test_bug960820.html

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<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=960820

-->

<head>

  <meta charset="utf-8">

  <title>Test for Bug 960820</title>

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

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

  <script type="application/javascript">

  /** Test for exception stacks crossing **/

  // Synchronous event dispatch creates a new script entry point. At the time

  // of this writing, an event listener defined in a Sandbox will cause the

  // SafeJSContext to be pushed to the cx stack, which differs from the JSContext

  // associated with this DOM window. So we test both kinds of boundaries.

  var sb = new SpecialPowers.Cu.Sandbox(SpecialPowers.Services.scriptSecurityManager.getSystemPrincipal());

  sb.win = window;

  SpecialPowers.Cu.evalInSandbox("win.document.addEventListener('click', " +

                                 "function clickHandler() { win.wrappedJSObject.clickCallback(); });", sb);

  function clickCallback() {

    var stack = (new Error()).stack;

    ok(true, "Invoked clickCallback. Stack: " + stack);

    ok(/clickCallback/.test(stack), "clickCallback should be in the stack");

    ok(!/clickHandler/.test(stack), "clickHandler should not be in the stack");

    ok(/dispatchClick/.test(stack), "dispatchClick should be in the stack");

    // Check Components.stack, but first filter through the SpecialPowers junk.

    var stack = SpecialPowers.wrap(SpecialPowers.Components).stack;

    while (/testing-common/.test(stack)) {

      stack = stack.caller;

    ok(/clickCallback/.test(stack), "clickCallback should be reachable via Components.stack");

    ok(/clickHandler/.test(stack.caller), "clickHandler should be reachable via Components.stack");

    ok(/dispatchClick/.test(stack.caller.caller), "dispatchClick hould be reachable via Components.stack");

  function dispatchClick() {

    document.dispatchEvent(new MouseEvent('click'));

  dispatchClick();

  </script>

</head>

<body>

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=960820">Mozilla Bug 960820</a>

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

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

</div>

<pre id="test">

</pre>

</body>

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