Bug 1330882 - Part 3: Add a test case for opening new windows as rounded size...

    'places',

    'preferences',

    'privatebrowsing',

    'resistfingerprinting',

    'search',

    'sessionstore',

    'shell',

# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-

# vim: set filetype=python:

# 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/.

BROWSER_CHROME_MANIFESTS += [

    'test/browser/browser.ini',

]

"use strict";

module.exports = {

  "extends": [

    "../../../../../testing/mochitest/browser.eslintrc.js"

  ]

};

[DEFAULT]

tags = resistfingerprinting

support-files =

  file_dummy.html

[browser_roundedWindow.js]

/*

 * Bug 1330882 - A test case for opening new windows as rounded size when

 *   fingerprinting resistance is enabled.

 */

const { classes: Cc, Constructor: CC, interfaces: Ci, utils: Cu } = Components;

const TEST_DOMAIN = "http://example.net/";

const TEST_PATH = TEST_DOMAIN + "browser/browser/components/resistFingerprinting/test/browser/";

let desiredWidth;

let desiredHeight;

add_task(function* setup() {

  yield SpecialPowers.pushPrefEnv({"set":

    [["privacy.resistFingerprinting", true]]

  });

  // Calculate the desire window size which is depending on the available screen

  // space.

  let chromeUIWidth = window.outerWidth - window.innerWidth;

  let chromeUIHeight = window.outerHeight - window.innerHeight;

  let availWidth = window.screen.availWidth;

  let availHeight = window.screen.availHeight;

  // Ideally, we would round the window size as 1000x1000.

  let availContentWidth = Math.min(1000, availWidth - chromeUIWidth);

  let availContentHeight = Math.min(1000, 0.95 * availHeight - chromeUIHeight);

  // Rounded the desire size to the nearest 200x100.

  desiredWidth = availContentWidth - (availContentWidth % 200);

  desiredHeight = availContentHeight - (availContentHeight % 100);

});

add_task(function* () {

  // Open a tab to test window.open().

  let tab = yield BrowserTestUtils.openNewForegroundTab(

    gBrowser, TEST_PATH + "file_dummy.html");

  yield ContentTask.spawn(tab.linkedBrowser, {desiredWidth, desiredHeight},

    function* (obj) {

      // Create a new window with the size which is not rounded.

      let win = content.open("http://example.net/", "", "width=1030,height=1025");

      win.onresize = () => {

        is(win.screen.width, obj.desiredWidth,

          "The screen.width has a correct rounded value");

        is(win.screen.height, obj.desiredHeight,

          "The screen.height has a correct rounded value");

        is(win.innerWidth, obj.desiredWidth,

          "The window.innerWidth has a correct rounded value");

        is(win.innerHeight, obj.desiredHeight,

          "The window.innerHeight has a correct rounded value");

      };

      win.onload = () => win.close();

    }

  );

  yield BrowserTestUtils.removeTab(tab);

  // Open a new window.

  let win = yield BrowserTestUtils.openNewBrowserWindow();

  // Load a page and verify its window size.

  tab = yield BrowserTestUtils.openNewForegroundTab(

    win.gBrowser, TEST_PATH + "file_dummy.html");

  yield ContentTask.spawn(tab.linkedBrowser, {desiredWidth, desiredHeight},

    function* (obj) {

      is(content.screen.width, obj.desiredWidth,

        "The screen.width has a correct rounded value");

      is(content.screen.height, obj.desiredHeight,

        "The screen.height has a correct rounded value");

      is(content.innerWidth, obj.desiredWidth,

        "The window.innerWidth has a correct rounded value");

      is(content.innerHeight, obj.desiredHeight,

        "The window.innerHeight has a correct rounded value");

    }

  );

  yield BrowserTestUtils.removeTab(tab);

  yield BrowserTestUtils.closeWindow(win);

});