/// 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 ch10/10.6/10.6-7-1.js | |
* @description Arguments Object has length as its own property and does not invoke the setter defined on Object.prototype.length (Step 7) | |
*/ | |
function testcase() { | |
try { | |
var data = "data"; | |
var getFunc = function () { | |
return 12; | |
}; | |
var setFunc = function (value) { | |
data = value; | |
}; | |
Object.defineProperty(Object.prototype, "length", { | |
get: getFunc, | |
set: setFunc, | |
configurable: true | |
}); | |
var verifyValue = false; | |
var argObj = (function () { return arguments })(); | |
verifyValue = (argObj.length === 0); | |
var verifyWritable = false; | |
argObj.length = 1001; | |
verifyWritable = (argObj.length === 1001); | |
var verifyEnumerable = false; | |
for (var p in argObj) { | |
if (p === "length") { | |
verifyEnumerable = true; | |
} | |
} | |
var verifyConfigurable = false; | |
delete argObj.length; | |
verifyConfigurable = argObj.hasOwnProperty("length"); | |
return verifyValue && verifyWritable && !verifyEnumerable && !verifyConfigurable && data === "data"; | |
} finally { | |
delete Object.prototype.length; | |
} | |
} | |
runTestCase(testcase); |