Add number joint buyers page and question

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

@@ -0,0 +1,18 @@
+class Form::Sales::Pages::NumberJointBuyers < ::Form::Page
+  def initialize(id, hsh, subsection)
+    super
+    @id = "number_joint_buyers"
+    @header = ""
+    @description = ""
+    @subsection = subsection
+    @depends_on = [{
+      "jointpur" => 1,
+    }]
+  end
+
+  def questions
+    @questions ||= [
+      Form::Sales::Questions::NumberJointBuyers.new(nil, nil, self),
+    ]
+  end
+end

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

@@ -0,0 +1,18 @@
+class Form::Sales::Questions::NumberJointBuyers < ::Form::Question
+  def initialize(id, hsh, page)
+    super
+    @id = "jointmore"
+    @check_answer_label = "More than 2 joint buyers"
+    @header = "Are there more than 2 joint buyers of this property?"
+    @hint_text = "You should still try to answer all questions even if the buyer wasn't interviewed in person"
+    @type = "radio"
+    @answer_options = ANSWER_OPTIONS
+    @page = page
+  end
+
+  ANSWER_OPTIONS = {
+    "1" => { "value" => "Yes" },
+    "2" => { "value" => "No" },
+    "3" => { "value" => "Don’t know" },
+  }.freeze
+end

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

@@ -17,6 +17,7 @@ class Form::Sales::Subsections::Setup < ::Form::Subsection
       Form::Sales::Pages::DiscountedOwnershipType.new(nil, nil, self),
       Form::Sales::Pages::OutrightOwnershipType.new(nil, nil, self),
       Form::Sales::Pages::JointPurchase.new(nil, nil, self),
+      Form::Sales::Pages::NumberJointBuyers.new(nil, nil, self),
     ]
   end
 end

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

@@ -0,0 +1,33 @@
+require "rails_helper"
+
+RSpec.describe Form::Sales::Pages::NumberJointBuyers, type: :model do
+  subject(:page) { described_class.new(page_id, page_definition, subsection) }
+
+  let(:page_id) { nil }
+  let(:page_definition) { nil }
+  let(:subsection) { instance_double(Form::Subsection) }
+
+  it "has correct subsection" do
+    expect(page.subsection).to eq(subsection)
+  end
+
+  it "has correct questions" do
+    expect(page.questions.map(&:id)).to eq(%w[jointmore])
+  end
+
+  it "has the correct id" do
+    expect(page.id).to eq("number_joint_buyers")
+  end
+
+  it "has the correct header" do
+    expect(page.header).to eq("")
+  end
+
+  it "has the correct description" do
+    expect(page.description).to eq("")
+  end
+
+  it "has correct depends_on" do
+    expect(page.depends_on).to eq([{ "jointpur" => 1 }])
+  end
+end

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

@@ -0,0 +1,45 @@
+require "rails_helper"
+
+RSpec.describe Form::Sales::Questions::NumberJointBuyers, type: :model do
+  subject(:question) { described_class.new(question_id, question_definition, page) }
+
+  let(:question_id) { nil }
+  let(:question_definition) { nil }
+  let(:page) { instance_double(Form::Page) }
+
+  it "has correct page" do
+    expect(question.page).to eq(page)
+  end
+
+  it "has the correct id" do
+    expect(question.id).to eq("jointmore")
+  end
+
+  it "has the correct header" do
+    expect(question.header).to eq("Are there more than 2 joint buyers of this property?")
+  end
+
+  it "has the correct check_answer_label" do
+    expect(question.check_answer_label).to eq("More than 2 joint buyers")
+  end
+
+  it "has the correct type" do
+    expect(question.type).to eq("radio")
+  end
+
+  it "is not marked as derived" do
+    expect(question.derived?).to be false
+  end
+
+  it "has the correct hint_text" do
+    expect(question.hint_text).to eq("You should still try to answer all questions even if the buyer wasn't interviewed in person")
+  end
+
+  it "has the correct answer_options" do
+    expect(question.answer_options).to eq({
+      "1" => { "value" => "Yes" },
+      "2" => { "value" => "No" },
+      "3" => { "value" => "Don’t know" },
+    })
+  end
+end

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

@@ -13,7 +13,7 @@ RSpec.describe Form::Sales::Subsections::Setup, type: :model do
 
   it "has correct pages" do
     expect(setup.pages.map(&:id)).to eq(
-      %w[organisation created_by completion_date purchaser_code ownership_scheme shared_ownership_type discounted_ownership_type outright_ownership_type joint_purchase],
+      %w[organisation created_by completion_date purchaser_code ownership_scheme shared_ownership_type discounted_ownership_type outright_ownership_type joint_purchase number_joint_buyers],
     )
   end