The Tor Browser / file comparison
comparison: js/src/tests/js1_5/Regress/regress-57043.js
js/src/tests/js1_5/Regress/regress-57043.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:13a1f9735cd1 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 /* | |
| 7 * Date: 03 December 2000 | |
| 8 * | |
| 9 * | |
| 10 * SUMMARY: This test arose from Bugzilla bug 57043: | |
| 11 * "Negative integers as object properties: strange behavior!" | |
| 12 * | |
| 13 * We check that object properties may be indexed by signed | |
| 14 * numeric literals, as in assignments like obj[-1] = 'Hello' | |
| 15 * | |
| 16 * NOTE: it should not matter whether we provide the literal with | |
| 17 * quotes around it or not; e.g. these should be equivalent: | |
| 18 * | |
| 19 * obj[-1] = 'Hello' | |
| 20 * obj['-1'] = 'Hello' | |
| 21 */ | |
| 22 //----------------------------------------------------------------------------- | |
| 23 var BUGNUMBER = 57043; | |
| 24 var summary = 'Indexing object properties by signed numerical literals -' | |
| 25 var statprefix = 'Adding a property to test object with an index of '; | |
| 26 var statsuffix = ', testing it now -'; | |
| 27 var propprefix = 'This is property '; | |
| 28 var obj = new Object(); | |
| 29 var status = ''; var actual = ''; var expect = ''; var value = ''; | |
| 30 | |
| 31 | |
| 32 // various indices to try - | |
| 33 var index = | |
| 34 [-1073741825, -1073741824, -1073741823, -5000, -507, -3, -2, -1, -0, 0, 1, 2, 3, 1073741823, 1073741824, 1073741825]; | |
| 35 | |
| 36 | |
| 37 //------------------------------------------------------------------------------------------------- | |
| 38 test(); | |
| 39 //------------------------------------------------------------------------------------------------- | |
| 40 | |
| 41 | |
| 42 function test() | |
| 43 { | |
| 44 enterFunc ('test'); | |
| 45 printBugNumber(BUGNUMBER); | |
| 46 printStatus (summary); | |
| 47 | |
| 48 for (var j in index) {testProperty(index[j]);} | |
| 49 | |
| 50 exitFunc ('test'); | |
| 51 } | |
| 52 | |
| 53 | |
| 54 function testProperty(i) | |
| 55 { | |
| 56 status = getStatus(i); | |
| 57 | |
| 58 // try to assign a property using the given index - | |
| 59 obj[i] = value = (propprefix + i); | |
| 60 | |
| 61 // try to read the property back via the index (as number) - | |
| 62 expect = value; | |
| 63 actual = obj[i]; | |
| 64 reportCompare(expect, actual, status); | |
| 65 | |
| 66 // try to read the property back via the index as string - | |
| 67 expect = value; | |
| 68 actual = obj[String(i)]; | |
| 69 reportCompare(expect, actual, status); | |
| 70 } | |
| 71 | |
| 72 function positive(n) { return 1 / n > 0; } | |
| 73 | |
| 74 function getStatus(i) | |
| 75 { | |
| 76 return statprefix + | |
| 77 (positive(i) ? i : "-" + -i) + | |
| 78 statsuffix; | |
| 79 } |
