JSTests/test262/test/built-ins/Object/defineProperty/15.2.3.6-4-498.js

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

/*---
es5id: 15.2.3.6-4-498
description: >
    ES5 Attributes - success to update [[Get]] attribute of accessor
    property ([[Get]] is a Function, [[Set]] is undefined,
    [[Enumerable]] is true, [[Configurable]] is true) to different
    value
---*/

        var obj = {};
        var getFunc = function () {
            return 1001;
        };

        Object.defineProperty(obj, "prop", {
            get: getFunc,
            set: undefined,
            enumerable: true,
            configurable: true
        });

        var result1 = obj.prop === 1001;
        var desc1 = Object.getOwnPropertyDescriptor(obj, "prop");

        Object.defineProperty(obj, "prop", {
            get: undefined
        });

        var result2 = typeof obj.prop === "undefined";
        var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");

assert(result1, 'result1 !== true');
assert(result2, 'result2 !== true');
assert.sameValue(desc1.get, getFunc, 'desc1.get');
assert.sameValue(typeof desc2.get, "undefined", 'typeof desc2.get');