我為此功能創(chuàng)建了一個(gè)測(cè)試：public function userRegistrationDatabase(String $email, String $keyRockId): object{    $entityManager = $this->getDoctrine()->getManager("gui");    $user = new User();    $user->setUserName($email);    $user->setEmail($email);    $user->setEnabled(true);    $userRole = ['ROLE_USER','ROLE_ADMIN'];    $user->addRole(implode(",",$userRole));    $user->setKeyrockId($keyRockId);    $entityManager->persist($user);    $entityManager->flush();    return $user;}我還創(chuàng)建了一個(gè)僅用于測(cè)試目的的 sqlite 數(shù)據(jù)庫。問題是：在測(cè)試期間如何切換要使用的db？這是測(cè)試：public function testUserRegistrationDatabase(){    $userManager = self::$kernel->getContainer()        ->get('test.'. UserManagement::class);    $mail = 'notexistinguser@mail.com';    $keyRockId = '45091fd63a1';    $user = $userManager->userRegistrationDatabase($mail,$keyRockId);}我想使用的數(shù)據(jù)庫是：self::$kernel->getContainer()        ->get('doctrine')        ->getManager('test_gui');所以基本上函數(shù)使用getManager("gui")但在測(cè)試中我想使用getManager("test_gui").