privates['console.command.mailer_test'] = $instance = new \Symfony\Component\Mailer\Command\MailerTestCommand((new \Symfony\Component\Mailer\Transport(new RewindableGenerator(function () use ($container) { yield 0 => $container->load('getMailer_TransportFactory_NativeService'); yield 1 => $container->load('getMailer_TransportFactory_NullService'); yield 2 => $container->load('getMailer_TransportFactory_SendmailService'); yield 3 => $container->load('getMailer_TransportFactory_SmtpService'); }, 4)))->fromStrings(['main' => 'smtp://null'])); $instance->setName('mailer:test'); $instance->setDescription('Test Mailer transports by sending an email'); return $instance; } }