In this case, someone else wrote the tests: Exercism PHP. These run in phpunit
My solution code is mostly in the Service directory of the ExercismBundle.
PHPUnit installed (Installed twice: due to an error message during Composer install
I reinstalled by the wget
way)
This was built with only the skeleton install of Symfony.
PHPUnit useage:
./vendor/bin/phpunit src/ExercismBundle/Tests/hamming_test.php