unused_steps_formatter.rb

# run your test suite with this formatter to print out all undefined steps
# Good for finding old and unused steps after a lot of refactoring !

require 'cucumber'
require 'cucumber/formatter/usage'

class UnusedSteps < Cucumber::Formatter::Usage

  def print_summary(features)
    add_unused_stepdefs
    aggregate_info

    if @options[:dry_run]
      keys = @stepdef_to_match.keys.sort {|a,b| a.regexp_source <=> b.regexp_source}
    else
      keys = @stepdef_to_match.keys.sort {|a,b| a.mean_duration <=> b.mean_duration}.reverse
    end

    keys.each do |stepdef_key|
      if !@stepdef_to_match[stepdef_key].any?
        print_step_definition(stepdef_key)
      end
    end
    @io.puts
  end
end