test/built-ins/Array/prototype/indexOf/15.4.4.14-9-a-3.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
es5id: 15.4.4.14-9-a-3
description: >
    Array.prototype.indexOf - added properties in step 5 are visible
    here on an Array
---*/

var arr = [];
arr.length = 30;
var targetObj = function() {};

var fromIndex = {
  valueOf: function() {
    arr[4] = targetObj;
    return 3;
  }
};

assert.sameValue(arr.indexOf(targetObj, fromIndex), 4, 'arr.indexOf(targetObj, fromIndex)');