/// 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. | |
/** | |
* @path ch13/13.2/13.2-17-1.js | |
* @description Function Object has 'constructor' as its own property, it is not enumerable and does not invoke the setter defined on Function.prototype.constructor (Step 17) | |
*/ | |
function testcase() { | |
var desc = Object.getOwnPropertyDescriptor(Object.prototype, "constructor"); | |
try { | |
var getFunc = function () { | |
return 100; | |
}; | |
var data = "data"; | |
var setFunc = function (value) { | |
data = value; | |
}; | |
Object.defineProperty(Object.prototype, "constructor", { | |
get: getFunc, | |
set: setFunc, | |
configurable: true | |
}); | |
var fun = function () {}; | |
var verifyValue = false; | |
verifyValue = typeof fun.prototype.constructor === "function"; | |
var verifyEnumerable = false; | |
for (var p in fun.prototype) { | |
if (p === "constructor" && fun.prototype.hasOwnProperty("constructor")) { | |
verifyEnumerable = true; | |
} | |
} | |
var verifyWritable = false; | |
fun.prototype.constructor = 12; | |
verifyWritable = (fun.prototype.constructor === 12); | |
var verifyConfigurable = false; | |
delete fun.prototype.constructor; | |
verifyConfigurable = fun.hasOwnProperty("constructor"); | |
return verifyValue && verifyWritable && !verifyEnumerable && !verifyConfigurable && data === "data"; | |
} finally { | |
Object.defineProperty(Object.prototype, "constructor", desc); | |
} | |
} | |
runTestCase(testcase); |