Add rspec and request tests

Gemfile

@@ -50,6 +50,9 @@ gem "bootsnap", require: false
 group :development, :test do
   # See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem
   gem "debug", platforms: %i[ mri windows ]
+  gem "rspec-rails"
+  gem "rails-controller-testing"
+  gem "factory_bot_rails"
 end
 
 group :development do