JSTests/test262/test/built-ins/Array/prototype/filter/15.4.4.20-3-2.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.filter
es5id: 15.4.4.20-3-2
description: >
    Array.prototype.filter applied on an Array-like object if 'length'
    is 1 (length overridden to true(type conversion))
---*/

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

        var obj = { 0: 11, 1: 9, length: true };
        var newArr = Array.prototype.filter.call(obj, callbackfn);

assert.sameValue(newArr.length, 1, 'newArr.length');
assert.sameValue(newArr[0], 11, 'newArr[0]');