JSTests/test262/test/language/arguments-object/S10.1.6_A1_T2.js

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

/*---
info: |
    The activation object is initialised with a property with name arguments
    and attributes {DontDelete}
es5id: 10.1.6_A1_T2
description: Checking funtion which returns property "arguments"
---*/

var ARG_STRING = "value of the argument property";

function f1() {
  this.constructor.prototype.arguments = ARG_STRING;
  return arguments;
}
  
//CHECK#1
if ((new f1(1,2,3,4,5)).length !== 5)
  $ERROR('#1: (new f1(1,2,3,4,5)).length===5, where f1 returns "arguments" that is set to "'+ ARG_STRING + '"');

//CHECK#2  
if ((new f1(1,2,3,4,5))[3] !== 4)
  $ERROR('#2: (new f1(1,2,3,4,5))[3]===4, where f1 returns "arguments" that is set to "'+ ARG_STRING + '"');

//CHECK#3
var x = new f1(1,2,3,4,5); 
if (delete x[3] !== true)
  $ERROR('#3.1: Function parameters have attribute {DontDelete}');
  
if (x[3] === 4)
  $ERROR('#3.2: Function parameters have attribute {DontDelete}');