feat(Users::CommencerController#commencer): ensure to redirect to replaced_by_procedure when it exisits

app/controllers/users/commencer_controller.rb

@@ -5,8 +5,8 @@ module Users
     def commencer
       @procedure = retrieve_procedure
       return procedure_not_found if @procedure.blank? || @procedure.brouillon?
-      @revision = @procedure.published_revision
 
+      @revision = @procedure.published_revision
       render 'commencer/show'
     end
 
@@ -69,7 +69,10 @@ module Users
     def procedure_not_found
       procedure = Procedure.find_by(path: params[:path])
 
-      if procedure&.close?
+      if procedure&.replaced_by_procedure
+        redirect_to commencer_path(path: procedure.replaced_by_procedure.path)
+        return
+      elsif procedure&.close?
         flash.alert = procedure.service.presence ?
                       t('errors.messages.procedure_archived.with_service_and_phone_email', service_name: procedure.service.nom, service_phone_number: procedure.service.telephone, service_email: procedure.service.email) :
                       t('errors.messages.procedure_archived.with_organisation_only', organisation_name: procedure.organisation)

spec/controllers/users/commencer_controller_spec.rb

@@ -51,6 +51,17 @@ describe Users::CommencerController, type: :controller do
         expect(response).to redirect_to(root_path)
       end
     end
+
+    context 'when procedure has a replaced_by_procedure' do
+      let(:path) { published_procedure.path }
+
+      it 'redirects to new procedure' do
+        replaced_by_procedure = create(:procedure, :published)
+        published_procedure.update!(replaced_by_procedure_id: replaced_by_procedure.id)
+        published_procedure.close!
+        expect(subject).to redirect_to(commencer_path(path: replaced_by_procedure.path))
+      end
+    end
   end
 
   describe '#commencer_test' do