begin
  require 'pathname'
  require 'yardstick/rake/measurement'
  require 'yardstick/rake/verify'

  # yardstick_measure task
  Yardstick::Rake::Measurement.new

  # verify_measurements task
  Yardstick::Rake::Verify.new do |verify|
    verify.threshold = 100
  end
rescue LoadError
  %w[ yardstick_measure verify_measurements ].each do |name|
    task name.to_s do
      abort "Yardstick is not available. In order to run #{name}, you must: gem install yardstick"
    end
  end
end