errFatal(err)
		if string(resp) != string(testPayload) {
			t.Errorf("want %q, got %q", testPayload, string(resp))
		}
		t.Log("Roundtrip:", time.Since(start))
	})

	t.Run("localToRemoteErrHuge", func(t *testing.T) {
		testPayload := bytes.Repeat([]byte("!"), 1<<10)

		start := time.Now()
		resp, err := remoteConn.Request(context.Background(), handlerTest2, testPayload)
		if len(resp) != 0 {