JSTests/test262/test/built-ins/Array/prototype/every/15.4.4.16-7-b-12.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.every
es5id: 15.4.4.16-7-b-12
description: >
    Array.prototype.every - deleting own property with prototype
    property causes prototype index property to be visited on an
    Array-like object
---*/

        function callbackfn(val, idx, obj) {
            if (idx === 1 && val === 1) {
                return false;
            } else {
                return true;
            }
        }
        var arr = { 0: 0, 1: 111, 2: 2, length: 10 };

        Object.defineProperty(arr, "0", {
            get: function () {
                delete arr[1];
                return 0;
            },
            configurable: true
        });

            Object.prototype[1] = 1;

assert.sameValue(Array.prototype.every.call(arr, callbackfn), false, 'Array.prototype.every.call(arr, callbackfn)');