language: php
php:
  - 5.4
  - 5.3
before_script:
  - composer install --dev --prefer-source --no-interaction
script:
  - phpunit --coverage-text

language: php
php:
  - 5.4
  - 5.3
  - hhvm
before_script:
  - composer install --dev --prefer-source --no-interaction
script:
  - phpunit --coverage-text

Add (failing) hhvm to test matrix
Add (failing) hhvm to test matrix