}

    /**
     * Enables or disables validation of sitemap entries.
     * @param enableValidation true to enable validation, false to disable
     */
    public void setEnableValidation(final boolean enableValidation) {
        this.enableValidation = enableValidation;
    }

    /**
     * Validates a URL length according to sitemap specification.
     * @param url the URL to validate

        assertEquals("x-default", link3.getHreflang());
        assertEquals("http://www.example.com/page.html", link3.getHref());
    }

    public void test_validation() {
        sitemapsHelper.setEnableValidation(true);

        // Valid URL
        assertTrue(sitemapsHelper.isValidUrl("http://www.example.com"));
        assertTrue(sitemapsHelper.isValidUrl("https://www.example.com"));

        // Invalid URL