Update privacy notice page tests

spec/models/form/sales/pages/privacy_notice_spec.rb

@@ -5,7 +5,7 @@ RSpec.describe Form::Sales::Pages::PrivacyNotice, type: :model do
 
   let(:page_id) { "privacy_notice" }
   let(:page_definition) { nil }
-  let(:subsection) { instance_double(Form::Subsection, id: "setup") }
+  let(:subsection) { instance_double(Form::Subsection, id: "setup", copy_key: "setup") }
   let(:form) { instance_double(Form, start_date: Time.zone.local(2023, 4, 1), start_year_2024_or_later?: false) }
 
   before do
@@ -31,20 +31,10 @@ RSpec.describe Form::Sales::Pages::PrivacyNotice, type: :model do
   context "when there are joint buyers" do
     subject(:page) { described_class.new(page_id, page_definition, subsection, joint_purchase: true) }
 
-    context "when the form start year is before 2024" do
-      let(:subsection) { instance_double(Form::Subsection, id: "household_characteristics") }
+    let(:subsection) { instance_double(Form::Subsection, id: "subsection_id", copy_key: "subsection_copy_key") }
 
-      it "has the expected copy_key" do
-        expect(page.copy_key).to eq("sales.household_characteristics.privacynotice.joint_purchase")
-      end
-    end
-
-    context "when the form start year is after 2024" do
-      let(:form) { instance_double(Form, start_date: Time.zone.local(2024, 4, 1), start_year_2024_or_later?: true) }
-
-      it "has the expected copy_key" do
-        expect(page.copy_key).to eq("sales.setup.privacynotice.joint_purchase")
-      end
+    it "has the expected copy_key" do
+      expect(page.copy_key).to eq("sales.subsection_copy_key.privacynotice.joint_purchase")
     end
 
     it "has correct depends_on" do
@@ -55,20 +45,10 @@ RSpec.describe Form::Sales::Pages::PrivacyNotice, type: :model do
   context "when there is a single buyer" do
     subject(:page) { described_class.new(page_id, page_definition, subsection, joint_purchase: false) }
 
-    context "when the form start year is before 2024" do
-      let(:subsection) { instance_double(Form::Subsection, id: "household_characteristics") }
-
-      it "has the expected copy_key" do
-        expect(page.copy_key).to eq("sales.household_characteristics.privacynotice.not_joint_purchase")
-      end
-    end
-
-    context "when the form start year is after 2024" do
-      let(:form) { instance_double(Form, start_date: Time.zone.local(2024, 4, 1), start_year_2024_or_later?: true) }
+    let(:subsection) { instance_double(Form::Subsection, id: "subsection_id", copy_key: "subsection_copy_key") }
 
-      it "has the expected copy_key" do
-        expect(page.copy_key).to eq("sales.setup.privacynotice.not_joint_purchase")
-      end
+    it "has the expected copy_key" do
+      expect(page.copy_key).to eq("sales.subsection_copy_key.privacynotice.not_joint_purchase")
     end
 
     it "has correct depends_on" do