[Ruby][FactoryBot] オリジナルのヘルパメソッドを定義する

方法

FactoryBot::DefinitionProxy を拡張する。

spec/support/factory_helpers.rb

module FactoryHelpers
  def random_name
    name { %w[ゆの 宮子 沙英 ヒロ].sample }
  end
end

FactoryBot::DefinitionProxy.include(FactoryHelpers)

spec/factories/girls.rb

FactoryBot.define do
  factory :girl do
    random_name
    age 16
  end
end

参考

• Add possibility to include helper methods into FactoryGirl to be able to use them on factory definition
• How to include a module in a factory_girl factory?