JSTests/test262/test/built-ins/Array/prototype/some/15.4.4.17-7-b-2.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.some
es5id: 15.4.4.17-7-b-2
description: Array.prototype.some - added properties in step 2 are visible here
---*/

        function callbackfn(val, idx, obj) {
            if (idx === 2 && val === "length") {
                return true;
            } else {
                return false;
            }
        }

        var arr = { };

        Object.defineProperty(arr, "length", {
            get: function () {
                arr[2] = "length";
                return 3;
            },
            configurable: true
        });

assert(Array.prototype.some.call(arr, callbackfn), 'Array.prototype.some.call(arr, callbackfn) !== true');