Rails factory bot Document

# Gemfile
group :development, :test do
  gem ‘factory_bot_rails‘
end

#spec/rails_helper.rb
RSpec.configure do |config|
  config.include FactoryBot::Syntax::Methods
end

spec/factories/

FactoryBot.define do
  factory :book do
    title { "factory sample" }
  end
  factory :sample, class: Book do
    title { "sample" }
  end
end

*_list(factory, count, attributes)

books = create_list(:book, 10, price: 9999)

sequence :name do |i|
    ...
end

factory :sample do
    attribute { generate :name }
end

FactoryBot.define do
  sequence :isbn do |p|
    "UUID-#{11111*p}"
  end

  factory :book do
    title { "factory sample" }
    isbn { generate :isbn }
  end
end

association :关联名, factory: ...[, strategy: :build][, attributes]

FactoryBot.define do
  sequence :review_bodies do |i|
    "review-#{i}"
  end
  factory :review do
    body { generate :review_bodies }
    user
    book
  end
end

factory :sample, class: User, aliases: [...] do
    ...
end

add_attribute(name) { ... }

transient do
    sample { "sample" }
    ...
end

FactoryBot.define do
  sequence :review_bodies do |i|
    "review-#{i}"
  end
  factory :review do
    transient do
      comment { "" }
    end
    body { comment.blank? ? generate(:review_bodies) : comment }
    user
    book
  end
end