chromium/third_party/blink/web_tests/external/wpt/css/css-text/word-space-transform/word-space-transform-017.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Text level 4 Test: word-space-transform: space auto-phase</title>
<link rel="author" title="Florian Rivoal" href="http://florian.rivoal.net/">
<link rel="help" href="https://drafts.csswg.org/css-text-4/#word-space-transform">
<link rel="match" href="reference/word-space-transform-017-ref.html">
<meta name="assert" content="word-space-transform: space auto-phrase inserts virtual word boundaries at reasonable points, which can then be expanded into spaces">
<style>
div {
  font-size: 2em;
  border: solid black;
  margin: 5px;
  width: 30ch;
}
#test {
  word-space-transfor: space auto-phrase;
}
#ref {
  border-color: blue;
}
</style>

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

<div id=test lang=th>กรุงเทพคือสวยงาม</div>
<div id=ref lang=th>กรุงเทพ คือ สวยงาม</div>