FactoryGirl.define do factory :entry, :class => Borutus::Entry do |entry| entry.description 'factory description' factory :entry_with_credit_and_debit, :class => Borutus::Entry do |entry_cd| entry_cd.after_build do |t| t.credit_amounts << FactoryGirl.build(:credit_amount, :entry => t) t.debit_amounts << FactoryGirl.build(:debit_amount, :entry => t) end end end end