dont-show-disabled-controls-in-overflow.html

<!DOCTYPE html>
<html>
<title>Test that small videos don't show disabled mute/fullscreen buttons in the overflow menu.</title>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="../media-controls.js"></script>
<video controls width=50 preload=none src="../content/60_sec_video.webm"></video>
<script>
async_test(t => {
  const video = document.querySelector('video');

  window.onload = t.step_func_done(() => {
    // Test that the controls are not visible.
    assert_false(isControlVisible(fullscreenButton(video)));
    assert_false(isControlVisible(muteButton(video)));

    // Test that the overflow controls are also not visible.
    assert_false(isControlVisible(fullscreenOverflowItem(video)));
    assert_false(isControlVisible(muteOverflowItem(video)));
  });
});
</script>
</html>

chromium/third_party/blink/web_tests/media/controls/dont-show-disabled-controls-in-overflow.html