File: 15.2.3.14-5-a-4.js

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// 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-a-4
description: >
    Object.keys - Verify that 'configurable' attribute of element of
    returned array is correct
---*/

var obj = {
  prop1: 100
};

var array = Object.keys(obj);
var desc = Object.getOwnPropertyDescriptor(array, "0");

delete array[0];

assert.sameValue(typeof array[0], "undefined", 'typeof array[0]');
assert(desc.hasOwnProperty("configurable"), 'desc.hasOwnProperty("configurable") !== true');
assert.sameValue(desc.configurable, true, 'desc.configurable');