third_party/WebKit/LayoutTests/media/mediasession/htmlmediaelement-set-session.html

   1 <!DOCTYPE html>
   2 <title>HTMLMediaElement set session</title>
   3 <script src="../../resources/testharness.js"></script>
   4 <script src="../../resources/testharnessreport.js"></script>
   5 <script>
   6   test(function() {
   7       assert_true(!window.internals || window.internals.runtimeFlags.mediaSessionEnabled,
   8           "Run either manually by passing the MediaSession flag or as part of the virtual mediasession testsuite.");
   9       console.warn("dummy log entry to avoid an empty -expected.txt in virtual/");
  10
  11       var mediaElement = document.createElement('audio');
  12       assert_true(mediaElement instanceof HTMLMediaElement);
  13
  14       var mediaSession = new MediaSession();
  15       mediaElement.session = mediaSession;
  16       assert_equals(mediaElement.session, mediaSession);
  17
  18       assert_throws(new TypeError, function() { mediaElement.session = document; });
  19       assert_throws(new TypeError, function() { mediaElement.session = "string"; });
  20       assert_throws(new TypeError, function() { mediaElement.session = 42; });
  21       assert_equals(mediaElement.session, mediaSession);
  22
  23       mediaElement.session = null;
  24       assert_equals(mediaElement.session, null);
  25   });
  26 </script>