language: ruby

rvm:
  - 2.1
  - 2.2.5
  - 2.3.1
  - 2.4.2
  - ruby-head

branches:
  only:
    - master
    - v0.12

gemfile:
  - Gemfile

matrix:
  allow_failures:
    - rvm: ruby-head

before_install: gem update bundler
script: bundle exec rake test