JSTests/test262/test/built-ins/Array/prototype/reduceRight/15.4.4.22-2-9.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.reduceright
description: >
    Array.prototype.reduceRight applied to Array-like object, 'length'
    is an own accessor property that overrides an inherited accessor
    property
---*/

var accessed = false;

function callbackfn1(prevVal, curVal, idx, obj) {
  accessed = true;
  return obj.length === 2;
}

var proto = {};
Object.defineProperty(proto, "length", {
  get: function() {
    return 3;
  },
  configurable: true
});

var Con = function() {};
Con.prototype = proto;

var child = new Con();
Object.defineProperty(child, "length", {
  get: function() {
    return 2;
  },
  configurable: true
});
child[0] = 12;
child[1] = 11;
child[2] = 9;

assert(Array.prototype.reduceRight.call(child, callbackfn1, 111), 'Array.prototype.reduceRight.call(child, callbackfn1, 111) !== true');
assert(accessed, 'accessed !== true');