@Override
    public int read() throws IOException {
        // need oplocks to cache otherwise use BufferedInputStream
        if (read(tmp, 0, 1) == -1) {
            return -1;
        }
        return tmp[0] & 0xFF;
    }

    /**
     * Reads up to b.length bytes of data from this input stream into an array of bytes.
     *
     * @throws IOException if a network error occurs
     */

    @Override

        // Arrange
        nodeStatusRequest = new NodeStatusRequest(mockConfig, mockName);
        byte[] dst = new byte[100];
        int originalHexCode = 0xFF;
        mockName.hexCode = originalHexCode;

        // Create a spy to capture the state during writeQuestionSectionWireFormat
        NodeStatusRequest spyRequest = spy(nodeStatusRequest);

        @DisplayName("Should handle large buffer decoding")
        void testLargeBufferDecode() throws SMBProtocolDecodingException {
            byte[] largeBuffer = new byte[65536];
            Arrays.fill(largeBuffer, (byte) 0xFF);

            TestCreateContextResponse response = new TestCreateContextResponse("LARGE_BUFFER_TEST".getBytes(StandardCharsets.UTF_8));

            int result = response.decode(largeBuffer, 1000, 5000);

     * @return the unsigned byte value as an integer
     * @throws IOException if an I/O error occurs
     */
    public int readUnsignedByte() throws IOException {
        return readByte() & 0xff;
    }

    /**
     * Reads an unsigned 32-bit integer value.
     * @return the unsigned integer value as a long
     * @throws IOException if an I/O error occurs
     */

    // codePoint has at most 21 bits
    return ((0xFL << 4) | (codePoint >>> 18))
        | ((0x80L | (0x3F & (codePoint >>> 12))) << 8)
        | ((0x80L | (0x3F & (codePoint >>> 6))) << 16)
        | ((0x80L | (0x3F & codePoint)) << 24);
  }

  private static long charToThreeUtf8Bytes(char c) {
    return ((0x7L << 5) | (c >>> 12))
        | ((0x80 | (0x3F & (c >>> 6))) << 8)
        | ((0x80 | (0x3F & c)) << 16);
  }

    @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);

        request = new Smb2SetInfoRequest(mockConfig);

        // Set all fields
        byte[] newFileId = new byte[16];
        for (int i = 0; i < 16; i++) {
            newFileId[i] = (byte) (0xFF - i);
        }
        request.setFileId(newFileId);
        request.setInfoType((byte) 0x02);
        request.setFileInfoClass((byte) 0x08);
        request.setAdditionalInformation(0xABCDEF00);

            SMBUtil.writeInt2(4, buffer, bufferIndex);

            // Fill rest of buffer with garbage
            for (int i = 2; i < buffer.length; i++) {
                buffer[i] = (byte) 0xFF;
            }

            // Should only read the structure size (2 bytes) and not go beyond
            int result = echoResponse.readBytesWireFormat(buffer, bufferIndex);
            assertEquals(0, result);

    void testInitDefaultsWithPresetMachineId() throws Exception {
        BaseConfiguration testConfig = new BaseConfiguration(false);
        byte[] customMachineId = new byte[32];
        Arrays.fill(customMachineId, (byte) 0xFF);

        // Use reflection to set private field
        java.lang.reflect.Field machineIdField = BaseConfiguration.class.getDeclaredField("machineId");
        machineIdField.setAccessible(true);

        // Given
        smbComTreeDisconnect = new SmbComTreeDisconnect(config);

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

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

    /**
     * Nested class for testing buffer operations
     */
    @Nested