1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* ***** BEGIN LICENSE BLOCK *****
3 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
5 * The contents of this file are subject to the Mozilla Public License Version
6 * 1.1 (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 * http://www.mozilla.org/MPL/
10 * Software distributed under the License is distributed on an "AS IS" basis,
11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 * for the specific language governing rights and limitations under the
15 * The Original Code is JavaScript Engine testing utilities.
17 * The Initial Developer of the Original Code is
18 * Netscape Communications Corp.
19 * Portions created by the Initial Developer are Copyright (C) 2001
20 * the Initial Developer. All Rights Reserved.
23 * d-russo@ti.com, pschwartau@netscape.com, joerg.schaible@gmx.de
25 * Alternatively, the contents of this file may be used under the terms of
26 * either the GNU General Public License Version 2 or later (the "GPL"), or
27 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28 * in which case the provisions of the GPL or the LGPL are applicable instead
29 * of those above. If you wish to allow use of your version of this file only
30 * under the terms of either the GPL or the LGPL, and not to allow others to
31 * use your version of this file under the terms of the MPL, indicate your
32 * decision by deleting the provisions above and replace them with the notice
33 * and other provisions required by the GPL or the LGPL. If you do not delete
34 * the provisions above, a recipient may use your version of this file under
35 * the terms of any one of the MPL, the GPL or the LGPL.
37 * ***** END LICENSE BLOCK ***** */
42 * SUMMARY: Testing Error.prototype.toString()
44 * Revised: 25 Nov 2002
45 * See http://bugzilla.mozilla.org/show_bug.cgi?id=181909
47 * Note that ECMA-262 3rd Edition Final, Section 15.11.4.4 states that
48 * Error.prototype.toString() returns an implementation-dependent string.
49 * Therefore any testcase on this property is somewhat arbitrary.
51 * However, d-russo@ti.com pointed out that Rhino was returning this:
53 * js> err = new Error()
54 * undefined: undefined
56 * js> err = new Error("msg")
60 * We expect Rhino to return what SpiderMonkey currently does:
62 * js> err = new Error()
65 * js> err = new Error("msg")
69 * i.e. we expect err.toString() === err.name if err.message is not defined;
70 * otherwise, we expect err.toString() === err.name + ': ' + err.message.
72 * See also ECMA 15.11.4.2, 15.11.4.3
74 //-----------------------------------------------------------------------------
76 var BUGNUMBER = '(none)';
77 var summary = 'Testing Error.prototype.toString()';
81 var actualvalues = [];
83 var expectedvalues = [];
84 var EMPTY_STRING = '';
85 var EXPECTED_FORMAT = 0;
88 status = inSection(1);
89 var err1 = new Error('msg1');
90 actual = examineThis(err1, 'msg1');
91 expect = EXPECTED_FORMAT;
94 status = inSection(2);
95 var err2 = new Error(err1);
96 actual = examineThis(err2, err1);
97 expect = EXPECTED_FORMAT;
100 status = inSection(3);
101 var err3 = new Error();
102 actual = examineThis(err3, EMPTY_STRING);
103 expect = EXPECTED_FORMAT;
106 status = inSection(4);
107 var err4 = new Error(EMPTY_STRING);
108 actual = examineThis(err4, EMPTY_STRING);
109 expect = EXPECTED_FORMAT;
112 // now generate a run-time error -
113 status = inSection(5);
120 actual = examineThis(err5, '.*');
122 expect = EXPECTED_FORMAT;
127 //-----------------------------------------------------------------------------
129 //-----------------------------------------------------------------------------
134 * Searches err.toString() for err.name + ':' + err.message,
135 * with possible whitespace on each side of the colon sign.
137 * We allow for no colon in case err.message was not provided by the user.
138 * In such a case, SpiderMonkey and Rhino currently set err.message = '',
139 * as allowed for by ECMA 15.11.4.3. This makes |pattern| work in this case.
141 * If this is ever changed to a non-empty string, e.g. 'undefined',
142 * you may have to modify |pattern| to take that into account -
145 function examineThis(err, msg)
147 var pattern = err.name + '\\s*:?\\s*' + msg;
148 return err.toString().search(RegExp(pattern));
154 statusitems[UBound] = status;
155 actualvalues[UBound] = actual;
156 expectedvalues[UBound] = expect;
164 printBugNumber(BUGNUMBER);
165 printStatus (summary);
167 for (var i = 0; i < UBound; i++)
169 reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);