gecko-dev/dom/bindings/test/test_interfaceToString.html

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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=742156
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 742156</title>
<script type="application/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=742156">Mozilla Bug 742156</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script type="application/javascript">
/** Test for Bug 742156 **/
var nativeToString = ("" + String.replace).replace("replace", "EventTarget");
try {
var eventTargetToString = "" + EventTarget;
is(eventTargetToString, nativeToString,
"Stringifying a DOM interface object should return the same string" +
"as stringifying a native function.");
}
catch (e) {
ok(false, "Stringifying a DOM interface object shouldn't throw.");
}
try {
eventTargetToString = Function.prototype.toString.call(EventTarget);
is(eventTargetToString, nativeToString,
"Stringifying a DOM interface object via Function.prototype.toString " +
"should return the same string as stringifying a native function.");
}
catch (e) {
ok(false, "Stringifying a DOM interface object shouldn't throw.");
}
</script>
</pre>
</body>
</html>