### Question:
MenuServiceImpl implements MenuService { public DJMenu findMenuByMenuId(Integer id) { return menuDao.findMenuByMenuId(id); }  void setMenuDao(MenuDao menuDao); void setSystemDao(SystemDao systemDao); DJMenu findMenuByMenuId(Integer id); void insertMenu(DJMenu menu); void updateMenu(DJMenu menu);  }### Answer:
@Test public void testFindMenuByMenuId() throws Exception { }