test_exnstack.xhtml

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<?xml version="1.0"?>

<?xml-stylesheet type="text/css" href="chrome://global/skin"?>

<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=735544

-->

<window title="Mozilla Bug 735544"

        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>

  <!-- test results are displayed in the html:body -->

  <body xmlns="http://www.w3.org/1999/xhtml">

  <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=735544"

     target="_blank">Mozilla Bug 735544</a>

 <iframe id='ifr0' onload="frameDone(0);" src="http://mochi.test:8888/tests/js/xpconnect/tests/mochitest/file_exnstack.html" />

 <iframe id='ifr1' onload="frameDone(1);" src="http://mochi.test:8888/tests/js/xpconnect/tests/mochitest/file_exnstack.html" />

  </body>

  <!-- test code goes here -->

  <script type="application/javascript">

  <![CDATA[

  /** Test for Bug 735544 - Allow exception stacks to cross compartment boundaries **/

  SimpleTest.waitForExplicitFinish();

  var gFramesDone = [false, false];

  function frameDone(idx) {

    gFramesDone[idx] = true;

    if (gFramesDone[0] && gFramesDone[1])

      startTest();

  function throwAsChrome() {

    // Grab the iframe content windows.

    var cwin0 = document.getElementById('ifr0').contentWindow;

    var cwin1 = document.getElementById('ifr1').contentWindow;

    // Have cwin0 call a function on cwin1 that throws.

    cwin0.wrappedJSObject.doThrow(cwin1);

  function startTest() {

    try {

      throwAsChrome();

      ok(false, "should throw");

    } catch (e) {

      let stackFrames = e.stack.split("\n");

      ok(/throwAsInner/.exec(stackFrames[0]),

         "The bottom frame should be thrown by the inner");

      ok(/throwAsOuter/.exec(stackFrames[2]),

         "The 3rd-from-bottom frame should be thrown by the other");

      ok(!/throwAsChrome/.exec(e.stack),

         "The entire stack should not cross into chrome.");

    SimpleTest.finish();

]]>

  </script>

</window>