public void handlingEventNotFound() { cargoUpdater.updateCargo(EventSequenceNumber.ValueOf(999L)); systemEvents.AssertWasNotCalled(se => se.notifyOfCargoUpdate(Arg <Cargo> .Is.TypeOf)); systemEvents.AssertWasNotCalled(se => se.notifyOfHandlingEvent(Arg <HandlingEvent> .Is.TypeOf)); }