Use typed properties in tests as much as possible

Author: nicolas-grekas

Tests/AsyncDecoratorTraitTest.php

@@ -15,6 +15,7 @@
 use Symfony\Component\HttpClient\DecoratorTrait;
 use Symfony\Component\HttpClient\Exception\TransportException;
 use Symfony\Component\HttpClient\HttpClient;
+use Symfony\Component\HttpClient\NativeHttpClient;
 use Symfony\Component\HttpClient\Response\AsyncContext;
 use Symfony\Component\HttpClient\Response\AsyncResponse;
 use Symfony\Contracts\HttpClient\ChunkInterface;
@@ -40,7 +41,7 @@ protected function getHttpClient(string $testCase, \Closure $chunkFilter = null,
         return new class($decoratedClient ?? parent::getHttpClient($testCase), $chunkFilter) implements HttpClientInterface {
             use AsyncDecoratorTrait;
 
-            private $chunkFilter;
+            private ?\Closure $chunkFilter;
 
             public function __construct(HttpClientInterface $client, \Closure $chunkFilter = null)
             {

Tests/HttpClientTestCase.php

@@ -31,7 +31,7 @@
 
 abstract class HttpClientTestCase extends BaseHttpClientTestCase
 {
-    private static $vulcainStarted = false;
+    private static bool $vulcainStarted = false;
 
     public function testTimeoutOnDestruct()
     {

Tests/RetryableHttpClientTest.php

@@ -208,7 +208,7 @@ public function testRetryWithDelay()
             new GenericRetryStrategy(),
             1,
             $logger = new class() extends TestLogger {
-                public $context = [];
+                public array $context = [];
 
                 public function log($level, $message, array $context = []): void
                 {

Tests/TestLogger.php

@@ -15,7 +15,7 @@
 
 class TestLogger extends AbstractLogger
 {
-    public $logs = [];
+    public array $logs = [];
 
     public function log($level, $message, array $context = []): void
     {