test262/test/built-ins/Object/defineProperty/15.2.3.6-4-293-2.js

41 lines
1.5 KiB
JavaScript
Raw Normal View History

// 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.
/*---
2014-07-25 00:41:42 +02:00
es5id: 15.2.3.6-4-293-2
description: >
Object.defineProperty - 'O' is an Arguments object of a function
that has formal parameters, 'name' is own data property of 'O'
which is also defined in [[ParameterMap]] of 'O', test TypeError
is thrown when updating the [[Value]] attribute value of 'name'
which is defined as unwritable and non-configurable (10.6
[[DefineOwnProperty]] step 4 and step 5b)
includes:
- runTestCase.js
- dataPropertyAttributesAreCorrect.js
---*/
function testcase() {
return (function (a, b, c) {
Object.defineProperty(arguments, "0", {
value: 10,
writable: false,
enumerable: false,
configurable: false
});
try {
Object.defineProperty(arguments, "0", {
value: 20
});
} catch (e) {
var verifyFormal = a === 10;
return e instanceof TypeError && dataPropertyAttributesAreCorrect(arguments, "0", 10, false, false, false) && verifyFormal;
}
return false;
}(0, 1, 2));
}
runTestCase(testcase);