fenced-frame/document-activeelement.https.html

<!DOCTYPE html>
<title>Test document.activeElement</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/utils.js"></script>
<script src="/common/dispatcher/dispatcher.js"></script>
<script src="resources/utils.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>

<body>
<script>
promise_test(async(t) => {
  const actions = new test_driver.Actions();
  const fencedframe = await attachFencedFrameContext();

  assert_equals(document.activeElement, document.body);

  await multiClick(0, 0, fencedframe.element, 5);

  assert_equals(document.activeElement, fencedframe.element);
}, 'document.activeElement should be the fenced frame when it has focus');

promise_test(async(t) => {
  const actions = new test_driver.Actions();
  const fencedframe = await attachFencedFrameContext();

  await fencedframe.execute(() => {
    assert_equals(document.activeElement, document.body);
  })

}, "a fenced frame's document.activeElement should be its body when it " +
   "doesn't have focus");

</script>
</body>