Add group_scores to groups factory, one for every team

spec/factories/groups.rb

@@ -11,6 +11,9 @@ FactoryBot.define do
 
     after(:create) do |group, evaluator|
       create_list(:group_match, evaluator.match_count, group: group)
+      group.group_scores = group.teams.map do |team|
+        create(:group_score, team: team, group: group)
+      end
     end
   end
 end