test_bug813901.js - mozsearch

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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=813901 */

// Make sure that we can't inject __exposedProps__ via the proto of a COW-ed object.

function checkThrows(expression, sb, regexp) {

  var result = Cu.evalInSandbox('(function() { try { ' + expression + '; return "allowed"; } catch (e) { return e.toString(); }})();', sb);

  dump('result: ' + result + '\n\n\n');

  Assert.ok(!!regexp.exec(result));

function run_test() {

  var sb = new Cu.Sandbox('http://www.example.org');

  sb.obj = {foo: 2};

  checkThrows('obj.foo = 3;', sb, /denied/);

  Cu.evalInSandbox("var p = {};", sb);

  sb.obj.__proto__ = sb.p;

  checkThrows('obj.foo = 4;', sb, /denied/);