chromium/third_party/blink/web_tests/fast/table/switch-table-layout-dynamic-cells.html

<!DOCTYPE HTML>
<html>
<head>
<style>
#container {
    width: 1px;
}
#table {
    width: 200px;
    table-layout: fixed;
}
.wide-cell {
    width: 100px;
    padding: 0;
}
</style>
<script src="../../resources/check-layout.js"></script>
</head>
<body>
    This test verifies table cell width is correctly updated after a table-layout change.
    <div id="container">
        <table id="table">
            <tr><td class="wide-cell" data-expected-width="100"></td><td class="wide-cell" data-expected-width="100"></td></tr>
        </table>
    </div>
    <div id="test-output"></div>
</body>
<script>
document.body.offsetTop;

var table = document.getElementById("table");
var row = table.insertRow();
row.insertCell().setAttribute("data-expected-width", "100")
row.insertCell().setAttribute("data-expected-width", "100")

document.body.offsetTop;

var container = document.getElementById("container");
container.style.setProperty("width", "500px");

table.style.setProperty("table-layout", "auto");
table.style.setProperty("width", "auto");

window.checkLayout("#table tr td", document.getElementById("test-output"));
</script>
</html>