language: ruby
cache: bundler

services:
  - redis-server

before_script:
  - gem update --system
  - gem install bundler

matrix:
  include:
    - rvm: 2.3
    - rvm: 2.4
    - rvm: 2.5
    - rvm: jruby-head
      env: JRUBY_OPTS="--debug -X+O"
    - rvm: ruby-head
    - rvm: rbx-3
  allow_failures:
    - rvm: ruby-head
    - rvm: jruby-head
    - rvm: rbx-3