test262/test/built-ins/Object/defineProperty/15.2.3.6-4-293-3.js

40 lines
1.3 KiB
JavaScript

// 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.
/*---
es5id: 15.2.3.6-4-293-3
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 not thrown when updating the [[Value]] attribute value of
'name' which is defined as non-writable and configurable (10.6
[[DefineOwnProperty]] step 3 and step 5.b)
includes: [propertyHelper.js]
flags: [noStrict]
---*/
(function (a, b, c) {
Object.defineProperty(arguments, "0", {
value: 10,
writable: false,
});
Object.defineProperty(arguments, "0", {
value: 20
});
if (a !== 10) {
$ERROR('Expected "a === 10", actually ' + a);
}
verifyEqualTo(arguments, "0", 20);
verifyNotWritable(arguments, "0");
verifyEnumerable(arguments, "0");
verifyConfigurable(arguments, "0");
}(0, 1, 2));