moves-to-next-item-within-descendants.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>HTML Test: focusgroup - Focus moves to next item within its descendants.</title>
<link rel="author" title="Microsoft" href="http://www.microsoft.com/">
<link rel="help" href="https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/Focusgroup/explainer.md">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="../resources/focusgroup-utils.js"></script>

<div id=root focusgroup>
  <div id=item1 tabindex=0>
    <div>
      <div focusgroup=extend>
        <span id=item2 tabindex=-1>item2<span>
      </div>
    </div>
  </div>
  <span id=item4 tabindex=-1>item4</span>
</div>

<script>

  promise_test(async t => {
    var item1 = document.getElementById("item1");
    var item2 = document.getElementById("item2");

    await focusAndKeyPress(item1, kArrowDown);
    assert_equals(document.activeElement, item2);

    await focusAndKeyPress(item1, kArrowRight);
    assert_equals(document.activeElement, item2);
  }, "When the focus is set on a focusgroup item that is an ancestor to an extending focusgroup, the focus should move to the next element inside that extending focusgroup even if it's not a direct child.");

</script>

chromium/third_party/blink/web_tests/external/wpt/html/interaction/focus/focusgroup/tentative/forward-navigation/moves-to-next-item-within-descendants.html