JSTests/mozilla/js1_5/Regress/regress-159334.js

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* The Original Code is JavaScript Engine testing utilities.
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* The Initial Developer of the Original Code is Netscape Communications Corp.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
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* Contributor(s): igor@icesoft.no, pschwartau@netscape.com
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*
*
* Date:    31 Oct 2002
* SUMMARY: Testing script with at least 64K of different string literals
* See http://bugzilla.mozilla.org/show_bug.cgi?id=159334
*
* Testing that script engine can handle scripts with at least 128K of different
* string literals. The following will evaluate, via eval(), a script like this:
*
*     f('0')
*     f('1')
*     ...
*     f('N - 1')
*
* where N is 0x20000
*
*/
//-----------------------------------------------------------------------------
var UBound = 0;
var bug = 159334;
var summary = 'Testing script with at least 128K of different string literals';
var status = '';
var statusitems = [];
var actual = '';
var actualvalues = [];
var expect= '';
var expectedvalues = [];


var N = 0x20000;

// Create big string for eval recursively to avoid N*N behavior
// on string concatenation
var long_eval = buildEval_r(0, N);

// Run it
var test_sum = 0;
function f(str) { test_sum += Number(str); }
eval(long_eval);

status = inSection(1);
actual = (test_sum == N * (N - 1) / 2);
expect = true;
addThis();



//-----------------------------------------------------------------------------
test();
//-----------------------------------------------------------------------------



function buildEval_r(beginLine, endLine)
{
  var count = endLine - beginLine;

  if (count == 0)
    return "";

  if (count == 1)
    return "f('" + beginLine + "')\n";

  var middle = beginLine + (count >>> 1);
  return buildEval_r(beginLine, middle) + buildEval_r(middle, endLine);
}


function addThis()
{
  statusitems[UBound] = status;
  actualvalues[UBound] = actual;
  expectedvalues[UBound] = expect;
  UBound++;
}


function test()
{
  enterFunc('test');
  printBugNumber(bug);
  printStatus(summary);

  for (var i=0; i<UBound; i++)
  {
    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
  }

  exitFunc ('test');
}