look for phpunit with find (installed by composer)

.gitlab-ci.yml

@@ -27,6 +27,7 @@ unit_tests:
   - curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
   - composer install
   script:
+  - find -ipath "*phpunit*"
   - phpunit tests/*.php
   tags:
   - spes