chromium/third_party/blink/web_tests/external/wpt/css/css-text/overflow-wrap/overflow-wrap-cluster-001.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Text level 3 Test: overflow-wrap:break-word and grapheme clusters</title>
<link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net/">
<link rel="help" href="https://www.w3.org/TR/css-text-3/#overflow-wrap-property">
<link rel="match" href="reference/overflow-wrap-cluster-001-ref.html">
<meta name="assert" content="grapheme clusters must stay together as one unit when a line is broken by overflow-wrap:break-word">
<style>
  div {
    font-size: 4em;
    width: 4em;
  }
  #test {
    overflow-wrap: break-word;
    width: 0;
  }
</style>

<p>Test passes if there are four identical lines of text below.
<div lang=hi id=ref>&#x0937;&#x093F;<br>&#x0937;&#x093F;</div>
<div lang=hi id=test>&#x0937;&#x093F;&#x0937;&#x093F;</div>