【Ruby on Rails】RSpecとFactoryBotとShoulda MatchersとCapybaraを導入メモ

RSpec設定

Gemfile

group :test do
  gem 'rspec-rails'
end

rails g rspec:install

.rspec

--require spec_helper
--format documentation

config/application.rb

config.generators do |g|
  g.test_framework :rspec,
                   fixtures: false,
                   controller_specs: false,
                   view_specs: false,
                   helper_specs: false,
                   decorator_specs: false,
                   routing_specs: false
end

Spring設定

Gemfile

group :test do
  gem 'spring-commands-rspec'
end

spring binstub rspec

config/environments/test.rb

  config.cache_classes = false

FactoryBot設定

Gemfile

group :test do
  gem 'factory_bot_rails'
end

spec/support/factory_bot.rb

RSpec.configure do |config|
  config.include FactoryBot::Syntax::Methods
end

spec/rails_helper.rb

require "support/factory_bot"

config.before(:all) do
  FactoryBot.reload
end

Shoulda Matcher設定

Gemfile

group :test do
  gem 'shoulda-matchers'
end

spec/support/shoulda_matchers.rb

Shoulda::Matchers.configure do |config|
  config.integrate do |with|
    with.test_framework :rspec
    with.library :rails
  end
end

spec/rails_helper.rb

require "support/shoulda_matchers"

FFaker設定

Gemfile

group :test do 
  gem 'ffaker'
end

Fuubar設定

Gemfile

group :test do
  gem 'fuubar'
end

.rspec

--format Fuubar
--color

system spec設定

Gemfile

group :test do
  gem 'capybara'
  gem 'webdrivers'
end

spec/rails_helper.rb

require 'capybara/rspec'
require 'support/capybara'

spec_support/capybara.rb

RSpec.configure do |config|
  # Delete screenshot files before testing
  FileUtils.rm_rf(Dir[Rails.root.join('tmp/screenshots/*')], secure: true)

  # Show screenshot when fail
  ENV['RAILS_SYSTEM_TESTING_SCREENSHOT'] = 'inline'

  # Driver setup
  config.before(:each, type: :system) do
    driven_by :selenium_chrome_headless
  end
end

Capybara.register_driver :selenium_chrome_headless do |app|
  options = Selenium::WebDriver::Chrome::Options.new
  %w[
    headless
    window-size=1600x900
    no-sandbox
    disable-gpu
  ].each { |arg| options.add_argument(arg) }
  Capybara::Selenium::Driver.new(app, browser: :chrome, options: options)
end

system specでユーザーをログインする

Gemfile

group :test 
  gem 'rack_session_access'
end

config/environments/test.rb

  config.middleware.use RackSessionAccess::Middleware

spec/rails_helper.rb

  require 'rack_session_access/capybara'

ユーザーIDのセッションを設定する：

xxx_spec.rb

page.set_rack_session(user_id: user.id)

# deviseを使う場合：
page.set_rack_session('warden.user.user.key' => User.serialize_into_session(user))