@@ -19,6 +19,8 @@
 use Symfony\Component\Notifier\Message\MessageInterface;
 use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Test\TransportTestCase;
+use Symfony\Component\Notifier\Tests\Fixtures\DummyHttpClient;
+use Symfony\Component\Notifier\Tests\Fixtures\DummyMessage;
 use Symfony\Component\Notifier\Transport\TransportInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 use Symfony\Contracts\HttpClient\ResponseInterface;
@@ -28,26 +30,26 @@ final class MessageMediaTransportTest extends TransportTestCase
 /**
 * @return MessageMediaTransport
 */
-public function createTransport(HttpClientInterface $client = null, string $from = null): TransportInterface
+public static function createTransport(HttpClientInterface $client = null, string $from = null): TransportInterface
 {
-return new MessageMediaTransport('apiKey', 'apiSecret', $from, $client ?? $this->createMock(HttpClientInterface::class));
+return new MessageMediaTransport('apiKey', 'apiSecret', $from, $client ?? new DummyHttpClient());
 }
 
-public function toStringProvider(): iterable
+public static function toStringProvider(): iterable
 {
-yield ['messagemedia://api.messagemedia.com', $this->createTransport()];
-yield ['messagemedia://api.messagemedia.com?from=TEST', $this->createTransport(null, 'TEST')];
+yield ['messagemedia://api.messagemedia.com', self::createTransport()];
+yield ['messagemedia://api.messagemedia.com?from=TEST', self::createTransport(null, 'TEST')];
 }
 
-public function supportedMessagesProvider(): iterable
+public static function supportedMessagesProvider(): iterable
 {
 yield [new SmsMessage('0491570156', 'Hello!')];
 }
 
-public function unsupportedMessagesProvider(): iterable
+public static function unsupportedMessagesProvider(): iterable
 {
 yield [new ChatMessage('Hello!')];
-yield [$this->createMock(MessageInterface::class)];
+yield [new DummyMessage()];
 }
 
 /**

@@ -18,7 +18,7 @@
 "require": {
 "php": ">=7.2.5",
 "symfony/http-client": "^4.4|^5.2|^6.0",
-"symfony/notifier": "^5.3|^6.0"
+"symfony/notifier": "^5.4.21|^6.2.7"
 },
 "autoload": {
 "psr-4": { "Symfony\\Component\\Notifier\\Bridge\\MessageMedia\\": "" },