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 : PropertyNameAndValueList , PropertyAssignment 
michael@0:  * 5.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_4-5-1.js
michael@0:  * @description Object initialization using PropertyNameAndValueList (PropertyNameAndValueList , PropertyAssignment) when property (read-only) exists in Object.prototype (Step 5)
michael@0:  */
michael@0: 
michael@0: 
michael@0: function testcase() {
michael@0:         try {
michael@0:             Object.defineProperty(Object.prototype, "prop2", {
michael@0:                 value: 100,
michael@0:                 writable: false,
michael@0:                 configurable: true
michael@0:             });
michael@0: 
michael@0:             var obj = { prop1: 101, prop2: 12 };
michael@0: 
michael@0:             return obj.hasOwnProperty("prop2");
michael@0:         } finally {
michael@0:             delete Object.prototype.prop2;
michael@0:         }
michael@0:     }
michael@0: runTestCase(testcase);