Add FeatureToggleHelper for tests, enabling feature toggle changes for tests

spec/spec_helper.rb

@@ -80,6 +80,7 @@ RSpec.configure do |config|
   config.include Spree::CheckoutHelpers
   config.include Spree::Core::TestingSupport::ControllerRequests, :type => :controller
   config.include Devise::TestHelpers, :type => :controller
+  config.include OpenFoodWeb::FeatureToggleHelper
 
   # Factory girl
   require 'factory_girl_rails'

spec/support/feature_toggle_helper.rb

@@ -0,0 +1,9 @@
+module OpenFoodWeb
+  module FeatureToggleHelper
+    def set_feature_toggle(feature, status)
+      features = OpenFoodWeb::FeatureToggle.features
+      features[feature] = status
+      OpenFoodWeb::FeatureToggle.stub(:features) { features }
+    end
+  end
+end