@Override
    public SocialClientDO getSocialClient(Long id) {
        return socialClientMapper.selectById(id);
    }
@Test
    public void testGetSocialClient() {
        // mock 数据
        SocialClientDO dbSocialClient = randomPojo(SocialClientDO.class);
        socialClientMapper.insert(dbSocialClient);// @Sql: 先插入出一条存在的数据
        // 准备参数
        Long id = dbSocialClient.getId();

        // 调用
        SocialClientDO socialClient = socialClientService.getSocialClient(id);
        // 校验数据正确
        assertPojoEquals(dbSocialClient, socialClient);
    }