### Question:
UserServiceImpl implements UserService { public List<User> getUserListByTime(Long startTime, Long endTime) { return null; }  User getUserInfoById(Long userId); Long getUserCounts(); List<User> getUserList(); List<User> getUserListByTime(Long startTime, Long endTime); int updateUserEmail(String email, String password); int updateUserPwd(String email, String old_password,String new_password); int updateUserImg(String email, String imgUrl); int updateUserInfo(User user); User user_login(String email, String passsword); int user_regist(String email, String password, String user_name); User check_email(String email); int insertToUserRecord_click(long uid, long aid); User adminUserLogin(Long userId, String password); int setController(int module_id, long user_id);  }### Answer:
@Test public void getUserListByTime() throws Exception { }