diff -ru src/Symfony/Component/Serializer/Tests/Encoder/XmlEncoderTest.php src/Symfony/Component/Serializer/Tests/Encoder/XmlEncoderTest.php
--- src/Symfony/Component/Serializer/Tests/Encoder/XmlEncoderTest.php	2024-04-23 13:25:02.696190868 +0000
+++ src/Symfony/Component/Serializer/Tests/Encoder/XmlEncoderTest.php	2024-04-23 13:25:09.194418428 +0000
@@ -614,8 +614,8 @@
 XML;
 
         $expected = ['person' => [
-          ['firstname' => 'Benjamin', 'lastname' => 'Alexandre'],
-          ['firstname' => 'Damien', 'lastname' => 'Clay'],
+            ['firstname' => 'Benjamin', 'lastname' => 'Alexandre'],
+            ['firstname' => 'Damien', 'lastname' => 'Clay'],
         ]];
 
         $this->assertEquals($expected, $this->encoder->decode($source, 'xml'));
@@ -638,8 +638,8 @@
 </people>
 XML;
         $expected = ['person' => [
-          ['firstname' => 'Benjamin', 'lastname' => 'Alexandre'],
-          ['firstname' => 'Damien', 'lastname' => 'Clay'],
+            ['firstname' => 'Benjamin', 'lastname' => 'Alexandre'],
+            ['firstname' => 'Damien', 'lastname' => 'Clay'],
         ]];
         $this->assertEquals($expected, $this->encoder->decode(
             $source,
@@ -673,8 +673,8 @@
         $this->encoder->setSerializer($serializer);
 
         $expected = ['person' => [
-          ['firstname' => 'Benjamin', 'lastname' => 'Alexandre', '#comment' => ' This comment should be decoded. '],
-          ['firstname' => 'Damien', 'lastname' => 'Clay'],
+            ['firstname' => 'Benjamin', 'lastname' => 'Alexandre', '#comment' => ' This comment should be decoded. '],
+            ['firstname' => 'Damien', 'lastname' => 'Clay'],
         ]];
 
         $this->assertEquals($expected, $this->encoder->decode($source, 'xml'));