toggle-class-with-state-mute.html | Explore in Territory

<!DOCTYPE html>
<html>
<title>Test that player state is reflected in CSS classes on the mute button.</title>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="../media-controls.js"></script>
<video controls width=400></video>
<script>
async_test(t => {
  var video = document.querySelector('video');
  checkButtonNotHasClass(muteButton(video), 'muted');

  t.step_func(_ => {
    video.muted = true;

    setTimeout(t.step_func_done(_ => {
      checkButtonHasClass(muteButton(video), 'muted');
    }));
  })();
});
</script>
</html>

chromium/third_party/blink/web_tests/media/controls/toggle-class-with-state-mute.html