1. require 'fileutils'
  2. FileUtils.rm_r '02_hotel_rate_calculator' rescue nil
  3. FileUtils.rm_r '03_ring' rescue nil
  4. FileUtils.rm_r '04_greed_scoring' rescue nil
  5. FileUtils.rm_r '05_mocking' rescue nil
  6. FileUtils.rm_r '06_model_testing' rescue nil
  7. FileUtils.rm_r '07_controller_testing' rescue nil
  8. FileUtils.rm_r '08_coverage' rescue nil
  9. FileUtils.rm_r '09_integration_testing' rescue nil