# Available ruby versions: http://rubies.travis-ci.org/

language: ruby

os:
  - linux

rvm:
  - '2.1' # latest 2.1.x
  - '2.2.6'
  - '2.3.3'
  - '2.4.0'
  - 'ruby-head'

script:
  bundle exec rspec

before_install:
  # bundler installation needed for jruby-head
  # https://github.com/travis-ci/travis-ci/issues/5861
  - gem install bundler

# Travis OS X support is pretty janky. These are some hacks to include tests
# only on versions that actually work.
# (last tested: 2016-11)
matrix:
  # exclude: {}
  # include: {}

  allow_failures:
    - rvm: 'ruby-head'

  # return results as soon as mandatory versions are done
  fast_finish: true

sudo: false