### Question:
SystemServiceImpl implements SystemService { public void insertSystem(DJSystem system) { systemDao.inserte(system); }  void setSystemDao(SystemDao systemDao); List<DJSystem> findRolesSortBySystem(); List<DJSystem> findUsersSortBySystem(); List<DJSystem> findResourcesSortBySystem(); List<DJSystem> findMenusSortBySystem(); void insertSystem(DJSystem system); DJSystem findSystemBySystemId(Integer systemId); void updateSystem(DJSystem system);  }### Answer:
@Test public void insertSystem() { DJSystem system = DomainUtil.getSystem(); systemService.insertSystem(system); }