Fix doh flaky test am: 6ac664e7

        ip_addr: &str,

        mark: u32,

        cert_path: Option<&str>,

    ) -> Result<Box<DohDispatcher>> {

        // Setup socket

        let udp_sk = make_doh_udp_socket(&ip_addr, mark)?;

        DohDispatcher::new_with_socket(url, ip_addr, mark, cert_path, udp_sk)

    }

    fn new_with_socket(

        url: &str,

        ip_addr: &str,

        mark: u32,

        cert_path: Option<&str>,

        udp_sk: std::net::UdpSocket,

    ) -> Result<Box<DohDispatcher>> {

        let url = Url::parse(&url.to_string())?;

        if url.domain().is_none() {

            return Err(anyhow!("no domain"));

        }

        // Setup socket

        let udp_sk = make_doh_udp_socket(&ip_addr, mark)?;

        // Setup quiche config

        let config = create_quiche_config(cert_path)?;

        let h3_config = h3::Config::new()?;

    const SAMPLE_QUERY: &str = "q80BAAABAAAAAAAAA3d3dwdleGFtcGxlA2NvbQAAAQAB";

    #[test]

    fn close_doh() {

        let doh = DohDispatcher::new(GOOGLE_DNS_URL, GOOGLE_DNS_IP, 0, None).unwrap();

        let udp_sk = super::make_doh_udp_socket(LOOPBACK_ADDR, TEST_MARK).unwrap();

        let doh =

            DohDispatcher::new_with_socket(GOOGLE_DNS_URL, GOOGLE_DNS_IP, 0, None, udp_sk).unwrap();

        let (resp_tx, resp_rx) = oneshot::channel();

        let cmd = Command::DohQuery { query: SAMPLE_QUERY.as_bytes().to_vec(), resp: resp_tx };

        assert!(doh.query(cmd).is_ok(), "Send query failed");