Add tests for sales paths

spec/helpers/form_page_helper_spec.rb

@@ -3,13 +3,26 @@ require "rails_helper"
 RSpec.describe FormPageHelper do
   describe "#action_href" do
     let(:lettings_log) { FactoryBot.create(:lettings_log) }
+    let(:sales_log) { FactoryBot.create(:sales_log) }
 
-    it "has an update answer link href helper" do
-      expect(action_href(lettings_log, "net_income")).to eq("/lettings-logs/#{lettings_log.id}/net-income?referrer=check_answers")
+    context "with a lettings log" do
+      it "has an update answer link href helper" do
+        expect(action_href(lettings_log, "net_income")).to eq("/lettings-logs/#{lettings_log.id}/net-income?referrer=check_answers")
+      end
+
+      it "returns a correct referrer in the url" do
+        expect(action_href(lettings_log, "retirement_value_check", "interruption_screen")).to eq("/lettings-logs/#{lettings_log.id}/retirement-value-check?referrer=interruption_screen")
+      end
     end
 
-    it "returns a correct referrer in the url" do
-      expect(action_href(lettings_log, "retirement_value_check", "interruption_screen")).to eq("/lettings-logs/#{lettings_log.id}/retirement-value-check?referrer=interruption_screen")
+    context "with a sales log" do
+      it "has an update answer link href helper" do
+        expect(action_href(sales_log, "buyer_1_age")).to eq("/sales-logs/#{sales_log.id}/buyer-1-age?referrer=check_answers")
+      end
+
+      it "returns a correct referrer in the url" do
+        expect(action_href(sales_log, "grant_value_check", "interruption_screen")).to eq("/sales-logs/#{sales_log.id}/grant-value-check?referrer=interruption_screen")
+      end
     end
   end
 end