Feature Test with Headless Chrome and Capybara

# install the latest version
brew install chromedriver
# update existing chrome driver
brew upgrade chromedriver

chromedriver -v
# It should display the latest/specify version like so
#=> ChromeDriver 2.33.506106 (8a06c39c4582fbfbab6966dbb1c38a9173bfb1a2)

# frozen_string_literal: true

require 'capybara/rspec'

IS_DEBUG_MODE = -> { ENV['DEBUG'].present? ? :chrome : :headless_chrome }

Capybara.register_driver :chrome do |app|
  Capybara::Selenium::Driver.new(app, browser: :chrome)
end

Capybara.register_driver :headless_chrome do |app|
  options = ::Selenium::WebDriver::Chrome::Options.new
  options.add_argument 'headless'
  Capybara::Selenium::Driver.new app, browser: :chrome, options: options
end

Capybara.configure do |config|
  config.default_max_wait_time = 30
  config.default_driver = IS_DEBUG_MODE.call
  config.javascript_driver = IS_DEBUG_MODE.call
end

Update 4/10/17
RSpec has just released 3.7 version last month and the configuration for integration test is a lot cleaner. Here’s the snippet:

  # System tests use Rack::Test for non JS test and headless Chrome for JS specs
  config.before(:each, type: :system) do
    driven_by :rack_test
  end

  config.before(:each, type: :system, js: true) do
    driven_by :selenium_chrome_headless
  end

dependencies:
  pre:
    # install chrome
    - wget -N https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb -P ~/
    - sudo dpkg -i --force-depends ~/google-chrome-stable_current_amd64.deb
    - sudo apt-get -f install -y
    - sudo dpkg -i --force-depends ~/google-chrome-stable_current_amd64.deb
    - sudo rm /usr/local/bin/chromedriver
    # install chromedriver
    - wget -N http://chromedriver.storage.googleapis.com/$CHROME_DRIVER_VERSION/chromedriver_linux64.zip -P ~/
    - unzip ~/chromedriver_linux64.zip -d ~/
    - rm ~/chromedriver_linux64.zip
    - sudo mv -f ~/chromedriver /usr/local/bin/chromedriver
    - sudo chown root:root /usr/local/bin/chromedriver
    - sudo chmod 0755 /usr/local/bin/chromedriver