change-row-border-width-floating-container.html

<!doctype html>
<style>
    td {
        width: 50px;
        height: 50px;
        padding: 0px;
    }
</style>
<script src="../../resources/check-layout.js"></script>
<script src="../../resources/run-after-layout-and-paint.js"></script>
<script type="text/javascript">
    function shrinkRowBorder() {
        document.getElementById("row").style.borderWidth = "4px";
        checkLayout("div");
    }
    runAfterLayoutAndPaint(shrinkRowBorder, true);
</script>
<p>There should be a square below with an internal blue border and external
black border. The external black border is around a shrink-to-fit div.</p>
<div style="float:left; border: 1px solid black" data-expected-width=60>
    <table style="border-collapse:collapse" data-expected-width=58 data-expected-height=58>
        <tr style="border:18px solid lightblue" id="row">
            <td></td>
        </tr>
    </table>
</div>

chromium/third_party/blink/web_tests/fast/table/change-row-border-width-floating-container.html