michael@0: /// Copyright (c) 2012 Ecma International. All rights reserved. michael@0: /// Ecma International makes this code available under the terms and conditions set michael@0: /// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the michael@0: /// "Use Terms"). Any redistribution of this code must retain the above michael@0: /// copyright and this notice and otherwise comply with the Use Terms. michael@0: /** michael@0: * Refer 11.1.5; michael@0: * The production michael@0: * PropertyNameAndValueList : PropertyAssignment michael@0: * 3.Call the [[DefineOwnProperty]] internal method of obj with arguments propId.name, propId.descriptor, and false. michael@0: * michael@0: * @path ch11/11.1/11.1.5/11.1.5_3-3-1.js michael@0: * @description Object initialization using PropertyNameAndValueList (PropertyAssignment) when property (read-only) exists in Object.prototype (step 3) michael@0: */ michael@0: michael@0: michael@0: function testcase() { michael@0: try { michael@0: Object.defineProperty(Object.prototype, "prop", { michael@0: value: 100, michael@0: writable: false, michael@0: configurable: true michael@0: }); michael@0: var obj = { prop: 12 }; michael@0: michael@0: return obj.hasOwnProperty("prop") && obj.prop === 12; michael@0: } finally { michael@0: delete Object.prototype.prop; michael@0: } michael@0: } michael@0: runTestCase(testcase);