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

33 lines
1006 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-a-2
description: >
Object.seal - 'P' is own data property that overrides an inherited
data property
includes: [runTestCase.js]
---*/
function testcase() {
var proto = { foo: 0 };
var ConstructFun = function () { };
ConstructFun.prototype = proto;
var child = new ConstructFun();
Object.defineProperty(child, "foo", {
value: 10,
configurable: true
});
var preCheck = Object.isExtensible(child);
Object.seal(child);
delete child.foo;
return preCheck && child.foo === 10;
}
runTestCase(testcase);