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

  var a = new Array(0,1);
  a[4294967294] = 2;          // 2^32-2 - is max array element
  a[4294967295] = 3;          // 2^32-1 added as non-array element property
  a[4294967296] = 4;          // 2^32   added as non-array element property
  a[4294967297] = 5;          // 2^32+1 added as non-array element property

  // start searching near the end so in case implementation actually tries to test all missing elements!!

assert.sameValue(a.indexOf(2,4294967290 ), 4294967294, 'a.indexOf(2,4294967290 )');
assert.sameValue(a.indexOf(3,4294967290), -1, 'a.indexOf(3,4294967290)');
assert.sameValue(a.indexOf(4,4294967290), -1, 'a.indexOf(4,4294967290)');
assert.sameValue(a.indexOf(5,4294967290), -1, 'a.indexOf(5,4294967290)');