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/. */

 "use strict";

 // Adding a separator and then dragging it out of the navbar shouldn't throw

 add_task(function() {

   try {

     let navbar = document.getElementById("nav-bar");

     let separatorSelector = "toolbarseparator[id^=customizableui-special-separator]";

     ok(!navbar.querySelector(separatorSelector), "Shouldn't be a separator in the navbar");

     CustomizableUI.addWidgetToArea('separator', 'nav-bar');

     yield startCustomizing();

     let separator = navbar.querySelector(separatorSelector);

     ok(separator, "There should be a separator in the navbar now.");

     let palette = document.getElementById("customization-palette");

     simulateItemDrag(separator, palette);

     ok(!palette.querySelector(separatorSelector), "No separator in the palette.");

   } catch (ex) {

     Cu.reportError(ex);

     ok(false, "Shouldn't throw an exception moving an item to the navbar.");

   } finally {

     yield endCustomizing();

   }

 });

 add_task(function asyncCleanup() {

   resetCustomization();

 });