add tests

features/main/input_output.feature

@@ -0,0 +1,15 @@
+Feature: DTO input and output
+  In order to use a hypermedia API
+  As a client software developer
+  I need to be able to use DTOs on my resources as Input or Output objects.
+
+  Background:
+    Given I add "Accept" header equal to "application/ld+json"
+    And I add "Content-Type" header equal to "application/ld+json"
+
+  @!mongodb
+  Scenario: Fetch a collection of outputs with an entityClass as state option
+    When I send a "GET" request to "/output_and_entity_classes"
+    And the JSON node "hydra:member[0].@type" should be equal to "OutputAndEntityClassEntity"
+
+

src/State/Processor/SerializeProcessor.php

@@ -52,7 +52,7 @@ public function process(mixed $data, Operation $operation, array $uriVariables =
         $context['original_data'] = $data;
 
         $class = $operation->getClass();
-        if ($request->attributes->get('_api_resource_class') !== $operation->getClass()) {
+        if ($request->attributes->get('_api_resource_class') && $request->attributes->get('_api_resource_class') !== $operation->getClass()) {
             $class = $request->attributes->get('_api_resource_class');
             trigger_deprecation('api-platform/core', '3.3', 'The resource class on the router is not the same as the operation\'s class which leads to wrong behaviors. Prefer using "stateOptions" if you need to change the entity class.');
         }

tests/Fixtures/TestBundle/ApiResource/Issue6358/OutputAndEntityClass.php

@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of the API Platform project.
+ *
+ * (c) Kévin Dunglas <dunglas@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace ApiPlatform\Tests\Fixtures\TestBundle\ApiResource\Issue6358;
+
+use ApiPlatform\Doctrine\Orm\State\Options;
+use ApiPlatform\Metadata\ApiResource;
+use ApiPlatform\Metadata\GetCollection;
+
+#[ApiResource(
+    operations: [
+        new GetCollection(
+            output: OutputAndEntityClassDto::class,
+            provider: [self::class, 'provide'],
+            stateOptions: new Options(entityClass: OutputAndEntityClassEntity::class)
+        ),
+    ],
+)]
+class OutputAndEntityClass
+{
+    public static function provide(): array
+    {
+        return [new OutputAndEntityClassEntity(1)];
+    }
+}

tests/Fixtures/TestBundle/ApiResource/Issue6358/OutputAndEntityClassDto.php

@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of the API Platform project.
+ *
+ * (c) Kévin Dunglas <dunglas@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace ApiPlatform\Tests\Fixtures\TestBundle\ApiResource\Issue6358;
+
+class OutputAndEntityClassDto
+{
+}

tests/Fixtures/TestBundle/ApiResource/Issue6358/OutputAndEntityClassEntity.php

@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of the API Platform project.
+ *
+ * (c) Kévin Dunglas <dunglas@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace ApiPlatform\Tests\Fixtures\TestBundle\ApiResource\Issue6358;
+
+use Doctrine\ORM\Mapping as ORM;
+
+#[ORM\Entity]
+class OutputAndEntityClassEntity
+{
+    public function __construct(
+        #[ORM\Id]
+        #[ORM\Column(type: 'integer')]
+        #[ORM\GeneratedValue(strategy: 'AUTO')]
+        public readonly ?int $id = null
+    ) {
+    }
+}

tests/Fixtures/TestBundle/Entity/IdentifierShortcut.php

@@ -0,0 +1,22 @@
+<?php
+
+/*
+ * This file is part of the API Platform project.
+ *
+ * (c) Kévin Dunglas <dunglas@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace ApiPlatform\Tests\Fixtures\TestBundle\Entity;
+
+use ApiPlatform\Metadata\Patch;
+
+#[Patch(uriTemplate: '/identifiers_shortcut/{id}', uriVariables: [self::class, 'id'])]
+class IdentifierShortcut
+{
+    public $id;
+}