### Question:
DatabaseService { public boolean isNotExistByName(DataBaseInfo dataBaseInfo) throws SQLException { Long n = dataBaseDao.getCountByName(dataBaseInfo.getDbname()); Long i = dataBaseDao.getCountByIdAndName(dataBaseInfo.getId(), dataBaseInfo.getDbname()); if (n == 0 || (n == 1 && i == 1)) { return true; } return false; }  ValidatorChain validatePermision(LoginUser user, Errors errors); ServiceResult isExist(List<String> db_names); ServiceResult<String> addDataBaseInfo(LoginUser user, DataBaseInfo dataBaseInfo); ServiceResult<String> genDefaultDbsetAndEntry(DataBaseInfo dataBaseInfo); ServiceResult<String> genDefaultDbsetAndEntry(Long groupId, Long dbId, String dbname, Integer dbtype); boolean isNotExistByName(DataBaseInfo dataBaseInfo); ServiceResult<String> checkupdateDBInfo(DataBaseInfo dataBaseInfo); boolean updateDBInfo(DataBaseInfo dataBaseInfo); ListResult<DataBaseView> findDbPageList(Paging<DataBaseInfo> paging); ListResult<DataBaseView> findDbPageListByUserId(Paging<DataBaseInfo> paging, Long userId); ServiceResult encryptAndOptUser(LoginUser user, List<DataBaseInfo> dBList); ServiceResult<String> addDataBaseList(List<DataBaseInfo> dBList); ServiceResult<List<String>> getDBCatalogs(Long dbsetId); ServiceResult<List<String>> getDBCatalogsByDbId(Long dbid); ServiceResult connectionTest(ConnectionRequest connectionRequest); ServiceResult deleteCheck(Long dbId); ServiceResult<String> addDataCenter(LoginUser user, List<DataBaseInfo> list); ServiceResult<String> updateDataCenter(LoginUser user, DataBaseInfo dataBaseInfo); ServiceResult<String> deleteDataCenter(LoginUser user, DataBaseInfo dataBaseInfo); ServiceResult<String> syncDataCenter(LoginUser user, DataBaseInfo dataBaseInfo); ConfigCkeckResult<List<ConfigDataResponse>> getCheckData(LoginUser user, DataBaseInfo dataBaseInfo); ServiceResult getDataBaseButton(LoginUser user);  }### Answer:
@Test public void isNotExistByNameTest() throws SQLException { DataBaseInfo groupDb = DataBaseInfo.builder().group_name("name").build(); Assert.assertTrue(databaseService.isNotExistByName(groupDb)); }