void testUnicodeStringEncodeNullBuffer() throws NdrException {
            // Given: A unicode string with null buffer
            rpc.unicode_string unicodeString = new rpc.unicode_string();
            unicodeString.length = (short) 0;
            unicodeString.maximum_length = (short) 0;
            unicodeString.buffer = null;

            // Create a buffer with sample data
            byte[] buffer = new byte[100];
            // Fill with some test data
            for (int i = 0; i < buffer.length; i++) {
                buffer[i] = (byte) (i % 256);
            }

            int result = resp.readDataWireFormat(buffer, 0, 40);
            assertNotNull(resp.info);

    /**
     * Gets the negotiated send buffer size.
     *
     * @return the send buffer size
     */
    int getSendBufferSize();

    /**
     * Gets the negotiated receive buffer size.
     *
     * @return the receive buffer size
     */
    int getReceiveBufferSize();

    /**
     * Gets the negotiated maximum transaction buffer size.
     *

        SmbComWriteAndXResponse response = new SmbComWriteAndXResponse();
        byte[] buffer = new byte[] { 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; // count = 10

        int bytesRead = response.readParameterWordsWireFormat(buffer, 0);

        // The count should be read from the buffer.
        assertEquals(10L, response.count);
        // The method should return the number of bytes read.

    }

    @Override
    protected int readSetupWireFormat(final byte[] buffer, final int bufferIndex, final int len) {
        return 0;
    }

    @Override
    protected int readParametersWireFormat(final byte[] buffer, final int bufferIndex, final int len) {
        return 0;
    }

    @Override
    protected int readDataWireFormat(final byte[] buffer, final int bufferIndex, final int len) throws SMBProtocolDecodingException {

        this.server.smaxMpxCount = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        this.server.maxNumberVcs = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        this.server.maxBufferSize = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        this.server.maxRawSize = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

     * @param length length of data to send
     * @throws IOException if an I/O error occurs
     */
    void send(byte[] buf, int off, int length) throws IOException;

    /**
     * Performs a transaction on the pipe.
     *
     * @param buf the buffer containing the transaction data
     * @param off the offset in the buffer
     * @param length the length of data to send

        assertEquals(16, SMBUtil.readInt2(buffer, 4));

        // NameLength field (2 bytes) - should be 4 for "RqLs"
        assertEquals(4, SMBUtil.readInt2(buffer, 6));

        // Reserved field (2 bytes) - should be 0
        assertEquals(0, SMBUtil.readInt2(buffer, 8));

        // DataOffset field (2 bytes) - should be 24 (16 header + 4 name + 4 padding)
        assertEquals(24, SMBUtil.readInt2(buffer, 10));

        byte[] buffer = new byte[512];

        // When
        int bytesWritten = request.writeBytesWireFormat(buffer, 0);

        // Then
        assertTrue(bytesWritten > 0);

        // Verify structure size
        assertEquals(36, SMBUtil.readInt2(buffer, 0));

        // Verify dialect count
        assertEquals(3, SMBUtil.readInt2(buffer, 2)); // SMB210, SMB300, SMB302

    @Override
    public int decode(final byte[] buffer, int bufferIndex, final int len) throws SMBProtocolDecodingException {
        final int start = bufferIndex;
        this.namedPipeState = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        this.readDataAvailable = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        this.numberOfMessages = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;