public void Suspends_Relaying() { Enum expectedType = SupportEvent.Type.TYPE1; subject.RelayEvent(expectedType); subject.Suspend(); localDispatcher.Verify( _localDispatcher => _localDispatcher.RemoveEventListener( It.Is <Enum> (arg1 => arg1 == expectedType), It.IsAny <Action <IEvent> >() ), Times.Once); }