summaryrefslogtreecommitdiffstats
path: root/js/xpconnect/tests/mochitest/test_bug960820.html
blob: 9fdd3ac2fb7aaf259406a695991a8be3d3c501d5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
<!DOCTYPE HTML>
<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 (/specialpowers/.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>
</html>