language: ruby
cache: bundler
rvm:
  - 2.3.4
before_install:
  - gem install bundler
before_script:
  - bundle exec appraisal update
script: bundle exec appraisal rspec

language: ruby
cache: bundler
rvm:
  - 2.2
  - 2.3.4
  - 2.4.1
before_install:
  - gem install bundler
before_script:
  - bundle exec appraisal update
script: bundle exec appraisal rspec

Test against MRI 2.2, 2.3, 2.4.
Test against MRI 2.2, 2.3, 2.4.
