}

    public void test_createTask_withValidParams() {
        // Test task creation with valid parameters
        String path = "/path/to/document.pdf";
        Map<String, Object> docMap = new HashMap<>();
        docMap.put("mimetype", "application/pdf");
        docMap.put("title", "Test Document");

        Tuple3<String, String, String> task = thumbnailGenerator.createTask(path, docMap);
        assertNotNull(task);

        testFileTypeHelper.setTypes(new String[] { "pdf", "doc" });

        // Add existing file type query
        facetQueryView.addQuery("existing_pdf", "filetype:pdf");
        facetQueryView.addQuery("label1", "filetype:html");

        facetQueryView.init();

        Map<String, String> queryMap = facetQueryView.getQueryMap();

        // Should not duplicate existing pdf query

        final String tempPath = "/tmp/source.pdf";
        final String outputPath = "/tmp/thumbnail.jpg";

        final String expandedCommand = testCommand.replace("${url}", tempPath).replace("${outputFile}", outputPath);

        assertEquals("convert /tmp/source.pdf -resize 100x100 /tmp/thumbnail.jpg", expandedCommand);

    private static final String GEO_PREFIX = "geo.";

    /** Prefix for facet query parameters */
    private static final String FACET_PREFIX = "facet.";

    /** Format identifier for PDF date parsing */
    private static final String PDF_DATE = "pdf_date";

    /** Regular expression pattern for matching email addresses */
    private static final Pattern EMAIL_ADDRESS_PATTERN =

/**
 * Low-level, high-performance utility methods related to the {@linkplain Charsets#UTF_8 UTF-8}
 * character encoding. UTF-8 is defined in section D92 of <a
 * href="http://www.unicode.org/versions/Unicode6.2.0/ch03.pdf">The Unicode Standard Core
 * Specification, Chapter 3</a>.
 *
 * <p>The variant of UTF-8 implemented by this class is the restricted definition of UTF-8
 * introduced in Unicode 3.1. One implication of this is that it rejects <a

            }
            return buf.toString();
        }
        return url;
    }

    /**
     * Appends search parameters to PDF URLs for highlighting.
     *
     * @param document the document data map
     * @param url the PDF URL
     * @return the URL with search parameters
     */
    protected String appendPDFSearchWord(final Map<String, Object> document, final String url) {

        assertTrue(fessConfig.isExtensionAllowed("jpeg"));
        assertTrue(fessConfig.isExtensionAllowed("gif"));
        assertTrue(fessConfig.isExtensionAllowed("png"));
        assertFalse(fessConfig.isExtensionAllowed("pdf"));
        assertFalse(fessConfig.isExtensionAllowed("doc"));
    }

    // Test available extensions
    public void test_getAvailableExtensions() {
        String[] extensions = fessConfig.getAvailableExtensions();

        assertTrue(messages.hasMessageOf(property));
    }

    public void test_addErrorsCouldNotOpenOnSystem() {
        String property = "testProperty";
        String arg0 = "document.pdf";
        FessMessages result = messages.addErrorsCouldNotOpenOnSystem(property, arg0);
        assertNotNull(result);
        assertSame(messages, result);
        assertTrue(messages.hasMessageOf(property));
    }

    }

    public void test_hasConditionQuery_withFileType() {
        // Test with file type
        testParams.conditions.put(SearchRequestParams.AS_FILETYPE, new String[] { "pdf" });
        assertTrue(searchRequestParams.hasConditionQuery());
    }

    public void test_hasConditionQuery_withMultipleConditions() {
        // Test with multiple conditions

    // exchanging two blocks of memory). This classic text by Gries and Mills mentions several:
    // https://ecommons.cornell.edu/bitstream/handle/1813/6292/81-452.pdf.
    // (1) "Reversal", the one we have here.
    // (2) "Dolphin". If we're rotating an array a of size n by a distance of d, then element a[0]