gecko-dev/js/xpconnect/tests/mochitest/test_bug390488.html

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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=390488
-->
<head>
<title>Test for Bug 390488</title>
<script type="text/javascript" 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=390488">Mozilla Bug 390488</a>
<p id="display">
<div id="testdiv" onclick="checkForStacks();" style="visibility:hidden">
</div>
</p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
/** Test for Bug 390488 **/
function getStack1() {
var func = arguments.callee.caller;
var stack = "";
for (var i = 1; func && i < 8; i++) {
stack += " " + i + ". " + func.name;
func = func.caller;
}
return stack;
}
function getStack2() {
var stack = new Error().stack;
// Remove the two lines due to calling this
return stack.substring(stack.indexOf("\n", stack.indexOf("\n")+1)+1);
}
function simulateClick() {
var evt = document.createEvent("MouseEvents");
evt.initMouseEvent("click", true, true, window,
0, 0, 0, 0, 0, false, false, false, false, 0, null);
$("testdiv").dispatchEvent(evt);
}
function matches(s, p, name) {
ok(s.match(p) != null, name,
"got " + uneval(s) + ", expected a string matching " + uneval(p));
}
function checkForStacks() {
matches(getStack1(), /checkForStacks .* onclick .* simulateClick/,
"Stack from walking caller chain should be correct");
isnot(getStack2().indexOf("simulateClick@"), -1,
"Stack from |new Error().stack| should include simulateClick");
}
simulateClick();
</script>
</pre>
</body>
</html>