*/
    @Test
    @DisplayName("Test SMB_COM_TREE_DISCONNECT command value is 0x71")
    public void testCommandValue() {
        // Given
        smbComTreeDisconnect = new SmbComTreeDisconnect(config);

        // When
        int command = smbComTreeDisconnect.getCommand();

        // Then
        assertEquals(0x71, command & 0xFF);
        assertEquals(ServerMessageBlock.SMB_COM_TREE_DISCONNECT, (byte) command);

            assertEquals((byte) 0x71, ServerMessageBlock.SMB_COM_TREE_DISCONNECT);
            assertEquals((byte) 0x72, ServerMessageBlock.SMB_COM_NEGOTIATE);
            assertEquals((byte) 0x73, ServerMessageBlock.SMB_COM_SESSION_SETUP_ANDX);
            assertEquals((byte) 0x74, ServerMessageBlock.SMB_COM_LOGOFF_ANDX);
            assertEquals((byte) 0x75, ServerMessageBlock.SMB_COM_TREE_CONNECT_ANDX);

    static final byte SMB_COM_NEGOTIATE = (byte) 0x72;
    static final byte SMB_COM_SESSION_SETUP_ANDX = (byte) 0x73;
    static final byte SMB_COM_LOGOFF_ANDX = (byte) 0x74;
    static final byte SMB_COM_TREE_CONNECT_ANDX = (byte) 0x75;
    static final byte SMB_COM_NT_TRANSACT = (byte) 0xA0;
    static final byte SMB_COM_NT_TRANSACT_SECONDARY = (byte) 0xA1;

     */
    public static final byte SMB_COM_TREE_DISCONNECT = (byte) 0x71;

    /**
     * SMB command to negotiate protocol dialect.
     */
    public static final byte SMB_COM_NEGOTIATE = (byte) 0x72;

    /**
     * SMB command to setup a session with extended attributes.
     */
    public static final byte SMB_COM_SESSION_SETUP_ANDX = (byte) 0x73;

    /**

        PrintStream ps = new PrintStream(baos);

        // Test with control characters and printable characters
        byte[] data = { 0x00, 0x01, 0x09, 0x0A, 0x0D, 0x1F, // Control characters
                0x20, 0x41, 0x42, 0x7E, // Printable characters
                (byte) 0x7F, (byte) 0x80, (byte) 0xFF // Extended/control
        };

        Hexdump.hexdump(ps, data, 0, data.length);
        String output = baos.toString();

    }

    @Test
    @DisplayName("Test setCommand with various SMB command codes")
    void testSetCommandWithVariousCodes() {
        // Test common SMB command codes
        int[] commandCodes = { 0x00, 0x72, 0x73, 0x74, 0x75, 0xFF };

        for (int command : commandCodes) {
            doNothing().when(messageBlock).setCommand(command);
            when(messageBlock.getCommand()).thenReturn(command);

        src[srcIndex + 1] = 0x0C;
        // Record type (NBSTAT = 0x0021)
        src[srcIndex + 2] = 0x00;
        src[srcIndex + 3] = 0x21;
        // Record class (IN = 0x0001)
        src[srcIndex + 4] = 0x00;
        src[srcIndex + 5] = 0x01;
        // TTL (4 bytes)
        src[srcIndex + 6] = 0x00;
        src[srcIndex + 7] = 0x00;
        src[srcIndex + 8] = 0x00;
        src[srcIndex + 9] = 0x00;

        assertNull(serverData.guid);
    }

    /**
     * Test setting and getting byte field (sflags)
     */
    @ParameterizedTest
    @ValueSource(bytes = { 0x00, 0x01, 0x7F, (byte) 0x80, (byte) 0xFF })
    @DisplayName("Test sflags field with various byte values")
    public void testSflagsField(byte value) {
        // When
        serverData.sflags = value;

        // Then

    class FragmentFlagTests {

        @Test
        @DisplayName("DCERPC_FIRST_FRAG should have correct value")
        void testDcerpcFirstFrag() {
            assertEquals(0x01, DcerpcConstants.DCERPC_FIRST_FRAG, "DCERPC_FIRST_FRAG should be 0x01");
        }

        @Test
        @DisplayName("DCERPC_LAST_FRAG should have correct value")
        void testDcerpcLastFrag() {

    private Smb2SessionSetupRequest request;

    // Test constants
    private static final int TEST_SECURITY_MODE = 0x01;
    private static final int TEST_CAPABILITIES = 0x00000001;
    private static final long TEST_PREVIOUS_SESSION_ID = 0x1234567890ABCDEFL;
    private static final byte[] TEST_TOKEN = { 0x01, 0x02, 0x03, 0x04, 0x05 };

    @BeforeEach
    void setUp() {
        mockConfig = mock(Configuration.class);