language: php

cache:
  directories:
    - $HOME/.composer/cache

php:
  - '5.4'
  - '5.5'
  - '5.6'
  - '7.0'
  - '7.1'
  - '7.2'

before_script:
    - flags="-o"
    - composer install $flags

script: php ./vendor/phpunit/phpunit/phpunit -c phpunit.xml.dist