File: dynamic-mrow-like-001.html

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<!DOCTYPE html>
<html class="reftest-wait">
<head>
<meta charset="utf-8">
<title>Dynamic mrow-like elements</title>
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<link rel="help" href="https://w3c.github.io/mathml-core/#horizontally-group-sub-expressions-mrow">
<script src="/mathml/support/mathml-fragments.js"></script>
<meta name="assert" content="Dynamically set children of mrow-like elements.">
<style>
  math {
      font: 25px/1 Ahem;
      background: lightblue;
  }
  li {
      padding: 2px;
  }
</style>
<link rel="match" href="dynamic-mrow-like-001-ref.html">
<script>
  window.addEventListener("load", function() {

      // force initial layout so we're sure what we're testing against
      document.documentElement.getBoundingClientRect();

      Array.from(document.getElementsByClassName("testedElement")).forEach(e => {
          if (e.children.length == 0) {
              // Add 3 children.
              let mn = FragmentHelper.createElement("mn");
              mn.textContent = "X";
              e.appendChild(mn);
              mn = FragmentHelper.createElement("mn");
              mn.textContent = "\u00C9";
              e.appendChild(mn);
              mn = FragmentHelper.createElement("mn");
              mn.textContent = "p";
              e.insertBefore(mn, e.lastElementChild);
          } else {
              // Remove last child.
              e.removeChild(e.lastElementChild);
          }
      });

      document.documentElement.classList.remove('reftest-wait');
  });
</script>
</head>
<body>
  <ol>
    <li><math class="testedElement"></math></li>
    <li><math class="testedElement"><mn>X</mn><mn>p</mn><mn>&#x00C9;</mn></math></li>
    <li><math><mrow class="testedElement"></mrow></math></li>
    <li><math><mrow class="testedElement"><mn>X</mn><mn>p</mn><mn>&#x00C9;</mn></mrow></math></li>
    <li><math><maction class="testedElement"></maction></math></li>
    <li><math><maction class="testedElement"><mn>X</mn><mn>p</mn><mn>&#x00C9;</mn></maction></math></li>
    <li><math><merror class="testedElement"></merror></math></li>
    <li><math><merror class="testedElement"><mn>X</mn><mn>p</mn><mn>&#x00C9;</mn></merror></math></li>
    <li><math><mphantom class="testedElement"></mphantom></math></li>
    <li><math><mphantom class="testedElement"><mn>X</mn><mn>p</mn><mn>&#x00C9;</mn></mphantom></math></li>
    <li><math><mstyle class="testedElement"></mstyle></math></li>
    <li><math><mstyle class="testedElement"><mn>X</mn><mn>p</mn><mn>&#x00C9;</mn></mstyle></math></li>
    <li><math><semantics class="testedElement"></semantics></math></li>
    <li><math><semantics class="testedElement"><mn>X</mn><mn>p</mn><mn>&#x00C9;</mn></semantics></math></li>
    <li><math><unknown class="testedElement"></unknown></math></li>
    <li><math><unknown class="testedElement"><mn>X</mn><mn>p</mn><mn>&#x00C9;</mn></unknown></math></li>
    <li><math><none class="testedElement"></none></math></li>
    <li><math><none class="testedElement"><mn>X</mn><mn>p</mn><mn>&#x00C9;</mn></none></math></li>
    <li><math><mprescripts class="testedElement"></mprescripts></math></li>
    <li><math><mprescripts class="testedElement"><mn>X</mn><mn>p</mn><mn>&#x00C9;</mn></mprescripts></math></li>
    <li><math><mfenced class="testedElement"></mfenced></math></li>
    <li><math><mfenced class="testedElement"><mn>X</mn><mn>p</mn><mn>&#x00C9;</mn></mfenced></math></li>
    <li><math><a class="testedElement"></a></math></li>
    <li><math><a class="testedElement"><mn>X</mn><mn>p</mn><mn>&#x00C9;</mn></a></math></li>
  </ol>
</body>
</html>