API documentation and spec setup

spec/factories/doorkeeper.rb

@@ -0,0 +1,15 @@
+require 'factory_bot'
+require 'doorkeeper'
+
+FactoryBot.define do
+
+  factory :oauth2_application, class: Doorkeeper::Application do
+    name { Faker::App.name }
+    redirect_uri 'https://example.com:1234/app'
+  end
+
+  factory :oauth2_access_token, class: Doorkeeper::AccessToken do
+    application factory: :oauth2_application
+  end
+
+end