Fix roadmaps controller and add some specs

app/controllers/concerns/issuable_collections.rb

@@ -91,7 +91,7 @@ module IssuableCollections
     options = {
       scope: params[:scope],
       state: params[:state],
-      sort: set_sort_order_from_user_preference || set_sort_order_from_cookie || default_sort_order
+      sort: set_sort_order
     }
 
     # Used by view to highlight active option
@@ -113,6 +113,10 @@ module IssuableCollections
     'opened'
   end
 
+  def set_sort_order
+    set_sort_order_from_user_preference || set_sort_order_from_cookie || default_sort_order
+  end
+
   def set_sort_order_from_user_preference
     return unless current_user
     return unless issuable_sorting_field

ee/app/controllers/concerns/epics_actions.rb

@@ -16,6 +16,8 @@ module EpicsActions
 
   def update_cookie_value(value)
     case value
+    when 'created_asc'     then sort_value_oldest_created
+    when 'created_desc'    then sort_value_recently_created
     when 'start_date_asc'  then sort_value_start_date
     when 'end_date_asc'    then sort_value_end_date
     else

ee/app/controllers/groups/roadmap_controller.rb

@@ -10,13 +10,17 @@ module Groups
     # show roadmap for a group
     def show
       # Used only to show to correct sort dropdown option on filter bar
-      @sort = params[:sort] || current_user&.user_preference&.epics_sort || default_sort_order
+      @sort = set_sort_order
 
       @epics_count = EpicsFinder.new(current_user, group_id: @group.id).execute.count
     end
 
     private
 
+    def issuable_sorting_field
+      :epics_sort
+    end
+
     def persist_roadmap_layout
       return unless current_user
 

ee/app/helpers/ee/sorting_helper.rb

@@ -16,6 +16,7 @@ module EE
 
     def epics_sort_options_hash
       {
+        sort_value_created_date => sort_title_created_date,
         sort_value_oldest_created => sort_title_created_date,
         sort_value_recently_created => sort_title_created_date,
         sort_value_oldest_updated => sort_title_recently_updated,

ee/spec/controllers/groups/roadmap_controller_spec.rb

@@ -31,12 +31,26 @@ describe Groups::RoadmapController do
         expect(response).to have_gitlab_http_status(200)
       end
 
+      context 'when user is logged in' do
         it 'stores sorting param in a cookie' do
+          group.update!(visibility_level: Gitlab::VisibilityLevel::PUBLIC)
+          sign_out(user)
+
           get :show, group_id: group, sort: 'start_date_asc'
 
           expect(cookies['epic_sort']).to eq('start_date_asc')
           expect(response).to have_gitlab_http_status(200)
         end
       end
+
+      context 'when there is no user logged in' do
+        it 'stores sorting param in a cookie' do
+          get :show, group_id: group, sort: 'start_date_asc'
+
+          expect(response).to have_gitlab_http_status(200)
+          expect(user.reload.user_preference.epics_sort).to eq('start_date_asc')
+        end
+      end
+    end
   end
 end