// Create upstream fake SPDY server which copies STDIN back onto STDOUT stream.
	spdyServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
		ctx, err := createSPDYServerStreams(w, req, Options{
			Stdin:  true,
			Stdout: true,
		})
		if err != nil {
			t.Errorf("error on createHTTPStreams: %v", err)
			return
		}
		defer ctx.conn.Close()