return 0;
    }

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

    @Override
    protected int readDataWireFormat(final byte[] buffer, int bufferIndex, final int len) {
        final int start = bufferIndex;

        /** The total number of pages available. */
        protected int allPageCount;

        /** The total number of records across all pages. */
        protected int allRecordCount;

        /** The number of records per page. */
        protected int pageSize;

        /** The current page number (1-based). */
        protected int currentPageNumber;

        /** The size of the page range for navigation. */

        void testEncodeAtDifferentPositions(int position) {
            // Given
            byte[] largeBuffer = new byte[200];
            long sourceOffset = 12345L;
            long targetOffset = 67890L;
            int length = 99999;
            SrvCopychunk chunk = new SrvCopychunk(sourceOffset, targetOffset, length);

            // When
            int bytesWritten = chunk.encode(largeBuffer, position);

    /**
     * Compression algorithm constants matching SMB3 specification.
     */
    public static final int COMPRESSION_NONE = 0x0;
    public static final int COMPRESSION_LZ77 = 0x1;
    public static final int COMPRESSION_LZ77_HUFFMAN = 0x2;
    public static final int COMPRESSION_LZNT1 = 0x3;
    public static final int COMPRESSION_PATTERN_V1 = 0x4;

    /**
     * Compresses data using the specified algorithm.
     *

        return 0;
    }

    @Override
    protected int readParametersWireFormat(final byte[] buffer, final int bufferIndex, final int len) {
        this.length = SMBUtil.readInt4(buffer, bufferIndex);
        return 4;
    }

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

        void testEncodeWithOffset() {
            String path = "\\\\test";
            int maxReferralLevel = 5;
            buffer = new DfsReferralRequestBuffer(path, maxReferralLevel);

            int offset = 10;
            byte[] dst = new byte[offset + buffer.size()];
            int bytesEncoded = buffer.encode(dst, offset);

            assertEquals(buffer.size(), bytesEncoded);

        return 4;
    }

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

    @Override
    protected int writeParametersWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    @Override
    protected int writeDataWireFormat(final byte[] dst, final int dstIndex) {
        if (dst.length - dstIndex < this.pipeDataLen) {

    static byte[] readSecurityBuffer(final byte[] src, final int index) {
        final int length = readUShort(src, index);
        final int offset = readULong(src, index + 4);
        final byte[] buffer = new byte[length];
        System.arraycopy(src, offset, buffer, 0, length);
        return buffer;
    }

    static void writeULong(final byte[] dest, final int offset, final int ulong) {
        dest[offset] = (byte) (ulong & 0xff);

      }
    }
  }

  private static class Sink extends AbstractStreamingHasher {
    final int chunkSize;
    final int bufferSize;
    final ByteArrayOutputStream out = new ByteArrayOutputStream();

    int processCalled = 0;
    boolean remainingCalled = false;

    Sink(int chunkSize, int bufferSize) {
      super(chunkSize, bufferSize);
      this.chunkSize = chunkSize;

    void testWriteDataWireFormatWithOffsetAndLength() {
        // Given
        int dataOffset = 2;
        int dataLength = 5;
        transCallNamedPipe = new TransCallNamedPipe(mockConfig, TEST_PIPE_NAME, TEST_DATA, dataOffset, dataLength);
        byte[] dst = new byte[100];
        int dstIndex = 10;

        // When
        int bytesWritten = transCallNamedPipe.writeDataWireFormat(dst, dstIndex);

        // Then