<!DOCTYPE html>
<html>
<head>
<script src="../resources/runner.js"></script>
<script>
function runTest() {
    PerfTestRunner.measureRunsPerSecond({
        description: "This benchmark covers 'getElementsByClassName'.",
        run: function() {
            var testDocument = document.getElementById("testFrame").contentDocument;
            for (var i = 0; i < 10; i++) {
                var elements = testDocument.getElementsByClassName("example");
                // Do not access length so that we do not cache the elements.
                var j = 0;
                while (elements.item(j++)) { }
            }
        }
    });
}
</script>
</head>
<body onload="runTest()">
<iframe id="testFrame" src="../Parser/resources/html5.html" style="display:none" sandbox></iframe>
</body>
</html>