For a not-clear reason, I can't properly drop the current database. Even if Doctrine made a special case for that (https://github.com/doctrine/dbal/pull/849).
So instead of trying crazy things to achieve the test, better way is to skip test (too much wasted days ..)
Ensure that created use during install command will always be unique.
We assume that the install command must be run to initialize a wallabag instance. NEVER to add more user.
Also, use a better way to retrieve the real name of the database and not the one defined in parameters.yml (which isn't the same for test envi because the dbname isn't defined in parameters.yml but directly in config_test.yml)
They are god damn too long to execute because it launch external command (mostly related to doctrine).
So I've added a PHPUnit @group (`command-doctrine`) so that we can avoid launching them on a regular basis, like that:
`phpunit --exclude-group command-doctrine`
