}

    @Test
    @DisplayName("setFileId should update file ID")
    void testSetFileId() throws Exception {
        byte[] newFileId = new byte[16];
        Arrays.fill(newFileId, (byte) 0xFF);

        request.setFileId(newFileId);

        Field fileIdField = Smb2FlushRequest.class.getDeclaredField("fileId");
        fileIdField.setAccessible(true);

     */

    public byte[] getAddress() {
        final byte[] addr = new byte[4];

        addr[0] = (byte) (address >>> 24 & 0xFF);
        addr[1] = (byte) (address >>> 16 & 0xFF);
        addr[2] = (byte) (address >>> 8 & 0xFF);
        addr[3] = (byte) (address & 0xFF);
        return addr;
    }

    /**
     * To convert this address to an <code>InetAddress</code>.
     *

    }

    @Test
    @DisplayName("Should handle edge case with all 0xFF session key")
    void testDeriveKeys_AllFFSessionKey() {
        // Given
        byte[] ffSessionKey = new byte[16];
        Arrays.fill(ffSessionKey, (byte) 0xFF);
        int dialect = Smb2Constants.SMB2_DIALECT_0311;

        // When

          if (expectDot) {
            byte0 = '.'.code
            expectDot = false
          } else {
            byte0 = labels[currentLabelIndex][currentLabelByteIndex] and 0xff
          }

          val byte1 = this[mid + publicSuffixByteIndex] and 0xff

          compareResult = byte0 - byte1
          if (compareResult != 0) break

          publicSuffixByteIndex++
          currentLabelByteIndex++

        }
        final byte[] digest = msgDigest.digest();

        final StringBuilder buffer = new StringBuilder(200);
        for (final byte element : digest) {
            final String tmp = Integer.toHexString(element & 0xff);
            if (tmp.length() == 1) {
                buffer.append('0').append(tmp);
            } else {
                buffer.append(tmp);
            }
        }
        return buffer.toString();
    }

    /**
     * Constructs an NdrSmall with the specified value
     * @param value the small integer value (will be masked to 0-255 range)
     */
    public NdrSmall(final int value) {
        this.value = value & 0xFF;
    }

    @Override
    public void encode(final NdrBuffer dst) throws NdrException {
        dst.enc_ndr_small(value);
    }

    @Override
    public void decode(final NdrBuffer src) throws NdrException {

            // Given
            byte[] buffer = new byte[10];
            // Write -1 which will be read as 65535 unsigned
            buffer[0] = (byte) 0xFF;
            buffer[1] = (byte) 0xFF;

            // When & Then
            SMBProtocolDecodingException exception =
                    assertThrows(SMBProtocolDecodingException.class, () -> response.readBytesWireFormat(buffer, 0));

     * @throws SmbException if an I/O error occurs
     */
    public int read() throws SmbException {
        if (read(tmp, 0, 1) == -1) {
            return -1;
        }
        return tmp[0] & 0xFF;
    }

    /**
     * Reads bytes from the file into the specified byte array.
     *
     * @param b the byte array to read data into
     * @return the number of bytes read, or -1 if end of file is reached

        bufferIndex += 4;
        this.dataDisplacement = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        this.setupCount = buffer[bufferIndex] & 0xFF;
        bufferIndex += 2;
        if ((this.setupCount != 0) && log.isDebugEnabled()) {
            log.debug("setupCount is not zero: " + this.setupCount);
        }

        return bufferIndex - start;
    }

        bufferIndex += 2;
        if (this.dialectIndex > 10) {
            return bufferIndex - start;
        }
        this.server.securityMode = buffer[bufferIndex] & 0xFF;
        bufferIndex++;
        this.server.security = this.server.securityMode & 0x01;
        this.server.encryptedPasswords = (this.server.securityMode & 0x02) == 0x02;