Add Firefox Drivers to capybara_driver.rb

Chrome seems to consistently get updated with new interesting options.

This commit fixes the feature helper in the new admin specs to click on
table cells rather than table rows (Firefox is a bit strict with this
one), and we configure `Capybara::Screenshot` to know how to take
screenshots with headless firefox.

Author: mamhoff

admin/lib/solidus_admin/testing_support/feature_helpers.rb

@@ -19,11 +19,11 @@ def stub_authorization!(user)
       end
 
       def find_row(text)
-        find('table tbody tr', text:)
+        find('table tbody tr td', text:)
       end
 
       def find_row_checkbox(text)
-        find_row(text).find('td:first-child input[type="checkbox"]')
+        find('table tbody tr', text:).find('td:first-child input[type="checkbox"]')
       end
 
       def select_row(text)

admin/spec/features/products_spec.rb

@@ -17,7 +17,7 @@
     expect(page).to have_content("$19.99")
     expect(page).to be_axe_clean
 
-    find('table tbody tr', text: 'Just a product').click
+    find_row('Just a product').click
 
     expect(page).to have_current_path("/admin/products/just-a-prod")
     expect(page).to have_content("Manage images")

core/lib/spree/testing_support/capybara_driver.rb

@@ -2,25 +2,7 @@
 
 require "selenium/webdriver"
 
-Capybara.register_driver :selenium_chrome_headless do |app|
-  browser_options = ::Selenium::WebDriver::Chrome::Options.new
-  browser_options.args << '--headless'
-  browser_options.args << '--disable-gpu'
-  browser_options.args << '--no-sandbox'
-  browser_options.args << '--window-size=1920,1080'
-  browser_options.args << '--disable-backgrounding-occluded-windows'
-  Capybara::Selenium::Driver.new(app, browser: :chrome, options: browser_options)
+Capybara::Screenshot.register_driver(:selenium_headless) do |driver, path|
+  driver.browser.save_screenshot(path)
 end
-
-Capybara.register_driver :selenium_chrome_headless_docker_friendly do |app|
-  browser_options = ::Selenium::WebDriver::Chrome::Options.new
-  browser_options.args << '--headless'
-  browser_options.args << '--disable-gpu'
-  # Sandbox cannot be used inside unprivileged Docker container
-  browser_options.args << '--no-sandbox'
-  browser_options.args << '--window-size=1240,1400'
-  browser_options.args << '--disable-backgrounding-occluded-windows'
-  Capybara::Selenium::Driver.new(app, browser: :chrome, options: browser_options)
-end
-
-Capybara.javascript_driver = (ENV['CAPYBARA_DRIVER'] || :selenium_chrome_headless).to_sym
+Capybara.javascript_driver = (ENV['CAPYBARA_DRIVER'] || :selenium_headless).to_sym