assertTrue(CrawlerStatus.RUNNING.ordinal() < CrawlerStatus.DONE.ordinal());
    }

    /**
     * Test usage in conditional statements
     */
    public void test_conditionalStatements() {
        CrawlerStatus status = CrawlerStatus.RUNNING;

        // Test with if-else
        if (status == CrawlerStatus.INITIALIZING) {

        urlFilter.clear();
    }

    /**
     * Closes the crawler, releasing resources.
     * This method is called automatically when the crawler is used in a try-with-resources statement.
     */
    @Override
    public void close() {
        clientFactory.close();
    }

    /**
     * Adds an include filter for URLs.