CAPT-2104 Redirect to start page if no reminder in session

app/controllers/reminders_controller.rb

@@ -6,6 +6,8 @@ def show
 
     if @form.set_reminder_from_claim
       redirect_to reminder_path(journey: journey::ROUTING_NAME, slug: "confirmation")
+    elsif params[:slug] == "confirmation" && @form.reminder.nil?
+      redirect_to journey_session.journey_class.start_page_url
     else
       render view_file
     end

app/forms/reminders/confirmation_form.rb

@@ -28,7 +28,7 @@ def set_reminder_from_claim
     private
 
     def itt_subject
-      journey_session.answers.eligible_itt_subject
+      defined?(journey_session.answers.eligible_itt_subject) ? journey_session.answers.eligible_itt_subject : nil
     end
 
     def itt_subject_for_submitted_claim

spec/requests/reminders_spec.rb

@@ -1,12 +1,12 @@
 require "rails_helper"
 
 RSpec.describe "Claims" do
-  before do
-    create(:journey_configuration, :additional_payments)
-    start_claim("additional-payments")
-  end
-
   describe "#create" do
+    before do
+      create(:journey_configuration, :additional_payments)
+      start_claim("additional-payments")
+    end
+
     let(:submit_form) { put reminder_path(journey: "additional-payments", slug: "personal-details", params: form_params) }
 
     context "with full name and valid email address" do
@@ -57,4 +57,25 @@
       end
     end
   end
+
+  # Rollbar error - confirmation page loaded without reminder that can be loaded from the session information
+  describe "#show" do
+    shared_examples "confirmation_page_no_reminder" do |journey|
+      before do
+        create(:journey_configuration, journey::ROUTING_NAME.underscore.to_sym)
+      end
+
+      subject { get reminder_path(journey: journey::ROUTING_NAME.to_sym, slug: "confirmation") }
+
+      it { is_expected.to redirect_to(journey.start_page_url) }
+    end
+
+    describe "for FurtherEducationPayments journey" do
+      include_examples "confirmation_page_no_reminder", Journeys::FurtherEducationPayments
+    end
+
+    describe "for AdditionalPaymentsForTeaching journey" do
+      include_examples "confirmation_page_no_reminder", Journeys::AdditionalPaymentsForTeaching
+    end
+  end
 end