internal class FileOperator(
  private val fileChannel: FileChannel,
) {
  /** Write [byteCount] bytes from [source] to the file at [pos]. */
  @Throws(IOException::class)
  fun write(
    pos: Long,
    source: Buffer,
    byteCount: Long,
  ) {
    if (byteCount < 0L || byteCount > source.size) {
      throw IndexOutOfBoundsException()
    }
    var mutablePos = pos
    var mutableByteCount = byteCount

        return baos.toByteArray();
    }
    
    private byte[] calculateBindingHash(byte[] bindingInfo) throws IOException {
        try {
            MessageDigest digest = MessageDigest.getInstance("SHA-256");
            return digest.digest(bindingInfo);
        } catch (NoSuchAlgorithmException e) {
            throw new IOException("SHA-256 not available", e);
        }
    }
    

    }

    /**
     * @return the fid
     * @throws SmbException
     */
    public int getFid() throws SmbException {
        if (!isValid()) {
            throw new SmbException("Descriptor is no longer valid");
        }
        return this.fid;
    }

    public byte[] getFileId() throws SmbException {
        if (!isValid()) {
            throw new SmbException("Descriptor is no longer valid");
        }

    private int count;

    private String names = "";

    /**
     * @throws Exception
     */
    @Before
    public void setUp() throws Exception {
        DisposableUtil.dispose();
    }

    /**
     * @throws Exception
     */
    @Test
    public void test1() throws Exception {
        DisposableUtil.add(new TestDisposable("a"));

  @Override
  public void write(byte[] b, int off, int len) throws IOException {
    out.write(b, off, len);
    count += len;
  }

  @Override
  public void write(int b) throws IOException {
    out.write(b);
    count++;
  }

  // Overriding close() because FilterOutputStream's close() method pre-JDK8 has bad behavior:
  // it silently ignores any exception thrown by flush(). Instead, just close the delegate stream.

     * @param data the raw PAC data bytes
     * @param keys map of Kerberos keys for signature validation
     * @throws PACDecodingException if the PAC data is malformed or signature validation fails
     */
    public Pac(byte[] data, Map<Integer, KerberosKey> keys) throws PACDecodingException {
        byte[] checksumData = data.clone();
        try {

     * @return the extractor instance for processing the document
     * @throws FessSystemException if no suitable extractor can be found
     */
    @Override
    protected Extractor getExtractor(final ResponseData responseData) {
        final ExtractorFactory extractorFactory = ComponentUtil.getExtractorFactory();
        if (extractorFactory == null) {
            throw new FessSystemException("Could not find extractorFactory.");
        }

        when(mockRequest.getTreeId()).thenReturn(123);

        // Should throw NoAvailableChannelException when no healthy channels
        assertThrows(ChannelLoadBalancer.NoAvailableChannelException.class, () -> loadBalancer.selectChannel(mockRequest),
                "Should throw exception when no healthy channels available");
    }

        assertFalse(target.isOpen());
        assertTrue(target.isStale());
    }

    @Test
    @DisplayName("getInput and getOutput throw after close")
    void testGetInputOutputAndClosed() throws CIFSException {
        // After closing the handle, further calls throw
        target.close();
        CIFSException e1 = assertThrows(SmbException.class, target::getInput);

        public void encode(NdrBuffer _dst) throws NdrException {
            _dst.align(4);
            _dst.enc_ndr_referent(this.netname, 1);

            if (this.netname != null) {
                _dst = _dst.deferred;
                _dst.enc_ndr_string(this.netname);

            }
        }

        @Override
        public void decode(NdrBuffer _src) throws NdrException {
            _src.align(4);