Test copy key when specified on subsection

spec/models/form/sales/subsections/discounted_ownership_scheme_spec.rb

@@ -56,6 +56,10 @@ RSpec.describe Form::Sales::Subsections::DiscountedOwnershipScheme, type: :model
     expect(discounted_ownership_scheme.id).to eq("discounted_ownership_scheme")
   end
 
+  it "has the correct copy key" do
+    expect(discounted_ownership_scheme.copy_key).to eq("sale_information")
+  end
+
   it "has the correct label" do
     expect(discounted_ownership_scheme.label).to eq("Discounted ownership scheme")
   end

spec/models/form/sales/subsections/outright_sale_spec.rb

@@ -109,6 +109,10 @@ RSpec.describe Form::Sales::Subsections::OutrightSale, type: :model do
     expect(outright_sale.id).to eq("outright_sale")
   end
 
+  it "has the correct copy key" do
+    expect(outright_sale.copy_key).to eq("sale_information")
+  end
+
   it "has the correct label" do
     expect(outright_sale.label).to eq("Outright sale")
   end

spec/models/form/sales/subsections/shared_ownership_scheme_spec.rb

@@ -65,6 +65,10 @@ RSpec.describe Form::Sales::Subsections::SharedOwnershipScheme, type: :model do
     expect(shared_ownership_scheme.id).to eq("shared_ownership_scheme")
   end
 
+  it "has the correct copy key" do
+    expect(shared_ownership_scheme.copy_key).to eq("sale_information")
+  end
+
   it "has the correct label" do
     expect(shared_ownership_scheme.label).to eq("Shared ownership scheme")
   end