sudo: false
language: ruby
rvm:
  - 2.4
services:
  - postgresql
addons:
  postgresql: "9.6"
before_install:
  - gem uninstall -v '>= 2' -i $(rvm gemdir)@global -ax bundler || true
  - gem install bundler -v 1.15.4
gemfile:
  - gemfiles/rails_5.0.gemfile
  - gemfiles/rails_5.1.gemfile
  - gemfiles/rails_5.2.gemfile
script: "bundle exec rake spec"