test262/test/built-ins/Number/S15.7.2.1_A4.js

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

/*---
info: |
    The [[Class]] property of the newly constructed object
    is set to "Number"
es5id: 15.7.2.1_A4
description: For testing toString function is used
---*/

delete Number.prototype.toString;

var obj = new Number();

//CHECK#1
if (obj.toString() !== "[object Number]") {
  $ERROR('#1: The [[Class]] property of the newly constructed object is set to "Number"');
}