No, you can't pass the whole test suite if the sqlite extension is not installed on the system, since sqlite [is the default driver](https://github.com/KnpLabs/DoctrineBehaviors/blob/d9307614c62d486aeb41967c084b81f1655a034f/tests/Knp/DoctrineBehaviors/ORM/EntityManagerProvider.php#L33) for your EntityManagerProvider. But I guess you need the pgsql extension too :)