gem 'test-unit', '>= 0', group: %i(development)
gem 'rake', '>= 0', group: %i(development)
gem 'simplecov', '>= 0', group: %i(development)
gem 'bundler', '>= 0', group: %i(development)
gem 'irb', '>= 1.3.1', group: %i(development)
gem 'byebug', '>= 0', group: %i(development)
gem 'benchmark-ips', '>= 0', group: %i(development)
gem 'power_assert', '~> 2.0.1'
