test262/test/built-ins/undefined/15.1.1.3-2.js

21 lines
755 B
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: 15.1.1.3-2
description: undefined is not writable, should throw TypeError in strict mode
flags: [onlyStrict]
includes: [fnGlobalObject.js]
---*/
var global = fnGlobalObject();
assert.throws(TypeError, function() {
global["undefined"] = 5; // Should throw a TypeError as per 8.12.5
});
assert.sameValue(global["undefined"], void 0);
assert.sameValue(undefined, void 0);