source 'https://rubygems.org' gemspec gem 'rake' group :test do gem 'coveralls', require: false gem 'rspec' end group :development do gem 'mutant-rspec' end group :test, :development do gem 'rubocop', '~> 0.51.0' end group :guard do gem 'guard' gem 'guard-rspec' end platform :rbx do gem 'json' gem 'rubysl' end