JSTests/test262/test/built-ins/Array/prototype/filter/15.4.4.20-2-11.js

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

/*---
esid: sec-array.prototype.filter
es5id: 15.4.4.20-2-11
description: >
    Array.prototype.filter applied to Array-like object, 'length' is
    own accessor property without a get function
---*/

        var accessed = false;
        function callbackfn(val, idx, obj) {
            accessed = true;
            return true;
        }

        var obj = {
            0: 11,
            1: 12
        };
        Object.defineProperty(obj, "length", {
            set: function () { },
            configurable: true
        });

        var newArr = Array.prototype.filter.call(obj, callbackfn);

assert.sameValue(newArr.length, 0, 'newArr.length');
assert.sameValue(accessed, false, 'accessed');