checking the back functionality for returning to check answers from primary group page

spec/features/schemes_spec.rb

@@ -399,6 +399,7 @@ RSpec.describe "Schemes scheme Features" do
                       end
                     end
 
+                    context "changing primary client group" do
                       it "allows changing primary-client-group question" do
                         click_link("Change", href: "/schemes/#{scheme.id}/primary-client-group?check_answers=true")
                         expect(page).to have_current_path("/schemes/#{scheme.id}/primary-client-group?check_answers=true")
@@ -410,6 +411,18 @@ RSpec.describe "Schemes scheme Features" do
                         expect(page).to have_content "Older people with support needs"
                       end
 
+                      context "when I press the back button" do
+                        before do
+                          click_link "Back"
+                        end
+
+                        it "lets me select the support answers" do
+                          expect(page).to have_current_path("/schemes/#{scheme.id}/check-answers")
+                          expect(page).to have_content "Check your changes before updating this scheme"
+                        end
+                      end
+                    end
+
                     it "allows changing secondary-client-group question" do
                       click_link("Change", href: "/schemes/#{scheme.id}/secondary-client-group?check_answers=true")
                       expect(page).to have_current_path("/schemes/#{scheme.id}/secondary-client-group?check_answers=true")