language: ruby
rvm:
  - 2.2

before_install:
  - gem update --system
  - gem update bundler

script: bundle exec rake test
cache: bundler
dist: trusty

language: ruby
rvm:
  - 2.4
  - 2.3
  - 2.2

before_install:
  - gem update --system
  - gem update bundler

script: bundle exec rake test
cache: bundler
dist: trusty

Test on Ruby 2.3 and 2.4
Test on Ruby 2.3 and 2.4
