mirror of https://github.com/tc39/test262.git
30 lines
980 B
JavaScript
30 lines
980 B
JavaScript
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// Copyright (c) 2012 Ecma International. All rights reserved.
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// Ecma International makes this code available under the terms and conditions set
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// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the
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// "Use Terms"). Any redistribution of this code must retain the above
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// copyright and this notice and otherwise comply with the Use Terms.
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/*---
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es5id: 15.2.3.10-3-24
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description: >
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Object.preventExtensions - [[Extensible]]: false on a prototype
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doesn't prevent adding properties to an instance that inherits
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from that prototype
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includes: [runTestCase.js]
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---*/
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function testcase() {
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var proto = {};
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var preCheck = Object.isExtensible(proto);
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Object.preventExtensions(proto);
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var ConstructFun = function () { };
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ConstructFun.prototype = proto;
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var child = new ConstructFun();
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child.prop = 10;
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return preCheck && child.hasOwnProperty("prop");
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}
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runTestCase(testcase);
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