GmailTransportFactory example

use Symfony\Component\HttpClient\MockHttpClient;
use Symfony\Component\Mailer\Bridge\Google\Transport\GmailSmtpTransport;
use Symfony\Component\Mailer\Bridge\Google\Transport\GmailTransportFactory;
use Symfony\Component\Mailer\Test\TransportFactoryTestCase;
use Symfony\Component\Mailer\Transport\Dsn;
use Symfony\Component\Mailer\Transport\TransportFactoryInterface;

class GmailTransportFactoryTest extends TransportFactoryTestCase
{
    public function getFactory(): TransportFactoryInterface
    {
        return new GmailTransportFactory(null, new MockHttpClient(), new NullLogger());
    }

    public static function supportsProvider(): iterable
    {
        yield [
            new Dsn('gmail', 'default'),
            true,
        ];

        yield [
            new Dsn('gmail+smtp', 'default'),