JSTests/test262/test/built-ins/Object/defineProperties/15.2.3.7-5-b-39.js

// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es5id: 15.2.3.7-5-b-39
description: >
    Object.defineProperties - value of 'enumerable' property of
    'descObj' is NaN (8.10.5 step 3.b)
---*/

var obj = {};
var accessed = false;

Object.defineProperties(obj, {
  prop: {
    enumerable: NaN
  }
});
for (var property in obj) {
  if (property === "prop") {
    accessed = true;
  }
}

assert.sameValue(accessed, false, 'accessed');