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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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This commit is contained in:
Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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js/xpconnect/tests/unit/test_bug780370.js Normal file
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/* 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 */
const Cu = Components.utils;
// 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' } };
do_check_eq(Cu.evalInSandbox('typeof obj.foo', sb), 'undefined', "COW works as expected");
try {
Cu.evalInSandbox('obj.hasOwnProperty', sb);
do_check_true(false);
} catch (e) {
do_check_true(/privileged or cross-origin callable/i.test(e));
}
}