How to Add Headless Functionality to My Cucumber Testing Stack

  • Install these packages

      $ sudo apt-get install xvfb         ;# a framebuffer, the magic behind headless
  $ sudo apt-get install firefox      
  $ sudo apt-get install ffmpeg       ;# take care of video conversion

  • In a CI script, do this:

      #!/bin/bash
  echo "gem 'headless'" >> ./Gemfile
  read -d '' cucumber_append <<EOF

  if Capybara.current_driver == :selenium

    require 'headless'
    headless = Headless.new(:dimentions => "1366x768x24")
    headless.start

    at_exit do
      headless.destroy
    end

    Before do
      headless.video.start_capture
    end

    After do |scenario|
      if scenario.failed?
        headless.video.stop_and_save(video_path(scenario))
      else
        headless.video.stop_and_discard
      end
    end

    def video_path(scenario)
      "#{scenario.name.split.join("_")}.mov"
    end

  end
  EOF
  echo "" >> ./features/support/env.rb
  echo "$cucumber_append" >> ./features/support/env.rb
  echo "" >> ./Gemfile
  echo "gem 'capistrano_colors'" >> ./Gemfile

  rvm use 1.9.3-p286
  bundle install
  bundle exec rake db:migrate RAILS_ENV=test

  #bundle exec cucumber features/userstory/a -r features/
  bundle exec cucumber --color