Update WPT tests for embedded content
[WebKit-https.git] / LayoutTests / imported / w3c / web-platform-tests / html / semantics / embedded-content / media-elements / loading-the-media-resource / resource-selection-candidate-insert-before.html
1 <!doctype html>
2 <title>inserting another source before the candidate</title>
3 <script src="/resources/testharness.js"></script>
4 <script src="/resources/testharnessreport.js"></script>
5 <div id=log></div>
6 <script>
7 var v;
8 function createSource(src) {
9   var source = document.createElement('source');
10   source.src = src;
11   return source;
12 }
13 var t = async_test(function(t) {
14   v = document.createElement('video');
15   v.addEventListener('loadstart', t.step_func(function() {
16     assert_equals(v.currentSrc.substr(v.currentSrc.lastIndexOf('#')), '#a');
17     t.done();
18   }), false);
19   v.appendChild(createSource('#a')); // invokes resource selection
20 });
21 </script>
22 <!-- now resource selection algorithm will continue its sync section (the </script> tag below provides a stable state) -->
23 <!-- #a is candidate -->
24 <!-- pointer is between #a and the end of the list -->
25 <script>
26 t.step(function() {
27   v.insertBefore(createSource('#b'), v.firstChild); // pointer is unchanged, #a is still candidate
28 });
29 </script>