fail();
        } catch (final ChildUrlsException e) {
            final Set<RequestData> urlSet = e.getChildUrlList();
            assertEquals(1, urlSet.size());
            for (final RequestData requestData : urlSet.toArray(new RequestData[urlSet.size()])) {
                String url = requestData.getUrl();
                assertTrue(url.contains("dir1/test3.txt"));
            }

            if (preloadDate.indexOf("<urlset") >= 0) {
                // XML Sitemaps
                bis.reset();
                return parseXmlSitemaps(bis);
            }
            if (preloadDate.indexOf("<sitemapindex") >= 0) {
                // XML Sitemaps Index
                bis.reset();
                return parseXmlSitemapsIndex(bis);
            }

     */
    public void test_robotsTxtUrlSet() {
        Set<String> urlSet = crawlerContext.getRobotsTxtUrlSet();
        assertNotNull(urlSet);
        assertTrue(urlSet instanceof LruHashSet);
        assertTrue(urlSet.isEmpty());

        // Add URLs to default set
        urlSet.add("http://example.com/robots.txt");
        urlSet.add("http://test.com/robots.txt");

        }
        return true;
    }

    /**
     * Stores child URLs found in the response data.
     *
     * @param crawlerContext the crawler context
     * @param childUrlList the set of child URLs
     * @param url the parent URL
     * @param depth the depth of the child URLs
     * @param encoding the encoding of the child URLs
     */

            return;
        }

        // add url and filter
        final Set<String> urlSet = new HashSet<>();
        final List<UrlQueue<?>> childList = childUrlList.stream()
                .filter(d -> StringUtil.isNotBlank(d.getUrl()) && urlSet.add(d.getUrl()) && crawlerContext.urlFilter.match(d.getUrl()))
                .map(d -> {

        StatefulTransformer transformer = new StatefulTransformer("statefulTransformer");

        // Process multiple URLs
        String[] urls = { "http://example1.com", "http://example2.com", "http://example3.com" };

        for (String url : urls) {
            ResponseData responseData = new ResponseData();
            responseData.setUrl(url);

        } catch (final ChildUrlsException e) {
            String[] urls = e.getChildUrlList().stream().map(r -> r.getUrl()).sorted().toArray(String[]::new);
            assertEquals(3, urls.length);
            assertEquals(baseUrl + "dir1/", urls[0]);
            assertEquals(baseUrl + "dir3/", urls[1]);
            assertEquals(baseUrl + "file1.txt", urls[2]);
        }
        try {
            smbClient.doGet(baseUrl + "dir1/");

        }
        return null;
    }

    /**
     * Extracts URLs from HTML tag attributes using XPath.
     *
     * @param url the base URL for resolving relative URLs
     * @param document the document to extract URLs from
     * @param xpath the XPath expression to select elements
     * @param attr the attribute name to extract URLs from
     * @param encoding the character encoding to use

        this.path = path;
    }

    /**
     * Gets the replacement string for question marks in URLs.
     *
     * @return the question mark replacement string
     */
    public String getQuestionStr() {
        return questionStr;
    }

    /**
     * Sets the replacement string for question marks in URLs.
     *
     * @param questionStr the question mark replacement string to set
     */

                            InputStream in = null;
                            try {
                                if (isByteStream) {
                                    inputStream.reset();
                                    in = inputStream;
                                } else {
                                    in = new FileInputStream(tempFile);
                                }