chromium/third_party/blink/web_tests/external/wpt/css/css-text/line-break/line-break-strict-hyphens-001.html

<!doctype html>
<html lang=en>
<meta charset=utf-8>
<title>CSS test: hyphens and line-break:strict</title>
<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
<link rel=help href="https://drafts.csswg.org/css-text-3/#propdef-line-break">
<link rel=match href="reference/line-break-normal-hyphens-001-ref.html">
<meta name=assert content="breaks before U+2010 or U+2013 when line-break is strict are not allowed when the preceding character has class ID.">
<style>
div {
  width: 2em;
  line-break: strict;
  border: solid cyan;
}
</style>

<p>The test passes if the second line in each box below ends with a hyphen.
(Note: the hyphens in each box do no need to be the same size.)

<div>文文‐文</div>
<div>文文–文</div>