The Tor Browser / file comparison
comparison: js/src/tests/js1_5/extensions/regress-178722.js
js/src/tests/js1_5/extensions/regress-178722.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:05d0c4ca8e81 |
|---|---|
| 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 * | |
| 8 * Date: 06 November 2002 | |
| 9 * SUMMARY: arr.sort() should not output |undefined| when |arr| is empty | |
| 10 * See http://bugzilla.mozilla.org/show_bug.cgi?id=178722 | |
| 11 * | |
| 12 * ECMA-262 Ed.3: 15.4.4.11 Array.prototype.sort (comparefn) | |
| 13 * | |
| 14 * 1. Call the [[Get]] method of this object with argument "length". | |
| 15 * 2. Call ToUint32(Result(1)). | |
| 16 * 3. Perform an implementation-dependent sequence of calls to the [[Get]], | |
| 17 * [[Put]], and [[Delete]] methods of this object, etc. etc. | |
| 18 * 4. Return this object. | |
| 19 * | |
| 20 * | |
| 21 * Note that sort() is done in-place on |arr|. In other words, sort() is a | |
| 22 * "destructive" method rather than a "functional" method. The return value | |
| 23 * of |arr.sort()| and |arr| are the same object. | |
| 24 * | |
| 25 * If |arr| is an empty array, the return value of |arr.sort()| should be | |
| 26 * an empty array, not the value |undefined| as was occurring in bug 178722. | |
| 27 * | |
| 28 */ | |
| 29 //----------------------------------------------------------------------------- | |
| 30 var UBound = 0; | |
| 31 var BUGNUMBER = 178722; | |
| 32 var summary = 'arr.sort() should not output |undefined| when |arr| is empty'; | |
| 33 var status = ''; | |
| 34 var statusitems = []; | |
| 35 var actual = ''; | |
| 36 var actualvalues = []; | |
| 37 var expect= ''; | |
| 38 var expectedvalues = []; | |
| 39 var arr; | |
| 40 | |
| 41 | |
| 42 // create empty array or pseudo-array objects in various ways | |
| 43 function f () {return arguments}; | |
| 44 var arr5 = f(); | |
| 45 arr5.__proto__ = Array.prototype; | |
| 46 | |
| 47 | |
| 48 status = inSection(5); | |
| 49 arr = arr5.sort(); | |
| 50 actual = arr instanceof Array && arr.length === 0 && arr === arr5; | |
| 51 expect = true; | |
| 52 addThis(); | |
| 53 | |
| 54 | |
| 55 // now do the same thing, with non-default sorting: | |
| 56 function g() {return 1;} | |
| 57 | |
| 58 status = inSection('5a'); | |
| 59 arr = arr5.sort(g); | |
| 60 actual = arr instanceof Array && arr.length === 0 && arr === arr5; | |
| 61 expect = true; | |
| 62 addThis(); | |
| 63 | |
| 64 | |
| 65 | |
| 66 //----------------------------------------------------------------------------- | |
| 67 test(); | |
| 68 //----------------------------------------------------------------------------- | |
| 69 | |
| 70 | |
| 71 | |
| 72 function addThis() | |
| 73 { | |
| 74 statusitems[UBound] = status; | |
| 75 actualvalues[UBound] = actual; | |
| 76 expectedvalues[UBound] = expect; | |
| 77 UBound++; | |
| 78 } | |
| 79 | |
| 80 | |
| 81 function test() | |
| 82 { | |
| 83 enterFunc('test'); | |
| 84 printBugNumber(BUGNUMBER); | |
| 85 printStatus(summary); | |
| 86 | |
| 87 for (var i=0; i<UBound; i++) | |
| 88 { | |
| 89 reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]); | |
| 90 } | |
| 91 | |
| 92 exitFunc ('test'); | |
| 93 } |
