JSTests/test262/test/built-ins/Function/length/S15.3.5.1_A4_T3.js

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

/*---
info: the length property has the attributes { DontEnum }
es5id: 15.3.5.1_A4_T3
description: >
    Checking if enumerating the length property of
    Function("arg1,arg2,arg3","arg1,arg2","arg3", null) fails
---*/

var f = new Function("arg1,arg2,arg3", "arg1,arg2", "arg3", null);

//CHECK#1
if (!(f.hasOwnProperty('length'))) {
  $ERROR('#1: the function has length property.');
}

for (var key in f) {
  if (key == "length") {
    var lengthenumed = true;
  }
}

//CHECK#2
if (lengthenumed) {
  $ERROR('#2: the length property has the attributes { DontEnum }');
}