js/src/tests/test262/built-ins/Array/prototype/indexOf/15.4.4.14-9-a-17.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.indexof
description: >
    Array.prototype.indexOf - decreasing length of array causes index
    property not to be visited
---*/

var arr = [0, 1, 2, "last"];

Object.defineProperty(arr, "0", {
  get: function() {
    arr.length = 3;
    return 0;
  },
  configurable: true
});

assert.sameValue(arr.indexOf("last"), -1, 'arr.indexOf("last")');

reportCompare(0, 0);