test_dummy_config

# File railties/lib/rails/generators/rails/plugin/plugin_generator.rb, line 124
    def test_dummy_config
      template "rails/boot.rb", "#{dummy_path}/config/boot.rb", force: true

      if mountable?
        template "rails/routes.rb", "#{dummy_path}/config/routes.rb", force: true
      end
      if engine? && !api?
        insert_into_file "#{dummy_path}/config/application.rb", indent(<<~RUBY, 4), after: /^\s*config\.load_defaults.*\n/

          # For compatibility with applications that use this config
          config.action_controller.include_all_helpers = false
        RUBY
      end
    end