test_async_setTimeout_stack.html

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<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=1142577

-->

<head>

  <meta charset="utf-8">

  <title>Test for Bug 1142577 - Async stacks for setTimeout</title>

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

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

</head>

<body>

  <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1142577">Mozilla Bug 1142577</a>

  <pre id="stack"></pre>

  <script type="application/javascript">

  SimpleTest.waitForExplicitFinish();

  SimpleTest.requestFlakyTimeout("Testing async stacks across setTimeout");

  function getFunctionName(frame) {

    return frame.slice(0, frame.indexOf("@"));

  function a() { b() }

  function b() { c() }

  function c() { setTimeout(d, 1) }

  function d() { e() }

  function e() { f() }

  function f() { setTimeout(g, 1) }

  function g() { h() }

  function h() { i() }

  function i() {

    var stackString = Error().stack;

    document.getElementById("stack").textContent = stackString;

    var frames = stackString

            .split("\n")

            .map(getFunctionName)

            .filter(function (name) { return !!name; });

    is(frames[0], "i");

    is(frames[1], "h");

    is(frames[2], "g");

    is(frames[3], "setTimeout handler*SimpleTest_setTimeoutShim");

    is(frames[4], "f");

    is(frames[5], "e");

    is(frames[6], "d");

    is(frames[7], "setTimeout handler*SimpleTest_setTimeoutShim");

    is(frames[8], "c");

    is(frames[9], "b");

    is(frames[10], "a");

    SimpleTest.finish();

  SpecialPowers.pushPrefEnv(

    {"set": [['javascript.options.asyncstack_capture_debuggee_only', false]]},

a);

  </script>

</body>

</html>