test262/test/built-ins/Object/defineProperty/15.2.3.6-4-85.js

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// 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.
/*---
2014-07-25 00:41:42 +02:00
es5id: 15.2.3.6-4-85
description: >
Object.defineProperty will not throw TypeError if
name.configurable = false, name.writable = false, name.value = NaN
and desc.value = NaN (8.12.9 step 10.a.ii.1)
includes: [propertyHelper.js]
---*/
var obj = {};
Object.defineProperty(obj, "foo", {
value: NaN,
writable: false,
configurable: false
});
Object.defineProperty(obj, "foo", {
value: NaN,
writable: false,
configurable: false
});
assert(isNaN(obj.foo));
verifyNotWritable(obj, "foo");
verifyNotEnumerable(obj, "foo");
verifyNotConfigurable(obj, "foo");