chromium/third_party/blink/web_tests/html/details_summary/details-add-summary.html

<!DOCTYPE html>
<script>
function createNewElement(tag, id, text) {
  var result = document.createElement(tag);
  if (id)
    result.setAttribute('id', id);
  result.innerHTML = text;
  return result;
}

function clickOn(element, x, y) {
  const rect = element.getBoundingClientRect();
  return new Promise((resolve, reject) => {
    chrome.gpuBenchmarking.pointerActionSequence([
        {source: 'mouse',
         actions: [
             {name: 'pointerMove', x: rect.x + x, y: rect.y + y},
             {name: 'pointerDown', x: rect.x + x, y: rect.y + y, button: 0},
             {name: 'pointerUp', button: 0}]
        }], resolve);
  });
}

const $ = document.querySelector.bind(document);

async function runTests() {
  $('#dt1').appendChild(createNewElement('summary', null, 'new 1'));

  $('#dt1c').appendChild(createNewElement("summary", null, "new 1"));
  await clickOn($('#dt1c'), 2, 2);

  $('#dt2').appendChild(createNewElement("summary", null, "new 1"));
  $('#dt2').appendChild(createNewElement("summary", null, "new 2"));

  $('#dt2c').appendChild(createNewElement("summary", null, "new 1"));
  $('#dt2c').appendChild(createNewElement("summary", null, "new 2"));
  await clickOn($('#dt2c'), 2, 2);

  $('#dt3').appendChild(createNewElement("summary", "new3", "new 1"));
  $('#dt3').insertBefore(createNewElement("summary", null, "new 2"), $('#new3'));

  $('#dt3c').appendChild(createNewElement("summary", "new3c", "new 1"));
  $('#dt3c').insertBefore(createNewElement("summary", null, "new 2"), $('#new3c'));
  await clickOn($('#dt3c'), 2, 2);

  $('#dt4').appendChild(createNewElement("summary", null, "new 1"));

  $('#dt4c').appendChild(createNewElement("summary", null, "new 1"));
  await clickOn($('#dt4c'), 2, 2);

  $('#dt5').insertBefore(createNewElement("summary", null, "new 1"), $('#summary5'));

  $('#dt5c').insertBefore(createNewElement("summary", null, "new 1"), $('#summary5c'));
  await clickOn($('#dt5c'), 2, 2);

  $('#dt6').appendChild(createNewElement("summary", null, "new 1"));

  $('#dt6c').appendChild(createNewElement("summary", null, "new 1"));
  await clickOn($('#dt6c'), 2, 2);

  $('#dt7').appendChild(createNewElement("summary", null, "new 1"));
  $('#dt7').appendChild(createNewElement("summary", null, "new 2"));

  $('#dt7c').appendChild(createNewElement("summary", null, "new 1"));
  $('#dt7c').appendChild(createNewElement("summary", null, "new 2"));
  await clickOn($('#dt7c'), 2, 2);

  $('#dt8').appendChild(createNewElement("summary", "new8", "new 1"));
  $('#dt8').insertBefore(createNewElement("summary", null, "new 2"), $('#new8'));

  $('#dt8c').appendChild(createNewElement("summary", "new8c", "new 1"));
  $('#dt8c').insertBefore(createNewElement("summary", null, "new 2"), $('#new8c'));
  await clickOn($('#dt8c'), 2, 2);

  $('#dt9').appendChild(createNewElement("summary", null, "new 1"));

  $('#dt9c').appendChild(createNewElement("summary", null, "new 1"));
  await clickOn($('#dt9c'), 2, 2);

  $('#dt10').insertBefore(createNewElement("summary", null, "new 1"), $('#summary10'));

  $('#dt10c').insertBefore(createNewElement("summary", null, "new 1"), $('#summary10c'));
  await clickOn($('#dt10c'), 2, 2);

  testRunner.notifyDone();
}

testRunner.waitUntilDone();

</script>
<body onload="runTests()">
<details id="dt1"></details>
<details id="dt1c"></details>
<details id="dt2"></details>
<details id="dt2c"></details>
<details id="dt3"></details>
<details id="dt3c"></details>
<details id="dt4"><summary>summary</summary></details>
<details id="dt4c"><summary>summary</summary></details>
<details id="dt5"><summary id="summary5">summary</summary></details>
<details id="dt5c"><summary id="summary5c">summary</summary></details>
<details id="dt6" open></details>
<details id="dt6c" open></details>
<details id="dt7" open></details>
<details id="dt7c" open></details>
<details id="dt8" open></details>
<details id="dt8c" open></details>
<details id="dt9" open><summary>summary</summary></details>
<details id="dt9c" open><summary>summary</summary></details>
<details id="dt10" open><summary id="summary10">summary</summary></details>
<details id="dt10c" open><summary id="summary10c">summary</summary></details>
</body>