register_selenium

# File actionpack/lib/action_dispatch/system_testing/driver.rb, line 46
        def register_selenium(app)
          Capybara::Selenium::Driver.new(app, **{ browser: @browser.type }.merge(browser_options)).tap do |driver|
            driver.browser.manage.window.size = Selenium::WebDriver::Dimension.new(*@screen_size)
          end
        end