FactoryGirl.define do factory :message, :class => Carrier::Message do sender { singleton(:user).id } recipients { [ singleton(:second_user).id, singleton(:third_user).id ] } content "content of test message" subject "subject of test message" end factory :second_message, :class => Carrier::Message do sender_user { |su| singleton(:second_user) } recipients { |r| [ singleton(:user).id ] } content "content of test message" subject "subject of test message" end factory :third_message, :class => Carrier::Message do sender_user { |su| singleton(:user) } recipients { |r| [ singleton(:second_user).id ] } content "content of test message" subject "subject of test message" end end