The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/tests/js1_5/extensions/regress-178722.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,93 @@
     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 +function f () {return arguments};
    1.47 +var arr5 = f();
    1.48 +arr5.__proto__ = Array.prototype;
    1.49 +
    1.50 +
    1.51 +status = inSection(5);
    1.52 +arr = arr5.sort();
    1.53 +actual = arr instanceof Array && arr.length === 0 && arr === arr5;
    1.54 +expect = true;
    1.55 +addThis();
    1.56 +
    1.57 +
    1.58 +// now do the same thing, with non-default sorting:
    1.59 +function g() {return 1;}
    1.60 +
    1.61 +status = inSection('5a');
    1.62 +arr = arr5.sort(g);
    1.63 +actual = arr instanceof Array && arr.length === 0 && arr === arr5;
    1.64 +expect = true;
    1.65 +addThis();
    1.66 +
    1.67 +
    1.68 +
    1.69 +//-----------------------------------------------------------------------------
    1.70 +test();
    1.71 +//-----------------------------------------------------------------------------
    1.72 +
    1.73 +
    1.74 +
    1.75 +function addThis()
    1.76 +{
    1.77 +  statusitems[UBound] = status;
    1.78 +  actualvalues[UBound] = actual;
    1.79 +  expectedvalues[UBound] = expect;
    1.80 +  UBound++;
    1.81 +}
    1.82 +
    1.83 +
    1.84 +function test()
    1.85 +{
    1.86 +  enterFunc('test');
    1.87 +  printBugNumber(BUGNUMBER);
    1.88 +  printStatus(summary);
    1.89 +
    1.90 +  for (var i=0; i<UBound; i++)
    1.91 +  {
    1.92 +    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
    1.93 +  }
    1.94 +
    1.95 +  exitFunc ('test');
    1.96 +}