module Cucumber::Constantize

def underscore(camel_cased_word)
  camel_cased_word.to_s.gsub(/::/, '/')
                  .gsub(/([A-Z]+)([A-Z][a-z])/, '\1_\2')
                  .gsub(/([a-z\d])([A-Z])/, '\1_\2')
                  .tr('-', '_')
                  .downcase
end