Add valid factories for all models

spec/factories/group_scores.rb

@@ -2,5 +2,7 @@
 
 FactoryBot.define do
   factory :group_score do
+    team
+    group
   end
 end

spec/factories/groups.rb

@@ -3,5 +3,6 @@
 FactoryBot.define do
   factory :group do
     number { 0 }
+    stage
   end
 end

spec/factories/matches.rb

@@ -2,5 +2,7 @@
 
 FactoryBot.define do
   factory :match do
+    stage
+    group
   end
 end

spec/factories/scores.rb

@@ -3,5 +3,7 @@
 FactoryBot.define do
   factory :score do
     score { 0 }
+    match
+    team
   end
 end

spec/factories/stages.rb

@@ -2,5 +2,6 @@
 
 FactoryBot.define do
   factory :stage do
+    tournament
   end
 end

spec/factories/teams.rb

@@ -3,6 +3,6 @@
 FactoryBot.define do
   factory :team do
     name { Faker::Dog.name }
-    group_score
+    tournament
   end
 end