byte[] bytes = original.toByteArray();
        NegTokenTarg roundTrip = new NegTokenTarg(bytes);

        // Assert – all getters match the original values
        assertEquals(NegTokenTarg.ACCEPT_COMPLETED, roundTrip.getResult(), "result should roundtrip");
        assertEquals(mech, roundTrip.getMechanism(), "mechanism should roundtrip");
        assertArrayEquals(tokenArray, roundTrip.getMechanismToken(), "mechanism token should roundtrip");

			t.Errorf("want %q, got %q", testPayload, string(resp))
		}
		t.Log("Roundtrip:", time.Since(start))
	})

	t.Run("localToRemoteErr", func(t *testing.T) {
		const testPayload = "Hello Grid World!"
		start := time.Now()
		resp, err := remoteConn.Request(t.Context(), handlerTest2, []byte(testPayload))
		t.Log("Roundtrip:", time.Since(start))
		if len(resp) != 0 {
			t.Errorf("want nil, got %q", string(resp))
		}

}

// uaTransport - User-Agent  transport
type uaTransport struct {
	ua string
	rt http.RoundTripper
}

func (u *uaTransport) RoundTrip(req *http.Request) (*http.Response, error) {
	req2 := req.Clone(req.Context())
	req2.Header.Set("User-Agent", u.ua)
	return u.rt.RoundTrip(req2)
}

// WithUserAgent wraps an existing transport with custom User-Agent

        context.setMaxCacheAge(60000L);
        context.setNotificationEnabled(true);
        context.setNotificationFilter(0x1F);

        // Test encoding and decoding roundtrip
        byte[] buffer = new byte[context.size()];
        int encoded = context.encode(buffer, 0);
        assertEquals(context.size(), encoded);

		LastPong:           time.Now().UnixNano(),
		BaseFlags:          parent.baseFlags,
		clientPingInterval: parent.clientPingInterval,
	}
}

// roundtrip performs a roundtrip, returning the first response.
// This cannot be used concurrently.
func (m *muxClient) roundtrip(h HandlerID, req []byte) ([]byte, error) {
	if m.init {
		return nil, errors.New("mux client already used")
	}
	m.init = true
	m.singleResp = true

        assertEquals(1, destinationBuffer[dstIndex + 20]); // deletePending
        assertEquals(0, destinationBuffer[dstIndex + 21]); // directory
    }

    @Test
    @DisplayName("Test encode and decode roundtrip")
    void testEncodeDecodeRoundtrip() throws SMBProtocolDecodingException {
        // Setup first instance with test data
        byte[] originalBuffer = new byte[22];
        long expectedAllocationSize = 32768L;

            byte[] bytes = SID.toByteArray(st);

            // Act: construct from bytes and re-encode
            SID sid = new SID(bytes, 0);
            byte[] roundTrip = sid.toByteArray();

            // Assert
            assertArrayEquals(bytes, roundTrip);
            assertEquals("S-1-5-10-20", sid.toString());
        }

        @Test

            assertTrue(ctx.isPreferredMech(mech1), "first supported is preferred");
            assertArrayEquals(new ASN1ObjectIdentifier[] { mech1, mech2 }, ctx.getSupportedMechs(), "supported mechs");

            // MIC roundtrip: calculate then verify
            byte[] data = new byte[] { 10, 20, 30 };
            byte[] mic = ctx.calculateMIC(data);
            assertNotNull(mic);
            ctx.verifyMIC(data, mic); // should not throw

            assertArrayEquals(new byte[] { (byte) 0xAA, (byte) 0xBB, (byte) 0xCC, (byte) 0xDD, (byte) 0xEE, (byte) 0xFF }, uuid.node);
        }

        @Test
        @DisplayName("Should handle encode-decode roundtrip correctly")
        void testUuidTEncodeDecodeRoundtrip() throws NdrException {
            // Given: An original UUID with specific values
            rpc.uuid_t originalUuid = new rpc.uuid_t();

            assertTrue(result.length > 0, "Result should not be empty");

            // Verify round-trip conversion
            String roundTrip = new String(result, StandardCharsets.UTF_16LE);
            assertEquals(UNICODE_STRING, roundTrip, "Round-trip conversion should preserve Unicode");
        }

        @Test
        @DisplayName("getASCIIBytes should encode string as ASCII")