@Mock
    private NdrBuffer mockDeferredBuffer;

    @Nested
    @DisplayName("UUID Tests")
    class UuidTests {

        @Test
        @DisplayName("Should encode UUID correctly")
        void testUuidTEncode() throws NdrException {
            // Given: A UUID with test values
            rpc.uuid_t uuid = new rpc.uuid_t();
            uuid.time_low = 0x12345678;
            uuid.time_mid = (short) 0x9ABC;