language: php

sudo: false

php:
  - 5.5
  - 5.6
  - 7.0

matrix:
  fast_finish: true
  include:
    - php: 5.5
      env: PREFER_LOWEST="--prefer-lowest"

pre_install:
  - phpenv config-rm xdebug.ini
install:
  - composer update --prefer-source --no-interaction $PREFER_LOWEST
  - if [ -n "$PREFER_LOWEST" ];then composer update phpunit/phpunit --prefer-source --no-interaction --with-dependencies;fi