gecko-dev/js/xpconnect/tests/unit/test_bug780370.js

17 строки
670 B
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* See https://bugzilla.mozilla.org/show_bug.cgi?id=780370 */
// Use a COW to expose a function from a standard prototype, and make we deny
// access to it.
function run_test()
{
var sb = Cu.Sandbox("http://www.example.com");
sb.obj = { foo: 42, __exposedProps__: { hasOwnProperty: 'r' } };
Assert.equal(Cu.evalInSandbox('typeof obj.foo', sb), 'undefined', "COW works as expected");
Assert.equal(Cu.evalInSandbox('obj.hasOwnProperty', sb), undefined);
}