}
func testTLSHandshakeTimeout(t *testing.T, mode testMode) {
	errLog := new(strings.Builder)
	cst := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {}),
		func(ts *httptest.Server) {
			ts.Config.ReadTimeout = 250 * time.Millisecond
			ts.Config.ErrorLog = log.New(errLog, "", 0)
		},
	)
	ts := cst.ts