test262/test/built-ins/Object/seal/15.2.3.8-2-b-1.js

38 lines
1018 B
JavaScript

// 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: 15.2.3.8-2-b-1
description: >
Object.seal - the [[Configurable]] attribute of own data property
of 'O' is set from true to false and other attributes of the
property are unaltered
includes: [propertyHelper.js]
---*/
var obj = {};
Object.defineProperty(obj, "foo", {
value: 10,
writable: true,
enumerable: true,
configurable: true
});
var preCheck = Object.isExtensible(obj);
Object.seal(obj);
if (!preCheck) {
$ERROR('Expected preCheck to be true, actually ' + preCheck);
}
verifyEqualTo(obj, "foo", 10);
verifyWritable(obj, "foo");
verifyEnumerable(obj, "foo");
verifyNotConfigurable(obj, "foo");