How to prepare basic test for TimerService scheduler?

Question

Actually my code works great, unfortunately I found some problems when trying to write integration and unit tests for TimerService without preparing Arquillian container. My code, simplified:

@Startup
@Singleton
public class GeneralDataExecutor {

    @Resource
    private TimerService timerService;

    private Timer timer;

    @PostConstruct
    public void init() {
            timer = timerService.createCalendarTimer(createScheduleExpression(), createTimerConfig());
        }
    }

    @Timeout
    public void execute() {
        //some code
    }
}

Any ideas/tips how to get things done?

Answer 1

There are frameworks which help to mock the ejb-container and help to handle the asynchronity.

Look at the Example of a Timer-Bean

@Stateless
public class StatelessTimerEJB extends CountingBean {

   @PostConstruct
   public void postConstruct() {
       setPostConstructCalled();
   }

   @Timeout
   public void callAsynch()  {
       if (isPostConstructCalled()) {
           logcall();
           return;
       } else {
           logger.error("postconstruct did not work for this instance");
       }
   }
}

and how it is tested using ioc-unit Asynchronousmanager in

TestAsynchronousManager