test/built-ins/Object/defineProperty/15.2.3.6-4-596.js


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// 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.

/*---
es5id: 15.2.3.6-4-596
description: >
    ES5 Attributes - Fail to update value of property into of
    [[Proptotype]] internal property (Function.prototype.bind)
includes: [propertyHelper.js]
---*/

var foo = function () { };
var data = "data";
try {
    Object.defineProperty(Function.prototype, "prop", {
        get: function () {
            return data;
        },
        enumerable: false,
        configurable: true
    });

    var obj = foo.bind({});

    assert(!obj.hasOwnProperty("prop"));
    verifyNotWritable(obj, "prop", "nocheck");
    assert.sameValue(obj.prop, "data");;
} finally {
    delete Function.prototype.prop;
}