Fix serialization tests

Author: Holger Lösken

tests/Entity/Post.php

@@ -5,6 +5,7 @@
 namespace MeiliSearch\Bundle\Test\Entity;
 
 use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Annotation\Groups;
 
@@ -43,13 +44,14 @@ class Post
     private ?\DateTime $publishedAt = null;
 
     /**
-     * @var Comment[]|ArrayCollection
+     * @var Comment[]|Collection
      * @ORM\OneToMany(
      *      targetEntity="Comment",
      *      mappedBy="post",
      *      orphanRemoval=true
      * )
      * @ORM\OrderBy({"publishedAt": "DESC"})
+     * @Groups({"searchable"})
      */
     private $comments;
 
@@ -119,7 +121,7 @@ public function setPublishedAt(?\DateTime $publishedAt): Post
         return $this;
     }
 
-    public function getComments(): ?ArrayCollection
+    public function getComments(): ?Collection
     {
         return $this->comments;
     }

tests/TestCase/SerializationTest.php

@@ -52,7 +52,8 @@ public function testSimpleEntityToSearchableArray()
             'posts',
             $post,
             $postMeta,
-            $this->get('serializer')
+            $this->get('serializer'),
+            ['useSerializerGroup' => true]
         );
 
         $expected = [
@@ -62,8 +63,9 @@ public function testSimpleEntityToSearchableArray()
             'publishedAt' => $serializedDateTime,
             'comments' => [
                 [
+                    'id' => null,
                     'content' => 'a great comment',
-                    'post_title' => 'a simple post',
+                    'publishedAt' => $serializedDateTime,
                 ],
             ],
         ];