dist: trusty
language: php
php:
  - 5.4
  - 5.5
  - 5.6
  - 7.0
  - 7.1
cache:
  directories:
    - ./vendor/
before_script:
  - travis_retry composer install --no-interaction --no-suggest --prefer-source
script:
  - composer run tests
matrix:
  fast_finish: true