JSTests/test262/test/built-ins/Array/prototype/indexOf/15.4.4.14-9-5.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.indexof
es5id: 15.4.4.14-9-5
description: Array.prototype.indexOf must return correct index (Object)
---*/

  var obj1 = {toString:function (){return "false"}};
  var obj2 = {toString:function (){return "false"}};
  var obj3 = obj1;
  var a = new Array(false,undefined,0,false,null,{toString:function (){return "false"}},"false",obj2,obj1,obj3);

assert.sameValue(a.indexOf(obj3), 8, 'a[8] = obj1');