continue
			}
			t.Run(clients[i].Net+"-"+tt.name, func(t *testing.T) {
				m := new(dns.Msg)
				q := dns.TypeA
				if tt.queryAAAA {
					q = dns.TypeAAAA
				}
				m.SetQuestion(tt.host, q)
				if tt.modifyReq != nil {
					tt.modifyReq(m)
				}
				if tt.id != 0 {
					currentID.Store(int32(tt.id))
					defer func() { currentID.Store(0) }()
				}

	var out []string
	errs := istiomultierror.New()

	var mu sync.Mutex
	var wg sync.WaitGroup
	doResolve := func(dnsType uint16) {
		defer wg.Done()

		res := n.client.Query(new(dns.Msg).SetQuestion(dns.Fqdn(name), dnsType))

		mu.Lock()
		defer mu.Unlock()
		if res.Rcode == dns.RcodeServerFailure {
			errs = multierror.Append(errs, fmt.Errorf("upstream dns failure, qtype: %v", dnsType))
			return
		}