js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-b-i-28.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
description: >
    Array.prototype.lastIndexOf - side-effects are visible in
    subsequent iterations on an Array
---*/

var preIterVisible = false;
var arr = [];

Object.defineProperty(arr, "2", {
  get: function() {
    preIterVisible = true;
    return false;
  },
  configurable: true
});

Object.defineProperty(arr, "1", {
  get: function() {
    if (preIterVisible) {
      return true;
    } else {
      return false;
    }
  },
  configurable: true
});

assert.sameValue(arr.lastIndexOf(true), 1, 'arr.lastIndexOf(true)');

reportCompare(0, 0);