How to write test for this in symfony?

In my Symfony project, I want to do this task :

We need to find a way to add a test to verify all the entities added works fine.

You’ll need to create a new test class:tests/AppBundle/Command/EntitiesAndAnnotationsCheckCommandTest.php

This test class will have a test that will run the doctrine:schema:update --dump-sql command.

We need to test that this command ends up properly (does not ends with error)Also check that the command output has no exception nor error on its description.