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diff --git a/Source/JavaScriptCore/tests/mozilla/ecma_3/Exceptions/15.11.4.4-1.js b/Source/JavaScriptCore/tests/mozilla/ecma_3/Exceptions/15.11.4.4-1.js
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@@ -0,0 +1,169 @@
+/* ***** BEGIN LICENSE BLOCK *****
+* Version: NPL 1.1/GPL 2.0/LGPL 2.1
+*
+* The contents of this file are subject to the Netscape 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/NPL/
+*
+* 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 Netscape Communications Corp.
+* Portions created by the Initial Developer are Copyright (C) 2001
+* the Initial Developer. All Rights Reserved.
+*
+* Contributors: d-russo@ti.com, pschwartau@netscape.com, joerg.schaible@gmx.de
+*
+* 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 NPL, 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 NPL, the GPL or the LGPL.
+*
+* ***** END LICENSE BLOCK *****
+*
+*
+* Date:    22 Jan 2002
+* SUMMARY: Testing Error.prototype.toString()
+*
+* Revised: 25 Nov 2002
+* See http://bugzilla.mozilla.org/show_bug.cgi?id=181909
+*
+* Note that ECMA-262 3rd Edition Final, Section 15.11.4.4 states that
+* Error.prototype.toString() returns an implementation-dependent string.
+* Therefore any testcase on this property is somewhat arbitrary.
+*
+* However, d-russo@ti.com pointed out that Rhino was returning this:
+*
+*               js> err = new Error()
+*               undefined: undefined
+*
+*               js> err = new Error("msg")
+*               undefined: msg
+*
+*
+* We expect Rhino to return what SpiderMonkey currently does:
+*
+*               js> err = new Error()
+*               Error
+*
+*               js> err = new Error("msg")
+*               Error: msg
+*
+*
+* i.e. we expect err.toString() === err.name if err.message is not defined;
+* otherwise, we expect err.toString() === err.name + ': ' + err.message.
+*
+* See also ECMA 15.11.4.2, 15.11.4.3
+*/
+//-----------------------------------------------------------------------------
+var UBound = 0;
+var bug = '(none)';
+var summary = 'Testing Error.prototype.toString()';
+var status = '';
+var statusitems = [];
+var actual = '';
+var actualvalues = [];
+var expect= '';
+var expectedvalues = [];
+var EMPTY_STRING = '';
+var EXPECTED_FORMAT = 0;
+
+
+status = inSection(1);
+var err1 = new Error('msg1');
+actual = examineThis(err1, 'msg1');
+expect = EXPECTED_FORMAT;
+addThis();
+
+status = inSection(2);
+var err2 = new Error(err1);
+actual = examineThis(err2, err1);
+expect = EXPECTED_FORMAT;
+addThis();
+
+status = inSection(3);
+var err3 = new Error();
+actual = examineThis(err3, EMPTY_STRING);
+expect = EXPECTED_FORMAT;
+addThis();
+
+status = inSection(4);
+var err4 = new Error(EMPTY_STRING);
+actual = examineThis(err4, EMPTY_STRING);
+expect = EXPECTED_FORMAT;
+addThis();
+
+// now generate a run-time error -
+status = inSection(5);
+try
+{
+  eval('1=2');
+}
+catch(err5)
+{
+ actual = examineThis(err5, '.*');
+}
+expect = EXPECTED_FORMAT;
+addThis();
+
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+
+
+/*
+ * Searches err.toString() for err.name + ':' + err.message,
+ * with possible whitespace on each side of the colon sign.
+ *
+ * We allow for no colon in case err.message was not provided by the user.
+ * In such a case, SpiderMonkey and Rhino currently set err.message = '',
+ * as allowed for by ECMA 15.11.4.3. This makes |pattern| work in this case.
+ *
+ * If this is ever changed to a non-empty string, e.g. 'undefined',
+ * you may have to modify |pattern| to take that into account -
+ *
+ */
+function examineThis(err, msg)
+{
+  var pattern = err.name + '\\s*:?\\s*' + msg;
+  return err.toString().search(RegExp(pattern));
+}
+
+
+function addThis()
+{
+  statusitems[UBound] = status;
+  actualvalues[UBound] = actual;
+  expectedvalues[UBound] = expect;
+  UBound++;
+}
+
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber (bug);
+  printStatus (summary);
+
+  for (var i = 0; i < UBound; i++)
+  {
+    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
+  }
+
+  exitFunc ('test');
+}