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');

reportCompare(0, 0);