}

    public void test_getText() {
        final InputStream in = ResourceUtil.getResourceAsStream("extractor/csv/test.csv");
        final ExtractData extractData = csvExtractor.getText(in, null);
        CloseableUtil.closeQuietly(in);

        final String content = extractData.getContent();
        logger.info(content);

        // Verify header extraction

        CloseableUtil.closeQuietly(in);

        final String content = extractData.getContent();

        // Verify array element extraction
        assertTrue(content.contains("tags[0]"));
        assertTrue(content.contains("crawler"));
    }

    public void test_getText_null() {
        try {
            jsonExtractor.getText(null, null);
            fail();

    /**
     * Test that ZipExtractor handles null input stream with appropriate error message.
     */
    public void test_ZipExtractor_nullInputStream_throwsWithMessage() {
        try {
            zipExtractor.getText(null, null);
            fail("Expected CrawlerSystemException");
        } catch (final CrawlerSystemException e) {
            assertEquals("The inputstream is null.", e.getMessage());
        }
    }

    /**

    }

    public void test_getText() throws IOException {
        try (final InputStream in = ResourceUtil.getResourceAsStream("extractor/eml/sample1.eml")) {
            ExtractData data = emlExtractor.getText(in, null);
            final String content = data.getContent();
            logger.info(content);
            assertTrue(content.contains("プレイステーション"));
            assertTrue(data.getValues("Subject")[0].contains("ダイジェスト"));

        })) {
            KerberosCredentials credentials = new KerberosCredentials(LOGIN_CONTEXT_NAME);
            KerberosKey[] keys = credentials.getKeys();
            assertEquals(2, keys.length);
        }
    }

    /**
     * Test getKeys method when subject has no Kerberos keys.
     *
     * @throws LoginException if login fails.
     */
    @Test

    /**
     * Extracts text from the Visio input stream.
     * @param in The input stream.
     * @param params The parameters.
     * @return The extracted data.
     */
    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        if (in == null) {
            throw new CrawlerSystemException("Microsoft Visio input stream is null. Cannot extract text from null input.");
        }

        final String content = msExcelExtractor.getText(in, null).getContent();
        CloseableUtil.closeQuietly(in);
        logger.info(content);
        assertTrue(content.contains("テスト"));
    }

    public void test_getText_null() {
        try {
            msExcelExtractor.getText(null, null);
            fail();
        } catch (final CrawlerSystemException e) {

        final String content = msPowerPointExtractor.getText(in, null).getContent();
        CloseableUtil.closeQuietly(in);
        logger.info(content);
        assertTrue(content.contains("テスト"));
    }

    public void test_getText_null() {
        try {
            msPowerPointExtractor.getText(null, null);
            fail();
        } catch (final CrawlerSystemException e) {

                        queryMap = new HashMap<>();
                        keyMatchQueryMap.put(virtualHost, queryMap);
                    }
                    final String termKey = toLowerCase(keyMatch.getTerm());
                    List<Tuple3<String, QueryBuilder, ScoreFunctionBuilder<?>>> boostList = queryMap.get(termKey);
                    if (boostList == null) {
                        boostList = new ArrayList<>();

    }

    public void test_getHtml_utf8() {
        final InputStream in = ResourceUtil.getResourceAsStream("extractor/test_utf8.html");
        final ExtractData data = htmlExtractor.getText(in, null);
        final String content = data.getContent();
        CloseableUtil.closeQuietly(in);
        logger.info(content);
        assertTrue(content.contains("テスト"));