regress-404755.js - mozsearch

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// |reftest| random -- unreliable - based on GC timing

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

//-----------------------------------------------------------------------------

var BUGNUMBER = 404755;

var summary = 'Do not consume heap when deleting property';

var actual = 'No leak';

var expect = 'No leak';

//-----------------------------------------------------------------------------

test();

//-----------------------------------------------------------------------------

function test()

  printBugNumber(BUGNUMBER);

  printStatus (summary);

  var n = 1 << 22;

  var o = {};

  do {

    o[0] = 0;

    delete o[0];

  } while (--n != 0);

  gc();

  var time = Date.now();

  gc();

  time = Date.now() - time;

  o = {};

  o[0] = 0;

  delete o[0];

  gc();

  var time2 = Date.now();

  gc();

  time2 = Date.now() - time2;

  print(time+" "+time2);

  if (time > 2 && time > time2 * 5)

    throw "A possible leak is observed";

  reportCompare(expect, actual, summary);