test: add tests

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

@@ -2,7 +2,7 @@ class Form::Sales::Questions::MortgageLength < ::Form::Question
   def initialize(id, hsh, page)
     super
     @id = "mortlen"
-    @check_answer_label = " Length of mortgage"
+    @check_answer_label = "Length of mortgage"
     @header = "What is the length of the mortgage?"
     @type = "numeric"
     @page = page

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

@@ -0,0 +1,33 @@
+require "rails_helper"
+
+RSpec.describe Form::Sales::Pages::MortgageLength, 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[mortlen])
+  end
+
+  it "has the correct id" do
+    expect(page.id).to eq(nil)
+  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 be_nil
+  end
+end

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

@@ -0,0 +1,49 @@
+require "rails_helper"
+
+RSpec.describe Form::Sales::Questions::MortgageLength, 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("mortlen")
+  end
+
+  it "has the correct header" do
+    expect(question.header).to eq("What is the length of the mortgage?")
+  end
+
+  it "has the correct check_answer_label" do
+    expect(question.check_answer_label).to eq("Length of mortgage")
+  end
+
+  it "has the correct type" do
+    expect(question.type).to eq("numeric")
+  end
+
+  it "is not marked as derived" do
+    expect(question.derived?).to be false
+  end
+
+  it "has the correct hint" do
+    expect(question.hint_text).to eq("")
+  end
+
+  it "has correct width" do
+    expect(question.width).to eq(5)
+  end
+
+  it "has correct suffix" do
+    expect(question.suffix).to eq(" years")
+  end
+
+  it "has correct min" do
+    expect(question.min).to eq(0)
+  end
+end