// Copyright (c) 2014 Ryan Lewis. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es6id: 20.1.2.4
author: Ryan Lewis
description: Number.IsNaN should return true if called with NaN.
includes: [runTestCase.js]
---*/

function testcase() {
  return Number.isNaN(NaN) === true;
 }
runTestCase(testcase);