gecko/js/tests/e4x/Regress/regress-354998.js

88 lines
2.8 KiB
JavaScript
Executable File

/* -*- Mode: java; tab-width:8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is JavaScript Engine testing utilities.
*
* The Initial Developer of the Original Code is
* Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s): Igor Bukanov
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
gTestfile = 'regress-354998.js';
var BUGNUMBER = 354998;
var summary = 'prototype should not be enumerated for XML objects.';
var actual = '';
var expect = '';
printBugNumber(BUGNUMBER);
START(summary);
function test()
{
var list = <><a/><b/></>;
var count = 0;
var now = Date.now;
var time = now();
for (var i in list) {
++count;
}
time = now() - time;
if (count != 2) {
if (count < 2)
throw "Enumerator has not looped over all properties, count="+count;
throw "Enumerator has looped over prototype chain of xml, count="+count;
}
return time;
}
var time1 = test();
for (var i = 0; i != 1000*1000; ++i)
Object.prototype[i] = i;
var time2 = test();
// clean up Object prototype so it won't
// hang enumerations in options()...
for (var i = 0; i != 1000*1000; ++i)
delete Object.prototype[i];
if (time1 * 10 < time2) {
throw "Assigns to Object.prototype increased time of XML enumeration from "+
time1+"ms to "+time2+"ms";
}
TEST(1, expect, actual);
END();