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 /* -*- 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 = 211590;

 var summary = 'Math.random should be random';

 var actual = '';

 var expect = 'between 47.5% and 52.5%';

 printBugNumber(BUGNUMBER);

 printStatus (summary);

 var r = Math.random;

 var c = Math.pow( 2, 53 );

 var n = 10000;

 var odd1 = 0;

 var odd2 = 0;

 for ( var i = 0; i < n; ++i )

 {

   var v= r() * c;

   if ( v & 1 )

     ++odd1;

   if ( v - c + c & 1 )

     ++odd2;

 }

 odd1 *= 100 / n;

 odd2 *= 100 / n;

 if (odd1 >= 47.5 && odd1 <= 52.5)

 {

   actual = expect;

 }

 else

 {

   actual = ' is ' + odd1.toFixed(3);

 }

 reportCompare(expect, actual, summary);

 if (odd2 >= 47.5 && odd2 <= 52.5)

 {

   actual = expect;

 }

 else

 {

   actual = ' is ' + odd2.toFixed(3);

 }

 reportCompare(expect, actual, summary);