The Tor Browser / file revision

 /* 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/. */

 function run_test() {

     let loadContext = { get usePrivateBrowsing() { return gInPrivateBrowsing; } };

     ContentPrefTest.deleteDatabase();

     var cp = new ContentPrefInstance(loadContext);

     do_check_neq(cp, null, "Retrieving the content prefs service failed");

     try {

       const uri1 = ContentPrefTest.getURI("http://www.example.com/");

       const uri2 = ContentPrefTest.getURI("http://www.anotherexample.com/");

       const pref_name = "browser.content.full-zoom";

       const zoomA = 1.5, zoomA_new = 0.8, zoomB = 1.3;

       // save Zoom-A

       cp.setPref(uri1, pref_name, zoomA);

       // make sure Zoom-A is retrievable

       do_check_eq(cp.getPref(uri1, pref_name), zoomA);

       // enter private browsing mode

       enterPBMode();

       // make sure Zoom-A is retrievable

       do_check_eq(cp.getPref(uri1, pref_name), zoomA);

       // save Zoom-B

       cp.setPref(uri2, pref_name, zoomB);

       // make sure Zoom-B is retrievable

       do_check_eq(cp.getPref(uri2, pref_name), zoomB);

       // update Zoom-A

       cp.setPref(uri1, pref_name, zoomA_new);

       // make sure Zoom-A has changed

       do_check_eq(cp.getPref(uri1, pref_name), zoomA_new);

       // exit private browsing mode

       exitPBMode();

       // make sure Zoom-A change has not persisted

       do_check_eq(cp.getPref(uri1, pref_name), zoomA);

       // make sure Zoom-B change has not persisted

       do_check_eq(cp.hasPref(uri2, pref_name), false);

     } catch (e) {

       do_throw("Unexpected exception: " + e);

     }

 }