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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/. */
"use strict";
const { openTab, closeTab } = require("sdk/tabs/utils");
const { Loader } = require("sdk/test/loader");
const { setTimeout } = require("sdk/timers");
exports["test unload tab observer"] = function(assert, done) {
let loader = Loader(module);
let window = loader.require("sdk/deprecated/window-utils").activeBrowserWindow;
let observer = loader.require("sdk/tabs/observer").observer;
let opened = 0;
let closed = 0;
observer.on("open", function onOpen(window) { opened++; });
observer.on("close", function onClose(window) { closed++; });
// Open and close tab to trigger observers.
closeTab(openTab(window, "data:text/html;charset=utf-8,tab-1"));
// Unload the module so that all listeners set by observer are removed.
loader.unload();
// Open and close tab once again.
closeTab(openTab(window, "data:text/html;charset=utf-8,tab-2"));
// Enqueuing asserts to make sure that assertion is not performed early.
setTimeout(function () {
assert.equal(1, opened, "observer open was called before unload only");
assert.equal(1, closed, "observer close was called before unload only");
done();
}, 0);
};
require("test").run(exports);
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