php54:
    image: ardydedase/phpunit-php54
    volumes: 
    - .:/app
    working_dir: /app
php55:
    image: ardydedase/phpunit-php55
    volumes: 
    - .:/app
    working_dir: /app
php56:
    image: phpunit56
    volumes: 
    - .:/app
    working_dir: /app
hhvm:
    image: ardydedase/phpunit-hhvm
    volumes: 
    - .:/app
    working_dir: /app