language: ruby
rvm:
  - 2.1.8
  - 2.2.4
  - 2.3.0

gemfile:
  - gemfiles/rails_4.gemfile
  - gemfiles/rails_5.gemfile

matrix:
  exclude:
  - rvm: 2.1.8
    gemfile: gemfiles/rails_5.gemfile

script: "bundle exec rspec"