factory for add an image to a spree product

product_factory.rb

FactoryGirl.define do
  factory :product_with_image, parent: :product do
    after :create do |p|
      image = File.open("spec/support/images/image.jpg")
      p.images.create!(attachment: image, alt: p.name) 
    end
  end
end

in collaboration with @edipox