# Configure db connection at config/environments/qa.yml like rails:# db:# adapter: postgresql# host: your.database.host# username: username# password: password# database: databaserequire'active_record'require'lopata/active_record'classUser<ActiveRecord::Base;endLopata.define'User creation'dosetupdo@user=User.create!(username:'testuser')end# Remove user from database after scenariocleanup:userit'works'doexpect(@user).to_notbe_nilendend