// 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. /*--- description: Non-writable property on a prototype written to. includes: [runTestCase.js] ---*/ function testcase() { function foo() {}; Object.defineProperty(foo.prototype, "bar", {value: "unwritable"}); var o = new foo(); o.bar = "overridden"; return o.hasOwnProperty("bar")===false && o.bar==="unwritable"; } runTestCase(testcase);