JSTests/test262/test/built-ins/Array/prototype/indexOf/15.4.4.14-9-b-ii-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
description: Array.prototype.indexOf - search element is -NaN
---*/

assert.sameValue([+NaN, NaN, -NaN].indexOf(-NaN), -1, '[+NaN, NaN, -NaN].indexOf(-NaN)');