public function testSimpleWriteAdvanced()
{
$writer = new SitemapWriter($this->folder, 'test', array('image'), false);
$writer->open();
$writer->write(array('url' => 'https://sonata-project.org/bundle/', 'lastmod' => '2012-12-26', 'change' => 'daily', 'type' => 'default'));
$writer->write(array('url' => 'https://sonata-project.org/bundle/', 'lastmod' => '2012-12-26', 'change' => 'weekly', 'type' => 'image', 'images' => array(array('url' => 'https://sonata-project.org/uploads/media/default/0001/01/thumb_1_default_small.jpg', 'caption' => 'sonata img'))));
$writer->close();
$generatedFiles = $this->getFiles();
$this->assertEquals(1, count($generatedFiles));
$this->assertEquals($this->folder . '/sitemap_test_00001.xml', $generatedFiles[0]);
SitemapWriter::generateSitemapIndex($this->folder, 'https://sonata-project.org');
$generatedFiles = $this->getFiles();
$this->assertEquals(2, count($generatedFiles));
// this will throw an exception if the xml is invalid
new SimpleXMLElement(file_get_contents($generatedFiles[1]));
$expected = <<<'XML'
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:image="http://www.google.com/schemas/sitemap-image/1.1">
<url><loc>https://sonata-project.org/bundle/</loc><lastmod>2012-12-26</lastmod><changefreq>weekly</changefreq><priority>0.5</priority></url>
<url><loc>https://sonata-project.org/bundle/</loc><image:image><image:loc>https://sonata-project.org/uploads/media/default/0001/01/thumb_1_default_small.jpg</image:loc><image:caption>sonata img</image:caption></image:image></url>
</urlset>
XML;
$this->assertEquals(trim($expected), file_get_contents($generatedFiles[1]));
}