chromium/third_party/blink/web_tests/external/wpt/css/css-text/white-space/white-space-pre-wrap-trailing-spaces-003.html

<!doctype html>
<meta charset=utf-8>
<title>CSS Text test: intrinsic minimum sizing of trailing spaces with white-space:pre-wrap</title>
<link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net/">
<link rel="help" href="https://drafts.csswg.org/css-text-3/#white-space-phase-2">
<link rel="match" href="reference/white-space-pre-wrap-trailing-spaces-003-ref.html">
<meta name="assert" content="Preserved white space at the end of soft-wrapped lines is hanged when white-space is pre-wrap, and therefore does not count when computing the (minimum) intrinsic size.">

<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
div {
  font: 25px/1 Ahem;
  white-space: pre-wrap;
  width: min-content;
  color: green;
  background: red;
}
</style>

<p>This test passes if there is a green rectangle and no red.

<div>X    X X X</div>