diff --git a/js/tests/js1_5/extensions/toLocaleFormat-02.js b/js/tests/js1_5/extensions/toLocaleFormat-02.js
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+++ b/js/tests/js1_5/extensions/toLocaleFormat-02.js
@@ -0,0 +1,135 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** 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) 2005
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s): Mike Shaver
+ *                 Bob Clary
+ *
+ * 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 ***** */
+
+var gTestfile = 'toLocaleFormat-02.js';
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 291494;
+var summary = 'Date.prototype.toLocaleFormat extension';
+var actual = '';
+var expect = '';
+var temp;
+
+/*
+ * SpiderMonkey only.
+ *
+ * This test uses format strings which are not supported cross
+ * platform and are expected to fail on at least some platforms
+ * however they all currently pass on Linux (Fedora Core 6). They are
+ * included here in order to increase coverage for cases where a crash
+ * may occur.  These failures will be tracked in the
+ * mozilla/js/tests/public-failures.txt list.
+ * 
+ */
+
+enterFunc ('test');
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+ 
+var date = new Date("06/05/2005 00:00:00 GMT-0000");
+
+expect = '20';
+actual = date.toLocaleFormat('%C');
+reportCompare(expect, actual, 'Date.toLocaleFormat("%C")');
+
+expect = date.toLocaleFormat('%C%y');
+actual = date.toLocaleFormat('%Y');
+reportCompare(expect, actual, 'Date.toLocaleFormat("%C%y") == ' +
+              'Date.toLocaleFormat("%Y")');
+
+expect = date.toLocaleFormat('%m/%d/%y');
+actual = date.toLocaleFormat('%D');
+reportCompare(expect, actual, 'Date.toLocaleFormat("%m/%d/%y") == ' +
+              'Date.toLocaleFormat("%D")');
+
+expect = (date.getTimezoneOffset() > 0) ? ' 4' : ' 5';
+actual = date.toLocaleFormat('%e');
+reportCompare(expect, actual, 'Date.toLocaleFormat("%e")');
+
+expect = date.toLocaleFormat('%Y-%m-%d');
+actual = date.toLocaleFormat('%F');
+reportCompare(expect, actual, 'Date.toLocaleFormat("%Y-%m-%d") == ' +
+              'Date.toLocaleFormat("%F")');
+
+expect = '05';
+actual = date.toLocaleFormat('%g');
+reportCompare(expect, actual, 'Date.toLocaleFormat("%g")');
+
+expect = '2005';
+actual = date.toLocaleFormat('%G');
+reportCompare(expect, actual, 'Date.toLocaleFormat("%G")');
+
+expect = date.toLocaleFormat('%b');
+actual = date.toLocaleFormat('%h');
+reportCompare(expect, actual, 'Date.toLocaleFormat("%b") == ' +
+              'Date.toLocaleFormat("%h")');
+
+expect = '\n';
+actual = date.toLocaleFormat('%n');
+reportCompare(expect, actual, 'Date.toLocaleFormat("%n") == "\\n"');
+
+expect = date.toLocaleFormat('%I:%M:%S %p');
+actual = date.toLocaleFormat('%r');
+reportCompare(expect, actual, 'Date.toLocaleFormat("%I:%M:%S %p") == ' +
+              'Date.toLocaleFormat("%r")');
+
+expect = date.toLocaleFormat('%H:%M');
+actual = date.toLocaleFormat('%R');
+reportCompare(expect, actual, 'Date.toLocaleFormat("%H:%M") == ' +
+              'Date.toLocaleFormat("%R")');
+
+expect = '\t';
+actual = date.toLocaleFormat('%t');
+reportCompare(expect, actual, 'Date.toLocaleFormat("%t") == "\\t"');
+
+expect = date.toLocaleFormat('%H:%M:%S');
+actual = date.toLocaleFormat('%T');
+reportCompare(expect, actual, 'Date.toLocaleFormat("%H:%M:%S") == ' +
+              'Date.toLocaleFormat("%T")');
+
+expect = String(6 + ((date.getTimezoneOffset() > 0) ? 0 : 1));
+actual = date.toLocaleFormat('%u');
+reportCompare(expect, actual, 'Date.toLocaleFormat("%u")');
+
+expect = '22';
+actual = date.toLocaleFormat('%V');
+reportCompare(expect, actual, 'Date.toLocaleFormat("%V")');
+
+expect = date.toLocaleFormat('%m/%d/%Y');
+actual = date.toLocaleFormat('%x');
+reportCompare(expect, actual, 'Date.toLocaleFormat("%m/%d/%y) == ' +
+              'Date.toLocaleFormat("%x")');