attribute.Stringer("namespace", &lazyNamespace{req: req}),
		attribute.String("protocol", req.Proto),
		attribute.Stringer("resource", &lazyResource{req: req}),
		attribute.Stringer("scope", &lazyScope{req: req}),
		attribute.String("url", req.URL.Path),
		attribute.Stringer("user-agent", &lazyTruncatedUserAgent{req: req}),
		attribute.Stringer("verb", &lazyVerb{req: req}),
	}

)

func TestLazyTruncatedUserAgent(t *testing.T) {
	req := &http.Request{}
	req.Header = http.Header{}

	ua := "short-agent"
	req.Header.Set("User-Agent", ua)
	uaNotTruncated := &lazyTruncatedUserAgent{req}
	assert.Equal(t, ua, fmt.Sprintf("%v", uaNotTruncated))

	ua = ""
	for i := 0; i < maxUserAgentLength*2; i++ {
		ua = ua + "a"
	}
	req.Header.Set("User-Agent", ua)
	uaTruncated := &lazyTruncatedUserAgent{req}

		}
	}

	if xfPort := req.Header.Get(xForwardedPort); xfPort == "" {
		req.Header.Set(xForwardedPort, forwardedPort(req))
	}

	if xfHost := req.Header.Get(xForwardedHost); xfHost == "" && req.Host != "" {
		req.Header.Set(xForwardedHost, req.Host)
	}
}

func forwardedPort(req *http.Request) string {
	if req == nil {
		return ""
	}

	if _, port, err := net.SplitHostPort(req.Host); err == nil && port != "" {

func (h *HTTPProxyHandler) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
	h.handlerDone.Add(1)
	defer h.handlerDone.Done()

	if h.hook != nil {
		if ok := h.hook(req); !ok {
			rw.WriteHeader(http.StatusInternalServerError)
			return
		}
	}

	b, err := httputil.DumpRequest(req, false)
	if err != nil {
		h.t.Logf("Failed to dump request, host=%s: %v", req.Host, err)
	} else {

	}
}

func (a *AdsTest) fillInRequestDefaults(req *discovery.DiscoveryRequest) *discovery.DiscoveryRequest {
	if req == nil {
		req = &discovery.DiscoveryRequest{}
	}
	if req.TypeUrl == "" {
		req.TypeUrl = a.Type
	}
	if req.Node == nil {
		req.Node = &core.Node{
			Id:       a.ID,
			Metadata: a.metadata.ToStruct(),
		}
	}
	return req
}

}

func (a *DeltaAdsTest) fillInRequestDefaults(req *discovery.DeltaDiscoveryRequest) *discovery.DeltaDiscoveryRequest {
	if req == nil {
		req = &discovery.DeltaDiscoveryRequest{}
	}
	if req.TypeUrl == "" {
		req.TypeUrl = a.Type
	}
	if req.Node == nil {
		req.Node = &core.Node{
			Id:       a.ID,
			Metadata: a.metadata.ToStruct(),
		}
	}
	return req
}

		c, err := ln.Accept()
		if err != nil {
			t.Error(err)
			return
		}
		connc <- c
	}()

	tr := new(Transport)
	req, _ := NewRequest("GET", "http://"+ln.Addr().String(), nil)
	req = req.WithT(t)
	ctx, cancel := context.WithCancelCause(context.Background())
	treq := &transportRequest{Request: req, ctx: ctx, cancel: cancel}
	cm := connectMethod{targetScheme: "http", targetAddr: ln.Addr().String()}
	pc, err := tr.getConn(treq, cm)

	}
	return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
		authenticationStart := time.Now()

		if len(apiAuds) > 0 {
			req = req.WithContext(authenticator.WithAudiences(req.Context(), apiAuds))
		}
		resp, ok, err := auth.AuthenticateRequest(req)
		authenticationFinish := time.Now()
		defer func() {
			metrics(req.Context(), resp, ok, err, apiAuds, authenticationStart, authenticationFinish)
		}()

	reqURI := req.RequestURI
	if reqURI == "" {
		reqURI = req.URL.RequestURI()
	}

	fmt.Fprintf(&b, "%s %s HTTP/%d.%d\r\n", valueOrDefault(req.Method, "GET"),
		reqURI, req.ProtoMajor, req.ProtoMinor)

	absRequestURI := strings.HasPrefix(req.RequestURI, "http://") || strings.HasPrefix(req.RequestURI, "https://")
	if !absRequestURI {
		host := req.Host
		if host == "" && req.URL != nil {

)

func TestFIFOWithEnqueueDequeueSingleRequest(t *testing.T) {
	req := &request{}

	list := newRequestFIFO()
	list.Enqueue(req)

	reqGot, ok := list.Dequeue()
	if !ok {
		t.Errorf("Expected true, but got: %t", ok)
	}
	if req != reqGot {
		t.Errorf("Expected dequued request: (%p), but got: (%p)", req, reqGot)
	}
	if list.Length() != 0 {