JSTests/test262/test/language/statements/function/13.2-17-1.js

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

/*---
es5id: 13.2-17-1
description: >
    Function Object has 'constructor' as its own property, it is not
    enumerable and does not invoke the setter defined on
    Function.prototype.constructor (Step 17)
---*/

        var desc = Object.getOwnPropertyDescriptor(Object.prototype, "constructor");

            var getFunc = function () {
                return 100;
            };

            var data = "data";
            var setFunc = function (value) {
                data = value;
            };

            Object.defineProperty(Object.prototype, "constructor", {
                get: getFunc,
                set: setFunc,
                configurable: true
            });

            var fun = function () {};

            var verifyValue = false;
            verifyValue = typeof fun.prototype.constructor === "function";

            var verifyEnumerable = false;
            for (var p in fun.prototype) {
                if (p === "constructor" && fun.prototype.hasOwnProperty("constructor")) {
                    verifyEnumerable = true;
                }
            }

            var verifyWritable = false;
            fun.prototype.constructor = 12;
            verifyWritable = (fun.prototype.constructor === 12);

            var verifyConfigurable = false;
            delete fun.prototype.constructor;
            verifyConfigurable = fun.hasOwnProperty("constructor");

assert(verifyValue, 'verifyValue !== true');
assert(verifyWritable, 'verifyWritable !== true');
assert.sameValue(verifyEnumerable, false, 'verifyEnumerable');
assert.sameValue(verifyConfigurable, false, 'verifyConfigurable');
assert.sameValue(data, "data", 'data');