Add Page#interruption_screen? method

app/controllers/form_controller.rb

@@ -129,20 +129,26 @@ private
 
   def successful_redirect_path
     if is_referrer_check_answers?
-      page_ids = @log.form.subsection_for_page(@page).pages.map(&:id)
+      page_ids = form.subsection_for_page(@page).pages.map(&:id)
       page_index = page_ids.index(@page.id)
-      next_page = @log.form.next_page(@page, @log, current_user)
-      previous_page = @log.form.previous_page(page_ids, page_index, @log, current_user)
-      if next_page.to_s.include?("value_check") || next_page == previous_page
-        return send("#{@log.class.name.underscore}_#{next_page}_path", @log, { referrer: "check_answers" })
+      next_page_id = form.next_page(@page, @log, current_user)
+      next_page = form.get_page(next_page_id)
+      previous_page = form.previous_page(page_ids, page_index, @log, current_user)
+
+      if next_page&.interruption_screen? || next_page_id == previous_page
+        return send("#{@log.class.name.underscore}_#{next_page_id}_path", @log, { referrer: "check_answers" })
       else
-        return send("#{@log.model_name.param_key}_#{@log.form.subsection_for_page(@page).id}_check_answers_path", @log)
+        return send("#{@log.model_name.param_key}_#{form.subsection_for_page(@page).id}_check_answers_path", @log)
       end
     end
-    redirect_path = @log.form.next_page_redirect_path(@page, @log, current_user)
+    redirect_path = form.next_page_redirect_path(@page, @log, current_user)
     send(redirect_path, @log)
   end
 
+  def form
+    @log&.form
+  end
+
   def mandatory_questions_with_no_response(responses_for_page)
     session["fields"] = {}
     calc_questions = @page.questions.map(&:result_field)

app/models/form/page.rb

@@ -32,6 +32,10 @@ class Form::Page
     end
   end
 
+  def interruption_screen?
+    questions.all? { |question| question.type == "interruption_screen" }
+  end
+
 private
 
   def conditional_question_ids

spec/fixtures/forms/2021_2022.json

@@ -208,7 +208,7 @@
                   "check_answer_label": "Retirement age soft validation",
                   "hidden_in_check_answers": true,
                   "header": "Are you sure this person is retired?",
-                  "type": "radio",
+                  "type": "interruption_screen",
                   "answer_options": {
                     "0": {
                       "value": "Yes"

spec/models/form/page_spec.rb

@@ -47,6 +47,22 @@ RSpec.describe Form::Page, type: :model do
     end
   end
 
+  describe "#interruption_screen?" do
+    context "when it has regular questions" do
+      it "returns false" do
+        expect(page.interruption_screen?).to be false
+      end
+    end
+
+    context "when it has interruption_screen question" do
+      let(:page) { form.get_page("retirement_value_check") }
+
+      it "returns true" do
+        expect(page.interruption_screen?).to be true
+      end
+    end
+  end
+
   context "with a lettings log" do
     let(:lettings_log) { FactoryBot.build(:lettings_log, :in_progress) }