language: ruby
gemfile:
  - gemfiles/rails_5.0.gemfile
  - gemfiles/rails_5.1.gemfile
rvm:
  - 2.2.8
  - 2.3.6
  - 2.4.3
before_install: gem install bundler -v 1.12.4
script:
  - bundle exec rubocop
  - bundle exec rspec