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280 lines
6.7 KiB
JavaScript
280 lines
6.7 KiB
JavaScript
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is JavaScript Engine testing utilities.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corp.
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* Portions created by the Initial Developer are Copyright (C) 2002
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* brendan@mozilla.org, pschwartau@netscape.com
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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*
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* Date: 28 Feb 2002
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* SUMMARY: Testing that Error.stack distinguishes between:
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*
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* A) top-level calls: myFunc();
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* B) no-name function calls: function() { myFunc();} ()
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*
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* The stack frame for A) should begin with '@'
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* The stack frame for B) should begin with '()'
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*
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* This behavior was coded by Brendan during his fix for bug 127136.
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* See http://bugzilla.mozilla.org/show_bug.cgi?id=127136#c13
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*
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* Note: our function getStackFrames(err) orders the array of stack frames
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* so that the 0th element will correspond to the highest frame, i.e. will
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* correspond to a line in top-level code. The 1st element will correspond
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* to the function that is called first, and so on...
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*
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* NOTE: At present Rhino does not have an Error.stack property. It is an
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* ECMA extension, see http://bugzilla.mozilla.org/show_bug.cgi?id=123177
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*/
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//-----------------------------------------------------------------------------
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var gTestfile = 'errstack-001.js';
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var UBound = 0;
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var BUGNUMBER = '(none)';
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var summary = 'Testing Error.stack';
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var status = '';
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var statusitems = [];
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var actual = '';
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var actualvalues = [];
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var expect= '';
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var expectedvalues = [];
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var myErr = '';
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var stackFrames = '';
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function A(x,y)
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{
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return B(x+1,y+1);
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}
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function B(x,z)
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{
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return C(x+1,z+1);
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}
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function C(x,y)
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{
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return D(x+1,y+1);
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}
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function D(x,z)
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{
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try
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{
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throw new Error('meep!');
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}
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catch (e)
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{
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return e;
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}
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}
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myErr = A(44,13);
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stackFrames = getStackFrames(myErr);
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status = inSection(1);
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actual = stackFrames[0].substring(0,1);
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expect = '@';
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addThis();
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status = inSection(2);
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actual = stackFrames[1].substring(0,9);
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expect = 'A(44,13)@';
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addThis();
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status = inSection(3);
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actual = stackFrames[2].substring(0,9);
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expect = 'B(45,14)@';
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addThis();
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status = inSection(4);
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actual = stackFrames[3].substring(0,9);
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expect = 'C(46,15)@';
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addThis();
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status = inSection(5);
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actual = stackFrames[4].substring(0,9);
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expect = 'D(47,16)@';
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addThis();
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myErr = A('44:foo','13:bar');
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stackFrames = getStackFrames(myErr);
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status = inSection(6);
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actual = stackFrames[0].substring(0,1);
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expect = '@';
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addThis();
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status = inSection(7);
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actual = stackFrames[1].substring(0,21);
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expect = 'A("44:foo","13:bar")@';
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addThis();
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status = inSection(8);
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actual = stackFrames[2].substring(0,23);
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expect = 'B("44:foo1","13:bar1")@';
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addThis();
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status = inSection(9);
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actual = stackFrames[3].substring(0,25);
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expect = 'C("44:foo11","13:bar11")@';
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addThis();
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status = inSection(10);
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actual = stackFrames[4].substring(0,27);
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expect = 'D("44:foo111","13:bar111")@';;
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addThis();
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/*
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* Make the first frame occur in a function with an empty name -
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*/
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myErr = function() { return A(44,13); } ();
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stackFrames = getStackFrames(myErr);
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status = inSection(11);
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actual = stackFrames[0].substring(0,1);
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expect = '@';
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addThis();
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status = inSection(12);
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actual = stackFrames[1].substring(0,3);
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expect = '()@';
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addThis();
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status = inSection(13);
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actual = stackFrames[2].substring(0,9);
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expect = 'A(44,13)@';
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addThis();
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// etc. for the rest of the frames as above
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/*
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* Make the first frame occur in a function with name 'anonymous' -
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*/
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var f = Function('return A(44,13);');
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myErr = f();
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stackFrames = getStackFrames(myErr);
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status = inSection(14);
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actual = stackFrames[0].substring(0,1);
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expect = '@';
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addThis();
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status = inSection(15);
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actual = stackFrames[1].substring(0,12);
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expect = 'anonymous()@';
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addThis();
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status = inSection(16);
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actual = stackFrames[2].substring(0,9);
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expect = 'A(44,13)@';
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addThis();
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// etc. for the rest of the frames as above
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/*
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* Make a user-defined error via the Error() function -
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*/
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var message = 'Hi there!'; var fileName = 'file name'; var lineNumber = 0;
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myErr = Error(message, fileName, lineNumber);
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stackFrames = getStackFrames(myErr);
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status = inSection(17);
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actual = stackFrames[0].substring(0,1);
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expect = '@';
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addThis();
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/*
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* Now use the |new| keyword. Re-use the same params -
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*/
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myErr = new Error(message, fileName, lineNumber);
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stackFrames = getStackFrames(myErr);
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status = inSection(18);
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actual = stackFrames[0].substring(0,1);
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expect = '@';
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addThis();
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//-----------------------------------------------------------------------------
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test();
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//-----------------------------------------------------------------------------
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/*
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* Split the string |err.stack| along its '\n' delimiter.
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* As of 2002-02-28 |err.stack| ends with the delimiter, so
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* the resulting array has an empty string as its last element.
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*
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* Pop that useless element off before doing anything.
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* Then reverse the array, for convenience of indexing -
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*/
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function getStackFrames(err)
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{
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var arr = err.stack.split('\n');
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arr.pop();
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return arr.reverse();
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}
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function addThis()
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{
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statusitems[UBound] = status;
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actualvalues[UBound] = actual;
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expectedvalues[UBound] = expect;
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UBound++;
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}
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function test()
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{
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enterFunc('test');
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printBugNumber(BUGNUMBER);
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printStatus(summary);
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for (var i=0; i<UBound; i++)
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{
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reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
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}
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exitFunc ('test');
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}
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