https://symfony.com/doc/current/testing.html lacks information of say ``` class UnderstandSymfonyTest extends KernelTestCase { ... self::getContainer()->set(IDevJobService::class, $mockDevJobService); ... ``` and that all services need to be set to public in test to use them e.g. ``` when@test: services: App\Service\Concerns\IDevJobService: class: App\Tests\Classes\TestDevJobService autowire: true public: true ```