capybara_helper.rb

Capybara.register_driver :chrome do |app|
  require 'selenium-webdriver'
  client = Selenium::WebDriver::Remote::Http::Default.new
  opts = {
    chrome_options: {
      # Canary has a couple of benefits right now - eg screenshots actually work.
      binary: "/Applications/Google Chrome Canary.app/Contents/MacOS/Google Chrome Canary"
      args: %w[headless]
    }
  }
  if ENV['CAPYBARA_DEBUG']
    opts[:loggingPrefs] = { browser: 'ALL', driver: 'ALL' }
  end

  caps = Selenium::WebDriver::Remote::Capabilities.chrome(opts)
  Capybara::Selenium::Driver.new(app, browser: :chrome,
                                 http_client: client,
                                 driver_opts: { log_path: Rails.root.join("log/test-chrome-#{ENV['TEST_ENV_NUMBER']}.log") },
                                 desired_capabilities: caps)
end