selection-within-composited-scroller.html

<!doctype HTML>
<div id="scroller" style="width: 200px; height: 200px; overflow: scroll; background: lightgray; will-change: transform">
<div style="width: 100px; height: 600px; background: lightblue; margin-bottom: 10px"></div>
<div id="target" style="width: 200px; height: 1000px; background: lightblue; margin-bottom: 10px">test</div>
</div>
<script src="../resources/text-based-repaint.js"></script>
<script>
scroller.scrollTop = 450;
function repaintTest() {
    var range = document.createRange();
    range.selectNode(target);
    window.getSelection().addRange(range);
}
onload = runRepaintAndPixelTest;
</script>

chromium/third_party/blink/web_tests/paint/invalidation/selection/selection-within-composited-scroller.html