translating old capybara selenium/chrome preferences and switches to new

selenium.rb

# load into test setup after `require 'capybara/rails'`

# some sources for below flags and profile settings
# https://stackoverflow.com/questions/43143014/chrome-is-being-controlled-by-automated-test-software/43145088
# https://sqa.stackexchange.com/questions/26051/chrome-driver-2-28-chrome-is-being-controlled-by-automated-test-software-notif
# http://stackoverflow.com/questions/12211781/how-to-maximize-window-in-chrome-using-webdriver-python
# update sources for new Options object
# https://github.com/SeleniumHQ/selenium/wiki/Ruby-Bindings
# https://github.com/teamcapybara/capybara/blob/master/lib/capybara/selenium/driver.rb
begin
  chrome_switches = %w[
    --disable-default-apps
    --disable-extensions
    --disable-infobars
    --disable-notifications
    --disable-password-generation --disable-password-manager-reauthentication
    --disable-password-separated-signin-flow
    --disable-popup-blocking
    --disable-save-password-bubble
    --disable-translate
    --incognito
    --mute-audio
    --no-default-browser-check
    --window-size=1280,1024
  ]
  # --ignore-certificate-errors

  chrome_options = Selenium::WebDriver::Chrome::Options.new
  chrome_switches.each do |option|
    chrome_options.add_argument(option)
  end

  chrome_options.add_preference(:download, { prompt_for_download: false })
  chrome_options.add_preference(:credentials_enable_service, false)
  chrome_options.add_preference(:profile,
    {
      password_manager_enabled: false,
      default_content_settings: {popups: 0},
      content_settings: {pattern_pairs: {'*': {'multiple-automatic-downloads': 1}}}
    }
  )

  Capybara.register_driver :selenium do |app|
    # according to https://github.com/SeleniumHQ/selenium/blob/master/rb/lib/selenium/webdriver/remote/http/default.rb
    # Warning: Setting {#open_timeout} to non-nil values will cause a separate thread to spawn.
    # Debuggers that freeze the process will not be able to evaluate any operations if that happens.
    client = Selenium::WebDriver::Remote::Http::Default.new(open_timeout: nil, read_timeout: 120)

    Capybara::Selenium::Driver.new(
      app,
      browser: :chrome, clear_local_storage: true, clear_session_storage: true,
      options: chrome_options,
      http_client: client
    )
  end

  Capybara.register_driver :selenium_chrome_headless do |app|
    chrome_options.add_argument("--headless")

    # according to https://github.com/SeleniumHQ/selenium/blob/master/rb/lib/selenium/webdriver/remote/http/default.rb
    # Warning: Setting {#open_timeout} to non-nil values will cause a separate thread to spawn.
    # Debuggers that freeze the process will not be able to evaluate any operations if that happens.
    client = Selenium::WebDriver::Remote::Http::Default.new(open_timeout: nil, read_timeout: 120)
    Capybara::Selenium::Driver.new(
      app,
      browser: :chrome, clear_local_storage: true, clear_session_storage: true,
      options: chrome_options,
      http_client: client
    )
  end
end

Capybara.register_driver :selenium_firefox do |app|
  Capybara::Selenium::Driver.new(app,
    browser: :firefox, clear_local_storage: true, clear_session_storage: true
  )
end

Capybara.register_driver :selenium_cookies_disabled do |app|
  profile = Selenium::WebDriver::Firefox::Profile.new
  profile['network.cookie.cookieBehavior'] = 2
  Capybara::Selenium::Driver.new(app,
    clear_local_storage: true, clear_session_storage: true,
    browser: :firefox, profile: profile
  )
end

# maximise the browser window to avoid clicking errors at small window sizes
RSpec.configure do |config|
  config.before(:each, js: true) do
    if (
      [:selenium_firefox, :selenium_cookies_disabled]
    ).include?(Capybara.current_driver)
    then
      Capybara.page.driver.browser.manage.window.maximize
    end
  end
end