Carregar FactoryGirl no console Rails

Simples, mas raramente usado o suficiente para ser esquecido.

$ rails c
...
[1] pry(main)> require 'factory_girl'
=> true
[2] pry(main)> FactoryGirl.find_definitions
...
[3] pry(main)> FactoryGirl.create :my_thing

Magia!