JSTests/test262/test/built-ins/Object/keys/15.2.3.14-5-7.js

// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es5id: 15.2.3.14-5-7
description: >
    Object.keys - inherted enumerable data property that is
    over-ridden by non-enumerable own data property is not defined in
    returned array
---*/

var proto = {};
Object.defineProperty(proto, "prop", {
  value: 1003,
  enumerable: true,
  configurable: true
});
var Con = function() {};
Con.prototype = proto;

var obj = new Con();
Object.defineProperty(obj, "prop", {
  value: 1004,
  enumerable: false,
  configurable: true
});

var arr = Object.keys(obj);

for (var p in arr) {
  assert.notSameValue(arr[p], "prop", 'arr[p]');
}