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

   1 /* ***** BEGIN LICENSE BLOCK *****
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   4 * The contents of this file are subject to the Netscape Public License
   5 * Version 1.1 (the "License"); you may not use this file except in
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  12 * License.
  13 *
  14 * The Original Code is JavaScript Engine testing utilities.
  15 *
  16 * The Initial Developer of the Original Code is Netscape Communications Corp.
  17 * Portions created by the Initial Developer are Copyright (C) 2002
  18 * the Initial Developer. All Rights Reserved.
  19 *
  20 * Contributor(s): igor@icesoft.no, pschwartau@netscape.com
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  22 * Alternatively, the contents of this file may be used under the terms of
  23 * either the GNU General Public License Version 2 or later (the "GPL"), or
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  35 *
  36 *
  37 * Date:    31 Oct 2002
  38 * SUMMARY: Testing script with at least 64K of different string literals
  39 * See http://bugzilla.mozilla.org/show_bug.cgi?id=159334
  40 *
  41 * Testing that script engine can handle scripts with at least 128K of different
  42 * string literals. The following will evaluate, via eval(), a script like this:
  43 *
  44 *     f('0')
  45 *     f('1')
  46 *     ...
  47 *     f('N - 1')
  48 *
  49 * where N is 0x20000
  50 *
  51 */
  52 //-----------------------------------------------------------------------------
  53 var UBound = 0;
  54 var bug = 159334;
  55 var summary = 'Testing script with at least 128K of different string literals';
  56 var status = '';
  57 var statusitems = [];
  58 var actual = '';
  59 var actualvalues = [];
  60 var expect= '';
  61 var expectedvalues = [];
  62
  63
  64 var N = 0x20000;
  65
  66 // Create big string for eval recursively to avoid N*N behavior
  67 // on string concatenation
  68 var long_eval = buildEval_r(0, N);
  69
  70 // Run it
  71 var test_sum = 0;
  72 function f(str) { test_sum += Number(str); }
  73 eval(long_eval);
  74
  75 status = inSection(1);
  76 actual = (test_sum == N * (N - 1) / 2);
  77 expect = true;
  78 addThis();
  79
  80
  81
  82 //-----------------------------------------------------------------------------
  83 test();
  84 //-----------------------------------------------------------------------------
  85
  86
  87
  88 function buildEval_r(beginLine, endLine)
  89 {
  90   var count = endLine - beginLine;
  91
  92   if (count == 0)
  93     return "";
  94
  95   if (count == 1)
  96     return "f('" + beginLine + "')\n";
  97
  98   var middle = beginLine + (count >>> 1);
  99   return buildEval_r(beginLine, middle) + buildEval_r(middle, endLine);
 100 }
 101
 102
 103 function addThis()
 104 {
 105   statusitems[UBound] = status;
 106   actualvalues[UBound] = actual;
 107   expectedvalues[UBound] = expect;
 108   UBound++;
 109 }
 110
 111
 112 function test()
 113 {
 114   enterFunc('test');
 115   printBugNumber(bug);
 116   printStatus(summary);
 117
 118   for (var i=0; i<UBound; i++)
 119   {
 120     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
 121   }
 122
 123   exitFunc ('test');
 124 }