src/third_party/web_platform_tests/page-visibility/idlharness.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Page Visibility IDL tests</title>
<link rel="author" title="W3C" href="http://www.w3.org/" />
<link rel="help" href="http://www.w3.org/TR/page-visibility/#sec-document-interface"/>
<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>
<h1>Page Visibility IDL tests</h1>

<pre id='untested_idl' style='display:none'>
interface Document {
};
</pre>

<pre id='idl'>
enum VisibilityState { "hidden", "visible", "prerender", "unloaded" };

partial interface Document {
  readonly attribute boolean hidden;
  readonly attribute VisibilityState visibilityState;
};
</pre>

<script>

(function() {
  var idl_array = new IdlArray();

  idl_array.add_untested_idls(document.getElementById("untested_idl").textContent);
  idl_array.add_idls(document.getElementById("idl").textContent);

  idl_array.add_objects({Document: ["window.document"]});

  idl_array.test();
})();

</script>

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

</body>
</html>