1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/tests/js1_5/Exceptions/errstack-001.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,245 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/*
1.10 + *
1.11 + * Date: 28 Feb 2002
1.12 + * SUMMARY: Testing that Error.stack distinguishes between:
1.13 + *
1.14 + * A) top-level calls: myFunc();
1.15 + * B) no-name function calls: function() { myFunc();} ()
1.16 + *
1.17 + * The stack frame for A) should begin with '@'
1.18 + * The stack frame for B) should begin with '()'
1.19 + *
1.20 + * This behavior was coded by Brendan during his fix for bug 127136.
1.21 + * See http://bugzilla.mozilla.org/show_bug.cgi?id=127136#c13
1.22 + *
1.23 + * Note: our function getStackFrames(err) orders the array of stack frames
1.24 + * so that the 0th element will correspond to the highest frame, i.e. will
1.25 + * correspond to a line in top-level code. The 1st element will correspond
1.26 + * to the function that is called first, and so on...
1.27 + *
1.28 + * NOTE: At present Rhino does not have an Error.stack property. It is an
1.29 + * ECMA extension, see http://bugzilla.mozilla.org/show_bug.cgi?id=123177
1.30 + */
1.31 +//-----------------------------------------------------------------------------
1.32 +var UBound = 0;
1.33 +var BUGNUMBER = '(none)';
1.34 +var summary = 'Testing Error.stack';
1.35 +var status = '';
1.36 +var statusitems = [];
1.37 +var actual = '';
1.38 +var actualvalues = [];
1.39 +var expect= '';
1.40 +var expectedvalues = [];
1.41 +var myErr = '';
1.42 +var stackFrames = '';
1.43 +
1.44 +
1.45 +function A(x,y)
1.46 +{
1.47 + return B(x+1,y+1);
1.48 +}
1.49 +
1.50 +function B(x,z)
1.51 +{
1.52 + return C(x+1,z+1);
1.53 +}
1.54 +
1.55 +function C(x,y)
1.56 +{
1.57 + return D(x+1,y+1);
1.58 +}
1.59 +
1.60 +function D(x,z)
1.61 +{
1.62 + try
1.63 + {
1.64 + throw new Error('meep!');
1.65 + }
1.66 + catch (e)
1.67 + {
1.68 + return e;
1.69 + }
1.70 +}
1.71 +
1.72 +
1.73 +myErr = A(44,13);
1.74 +stackFrames = getStackFrames(myErr);
1.75 +status = inSection(1);
1.76 +actual = stackFrames[0].substring(0,1);
1.77 +expect = '@';
1.78 +addThis();
1.79 +
1.80 +status = inSection(2);
1.81 +actual = stackFrames[1].substring(0,2);
1.82 +expect = 'A@';
1.83 +addThis();
1.84 +
1.85 +status = inSection(3);
1.86 +actual = stackFrames[2].substring(0,2);
1.87 +expect = 'B@';
1.88 +addThis();
1.89 +
1.90 +status = inSection(4);
1.91 +actual = stackFrames[3].substring(0,2);
1.92 +expect = 'C@';
1.93 +addThis();
1.94 +
1.95 +status = inSection(5);
1.96 +actual = stackFrames[4].substring(0,2);
1.97 +expect = 'D@';
1.98 +addThis();
1.99 +
1.100 +
1.101 +
1.102 +myErr = A('44:foo','13:bar');
1.103 +stackFrames = getStackFrames(myErr);
1.104 +status = inSection(6);
1.105 +actual = stackFrames[0].substring(0,1);
1.106 +expect = '@';
1.107 +addThis();
1.108 +
1.109 +status = inSection(7);
1.110 +actual = stackFrames[1].substring(0,2);
1.111 +expect = 'A@';
1.112 +addThis();
1.113 +
1.114 +status = inSection(8);
1.115 +actual = stackFrames[2].substring(0,2);
1.116 +expect = 'B@';
1.117 +addThis();
1.118 +
1.119 +status = inSection(9);
1.120 +actual = stackFrames[3].substring(0,2);
1.121 +expect = 'C@';
1.122 +addThis();
1.123 +
1.124 +status = inSection(10);
1.125 +actual = stackFrames[4].substring(0,2);
1.126 +expect = 'D@';;
1.127 +addThis();
1.128 +
1.129 +
1.130 +
1.131 +/*
1.132 + * Make the first frame occur in a function with an empty name -
1.133 + */
1.134 +myErr = function() { return A(44,13); } ();
1.135 +stackFrames = getStackFrames(myErr);
1.136 +status = inSection(11);
1.137 +actual = stackFrames[0].substring(0,1);
1.138 +expect = '@';
1.139 +addThis();
1.140 +
1.141 +status = inSection(12);
1.142 +actual = stackFrames[1].substring(0,7);
1.143 +expect = 'myErr<@';
1.144 +addThis();
1.145 +
1.146 +status = inSection(13);
1.147 +actual = stackFrames[2].substring(0,2);
1.148 +expect = 'A@';
1.149 +addThis();
1.150 +
1.151 +// etc. for the rest of the frames as above
1.152 +
1.153 +
1.154 +
1.155 +/*
1.156 + * Make the first frame occur in a function with name 'anonymous' -
1.157 + */
1.158 +var f = Function('return A(44,13);');
1.159 +myErr = f();
1.160 +stackFrames = getStackFrames(myErr);
1.161 +status = inSection(14);
1.162 +actual = stackFrames[0].substring(0,1);
1.163 +expect = '@';
1.164 +addThis();
1.165 +
1.166 +status = inSection(15);
1.167 +actual = stackFrames[1].substring(0,10);
1.168 +expect = 'anonymous@';
1.169 +addThis();
1.170 +
1.171 +status = inSection(16);
1.172 +actual = stackFrames[2].substring(0,2);
1.173 +expect = 'A@';
1.174 +addThis();
1.175 +
1.176 +// etc. for the rest of the frames as above
1.177 +
1.178 +
1.179 +
1.180 +/*
1.181 + * Make a user-defined error via the Error() function -
1.182 + */
1.183 +var message = 'Hi there!'; var fileName = 'file name'; var lineNumber = 0;
1.184 +myErr = Error(message, fileName, lineNumber);
1.185 +stackFrames = getStackFrames(myErr);
1.186 +status = inSection(17);
1.187 +actual = stackFrames[0].substring(0,1);
1.188 +expect = '@';
1.189 +addThis();
1.190 +
1.191 +
1.192 +/*
1.193 + * Now use the |new| keyword. Re-use the same params -
1.194 + */
1.195 +myErr = new Error(message, fileName, lineNumber);
1.196 +stackFrames = getStackFrames(myErr);
1.197 +status = inSection(18);
1.198 +actual = stackFrames[0].substring(0,1);
1.199 +expect = '@';
1.200 +addThis();
1.201 +
1.202 +
1.203 +
1.204 +
1.205 +//-----------------------------------------------------------------------------
1.206 +test();
1.207 +//-----------------------------------------------------------------------------
1.208 +
1.209 +
1.210 +
1.211 +/*
1.212 + * Split the string |err.stack| along its '\n' delimiter.
1.213 + * As of 2002-02-28 |err.stack| ends with the delimiter, so
1.214 + * the resulting array has an empty string as its last element.
1.215 + *
1.216 + * Pop that useless element off before doing anything.
1.217 + * Then reverse the array, for convenience of indexing -
1.218 + */
1.219 +function getStackFrames(err)
1.220 +{
1.221 + var arr = err.stack.split('\n');
1.222 + arr.pop();
1.223 + return arr.reverse();
1.224 +}
1.225 +
1.226 +
1.227 +function addThis()
1.228 +{
1.229 + statusitems[UBound] = status;
1.230 + actualvalues[UBound] = actual;
1.231 + expectedvalues[UBound] = expect;
1.232 + UBound++;
1.233 +}
1.234 +
1.235 +
1.236 +function test()
1.237 +{
1.238 + enterFunc('test');
1.239 + printBugNumber(BUGNUMBER);
1.240 + printStatus(summary);
1.241 +
1.242 + for (var i=0; i<UBound; i++)
1.243 + {
1.244 + reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
1.245 + }
1.246 +
1.247 + exitFunc ('test');
1.248 +}
