table-with-aria-hidden-ancestor-toggle.html

<!DOCTYPE HTML>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>

<div id="container" aria-hidden="true">
  <div>
    <table border="1" id="table">
       <tbody>
          <tr id="row">
             <td id="cell">1</td>
             <td>2</td>
          </tr>
       </tbody>
    </table>
  </div>
</div>

<script>
function axElementById(id) {
    return accessibilityController.accessibleElementById(id);
}

test(function(t) {
    axElementById("cell"); // No test assertion, just ensure it's created.
    document.getElementById('container').setAttribute('aria-hidden', 'false');
    assert_equals(axElementById("table").role, 'AXRole: AXTable');
    assert_equals(axElementById("row").role, 'AXRole: AXRow');
    assert_equals(axElementById("cell").role, 'AXRole: AXCell');
}, "Table, row and cell roles should be correct after setting aria-hidden to false on the ancestor.");

</script>

chromium/third_party/blink/web_tests/accessibility/table-with-aria-hidden-ancestor-toggle.html