public function test_get_scripts__did_convert()
 {
     $source = '<iframe src="https://example.com/embed/132886713" width="500" height="281"></iframe>';
     $expected = array('amp-iframe' => 'https://cdn.ampproject.org/v0/amp-iframe-0.1.js');
     $dom = AMP_DOM_Utils::get_dom_from_content($source);
     $sanitizer = new AMP_Iframe_Sanitizer($dom);
     $sanitizer->sanitize();
     $scripts = $sanitizer->get_scripts();
     $this->assertEquals($expected, $scripts);
 }