chromium/third_party/blink/web_tests/external/wpt/css/css-highlight-api/painting/custom-highlight-painting-019.html

<!DOCTYPE html>
<meta charset="UTF-8">
<title>CSS Highlight API Test: Non-overlapping highlight colors</title>
<link rel="author" title="Stephen Chenney" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#highlight-text">
<link rel="match" href="custom-highlight-painting-019-ref.html">
<meta name="assert" value="When painting non-overlapping highlights the current color should be resolved against the next layer beneath the highlight at the current location within the span.">
<meta name="fuzzy" content="0-250;0-6">
<style>
  body {
    text-decoration: 2px green underline;
  }
  ::highlight(foo) {
    color:blue;
    text-decoration: 2px blue underline;
  }
  ::highlight(bar) {
    text-decoration-line: underline;
    text-decoration-thickness: 2px;
  }
</style>
<body>This part should be blue and this part should be black
<script>
  let textNode = document.body.firstChild;

  let r1 = new Range();
  r1.setStart(textNode, 0);
  r1.setEnd(textNode, 24);

  let r2 = new Range();
  r2.setStart(textNode, 29);
  r2.setEnd(textNode, 54);

  let h1 = new Highlight(r1);
  let h2 = new Highlight(r2);

  CSS.highlights.set("foo", h1);
  CSS.highlights.set("bar", h2);
</script>