@Override
    protected void doInit() {
        // 实例化一个认证对象，入参需要传入腾讯云账户密钥对 secretId，secretKey
        Credential credential = new Credential(getApiKey(), properties.getApiSecret());
        client = new SmsClient(credential, ENDPOINT);
    }
@Test
    public void testDoInit() {
        // 准备参数
        // mock 方法

        // 调用
        smsClient.doInit();
        // 断言
        assertNotSame(client, ReflectUtil.getFieldValue(smsClient, "client"));
    }