// 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-c-iii-2
description: Array.prototype.some - return value of callbackfn is null
---*/

        var accessed = false;

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

        var obj = { 0: 11, length: 2 };

assert.sameValue(Array.prototype.some.call(obj, callbackfn), false, 'Array.prototype.some.call(obj, callbackfn)');
assert(accessed, 'accessed !== true');
