Starting to get the tests in and working

app/models/caf.rb

@@ -1,3 +1,6 @@
 class Caf < ApplicationRecord
   belongs_to :company
+
+  validates :name, presence: true
+  validates :name, uniqueness: { scope: :company_id, message: "should be unique to the company"}
 end

test/fixtures/cafs.yml

@@ -1,11 +1,11 @@
 # Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
-#
-# one:
-#   company: one
-#   name: MyString1
-#   description: MyText1
-#
-# two:
-#   company: two
-#   name: MyString2
-#   description: MyText2
+
+one:
+  company: one
+  name: HiddenAgendaCAF
+  description: MyText1
+
+two:
+  company: two
+  name: CaudleMotorsportCAF
+  description: MyText2

test/fixtures/companies.yml

@@ -1,7 +1,7 @@
 # Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
 
-# one:
-#   name: HiddenAgendaLtd
-#
-# two:
-#   name: CaudleMotorsports
+one:
+  name: HiddenAgendaLtd
+
+two:
+  name: CaudleMotorsports

test/models/caf_test.rb

@@ -1,7 +1,14 @@
 require "test_helper"
 
 class CafTest < ActiveSupport::TestCase
-  # test "the truth" do
-  #   assert true
-  # end
+  test "name_unique_per_company" do
+     company = Company.where(name: "HiddenAgendaLtd").first
+     c = company.cafs.new(name: "HiddenAgendaCAF")
+     assert !c.save
+   end
+
+   test "name cant be blank" do
+     c = Caf.new
+     assert !c.save
+   end
 end