Removed debugging code, tweaks to tests

tests/WebSocketMiddlewareTest.php

@@ -6,6 +6,7 @@ use PHPUnit\Framework\Attributes\CoversClass;
 use React\Http\Message\ServerRequest;
 
 #[CoversClass(WebSocketMiddleware::class)]
+#[CoversClass(WebSocketConnection::class)]
 class WebSocketMiddlewareTest extends \PHPUnit\Framework\TestCase
 {
 
@@ -54,4 +55,4 @@ class InvokableDummy
     public function test()
     {
     }
-}
+}