cross-shadow-boundary-6.html | Explore in Territory

<!doctype html>
<html class="reftest-wait">
<head>
<link rel=match href="cross-shadow-boundary-6-ref.html">
</head>
<span id="span">Start
<div>
  <template shadowrootmode="open">
    <span id="inner1">inner1</p>
    <span id="inner2">inner2</p>
  </template>
</div>
</span>
<script>
  const start = document.getElementById("span").firstChild;
  const end = document.querySelector('div').shadowRoot.getElementById("inner2");

  async function waitForRAFs() {
    return new Promise(resolve => {
      window.requestAnimationFrame(() => {
        window.requestAnimationFrame(() => {
          window.requestAnimationFrame(() => {
            resolve();
          });
        });
      });
    });
  }

  async function runTest() {
    window.getSelection().setBaseAndExtent(start, 3, end.firstChild, 3);
    await waitForRAFs();

    window.getSelection().removeAllRanges();
    await waitForRAFs();

    window.getSelection().setBaseAndExtent(start, 3, end.firstChild, 3);
    await waitForRAFs();
    document.documentElement.className = "";
  }

  runTest();
</script>
</html>

chromium/third_party/blink/web_tests/external/wpt/selection/shadow-dom/cross-shadow-boundary-6.html