michael@0: // |reftest| random -- bug 524788
michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: var BUGNUMBER = 363258;
michael@0: var summary = 'Timer resolution';
michael@0: var actual = '';
michael@0: var expect = '';
michael@0: 
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: test();
michael@0: //-----------------------------------------------------------------------------
michael@0: 
michael@0: function test()
michael@0: {
michael@0:   enterFunc ('test');
michael@0:   printBugNumber(BUGNUMBER);
michael@0:   printStatus (summary);
michael@0: 
michael@0:   var start = 0;
michael@0:   var stop  = 0;
michael@0:   var i;
michael@0:   var limit = 0;
michael@0:   var incr  = 10;
michael@0:   var resolution = 5;
michael@0:   
michael@0:   while (stop - start == 0)
michael@0:   {
michael@0:     limit += incr;
michael@0:     start = Date.now();
michael@0:     for (i = 0; i < limit; i++) {}
michael@0:     stop = Date.now();
michael@0:   }
michael@0: 
michael@0:   print('limit=' + limit + ', resolution=' + resolution + ', time=' + (stop - start));
michael@0: 
michael@0:   expect = true;
michael@0:   actual = (stop - start <= resolution);
michael@0: 
michael@0:   reportCompare(expect, actual, summary);
michael@0: 
michael@0:   exitFunc ('test');
michael@0: }