test/suite/ch15/15.3/15.3.4/15.3.4.2/S15.3.4.2_A10.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

// Copyright 2009 the Sputnik authors.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/**
 * The Function.prototype.toString.length property has the attribute ReadOnly
 *
 * @path ch15/15.3/15.3.4/15.3.4.2/S15.3.4.2_A10.js
 * @description Checking if varying the Function.prototype.toString.length property fails
 */

//CHECK#1
if (!(Function.prototype.toString.hasOwnProperty('length'))) {
  $FAIL('#1: the Function.prototype.toString has length property.');
}

var obj = Function.prototype.toString.length;

Function.prototype.toString.length = function(){return "shifted";};

//CHECK#2
if (Function.prototype.toString.length !== obj) {
  $ERROR('#2: the Function.prototype.toString length property has the attributes ReadOnly.');
}