public void Can_use_unsubscribe_from_delegate_handler()
{
var eventAggregator = new EventAggregator();
SomeMessage messageTrapped = null;
var disposable = eventAggregator.AddListenerAction <SomeMessage>(msg => { messageTrapped = msg; });
disposable.Dispose();
eventAggregator.SendMessage <SomeMessage>();
messageTrapped.ShouldBeNull();
}
