language: ruby
rvm:
  - 2.2.3
before_install: gem install bundler -v 1.11.2
gemfile:
  - gemfiles/rails_4.2_sqlite.gemfile
  - gemfiles/rails_4.2_postgres.gemfile
  - gemfiles/rails_4.2_mysql.gemfile
  - gemfiles/rails_5_sqlite.gemfile
  - gemfiles/rails_5_postgres.gemfile
  - gemfiles/rails_5_mysql.gemfile