@Test
  public void testOnStartCommand_handlesNullIntent() {
    JobService service = spy(new ExampleJobService());
    int startId = 7;

    try {
      service.onStartCommand(null, 0, startId);

      verify(service).stopSelf(startId);
    } catch (NullPointerException npe) {
      fail("Unexpected NullPointerException after calling onStartCommand with a null Intent.");
    }
  }
Tests for the {@link JobService} class.
jobdispatcher/src/test/java/com/firebase/jobdispatcher/JobServiceTest.java