/// 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. | |
/** | |
* Refer 11.1.5; | |
* The production | |
* PropertyNameAndValueList : PropertyNameAndValueList , PropertyAssignment | |
* 5.Call the [[DefineOwnProperty]] internal method of obj with arguments propId.name, propId.descriptor, and false. | |
* | |
* @path ch11/11.1/11.1.5/11.1.5_4-5-1.js | |
* @description Object initialization using PropertyNameAndValueList (PropertyNameAndValueList , PropertyAssignment) when property (read-only) exists in Object.prototype (Step 5) | |
*/ | |
function testcase() { | |
try { | |
Object.defineProperty(Object.prototype, "prop2", { | |
value: 100, | |
writable: false, | |
configurable: true | |
}); | |
var obj = { prop1: 101, prop2: 12 }; | |
return obj.hasOwnProperty("prop2"); | |
} finally { | |
delete Object.prototype.prop2; | |
} | |
} | |
runTestCase(testcase); |