test/built-ins/Array/prototype/every/15.4.4.16-7-c-i-20.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.every
es5id: 15.4.4.16-7-c-i-20
description: >
    Array.prototype.every - element to be retrieved is own accessor
    property without a get function that overrides an inherited
    accessor property on an Array
---*/

var accessed = false;

function callbackfn(val, idx, obj) {
  accessed = true;
  return typeof val === "undefined";
}

var arr = [];

Object.defineProperty(arr, "0", {
  set: function() {},
  configurable: true
});

Array.prototype[0] = 100;

assert(arr.every(callbackfn), 'arr.every(callbackfn) !== true');
assert(accessed, 'accessed !== true');