diff --git a/src/Services/DatabaseBackup/AbstractDatabaseBackup.php b/src/Services/DatabaseBackup/AbstractDatabaseBackup.php
index fb8f768a..52623cca 100644
--- a/src/Services/DatabaseBackup/AbstractDatabaseBackup.php
+++ b/src/Services/DatabaseBackup/AbstractDatabaseBackup.php
@@ -11,7 +11,6 @@
 
 namespace Liip\FunctionalTestBundle\Services\DatabaseBackup;
 
-use Doctrine\DBAL\Connection;
 use Liip\FunctionalTestBundle\Services\FixturesLoaderFactory;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
@@ -24,11 +23,6 @@ abstract class AbstractDatabaseBackup implements DatabaseBackupInterface
 
     protected $fixturesLoaderFactory;
 
-    /**
-     * @var Connection
-     */
-    protected $connection;
-
     /**
      * @var array
      */
@@ -47,9 +41,8 @@ public function __construct(ContainerInterface $container, FixturesLoaderFactory
         $this->fixturesLoaderFactory = $fixturesLoaderFactory;
     }
 
-    public function init(Connection $connection, array $metadatas, array $classNames): void
+    public function init(array $metadatas, array $classNames): void
     {
-        $this->connection = $connection;
         $this->metadatas = $metadatas;
         $this->classNames = $classNames;
     }
diff --git a/src/Services/DatabaseBackup/DatabaseBackupInterface.php b/src/Services/DatabaseBackup/DatabaseBackupInterface.php
index c281283d..a5434a44 100644
--- a/src/Services/DatabaseBackup/DatabaseBackupInterface.php
+++ b/src/Services/DatabaseBackup/DatabaseBackupInterface.php
@@ -12,14 +12,13 @@
 namespace Liip\FunctionalTestBundle\Services\DatabaseBackup;
 
 use Doctrine\Common\DataFixtures\Executor\AbstractExecutor;
-use Doctrine\DBAL\Connection;
 
 /**
  * @author Aleksey Tupichenkov <alekseytupichenkov@gmail.com>
  */
 interface DatabaseBackupInterface
 {
-    public function init(Connection $connection, array $metadatas, array $classNames): void;
+    public function init(array $metadatas, array $classNames): void;
 
     public function getBackupFilePath(): string;
 
diff --git a/src/Services/DatabaseBackup/SqliteDatabaseBackup.php b/src/Services/DatabaseBackup/SqliteDatabaseBackup.php
index 255e8a07..14911143 100644
--- a/src/Services/DatabaseBackup/SqliteDatabaseBackup.php
+++ b/src/Services/DatabaseBackup/SqliteDatabaseBackup.php
@@ -12,6 +12,8 @@
 namespace Liip\FunctionalTestBundle\Services\DatabaseBackup;
 
 use Doctrine\Common\DataFixtures\Executor\AbstractExecutor;
+use Doctrine\DBAL\Connection;
+use Doctrine\ORM\EntityManager;
 
 /**
  * @author Aleksey Tupichenkov <alekseytupichenkov@gmail.com>
@@ -23,9 +25,9 @@ public function getBackupFilePath(): string
         return $this->container->getParameter('kernel.cache_dir').'/test_sqlite_'.md5(serialize($this->metadatas).serialize($this->classNames)).'.db';
     }
 
-    private function getDatabaseName(): string
+    private function getDatabaseName(Connection $connection): string
     {
-        $params = $this->connection->getParams();
+        $params = $connection->getParams();
         if (isset($params['master'])) {
             $params = $params['master'];
         }
@@ -48,13 +50,21 @@ public function isBackupActual(): bool
 
     public function backup(AbstractExecutor $executor): void
     {
+        /** @var EntityManager $em */
+        $em = $executor->getReferenceRepository()->getManager();
+        $connection = $em->getConnection();
+
         $executor->getReferenceRepository()->save($this->getBackupFilePath());
-        copy($this->getDatabaseName(), $this->getBackupFilePath());
+        copy($this->getDatabaseName($connection), $this->getBackupFilePath());
     }
 
     public function restore(AbstractExecutor $executor): void
     {
-        copy($this->getBackupFilePath(), $this->getDatabaseName());
+        /** @var EntityManager $em */
+        $em = $executor->getReferenceRepository()->getManager();
+        $connection = $em->getConnection();
+
+        copy($this->getBackupFilePath(), $this->getDatabaseName($connection));
         $executor->getReferenceRepository()->load($this->getBackupFilePath());
     }
 }
diff --git a/src/Services/DatabaseTools/AbstractDatabaseTool.php b/src/Services/DatabaseTools/AbstractDatabaseTool.php
index 6b1bba8f..15cd9e59 100644
--- a/src/Services/DatabaseTools/AbstractDatabaseTool.php
+++ b/src/Services/DatabaseTools/AbstractDatabaseTool.php
@@ -174,14 +174,16 @@ protected function locateResources(array $paths): array
 
     protected function getMetadatas(): array
     {
-        if (!isset(self::$cachedMetadatas[$this->omName])) {
-            self::$cachedMetadatas[$this->omName] = $this->om->getMetadataFactory()->getAllMetadata();
-            usort(self::$cachedMetadatas[$this->omName], function ($a, $b) {
+        $key = $this->getDriverName().$this->getType().$this->omName;
+
+        if (!isset(self::$cachedMetadatas[$key])) {
+            self::$cachedMetadatas[$key] = $this->om->getMetadataFactory()->getAllMetadata();
+            usort(self::$cachedMetadatas[$key], function ($a, $b) {
                 return strcmp($a->name, $b->name);
             });
         }
 
-        return self::$cachedMetadatas[$this->omName];
+        return self::$cachedMetadatas[$key];
     }
 
     public function setExcludedDoctrineTables(array $excludedDoctrineTables): void
diff --git a/src/Services/DatabaseTools/MongoDBDatabaseTool.php b/src/Services/DatabaseTools/MongoDBDatabaseTool.php
index e6940648..e752b8a3 100644
--- a/src/Services/DatabaseTools/MongoDBDatabaseTool.php
+++ b/src/Services/DatabaseTools/MongoDBDatabaseTool.php
@@ -21,6 +21,8 @@
  */
 class MongoDBDatabaseTool extends AbstractDatabaseTool
 {
+    protected static $databaseCreated = false;
+
     public function getType(): string
     {
         return 'MongoDB';
@@ -36,6 +38,16 @@ protected function getPurger(): MongoDBPurger
         return new MongoDBPurger();
     }
 
+    protected function createDatabaseOnce(): void
+    {
+        if (!self::$databaseCreated) {
+            $sm = $this->om->getSchemaManager();
+            $sm->createDatabases();
+            $sm->updateIndexes();
+            self::$databaseCreated = true;
+        }
+    }
+
     public function loadFixtures(array $classNames = [], bool $append = false): AbstractExecutor
     {
         $referenceRepository = new ProxyReferenceRepository($this->om);
@@ -45,9 +57,11 @@ public function loadFixtures(array $classNames = [], bool $append = false): Abst
             $cacheDriver->deleteAll();
         }
 
+        $this->createDatabaseOnce();
+
         $backupService = $this->getBackupService();
         if ($backupService) {
-            $backupService->init($this->connection, $this->getMetadatas(), $classNames);
+            $backupService->init($this->getMetadatas(), $classNames);
 
             if ($backupService->isBackupActual()) {
                 if (null !== $this->connection) {
diff --git a/src/Services/DatabaseTools/ORMDatabaseTool.php b/src/Services/DatabaseTools/ORMDatabaseTool.php
index cdf1870f..07055562 100644
--- a/src/Services/DatabaseTools/ORMDatabaseTool.php
+++ b/src/Services/DatabaseTools/ORMDatabaseTool.php
@@ -97,7 +97,7 @@ public function loadFixtures(array $classNames = [], bool $append = false): Abst
 
         $backupService = $this->getBackupService();
         if ($backupService) {
-            $backupService->init($this->connection, $this->getMetadatas(), $classNames);
+            $backupService->init($this->getMetadatas(), $classNames);
 
             if ($backupService->isBackupActual()) {
                 if (null !== $this->connection) {
diff --git a/src/Services/DatabaseTools/ORMSqliteDatabaseTool.php b/src/Services/DatabaseTools/ORMSqliteDatabaseTool.php
index d8b5f340..56e72bbb 100644
--- a/src/Services/DatabaseTools/ORMSqliteDatabaseTool.php
+++ b/src/Services/DatabaseTools/ORMSqliteDatabaseTool.php
@@ -36,7 +36,7 @@ public function loadFixtures(array $classNames = [], bool $append = false): Abst
 
         $backupService = $this->getBackupService();
         if ($backupService) {
-            $backupService->init($this->connection, $this->getMetadatas(), $classNames);
+            $backupService->init($this->getMetadatas(), $classNames);
 
             if ($backupService->isBackupActual()) {
                 if (null !== $this->connection) {
diff --git a/src/Services/DatabaseTools/PHPCRDatabaseTool.php b/src/Services/DatabaseTools/PHPCRDatabaseTool.php
index 067ec153..89801b3b 100644
--- a/src/Services/DatabaseTools/PHPCRDatabaseTool.php
+++ b/src/Services/DatabaseTools/PHPCRDatabaseTool.php
@@ -64,7 +64,7 @@ public function loadFixtures(array $classNames = [], bool $append = false): Abst
 
         $backupService = $this->getBackupService();
         if ($backupService) {
-            $backupService->init($this->connection, $this->getMetadatas(), $classNames);
+            $backupService->init($this->getMetadatas(), $classNames);
 
             if ($backupService->isBackupActual()) {
                 if (null !== $this->connection) {