test/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-b-i-19.js


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// 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.lastindexof
es5id: 15.4.4.15-8-b-i-19
description: >
    Array.prototype.lastIndexOf - element to be retrieved is own
    accessor property without a get function that overrides an
    inherited accessor property on an Array-like object
---*/

        var obj = { length: 1 };

            Object.defineProperty(Object.prototype, "0", {
                get: function () {
                    return 20;
                },
                configurable: true
            });
            Object.defineProperty(obj, "0", {
                set: function () { },
                configurable: true
            });

assert(obj.hasOwnProperty(0), 'obj.hasOwnProperty(0) !== true');
assert.sameValue(Array.prototype.lastIndexOf.call(obj, undefined), 0, 'Array.prototype.lastIndexOf.call(obj, undefined)');