css/css-animations/idlharness.html

<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <title>css-animations IDL tests</title>
  <meta name="timeout" content="long">
  <link rel="help" href="https://drafts.csswg.org/css-animations/">
  <script src="/resources/testharness.js"></script>
  <script src="/resources/testharnessreport.js"></script>
  <script src="/resources/WebIDLParser.js"></script>
  <script src="/resources/idlharness.js"></script>
</head>

<body>
  <div id="log"></div>

  <style>
    @keyframes test {
      from { top: 0px; }
      to { top: 1px; }
    }
  </style>

  <script>
    'use strict';

    idl_test(
      ['css-animations'],
      ['html', 'dom', 'cssom'],
      idl_array => {
        try {
          window.keyframes = document.styleSheets[0].cssRules[0];
        } catch (e) {
          // Surfaced in idlharness.js's test_object below.
        }

        idl_array.add_objects({
          AnimationEvent: ['new AnimationEvent("animationstart")'],
          CSSKeyframesRule: ['keyframes'],
          CSSKeyframeRule: ['keyframes.cssRules[0]'],
        });
      }
    );
  </script>
</body>

</html>