js/src/tests/ecma_3/Array/regress-390598.js


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40

/* -*- 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/. */


//-----------------------------------------------------------------------------
var BUGNUMBER = 390598;
var summary = 'Override inherited length of Array-like object';
var actual = '';
var expect = '';


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

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

  function F() {} 
  F.prototype = []; 

  // override inherited length from the prototype.
  expect = 10;
  var x = new F(); 

  print('x = new F(); x instanceof Array: ' + (x instanceof Array));

  x.length = expect;
  actual = x.length;

  reportCompare(expect, actual, summary);

  exitFunc ('test');
}