public void totalWorkingTime() { //Setup string jobname = "totalWorkingTime"; JobManager manager = new JobManager(); //Execute manager.CreateNewJob(jobname); manager.StartJob(jobname); System.Threading.Thread.Sleep(1000); //Test Assert.IsTrue(manager.totalWorkingTime(jobname).StartsWith("00:00:")); manager.StopJob(jobname); string time = manager.totalWorkingTime(jobname); manager.StartJob(jobname); System.Threading.Thread.Sleep(1000); Assert.IsTrue(time.CompareTo(manager.totalWorkingTime(jobname)) != 0); }