fune/browser/components/customizableui/test/browser_987492_window_api.js

/* 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";

add_task(async function testOneWindow() {
  let windows = [];
  for (let win of CustomizableUI.windows) {
    windows.push(win);
  }
  is(windows.length, 1, "Should have one customizable window");
});

add_task(async function testOpenCloseWindow() {
  let newWindow = null;
  let openListener = {
    onWindowOpened(window) {
      newWindow = window;
    },
  };
  CustomizableUI.addListener(openListener);

  {
    let win = await openAndLoadWindow(null, true);
    is(
      newWindow,
      win,
      "onWindowOpen event should have received expected window"
    );
    isnot(newWindow, null, "Should have gotten onWindowOpen event");
  }

  CustomizableUI.removeListener(openListener);

  let windows = [];
  for (let win of CustomizableUI.windows) {
    windows.push(win);
  }
  is(windows.length, 2, "Should have two customizable windows");
  isnot(
    windows.indexOf(window),
    -1,
    "Current window should be in window collection."
  );
  isnot(
    windows.indexOf(newWindow),
    -1,
    "New window should be in window collection."
  );

  let closedWindow = null;
  let closeListener = {
    onWindowClosed(window) {
      closedWindow = window;
    },
  };
  CustomizableUI.addListener(closeListener);
  await promiseWindowClosed(newWindow);
  isnot(closedWindow, null, "Should have gotten onWindowClosed event");
  is(
    newWindow,
    closedWindow,
    "Closed window should match previously opened window"
  );
  CustomizableUI.removeListener(closeListener);

  windows = [];
  for (let win of CustomizableUI.windows) {
    windows.push(win);
  }
  is(windows.length, 1, "Should have one customizable window");
  isnot(
    windows.indexOf(window),
    -1,
    "Current window should be in window collection."
  );
  is(
    windows.indexOf(closedWindow),
    -1,
    "Closed window should not be in window collection."
  );
});