chromium/third_party/blink/web_tests/paint/invalidation/multicol/multicol-resize-with-rule.html

<!DOCTYPE html>
<div id="columns" style="columns: 8; column-rule: 2px solid green; width: 400px">
<div style="height: 1600px"></div>
</div>
<script src="../resources/text-based-repaint.js"></script>
<script>
function repaintTest() {
  columns.style.width = '600px';
}
onload = runRepaintAndPixelTest;
</script>