ruleManager.addRule(existingRule);

        // Register at index 0
        testRule.register(0);

        List<Rule> rules = ruleManager.getRules();
        assertEquals(2, rules.size());
        assertEquals("rule1", rules.get(0).getRuleId());
        assertEquals("existing", rules.get(1).getRuleId());
    }

    /**
     * Test register method with middle index
     */

        final List<String> wordList = Analysis.parseWordList(environment, settings, "stopwords", s -> s);
        if (wordList != null) {
            stopwords = wordList.toArray(new String[wordList.size()]);
        } else {
            stopwords = new String[0];
        }

        ignoreCase = settings.getAsBoolean("ignore_case", Boolean.FALSE).booleanValue();
        if (ignoreCase) {

     * @param description The description of the exception.
     */
    public ChildUrlsException(final Set<RequestData> childUrlList, final String description) {
        super("Threw child urls(" + childUrlList.size() + "). " + description, false, false);
        this.childUrlList = childUrlList;
    }

    /**
     * Returns the list of child URLs.
     * @return The list of child URLs.
     */

        return new SuggestItem(new String[] { this.getElevateWord() }, readingArray, fields.toArray(new String[fields.size()]), 1, 0,
                this.getBoost(), this.getTags().toArray(new String[this.getTags().size()]),
                this.getRoles().toArray(new String[this.getRoles().size()]), null, SuggestItem.Kind.USER);
    }

            CrawlingParameterUtil.setCrawlerContext(crawlerContext);
            httpClient.init();
            httpClient.processRobotsTxt(url);
            assertEquals(1, crawlerContext.getRobotsTxtUrlSet().size());
            assertTrue(crawlerContext.getRobotsTxtUrlSet().contains("http://localhost:7070/robots.txt"));
            assertFalse(urlFilter.match("http://localhost:7070/admin/"));

        item.readings = readings.toArray(new String[readings.size()][]);
        item.fields = fields.toArray(new String[fields.size()]);
        item.docFreq = docFreq;
        item.queryFreq = queryFreq;
        item.userBoost = userBoost;
        item.tags = tags.toArray(new String[tags.size()]);
        item.roles = roles.toArray(new String[roles.size()]);
        item.languages = languages.toArray(new String[languages.size()]);

        }

        @Override
        public void addRule(int index, Rule rule) {
            if (rule != null) {
                if (index < 0 || index > rules.size()) {
                    throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + rules.size());
                }
                rules.add(index, rule);
            }
        }

        @Override
        public boolean removeRule(Rule rule) {

    }

    /**
     * Sets the polling fetch size.
     * @param pollingFetchSize The polling fetch size.
     */
    public void setPollingFetchSize(final int pollingFetchSize) {
        this.pollingFetchSize = pollingFetchSize;
    }

    /**
     * Sets the maximum crawling queue size.
     * @param maxCrawlingQueueSize The maximum crawling queue size.
     */

    /** The property name for maximum cached content size. */
    public static final String MAX_CACHED_CONTENT_SIZE = "maxCachedContentSize";

    /** The crawler container. */
    @Resource
    protected CrawlerContainer crawlerContainer;

    /** The initialization parameter map. */
    protected Map<String, Object> initParamMap;

    /** The maximum cached content size in bytes. Default is 1MB. */

        assertEquals(2, activeStatuses.size());
        assertTrue(activeStatuses.contains(CrawlerStatus.INITIALIZING));
        assertTrue(activeStatuses.contains(CrawlerStatus.RUNNING));
        assertFalse(activeStatuses.contains(CrawlerStatus.DONE));

        // Create empty EnumSet
        EnumSet<CrawlerStatus> emptySet = EnumSet.noneOf(CrawlerStatus.class);
        assertEquals(0, emptySet.size());