sync logic to determine the default value

Author: xabbuh

Tests/DependencyInjection/ConfigurationTest.php

@@ -17,6 +17,7 @@
 use Symfony\Bundle\FullStack;
 use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
 use Symfony\Component\Config\Definition\Processor;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\HttpClient\HttpClient;
 use Symfony\Component\Lock\Store\SemaphoreStore;
 use Symfony\Component\Mailer\Mailer;
@@ -496,7 +497,7 @@ protected static function getBundleDefaultConfig()
                 'directory' => '%kernel.cache_dir%/pools',
                 'default_redis_provider' => 'redis://localhost',
                 'default_memcached_provider' => 'memcached://localhost',
-                'default_pdo_provider' => class_exists(Connection::class) ? 'database_connection' : null,
+                'default_pdo_provider' => ContainerBuilder::willBeAvailable('doctrine/dbal', Connection::class, ['symfony/framework-bundle']) ? 'database_connection' : null,
                 'prefix_seed' => '_%kernel.project_dir%.%kernel.container_class%',
             ],
             'workflows' => [