regress-159334.js - mozsearch

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/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */

/*

 * 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 64K of different

 * string literals. The following will evaluate, via eval(), a script like this:

 *     f('0')

 *     f('1')

 *     ...

 *     f('N - 1')

 * where N is 0xFFFE

*/

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

var UBound = 0;

var BUGNUMBER = 159334;

var summary = 'Testing script with at least 64K of different string literals';

var status = '';

var statusitems = [];

var actual = '';

var actualvalues = [];

var expect= '';

var expectedvalues = [];

var N = 0xFFFE;

// 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()

  printBugNumber(BUGNUMBER);

  printStatus(summary);

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

    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);