### Question:
ReviewService { @Transactional public int update(ReviewStatus reviewStatus, long id, String reviewer, long snapshotId, long zkMtime) throws ShepherException { snapshotBiz.update(snapshotId, reviewStatus, reviewer, zkMtime); return reviewBiz.update(id, reviewStatus, reviewer); }  @Transactional long create(String cluster, String path, String data, User creator, Action action, ReviewStatus reviewStatus); @Transactional int update(ReviewStatus reviewStatus, long id, String reviewer, long snapshotId, long zkMtime); @Transactional int accept(long id, String reviewer, ReviewRequest reviewRequest); @Transactional int refuse(long id, String reviewer, ReviewRequest reviewRequest); ReviewRequest get(long id); @Transactional void rejectIfExpired(ReviewRequest reviewRequest); int delete(long id);  }### Answer:
@Test public void testUpdate() throws Exception { int result = reviewService.update(ReviewStatus.ACCEPTED, 1L, "reviewer", 0L, 0L); Assert.assertNotEquals(0, result); }