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

Thu, 15 Jan 2015 15:59:08 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 15 Jan 2015 15:59:08 +0100
branch
TOR_BUG_9701
changeset 10
ac0c01689b40
permissions
-rw-r--r--

Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0 1 // |reftest| skip -- unreliable - based on GC timing
michael@0 2 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0 3 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 4 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 6
michael@0 7 //-----------------------------------------------------------------------------
michael@0 8 var BUGNUMBER = 404755;
michael@0 9 var summary = 'Do not consume heap when deleting property';
michael@0 10 var actual = 'No leak';
michael@0 11 var expect = 'No leak';
michael@0 12
michael@0 13
michael@0 14 //-----------------------------------------------------------------------------
michael@0 15 test();
michael@0 16 //-----------------------------------------------------------------------------
michael@0 17
michael@0 18 function test()
michael@0 19 {
michael@0 20 enterFunc ('test');
michael@0 21 printBugNumber(BUGNUMBER);
michael@0 22 printStatus (summary);
michael@0 23
michael@0 24 var n = 1 << 22;
michael@0 25 var o = {};
michael@0 26 do {
michael@0 27 o[0] = 0;
michael@0 28 delete o[0];
michael@0 29 } while (--n != 0);
michael@0 30
michael@0 31 gc();
michael@0 32 var time = Date.now();
michael@0 33 gc();
michael@0 34 time = Date.now() - time;
michael@0 35
michael@0 36 o = {};
michael@0 37 o[0] = 0;
michael@0 38 delete o[0];
michael@0 39 gc();
michael@0 40 var time2 = Date.now();
michael@0 41 gc();
michael@0 42 time2 = Date.now() - time2;
michael@0 43 print(time+" "+time2);
michael@0 44 if (time > 2 && time > time2 * 5)
michael@0 45 throw "A possible leak is observed";
michael@0 46
michael@0 47 reportCompare(expect, actual, summary);
michael@0 48
michael@0 49 exitFunc ('test');
michael@0 50 }

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