
var listener = new PropertyChangedEventListener(publisher);
//------------------
handler1Success.Is(false);
handler2Success.Is(false);
publisher.RaisePropertyChanged(string.Empty);
handler1Success.Is(false);
handler2Success.Is(false);
//------------------
listener.RegisterHandler((sender, e) => handler1Success = true);
publisher.RaisePropertyChanged(string.Empty);
handler1Success.Is(true);
handler2Success.Is(false);
//------------------
handler1Success = false;
handler2Success = false;
listener.RegisterHandler((sender, e) => handler2Success = true);
publisher.RaisePropertyChanged(string.Empty);
handler1Success.Is(true);
handler2Success.Is(true);
//------------------
handler1Success = false;
handler2Success = false;
listener.Dispose();
publisher.RaisePropertyChanged(string.Empty);
handler1Success.Is(false);
handler2Success.Is(false);
}
public void SourceReferenceMemoryLeakTest()
{
var handler1Called = false;
var publisherStrongReference = new TestEventPublisher();
var publisherWeakReference = new WeakReference<TestEventPublisher>(publisherStrongReference);
var listener = new PropertyChangedEventListener(publisherStrongReference);
listener.RegisterHandler("Dummy1", (sender, e) => { e.PropertyName.Is("Dummy1"); handler1Called = true; });
publisherStrongReference.RaisePropertyChanged("Dummy1");
handler1Called.Is(true);
listener.Dispose();
publisherStrongReference = null;
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
TestEventPublisher resultPublisher = null;
publisherWeakReference.TryGetTarget(out resultPublisher).Is(false);
resultPublisher.IsNull();
}
public void MultiThreadHandlerTest()
{
var publisher = new TestEventPublisher();
var listener = new PropertyChangedEventListener(publisher);
var handlerCalledCount = 0;
var parentTask = new Task(() =>
{
var tf = new TaskFactory(TaskCreationOptions.AttachedToParent, TaskContinuationOptions.AttachedToParent);
for (int i = 0; i < 50; i++)
{
tf.StartNew(() =>
{
for (int f = 0; f < 500; f++)
{
listener.RegisterHandler("Dummy1", (sender, e) => { e.PropertyName.Is("Dummy1"); handlerCalledCount++; });
}
});
}
});
parentTask.Start();
parentTask.Wait();
handlerCalledCount.Is(0);
publisher.RaisePropertyChanged("Dummy1");
handlerCalledCount.Is(25000);
handlerCalledCount = 0;
listener.Dispose();
publisher.RaisePropertyChanged("Dummy1");
handlerCalledCount.Is(0);
}
public void AddHandlerKindTest()
{
var handler1Called = false;
var handler2Called = false;
var handler3Called = false;
var handler4Called = false;
var handler5Called = false;
var publisher = new TestEventPublisher();
var listener1 = new PropertyChangedEventListener(publisher)
{
{"Dummy1", (sender, e) => { e.PropertyName.Is("Dummy1"); handler1Called = true; }},
{() => publisher.Dummy2,
(sender, e) => { e.PropertyName.Is("Dummy2"); handler2Called = true;},
(sender, e) => { e.PropertyName.Is("Dummy2"); handler3Called = true;}
},
(sender,e) => handler4Called = true,
{"Dummy1", (sender, e) => { e.PropertyName.Is("Dummy1"); handler5Called = true; }}
};
publisher.RaisePropertyChanged(null);
handler1Called.Is(false);
handler2Called.Is(false);
handler3Called.Is(false);
handler4Called.Is(true);
handler5Called.Is(false);
handler4Called = false;
publisher.RaisePropertyChanged("Dummy1");
handler1Called.Is(true);
handler2Called.Is(false);
handler3Called.Is(false);
handler4Called.Is(true);
handler5Called.Is(true);
handler1Called = false;
handler4Called = false;
handler5Called = false;
publisher.RaisePropertyChanged("Dummy2");
handler1Called.Is(false);
handler2Called.Is(true);
handler3Called.Is(true);
handler4Called.Is(true);
handler5Called.Is(false);
handler1Called = false;
handler2Called = false;
handler3Called = false;
handler4Called = false;
handler5Called = false;
listener1.Dispose();
publisher.RaisePropertyChanged("Dummy1");
publisher.RaisePropertyChanged("Dummy2");
handler1Called.Is(false);
handler2Called.Is(false);
handler3Called.Is(false);
handler4Called.Is(false);
handler5Called.Is(false);
}
public void FilteredHandlerLifeCycleTest()
{
var handler1Called = false;
var handler2Called = false;
var handler3Called = false;
var publisher = new TestEventPublisher();
var listener = new PropertyChangedEventListener(publisher);
listener.RegisterHandler("Dummy1", (sender, e) => { e.PropertyName.Is("Dummy1"); handler1Called = true; });
listener.RegisterHandler("Dummy2", (sender, e) => { e.PropertyName.Is("Dummy2"); handler2Called = true; });
listener.RegisterHandler("Dummy1", (sender, e) => { e.PropertyName.Is("Dummy1"); handler3Called = true; });
publisher.RaisePropertyChanged("Dummy1");
publisher.RaisePropertyChanged("Dummy2");
handler1Called.Is(true);
handler2Called.Is(true);
handler3Called.Is(true);
//------------------
handler1Called = false;
handler2Called = false;
handler3Called = false;
listener.Dispose();
publisher.RaisePropertyChanged("Dummy1");
publisher.RaisePropertyChanged("Dummy2");
handler1Called.Is(false);
handler2Called.Is(false);
handler3Called.Is(false);
}
