language: ruby
before_install:
  - gem uninstall -v '>= 2' -i $(rvm gemdir)@global -ax bundler || true
  - gem install bundler -v '<2'
rvm:
  - 2.3
  - 2.4
  - 2.5
script: bundle exec rake
env:
  - RAILS_VERSION=6.0.0.rc1
  - RAILS_VERSION=5.2.0
  - RAILS_VERSION=5.1.5
  - RAILS_VERSION=5.0.6
  - RAILS_VERSION=4.2.10
services:
  - mysql