gem 'minitest', '~> 5', group: %i(development)
gem 'rake-compiler', '>= 0.9', '< 2.0', group: %i(development)
gem 'rubocop', '< 2'
gem 'rubocop-minitest', '< 1'
gem 'test-unit', '~> 3.0', group: %i(development)
gem 'oj', '= 3.16.4'
