JSTests/mozilla/ecma_3/Exceptions/15.11.7.6-003.js

/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Netscape Public License
* Version 1.1 (the "License"); you may not use this file except in
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* Software distributed under the License is distributed on an "AS IS" basis,
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* License.
*
* The Original Code is JavaScript Engine testing utilities.
*
* The Initial Developer of the Original Code is Netscape Communications Corp.
* Portions created by the Initial Developer are Copyright (C) 2003
* the Initial Developer. All Rights Reserved.
*
* Contributor(s): igor@fastmail.fm, pschwartau@netscape.com
*
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* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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*
*
* Date:    14 April 2003
* SUMMARY: Prototype of predefined error objects should be ReadOnly
* See http://bugzilla.mozilla.org/show_bug.cgi?id=201989
*
*/
//-----------------------------------------------------------------------------
var UBound = 0;
var bug = 201989;
var summary = 'Prototype of predefined error objects should be ReadOnly';
var status = '';
var statusitems = [];
var actual = '';
var actualvalues = [];
var expect= '';
var expectedvalues = [];


/*
 * Tests that |F.prototype| is ReadOnly
 */
function testReadOnly(F)
{
  var orig = F.prototype;
  F.prototype = new Object();
  return F.prototype === orig;
}


var list = [
    "Error",
    "ConversionError",
    "EvalError",
    "RangeError",
    "ReferenceError",
    "SyntaxError",
    "TypeError",
    "URIError"
];


for (i in list)
{
  var F = this[list[i]];

  // Test for |F|; e.g. Rhino defines |ConversionError| while SM does not.
  if (F)
  {
    status = 'Testing ReadOnly attribute of |' + list[i] + '.prototype|';
    actual = testReadOnly(F);
    expect = true;
    addThis();
  }
}



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



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');
}