1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/tests/js1_5/Array/regress-178722.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,130 @@
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: 06 November 2002
1.12 + * SUMMARY: arr.sort() should not output |undefined| when |arr| is empty
1.13 + * See http://bugzilla.mozilla.org/show_bug.cgi?id=178722
1.14 + *
1.15 + * ECMA-262 Ed.3: 15.4.4.11 Array.prototype.sort (comparefn)
1.16 + *
1.17 + * 1. Call the [[Get]] method of this object with argument "length".
1.18 + * 2. Call ToUint32(Result(1)).
1.19 + * 3. Perform an implementation-dependent sequence of calls to the [[Get]],
1.20 + * [[Put]], and [[Delete]] methods of this object, etc. etc.
1.21 + * 4. Return this object.
1.22 + *
1.23 + *
1.24 + * Note that sort() is done in-place on |arr|. In other words, sort() is a
1.25 + * "destructive" method rather than a "functional" method. The return value
1.26 + * of |arr.sort()| and |arr| are the same object.
1.27 + *
1.28 + * If |arr| is an empty array, the return value of |arr.sort()| should be
1.29 + * an empty array, not the value |undefined| as was occurring in bug 178722.
1.30 + *
1.31 + */
1.32 +//-----------------------------------------------------------------------------
1.33 +var UBound = 0;
1.34 +var BUGNUMBER = 178722;
1.35 +var summary = 'arr.sort() should not output |undefined| when |arr| is empty';
1.36 +var status = '';
1.37 +var statusitems = [];
1.38 +var actual = '';
1.39 +var actualvalues = [];
1.40 +var expect= '';
1.41 +var expectedvalues = [];
1.42 +var arr;
1.43 +
1.44 +
1.45 +// create empty array or pseudo-array objects in various ways
1.46 +var arr1 = Array();
1.47 +var arr2 = new Array();
1.48 +var arr3 = [];
1.49 +var arr4 = [1];
1.50 +arr4.pop();
1.51 +
1.52 +
1.53 +status = inSection(1);
1.54 +arr = arr1.sort();
1.55 +actual = arr instanceof Array && arr.length === 0 && arr === arr1;
1.56 +expect = true;
1.57 +addThis();
1.58 +
1.59 +status = inSection(2);
1.60 +arr = arr2.sort();
1.61 +actual = arr instanceof Array && arr.length === 0 && arr === arr2;
1.62 +expect = true;
1.63 +addThis();
1.64 +
1.65 +status = inSection(3);
1.66 +arr = arr3.sort();
1.67 +actual = arr instanceof Array && arr.length === 0 && arr === arr3;
1.68 +expect = true;
1.69 +addThis();
1.70 +
1.71 +status = inSection(4);
1.72 +arr = arr4.sort();
1.73 +actual = arr instanceof Array && arr.length === 0 && arr === arr4;
1.74 +expect = true;
1.75 +addThis();
1.76 +
1.77 +// now do the same thing, with non-default sorting:
1.78 +function g() {return 1;}
1.79 +
1.80 +status = inSection('1a');
1.81 +arr = arr1.sort(g);
1.82 +actual = arr instanceof Array && arr.length === 0 && arr === arr1;
1.83 +expect = true;
1.84 +addThis();
1.85 +
1.86 +status = inSection('2a');
1.87 +arr = arr2.sort(g);
1.88 +actual = arr instanceof Array && arr.length === 0 && arr === arr2;
1.89 +expect = true;
1.90 +addThis();
1.91 +
1.92 +status = inSection('3a');
1.93 +arr = arr3.sort(g);
1.94 +actual = arr instanceof Array && arr.length === 0 && arr === arr3;
1.95 +expect = true;
1.96 +addThis();
1.97 +
1.98 +status = inSection('4a');
1.99 +arr = arr4.sort(g);
1.100 +actual = arr instanceof Array && arr.length === 0 && arr === arr4;
1.101 +expect = true;
1.102 +addThis();
1.103 +
1.104 +
1.105 +
1.106 +//-----------------------------------------------------------------------------
1.107 +test();
1.108 +//-----------------------------------------------------------------------------
1.109 +
1.110 +
1.111 +
1.112 +function addThis()
1.113 +{
1.114 + statusitems[UBound] = status;
1.115 + actualvalues[UBound] = actual;
1.116 + expectedvalues[UBound] = expect;
1.117 + UBound++;
1.118 +}
1.119 +
1.120 +
1.121 +function test()
1.122 +{
1.123 + enterFunc('test');
1.124 + printBugNumber(BUGNUMBER);
1.125 + printStatus(summary);
1.126 +
1.127 + for (var i=0; i<UBound; i++)
1.128 + {
1.129 + reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
1.130 + }
1.131 +
1.132 + exitFunc ('test');
1.133 +}
