Move controller tests to handler tests, update the factory methods to conform to the interface.

app/src/Domain/Factory/UserFactory.php

@@ -36,7 +36,11 @@ class UserFactory implements FactoryInterface
         return $user;
     }
 
-    public static function toArray(User $user): array
+    /**
+     * @param User $user
+     * @return array
+     */
+    public static function toArray($user): array
     {
         return [
             'name' => $user->getName(),

app/tests/Handler/HandlerTest.php

@@ -7,7 +7,7 @@ use Slovocast\Handler\Handler;
 use Psr\Http\Message\ResponseInterface as Response;
 use Odan\Session\SessionInterface;
 
-class ControllerTest extends TestCase
+class HandlerTest extends TestCase
 {
     public function testHtmlInlineResponse(): void
     {

app/tests/Handler/User/RegisterUserActionTest.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace Slovocast\Tests\Controller\User;
+namespace Slovocast\Tests\Handler\User;
 
 use Slovocast\Domain\Factory\UserFactory;
 use Slovocast\Tests\TestCase;