js/src/tests/js1_5/Regress/regress-404755.js

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 // |reftest| skip -- unreliable - based on GC timing
     2 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     3 /* This Source Code Form is subject to the terms of the Mozilla Public
     4  * License, v. 2.0. If a copy of the MPL was not distributed with this
     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     7 //-----------------------------------------------------------------------------
     8 var BUGNUMBER = 404755;
     9 var summary = 'Do not consume heap when deleting property';
    10 var actual = 'No leak';
    11 var expect = 'No leak';
    14 //-----------------------------------------------------------------------------
    15 test();
    16 //-----------------------------------------------------------------------------
    18 function test()
    19 {
    20   enterFunc ('test');
    21   printBugNumber(BUGNUMBER);
    22   printStatus (summary);
    24   var n = 1 << 22;
    25   var o = {};
    26   do {
    27     o[0] = 0;
    28     delete o[0]; 
    29   } while (--n != 0);
    31   gc();
    32   var time = Date.now();
    33   gc();
    34   time = Date.now() - time;
    36   o = {};
    37   o[0] = 0;
    38   delete o[0]; 
    39   gc();
    40   var time2 = Date.now();
    41   gc();
    42   time2 = Date.now() - time2;
    43   print(time+" "+time2);
    44   if (time > 2 && time > time2 * 5)
    45     throw "A possible leak is observed";
    47   reportCompare(expect, actual, summary);
    49   exitFunc ('test');
    50 }

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