<lastmod>2004-12-23</lastmod>
      <changefreq>weekly</changefreq>
   </url>
   <url>
      <loc>http://www.example.com/catalog?item=74&amp;desc=vacation_newfoundland</loc>
      <lastmod>2004-12-23T18:00:15+00:00</lastmod>
      <priority>0.3</priority>
   </url>
   <url>
      <loc>http://www.example.com/catalog?item=83&amp;desc=vacation_usa</loc>
      <lastmod>2004-11-23</lastmod>
   </url>

        assertEquals("weekly", ((SitemapUrl) sitemaps[2]).getChangefreq());
        assertNull(((SitemapUrl) sitemaps[2]).getPriority());

        assertEquals("2004-12-23T18:00:15+00:00", sitemaps[3].getLastmod());
        assertEquals("http://www.example.com/catalog?item=74&desc=vacation_newfoundland", sitemaps[3].getLoc());
        assertNull(((SitemapUrl) sitemaps[3]).getChangefreq());