js/xpconnect/tests/unit/test_bug780370.js@6474c204b198 (annotated)
js/xpconnect/tests/unit/test_bug780370.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 3 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | |
| michael@0 | 5 | /* See https://bugzilla.mozilla.org/show_bug.cgi?id=780370 */ |
| michael@0 | 6 | |
| michael@0 | 7 | const Cu = Components.utils; |
| michael@0 | 8 | |
| michael@0 | 9 | // Use a COW to expose a function from a standard prototype, and make sure it's |
| michael@0 | 10 | // still remapped. |
| michael@0 | 11 | |
| michael@0 | 12 | function run_test() |
| michael@0 | 13 | { |
| michael@0 | 14 | var sb = Cu.Sandbox("http://www.example.com"); |
| michael@0 | 15 | sb.obj = { foo: 42, __exposedProps__: { hasOwnProperty: 'r' } }; |
| michael@0 | 16 | do_check_eq(Cu.evalInSandbox('typeof obj.foo', sb), 'undefined', "COW works as expected"); |
| michael@0 | 17 | do_check_true(Cu.evalInSandbox('obj.hasOwnProperty === Object.prototype.hasOwnProperty', sb), |
| michael@0 | 18 | "Remapping happens even when the property is explicitly exposed"); |
| michael@0 | 19 | // NB: We used to test for the following, but such behavior became very |
| michael@0 | 20 | // difficult to implement in a recent refactor. We're moving away from this |
| michael@0 | 21 | // API anyway, so we decided to explicitly drop support for this. |
| michael@0 | 22 | // do_check_eq(Cu.evalInSandbox('Object.prototype.bar = 10; obj.bar', sb), 10); |
| michael@0 | 23 | } |
