<!DOCTYPE html>
<body>
<script src="../resources/runner.js"></script>
<script>
var isDone = false;

function runTest() {
    var numRound = 1000;
    var worker = new Worker('resources/worker.js');

    var startTime = PerfTestRunner.now();
    worker.onmessage = function(event) {
        numRound--;
        if (numRound > 0) {
            worker.postMessage('next');
        } else {
            PerfTestRunner.measureValueAsync(PerfTestRunner.now() - startTime);
            if (!isDone)
                runTest();
        }
    };
    worker.postMessage('start');
}

function testDone() {
    isDone = true;
}

window.onload = function () {
    PerfTestRunner.startMeasureValuesAsync({
        description: "Measures time to run 1000 postMessage round trips in serial.",
        unit: 'ms',
        run: runTest,
        done: testDone,
    });
};
</script>
<div id="log"></div>
</body>