JSTests/test262/test/built-ins/Object/defineProperties/15.2.3.7-6-a-286.js

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

/*---
es5id: 15.2.3.7-6-a-286
description: >
    Object.defineProperties - 'O' is an Arguments object, 'P' is own
    accessor property of 'O' which is also defined in [[ParameterMap]]
    of 'O', test TypeError is thrown when updating the [[Get]]
    attribute value of 'P' which is defined as non-configurable (10.6
    [[DefineOwnProperty]] step 4)
---*/

        var arg;

        (function fun(a, b, c) {
            arg = arguments;
        } (0, 1, 2));

        function get_func1() {
            return 0;
        }

        Object.defineProperty(arg, "0", {
            get: get_func1,
            enumerable: false,
            configurable: false
        });

        function get_func2() {
            return 10;
        }
assert.throws(TypeError, function() {
            Object.defineProperties(arg, {
                "0": {
                    get: get_func2
                }
            });
});
            var desc = Object.getOwnPropertyDescriptor(arg, "0");
assert.sameValue(desc.get, get_func1, 'desc.get');
assert.sameValue(typeof desc.set, "undefined", 'typeof desc.set');
assert.sameValue(desc.enumerable, false, 'desc.enumerable');
assert.sameValue(desc.configurable, false, 'desc.configurable');