language: python
install:
  - pip install tox
script:
  - make test-tox
services:
  - redis-server

language: python
sudo: required
services:
  - docker
env:
  matrix:
    - REDIS_VERSION=2.6
    - REDIS_VERSION=2.8
    - REDIS_VERSION=3.0
before_install:
  - docker pull redis:$REDIS_VERSION
  - docker run -d -p 6379:6379 redis
install:
  - pip install tox
script:
  - make test-tox

Test against multiple redis versions.
Test against multiple redis versions.