chromium/third_party/blink/web_tests/external/wpt/css/css-text/word-break/auto-phrase/word-break-auto-phrase-001.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Text level 4 Test: word-break:auto-phrase in Japanese</title>
<link rel="author" title="Florian Rivoal" href="http://florian.rivoal.net/">
<link rel="help" href="https://drafts.csswg.org/css-text-4/#word-break-property">
<link rel="match" href="reference/word-break-auto-phrase-001-ref.html">
<meta name="assert" content="word-break:auto-phrase inserts virtual word boundaries at reasonable points.">
<style>
div {
  font-size: 2em;
  border: solid black;
  margin: 5px;
  width: min-content; /*not 0, to avoid falling into overflow fallback behavior */
  word-break: normal
}
#test {
  word-break: auto-phrase;
}
#ref {
  border-color: blue;
  word-break: keep-all;
}
</style>

<p>Test passes if the black box is identical to the blue one.

<div id=test lang=ja>
  東京へ行きましょう。
</div>
<div id=ref lang=ja>
  東京へ<wbr>行きましょう。
</div>
<!-- As phrase detection is up to the UA,
    arguably an alternative decomposition
    with wbr before AND after へ
    might be OK,
    but the last phrase is longer anyway,
    so the difference is not visible.
-->