test262/test/suite/ch15/15.2/15.2.3/15.2.3.14/15.2.3.14-5-a-2.js

/// Copyright (c) 2012 Ecma International.  All rights reserved. 
/// Ecma International makes this code available under the terms and conditions set
/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the 
/// "Use Terms").   Any redistribution of this code must retain the above 
/// copyright and this notice and otherwise comply with the Use Terms.
/**
 * @path ch15/15.2/15.2.3/15.2.3.14/15.2.3.14-5-a-2.js
 * @description Object.keys - 'writable' attribute of element of returned array is correct
 */


function testcase() {
        var obj = { prop1: 100 };

        var array = Object.keys(obj);

        try {
            array[0] = "isWritable";

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

            return array[0] === "isWritable" && desc.hasOwnProperty("writable") && desc.writable === true;
        } catch (e) {
            return false;
        }
    }
runTestCase(testcase);