css/css-pseudo/highlight-cascade/highlight-pseudos-inheritance-computed-001.html

<!doctype html>
<meta charset="utf-8">
<title>CSS Pseudo-Elements Test: highlight selectors inheritance getComputedStyle</title>
<link rel="help" href="https://drafts.csswg.org/css-pseudo/#highlight-selectors">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<meta name="assert" content="This test checks that computed style is properly resolved for highlight pseudos even when 'display: contents' is involved.">
<style>
  .target::selection {
    background-color: green;
    color: lime;
  }
  .target::target-text {
    background-color: green;
    color: lime;
  }
  .target::search-text {
    background-color: green;
    color: lime;
  }
  .target::search-text:current {
    background-color: red;
    color: red;
  }
  .target::spelling-error {
    background-color: green;
    color: lime;
  }
  .target::grammar-error {
    background-color: green;
    color: lime;
  }
  .target::highlight(foo) {
    background-color: green;
    color: lime;
  }
</style>
<div class="target"><span id="child1"></span></div>
<div class="target" style="display: contents;"><span id="child2"></span></div>
<script>
  for (const pseudo of ["::selection", "::target-text", "::search-text", "::spelling-error", "::grammar-error", "::highlight(foo)"]) {
    for (const child of [child1, child2]) {
      test(() => {
        let style = getComputedStyle(child, pseudo);
        assert_equals(style.backgroundColor, "rgb(0, 128, 0)", "Background color is green.");
        assert_equals(style.color, "rgb(0, 255, 0)", "Color is lime.");
      }, `getComputedStyle() for ${pseudo} at #${child.id}`);
    }
  }
</script>