return nil, err
		}
		m := mux.NewRouter()
		m.Handle(RoutePath, manager.Handler())
		res.Managers = append(res.Managers, manager)
		res.Servers = append(res.Servers, startHTTPServer(listeners[i], m))
		res.Listeners = append(res.Listeners, listeners[i])
		res.Mux = append(res.Mux, m)
	}
	xioutil.SafeClose(ready)
	for _, m := range res.Managers {
		for _, remote := range m.Targets() {

func Reference[E any](s []E) []*E {
	res := make([]*E, 0, len(s))
	for _, v := range s {
		v := v
		res = append(res, &v)
	}
	return res
}

// Dereference returns all non-nil references, dereferenced
func Dereference[E any](s []*E) []E {
	res := make([]E, 0, len(s))
	for _, v := range s {
		if v != nil {
			res = append(res, *v)
		}
	}
	return res
}

func getVIPs(svc *v1.Service) []string {
	res := []string{}
	if svc.Spec.ClusterIP != "" && svc.Spec.ClusterIP != v1.ClusterIPNone {
		res = append(res, svc.Spec.ClusterIP)
	}
	for _, ing := range svc.Status.LoadBalancer.Ingress {
		// IPs are strictly optional for loadbalancers - they may just have a hostname.
		if ing.IP != "" {
			res = append(res, ing.IP)
		}
	}
	return res

				req.Header.Set(k, v)
			}

			c := ts.Client()
			res, err := c.Do(req)
			if err != nil {
				t.Fatal(err)
			}
			io.Copy(io.Discard, res.Body)
			res.Body.Close()
			if res.StatusCode != tt.wantStatus {
				t.Errorf("test %q using %q: got status = %d; want %d", testName, method, res.StatusCode, tt.wantStatus)
			}
			if g, e := res.Header.Get("Content-Type"), tt.wantContentType; g != e {

func List[T cmp.Ordered](s Set[T]) []T {
	res := make(sortableSliceOfGeneric[T], 0, len(s))
	for key := range s {
		res = append(res, key)
	}
	sort.Sort(res)
	return res
}

// UnsortedList returns the slice with contents in random order.
func (s Set[T]) UnsortedList() []T {
	res := make([]T, 0, len(s))
	for key := range s {
		res = append(res, key)
	}
	return res
}

			TypeUrl:       w.TypeUrl,
			ResourceNames: req.Delta.Subscribed.UnsortedList(),
		}
	}
	res, logdata, err := gen.Generate(con.proxy, w, req)
	info := ""
	if len(logdata.AdditionalInfo) > 0 {
		info = " " + logdata.AdditionalInfo
	}
	if len(logFiltered) > 0 {
		info += logFiltered
	}
	if err != nil || res == nil {
		// If we have nothing to send, report that we got an ACK for this version.

        httpBuildCacheServer.addResponder { req, res ->
            if (req.method == "PUT") {
                res.setHeader("location", "/ok")
                res.setStatus(301)
                res.writer.close()
                false
            } else if (req.requestURI == "/ok") {
                res.setStatus(200)
                res.writer.close()
                false
            } else {

            ProjectBuildingResult res;
            if (request.getPath().isPresent()) {
                Path path = request.getPath().get();
                res = builder.build(path.toFile(), req);
            } else if (request.getSource().isPresent()) {
                Source source = request.getSource().get();
                ModelSource2 modelSource = new SourceWrapper(source);
                res = builder.build(modelSource, req);

	res := sets.New(existing...)
	res.InsertAll(request.ResourceNamesSubscribe...)
	// This is set by Envoy on first request on reconnection so that we are aware of what Envoy knows
	// and can continue the xDS session properly.
	for k := range request.InitialResourceVersions {
		res.Insert(k)
	}
	res.DeleteAll(request.ResourceNamesUnsubscribe...)
	wildcard := false

// checkTrace walks over a good trace and makes a bunch of additional checks
// that may not cause the parser to outright fail.
func checkTrace(t *testing.T, ver int, res Trace) {
	for i := 0; i < res.Events.Len(); i++ {
		ev := res.Events.Ptr(i)
		if ver >= 21 {
			if ev.Type == EvSTWStart && res.Strings[ev.Args[0]] == "unknown" {
				t.Errorf("found unknown STW event; update stwReasonStrings?")
			}
		}
	}
}