display-list-item-height-after-dom-change.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Display: reflowing a display:list-item on dom changes - non-zero height</title>
<link rel="author" title="Rune Lillesveen" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-display-3/#list-items">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<ul>
  <li id="item" style="background:green">
    <div id="content" style="overflow:hidden">Text<div>
  </li>
</ul>
<script>
  test(function() {
    document.body.offsetTop; // force layout
    item.insertBefore(document.createTextNode("This text should have a green background"), item.firstChild);
    content.innerHTML = "";
    assert_not_equals(item.clientHeight, 0, "The height of the LI should not be 0px.");
  }, "List item height after DOM change.");
</script>

chromium/third_party/blink/web_tests/external/wpt/css/css-display/display-list-item-height-after-dom-change.html