assertTrue("Command should contain mimetype: " + mimeType, expandedCommand.contains(mimeType));
            assertFalse("Command should not contain placeholder", expandedCommand.contains("${mimetype}"));
        }
    }

    // Test command list with mimetype placeholder
    @Test
    public void test_commandList_withMimetypePlaceholder() {

     * @param mimeType The MIME type of the content.
     * @return The file extension including the dot (e.g., ".gif"), or empty string if unknown.
     */
    protected String getExtensionFromMimeType(final String mimeType) {
        if (mimeType == null) {
            return "";
        }
        return switch (mimeType) {
        case "image/gif" -> ".gif";

        for (String mimeType : supportedTypes) {
            Map<String, Object> docMap = new HashMap<>();
            docMap.put("mimetype", mimeType);
            assertTrue("Should support " + mimeType, thumbnailGenerator.isTarget(docMap));
        }

        for (String mimeType : unsupportedTypes) {
            Map<String, Object> docMap = new HashMap<>();

            // When same key is added multiple times, patterns are combined with |
            generator.addCondition("mimetype", "image/jpeg");
            generator.addCondition("mimetype", "image/png");
            generator.addCondition("mimetype", "image/svg" + "\\" + "+xml");

            // Test: All configured MIME types should match
            Map<String, Object> jpegDocMap = new HashMap<>();

     */
    protected boolean isImageMimeType(final ResponseData responseData) {
        final String mimeType = responseData.getMimeType();
        if (mimeType == null) {
            return true;
        }

        return switch (mimeType) {
        case "image/png", "image/gif", "image/jpeg", "image/bmp" -> true;
        default -> false;
        };
    }

    /**

        fess_doc = {
            "url": doc.get("url", ""),
            "title": doc.get("title", ""),
            "content": doc.get("content", ""),
            "mimetype": doc.get("mimetype", "text/html"),
            "filetype": doc.get("filetype", "html"),
            "created": doc.get("@timestamp", ""),
            "timestamp": doc.get("@timestamp", ""),
            # Add custom fields as needed
        }

    /**
     * Get file type icon based on URL or mimetype
     */
    function getFileTypeIcon(url, mimetype) {
        if (mimetype) {
            if (mimetype.indexOf('pdf') !== -1) return 'fa-file-pdf-o';
            if (mimetype.indexOf('word') !== -1 || mimetype.indexOf('document') !== -1) return 'fa-file-word-o';
            if (mimetype.indexOf('excel') !== -1 || mimetype.indexOf('spreadsheet') !== -1) return 'fa-file-excel-o';

        putResultDataBody(dataMap, fessConfig.getIndexFieldAnchor(), StringUtil.EMPTY);
        // mimetype
        putResultDataBody(dataMap, fessConfig.getIndexFieldMimetype(), mimeType);
        if (fileTypeHelper != null) {
            // filetype
            putResultDataBody(dataMap, fessConfig.getIndexFieldFiletype(), fileTypeHelper.get(mimeType));
        }
        // content_length

            public boolean isAppendQueryParameter() {
                return true;
            }

            public String getIndexFieldMimetype() {
                return "mimetype";
            }
        });

        document.put("mimetype", "text/html");
        String resultUrl = viewHelper.appendQueryParameter(document, url);
        assertNotNull(resultUrl);

        url = "http://example.com/test.html#section";

            }

            @Override
            public String getIndexFieldMimetype() {
                return "mimetype";
            }

            @Override
            public String getIndexFieldFiletype() {
                return "filetype";
            }

            @Override
            public String getIndexFieldFilename() {
                return "filename";
            }