<!DOCTYPE html>
<html>
<head>
<script src="../../../resources/js-test-pre.js"></script>
</head>
<body>
<script>
    window.requestAnimationFrame(function() {
        parent.callbackInvoked = true;
        doWork();
    });

    function timeoutPromise(interval) {
        return new Promise((resolve, reject) => {
            setTimeout(function(){
                resolve("done");
            }, interval);
        });
    }

    async function doWork() {
        parent.doDisplay();
        await timeoutPromise(100);
        parent.doCheckResult();
        await timeoutPromise(100);
        parent.doTestDone();
    }   
</script>
</body>
</html>