Merge branch '5.4' into 6.2

* 5.4: [Notifier] Replace tests dummy instances by already in place mocks

Author: nicolas-grekas

Tests/ZendeskTransportTest.php

@@ -11,22 +11,19 @@
 
 namespace Symfony\Component\Notifier\Bridge\Zendesk\Tests;
 
+use Symfony\Component\HttpClient\MockHttpClient;
 use Symfony\Component\Notifier\Bridge\Zendesk\ZendeskOptions;
 use Symfony\Component\Notifier\Bridge\Zendesk\ZendeskTransport;
 use Symfony\Component\Notifier\Message\ChatMessage;
-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;
 
 final class ZendeskTransportTest extends TransportTestCase
 {
  public static function createTransport(HttpClientInterface $client = null): ZendeskTransport
  {
- return (new ZendeskTransport('testEmail', 'testToken', $client ?? new DummyHttpClient()))->setHost('test.zendesk.com');
+ return (new ZendeskTransport('testEmail', 'testToken', $client ?? new MockHttpClient()))->setHost('test.zendesk.com');
  }
 
  public static function toStringProvider(): iterable