code: @Test public void assertTriggerJobIfShutdown() throws NoSuchFieldException, SchedulerException {
    JobKey jobKey=new JobKey("test_job");
    when(jobDetail.getKey()).thenReturn(jobKey);
    when(scheduler.isShutdown()).thenReturn(true);
    ReflectionUtils.setFieldValue(jobScheduleController,"scheduler",scheduler);
    ReflectionUtils.setFieldValue(jobScheduleController,"jobDetail",jobDetail);
    jobScheduleController.triggerJob();
    verify(jobDetail,times(0)).getKey();
    verify(scheduler,times(0)).triggerJob(jobKey);
  }
  