language: ruby
cache: bundler
rvm:
  - ruby-head
  - 2.6.3
  - 2.5.5
before_install:
  - gem update --system
  - gem install bundler
os:
  - linux
matrix:
  fast_finish: true
  allow_failures:
    - rvm: ruby-head
env:
  global:
    - TEST=true
script: bundle exec rake test