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";

 const { keyPress } = require("sdk/dom/events/keys");

 const { Loader } = require("sdk/test/loader");

 const timer = require("sdk/timers");

 exports["test unload keyboard observer"] = function(assert, done) {

   let loader = Loader(module);

   let element = loader.require("sdk/deprecated/window-utils").

                        activeBrowserWindow.document.documentElement;

   let observer = loader.require("sdk/keyboard/observer").

                         observer;

   let called = 0;

   observer.on("keypress", function () { called++; });

   // dispatching "keypress" event to trigger observer listeners.

   keyPress(element, "accel-%");

   // Unload the module.

   loader.unload();

   // dispatching "keypress" even once again.

   keyPress(element, "accel-%");

   // Enqueuing asserts to make sure that assertion is not performed early.

   timer.setTimeout(function () {

     assert.equal(called, 1, "observer was called before unload only.");

     done();

   }, 0);

 };

 require("test").run(exports);