Checks if at least valid class names are provided on infrastructure creation.
Fail fast if that is not the case (most probably misspelled or class loader not working as expected).
Coverage remained the same at 100.0% when pulling e2c73c48c087528c3b093b90c876ee97e9dee157 on feature/check_entity_class into 162f1c95d0de492cae7a4701cee60631f16a65a1 on master.
Checks if at least valid class names are provided on infrastructure creation. Fail fast if that is not the case (most probably misspelled or class loader not working as expected).