JSTests/test262/test/built-ins/Array/prototype/indexOf/15.4.4.14-9-b-i-4.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.indexof
es5id: 15.4.4.14-9-b-i-4
description: >
    Array.prototype.indexOf - element to be retrieved is own data
    property that overrides an inherited data property on an
    Array-like object
---*/

            Object.prototype[0] = false;

assert.sameValue(Array.prototype.indexOf.call({ 0: true, 1: 1, length: 2 }, true), 0, 'Array.prototype.indexOf.call({ 0: true, 1: 1, length: 2 }, true)');