Add configurable parent class

app/controllers/rosetta/application_controller.rb

@@ -1,5 +1,5 @@
 module Rosetta
-  class ApplicationController < ActionController::Base
+  class ApplicationController < Rosetta.config.parent_controller_class.constantize
     include Pagy::Backend
   end
 end

lib/rosetta/configuration.rb

@@ -1,11 +1,13 @@
 module Rosetta
   class Configuration
     attr_reader :default_locale
+    attr_accessor :parent_controller_class
 
     DefaultLocale = Struct.new(:name, :code)
 
     def initialize
       set_default_locale(name: "English", code: "en")
+      @parent_controller_class = "ActionController::Base"
     end
 
     def set_default_locale(name:, code:)

test/integration/translations_test.rb

@@ -23,6 +23,7 @@ class TranslationsTest < ActionDispatch::IntegrationTest
 
     # Load up the keys
     get root_path(locale: locale.code)
+    sleep 1
     key = Rosetta::TranslationKey.find_by(value: "Available locales")
 
     # Create the translation