update copy to handle pluralisation in the case of joint purchase for previous ownership, with associated testing changes

app/models/form/sales/pages/previous_ownership.rb

@@ -1,12 +1,13 @@
 class Form::Sales::Pages::PreviousOwnership < ::Form::Page
-  def initialize(id, hsh, subsection)
-    super
-    @id = "previous_ownership"
+  def initialize(id, hsh, subsection, joint_purchase:)
+    super(id, hsh, subsection)
+    @joint_purchase = joint_purchase
+    @depends_on = [{ "joint_purchase?" => @joint_purchase}]
   end
 
   def questions
     @questions ||= [
-      Form::Sales::Questions::Prevown.new(nil, nil, self),
+      Form::Sales::Questions::Prevown.new(nil, nil, self, joint_purchase: @joint_purchase),
     ]
   end
 end

app/models/form/sales/questions/prevown.rb

@@ -1,9 +1,9 @@
 class Form::Sales::Questions::Prevown < ::Form::Question
-  def initialize(id, hsh, page)
-    super
+  def initialize(id, hsh, page, joint_purchase:)
+    super(id, hsh, page)
     @id = "prevown"
-    @check_answer_label = "Buyers previously owned a property"
-    @header = "Has the buyer previously owned a property?"
+    @check_answer_label = "Buyer#{'s' if joint_purchase} previously owned a property"
+    @header = "#{joint_purchase ? 'Have any of the buyers' : 'Has the buyer'} previously owned a property?"
     @type = "radio"
     @answer_options = ANSWER_OPTIONS
   end

app/models/form/sales/subsections/income_benefits_and_savings.rb

@@ -23,7 +23,8 @@ class Form::Sales::Subsections::IncomeBenefitsAndSavings < ::Form::Subsection
       Form::Sales::Pages::Savings.new(nil, nil, self),
       Form::Sales::Pages::SavingsValueCheck.new("savings_value_check", nil, self),
       Form::Sales::Pages::DepositValueCheck.new("savings_deposit_value_check", nil, self),
-      Form::Sales::Pages::PreviousOwnership.new(nil, nil, self),
+      Form::Sales::Pages::PreviousOwnership.new("previous_ownership_joint_purchase", nil, self, joint_purchase: true),
+      Form::Sales::Pages::PreviousOwnership.new("previous_ownership_not_joint_purchase", nil, self, joint_purchase: false),
       previous_shared_page,
     ].compact
   end

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

@@ -1,11 +1,12 @@
 require "rails_helper"
 
 RSpec.describe Form::Sales::Pages::PreviousOwnership, type: :model do
-  subject(:page) { described_class.new(page_id, page_definition, subsection) }
+  subject(:page) { described_class.new(page_id, page_definition, subsection, joint_purchase:) }
 
-  let(:page_id) { nil }
+  let(:page_id) { "example_id" }
   let(:page_definition) { nil }
   let(:subsection) { instance_double(Form::Subsection) }
+  let(:joint_purchase) { true }
 
   it "has correct subsection" do
     expect(page.subsection).to eq(subsection)
@@ -16,7 +17,7 @@ RSpec.describe Form::Sales::Pages::PreviousOwnership, type: :model do
   end
 
   it "has the correct id" do
-    expect(page.id).to eq("previous_ownership")
+    expect(page.id).to eq("example_id")
   end
 
   it "has the correct header" do
@@ -26,4 +27,16 @@ RSpec.describe Form::Sales::Pages::PreviousOwnership, type: :model do
   it "has the correct description" do
     expect(page.description).to be_nil
   end
+
+  it "when sale is a joint purchase has the correct depends on" do
+    expect(page.depends_on).to eq([{ "joint_purchase?" => true }])
+  end
+
+  context "when sale is not a joint purchase" do
+    let(:joint_purchase) { false }
+
+    it "has the correct depends on" do
+      expect(page.depends_on).to eq([{ "joint_purchase?" => false }])
+    end
+  end
 end

spec/models/form/sales/questions/prevown_spec.rb

@@ -1,11 +1,12 @@
 require "rails_helper"
 
 RSpec.describe Form::Sales::Questions::Prevown, type: :model do
-  subject(:question) { described_class.new(question_id, question_definition, page) }
+  subject(:question) { described_class.new(question_id, question_definition, page, joint_purchase:) }
 
   let(:question_id) { nil }
   let(:question_definition) { nil }
   let(:page) { instance_double(Form::Page) }
+  let(:joint_purchase) { false }
 
   it "has correct page" do
     expect(question.page).to eq(page)
@@ -15,12 +16,26 @@ RSpec.describe Form::Sales::Questions::Prevown, type: :model do
     expect(question.id).to eq("prevown")
   end
 
-  it "has the correct header" do
-    expect(question.header).to eq("Has the buyer previously owned a property?")
+  context "when sale is not a joint purchase" do
+    it "has the correct header" do
+      expect(question.header).to eq("Has the buyer previously owned a property?")
+    end
+
+    it "has the correct check_answer_label" do
+      expect(question.check_answer_label).to eq("Buyer previously owned a property")
+    end
   end
 
-  it "has the correct check_answer_label" do
-    expect(question.check_answer_label).to eq("Buyers previously owned a property")
+  context "when sale is a joint purchase" do
+    let(:joint_purchase) { true }
+
+    it "has the correct header" do
+      expect(question.header).to eq("Have any of the buyers previously owned a property?")
+    end
+
+    it "has the correct check_answer_label" do
+      expect(question.check_answer_label).to eq("Buyers previously owned a property")
+    end
   end
 
   it "has the correct type" do

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

@@ -35,7 +35,8 @@ RSpec.describe Form::Sales::Subsections::IncomeBenefitsAndSavings, type: :model
             savings
             savings_value_check
             savings_deposit_value_check
-            previous_ownership
+            previous_ownership_joint_purchase
+            previous_ownership_not_joint_purchase
           ],
         )
       end
@@ -62,7 +63,8 @@ RSpec.describe Form::Sales::Subsections::IncomeBenefitsAndSavings, type: :model
             savings
             savings_value_check
             savings_deposit_value_check
-            previous_ownership
+            previous_ownership_joint_purchase
+            previous_ownership_not_joint_purchase
             previous_shared
           ],
         )