gem 'capybara'
gem 'selenium-webdriver'
gem 'webdrivers'

Capybara.register_driver :headless_chrome do |app|
  options = Selenium::WebDriver::Chrome::Options.new
  options.add_argument('--headless')
  options.add_argument('--disable-gpu')
  options.add_argument('--window-size=800,600')

  Capybara::Selenium::Driver.new(app, browser: :chrome, options: options)
end

Capybara.configure do |config|
  config.default_max_wait_time = 15
  config.default_driver = :headless_chrome
end

CircleaCI를 이용한 Artifacts

      # collect reports
      - store_test_results:
          path: /tmp/test-results
      - store_artifacts:
          path: /tmp/test-results
          destination: test-result

def take_screenshot
  page.save_screenshot "/tmp/test-results/screenshot-#{DateTime.now}.png"
end

테스트 예

RSpec.feature "User", type: :feature do
  background do
    create(:activated_user)
  end

  scenario 'can get logged in if activated' do
    visit root_path
    take_screenshot # 遷移直後にスクショをとる
    click_on 'Log in'
    expect(page).to have_content 'Login to Slip.it'

    fill_in 'session_email', with: '[email protected]'
    fill_in 'session_password', with: 'password'
    click_on 'Login'
    expect(page).to have_content 'Add a new bookmark'
  end
end