if err != nil {
		t.Fatalf("failed to bind: %v", err)
	}
	lb := tcpLB{
		serverURL: serverURL,
		ln:        ln,
		t:         t,
	}
	return &lb
}

func TestIsConnectionReset(t *testing.T) {
	ts := httptest.NewUnstartedServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		fmt.Fprintf(w, "Hello, %s", r.Proto)
	}))
	ts.EnableHTTP2 = true
	ts.StartTLS()