test_nested_event_loop_spin_and_idle_tasks.html

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<!DOCTYPE HTML>

<html>

<head>

  <meta charset="utf-8">

  <title>Nested event loop spinning and idle task handling</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>

  <script>

    if (!location.search.includes("newpage")) {

      SimpleTest.waitForExplicitFinish();

      var win = window.open(this.location + "?newpage");

      win.onload = function() {

        var xhr = new XMLHttpRequest();

        // Spin the event loop using a synchronous XMLHttpRequest.

        xhr.open("GET", "slow.sjs", false);

        xhr.send();

        ok(win.didRunIdleCallback, "Should have run an idle callback.");

        win.close();

        SimpleTest.finish();

    } else {

      var didRunIdleCallback = false;

      requestIdleCallback(function() {

        didRunIdleCallback = true;

});

  </script>

</head>

<body>

<p id="display"></p>

<div id="content" style="display: none"></div>

<pre id="test"></pre>

</body>

</html>