michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: "use strict";
michael@0: 
michael@0: registerCleanupFunction(removeCustomToolbars);
michael@0: 
michael@0: add_task(function skipMissingIDS() {
michael@0:   const kButtonId = "look-at-me-disappear-button";
michael@0:   CustomizableUI.reset();
michael@0:   ok(CustomizableUI.inDefaultState, "Should be in the default state.");
michael@0:   let btn = createDummyXULButton(kButtonId, "Gone!");
michael@0:   CustomizableUI.addWidgetToArea(kButtonId, CustomizableUI.AREA_NAVBAR);
michael@0:   ok(!CustomizableUI.inDefaultState, "Should no longer be in the default state.");
michael@0:   is(btn.parentNode.parentNode.id, CustomizableUI.AREA_NAVBAR, "Button should be in navbar");
michael@0:   btn.remove();
michael@0:   is(btn.parentNode, null, "Button is no longer in the navbar");
michael@0:   ok(CustomizableUI.inDefaultState, "Should be back in the default state, " +
michael@0:                                     "despite unknown button ID in placements.");
michael@0: });
michael@0: 
michael@0: add_task(function asyncCleanup() {
michael@0:   yield resetCustomization();
michael@0: });