chromium/third_party/blink/web_tests/external/wpt/css/css-flexbox/scrollbars-auto-min-content-sizing.html

<!DOCTYPE html>
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1127415">
<meta name="assert" content="The presence of a scrollbar should not make a min-sized flexbox, and a single flex-item differ in size.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div style="display: flex; width: 100px;">
  <div id="outer" style="display: flex; width: min-content; height: 100px;">
    <div id="inner" style="flex: 0 0 auto; overflow-y: auto;">
      <div style="width: 100px; height: 3000px;"></div>
    </div>
  </div>
</div>
<script>
test(() => {
  const outer = document.getElementById('outer');
  const inner = document.getElementById('inner');
  assert_equals(outer.getBoundingClientRect().width, inner.getBoundingClientRect().width);
});
</script>