src/third_party/web_platform_tests/mediasession/idlharness.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Media Session IDL tests</title>
<link rel="help" href="https://wicg.github.io/mediasession/"/>
<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>Media Session IDL tests</h1>

<pre id='untested_idl' style='display:none'>
[PrimaryGlobal]
interface Window {
};

interface Navigator {
};
</pre>

<pre id='idl'>
[Exposed=Window]
partial interface Navigator {
  [SameObject] readonly attribute MediaSession mediaSession;
};

enum MediaSessionPlaybackState {
  "none",
  "paused",
  "playing"
};

enum MediaSessionAction {
  "play",
  "pause",
  "seekbackward",
  "seekforward",
  "previoustrack",
  "nexttrack",
};

callback MediaSessionActionHandler = void();

[Exposed=Window]
interface MediaSession {
  attribute MediaMetadata? metadata;

  attribute MediaSessionPlaybackState playbackState;

  void setActionHandler(MediaSessionAction action, MediaSessionActionHandler? handler);
};

[Constructor(optional MediaMetadataInit init), Exposed=Window]
interface MediaMetadata {
  attribute DOMString title;
  attribute DOMString artist;
  attribute DOMString album;
  attribute FrozenArray<MediaImage> artwork;
};

dictionary MediaMetadataInit {
  DOMString title = "";
  DOMString artist = "";
  DOMString album = "";
  sequence<MediaImage> artwork = [];
};

dictionary MediaImage {
  required USVString src;
  DOMString sizes = "";
  DOMString type = "";
};
</pre>
<script>
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({
  MediaMetadata: [new MediaMetadata()],
  Navigator: ["navigator"]
});
idl_array.test();
</script>
<div id="log"></div>
</body>
</html>