@VisibleForTesting
    public void validateDictDataValueUnique(Long id, String dictType, String value) {
        DictDataDO dictData = dictDataMapper.selectByDictTypeAndValue(dictType, value);
        if (dictData == null) {
            return;
        }
        // 如果 id 为空，说明不用比较是否为相同 id 的字典数据
        if (id == null) {
            throw exception(DICT_DATA_VALUE_DUPLICATE);
        }
        if (!dictData.getId().equals(id)) {
            throw exception(DICT_DATA_VALUE_DUPLICATE);
        }
    }
@Test
    public void testValidateDictDataValueUnique_success() {
        // 调用，成功
        dictDataService.validateDictDataValueUnique(randomLongId(), randomString(), randomString());
    }