test262/test/built-ins/Object/defineProperties/15.2.3.7-6-a-44.js

// Copyright (c) 2012 Ecma International.  All rights reserved.
// Ecma International makes this code available under the terms and conditions set
// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the
// "Use Terms").   Any redistribution of this code must retain the above
// copyright and this notice and otherwise comply with the Use Terms.

/*---
es5id: 15.2.3.7-6-a-44
description: >
    Object.defineProperties - both desc.value and P.value are NaN
    (8.12.9 step 6)
includes: [runTestCase.js]
---*/

function testcase() {

        var obj = {};

        var desc = { value: NaN };
        Object.defineProperty(obj, "foo", desc);

        Object.defineProperties(obj, {
            foo: {
                value: NaN
            }
        });

        var verifyEnumerable = false;
        for (var p in obj) {
            if (p === "foo") {
                verifyEnumerable = true;
            }
        }

        var verifyValue = false;
        obj.prop = "overrideData";
        verifyValue = obj.foo !== obj.foo && isNaN(obj.foo);

        var verifyConfigurable = false;
        delete obj.foo;
        verifyConfigurable = obj.hasOwnProperty("foo");

        return verifyConfigurable && !verifyEnumerable && verifyValue;
    }
runTestCase(testcase);