static WeakReference RegisterSomeWeak(SystemEventSource ses)
{
var mock = new Mock <INotificationEventObserver>();
ses.Subscribe(mock.Object);
return(new WeakReference(mock, true));
}
public void SusbscribeAndUnsubscribve()
{
// prepare
var expected = new NotificationEvent(null !);
var mock = new Mock <INotificationEventObserver>();
var ses = new SystemEventSource(null);
// act
ses.Subscribe(mock.Object);
ses.Unsubscribe(mock.Object);
ses.SendEvent(expected);
// verify
mock.AssertNoOtherCalls();
Assert.Equal(0, ses.GetObserversCount());
}
public void SubscribeAndSendEvent()
{
// prepare
var expected = new NotificationEvent(null !);
var mock = new Mock <INotificationEventObserver>();
var ses = new SystemEventSource(null);
// act
ses.Subscribe(mock.Object);
ses.SendEvent(expected);
// verify
Assert.Equal(1, ses.GetObserversCount());
mock.Assert(f => f.OnNotificationReceived(
The <NotificationEvent> .Is(ne => ReferenceEquals(expected, ne))));
}
public void UnsubscribeAndGC()
{
// prepare
var ses = new SystemEventSource(null);
var wr = RegisterSomeWeak(ses);
Assert.Equal(1, ses.GetObserversCount());
// act
GC.Collect();
GC.WaitForPendingFinalizers();
ses.Unsubscribe(null !);
// verify
Assert.Equal(0, ses.GetObserversCount());
Assert.Null(wr.Target);
}
public void PlatformSendPendingEvents()
{
// prepare
var expected = new NotificationEvent(null !);
Platform.AddPendingEvent(expected);
var ses = new SystemEventSource(null);
var mock = new Mock <INotificationEventObserver>();
ses.Subscribe(mock.Object);
// act
ses.SendPendingEvents();
Assert.Same(expected: ses, Platform.SystemEventSource);
mock.Assert(f => f.OnNotificationReceived(
The <NotificationEvent> .Is(result => ReferenceEquals(expected, result))), Invoked.Once);
}
