scrollLeft-of-scroller-with-wider-scrollbar.html

<!DOCTYPE html>
<title>The maximum value of scrollLeft shouldn't be affected by scrollbar even if it's wider than scroller</title>
<meta charset="utf-8">
<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scrollleft">

<div id="scroller" style="overflow: scroll; width: 5px;height: 300px;">
    <div style="width:100px; height: 1px"></div>
</div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
    test(function() {
        scroller.scrollLeft = 1000;
        assert_equals(scroller.scrollLeft, 100);
    }, "Test the maxmium value of scrollLeft");
</script>

chromium/third_party/blink/web_tests/external/wpt/css/cssom-view/scrollLeft-of-scroller-with-wider-scrollbar.html