gecko/dom/tests/mochitest/bugs/test_bug456151.html

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HTML

<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=456151
-->
<head>
<title>Test for Bug 456151</title>
<script type="application/javascript" src="/MochiKit/MochiKit.js"></script>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="application/javascript" src="/tests/SimpleTest/EventUtils.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=456151">Mozilla Bug 456151</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script type="application/javascript">
/** Test for Bug 456151 **/
var intercepted = false;
// Set up our new addEventListener
var proto = HTMLParagraphElement.prototype;
proto.oldAdd = proto.addEventListener;
proto.addEventListener = function(ev, list, capt) {
intercepted = true;
this.oldAdd(ev, list, capt);
}
proto.oldRemove = proto.removeEventListener;
proto.removeEventListener = function(ev, list, capt) {
intercepted = true;
this.oldRemove(ev, list, capt);
}
var called = false;
var func = function() { called = true; };
$("display").addEventListener("click", func, false);
is(intercepted, true, "Should have interecepted addEventListener call");
sendMouseEvent({type: "click"}, "display");
is(called, true, "Should have called event listener");
interecepted = false;
called = false;
$("display").removeEventListener("click", func, false);
is(intercepted, true, "Should have interecepted removeEventListener call");
sendMouseEvent({type: "click"}, "display");
is(called, false, "Should have removed event listener");
// And now some simple sanity tests
var recursion = false;
var x = document.createElement("span");
HTMLSpanElement.prototype.addEventListener =
function(a, b, c) {
return x.addEventListener(a,b,c);
}
try {
x.addEventListener("click", function() { called = true; }, false);
} catch (e) {
recursion = e.message.match(/recursion/);
}
SimpleTest.isDeeply(recursion, ["recursion"], "Caught infinite recursion");
</script>
</pre>
</body>
</html>