return fileInputStream.available();
    }

    /**
     * Closes this input stream and releases any system resources associated with the stream.
     * @throws IOException if an I/O error occurs.
     */
    @Override
    public void close() throws IOException {
        try {
            fileInputStream.close();
        } finally {
            FileUtil.deleteInBackground(tempFile);
        }

        int decoded = resp.decode(buf, headerStart);
        assertTrue(decoded > 0);

        // When error path is taken, no blob should be parsed
        assertNull(resp.getBlob(), "Blob should be null on error path");
        assertNotNull(resp.getErrorData(), "Error data should be present");
        assertArrayEquals(err, resp.getErrorData());
    }

    @Test

    }

    @Test
    void constructor_shouldThrowSmbExceptionOnOpenFailure() throws IOException {
        // Arrange
        int access = 1;
        int rid = 100;
        int errorCode = 0xC0000022; // Example error code

        // Mock the behavior of sendrecv for MsrpcSamrOpenAlias to simulate failure
        doAnswer(invocation -> {
            MsrpcSamrOpenAlias rpc = invocation.getArgument(0);

     *            The response.
     * @param challenge
     *            The domain controller challenge.
     * @return credentials passed in the servlet request
     * @throws IOException
     *             If an IO error occurs.
     */
    public NtlmPasswordAuthentication doAuthentication(final CIFSContext tc, final HttpServletRequest req, final HttpServletResponse resp,
            final byte[] challenge) throws IOException {

    /**
     * Specifies the protocol type to validate against.
     *
     * @return the protocol type
     */
    ProtocolType protocolType();

    /**
     * The validation error message.
     *
     * @return the error message
     */
    String message() default "{org.lastaflute.validator.constraints.UriType.message}";

    /**
     * The validation groups.
     *
     * @return the validation groups

     */
    default int getMaxReadingNum() {
        return 10;
    }

    /**
     * Initializes the converter.
     *
     * @throws IOException if an I/O error occurs during initialization.
     */
    void init() throws IOException;

    /**
     * Converts the given text into a list of readings based on the specified field and languages.
     *

     *
     * This method can only be called once.
     *
     * @param props the properties to use for initialization
     * @throws CIFSException if the singleton context is already initialized or there is an error during initialization
     */
    public static synchronized final void init(final Properties props) throws CIFSException {
        if (INSTANCE != null) {

     * Creates a plugin exception with message and cause.
     *
     * @param message the error message
     * @param cause the cause
     */
    public PluginException(final String message, final Throwable cause) {
        super(message, cause);
    }

    /**
     * Creates a plugin exception with message.
     *
     * @param message the error message
     */
    public PluginException(final String message) {

        final TextExtractor extractor = container.getComponent("textExtractor");
        // Create a stream that will cause an encoding error
        final InputStream errorStream = new InputStream() {
            @Override
            public int read() throws IOException {
                throw new IOException("Simulated read error");
            }
        };

        try {
            extractor.getText(errorStream, null);

                this.preauthIntegrityHash = calculatePreauthHash(input, 0, input.length, this.preauthIntegrityHash);
            } catch (Exception e) {
                log.error("Failed to update pre-auth integrity hash", e);
                // Reset hash on error to maintain integrity
                resetPreauthHash();
                throw new CIFSException("Pre-authentication integrity hash update failed", e);
            }