chromium/third_party/blink/web_tests/external/wpt/css/cssom/CSSCounterStyleRule.html

<!doctype html>
<meta charset="utf-8">
<title>CSSOM - CSSCounterStyleRule interface</title>
<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#csscounterstylerule">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
  @counter-style foo {
    system: cyclic;
    symbols: ‣;
    suffix: " ";
  }
</style>
<script>
test(function() {
  // TODO: The exact serialization isn't well specified (the ordering of the
  // descriptors isn't defined).
  let rule = document.styleSheets[0].cssRules[0];
  assert_false(rule.cssText.includes('\n'));
}, "CSSCounterStyleRule.cssText doesn't serialize with newlines");
</script>