feature #23747 [Serializer][FrameworkBundle] Add a DateInterval normalizer (Lctrs)

This PR was squashed before being merged into the 3.4 branch (closes #23747).

Discussion
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[Serializer][FrameworkBundle] Add a DateInterval normalizer

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        | symfony/symfony-docs#8267

Could be useful for API needing to submit a duration.

Most code have been adapted from @MisatoTremor's DateInterval form type. Credits to him.

Commits
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6185cb1991 [Serializer][FrameworkBundle] Add a DateInterval normalizer

Author: ogizanagi

DependencyInjection/FrameworkExtension.php

@@ -67,6 +67,7 @@
 use Symfony\Component\Serializer\Encoder\YamlEncoder;
 use Symfony\Component\Serializer\Mapping\Factory\CacheClassMetadataFactory;
 use Symfony\Component\Serializer\Normalizer\DataUriNormalizer;
+use Symfony\Component\Serializer\Normalizer\DateIntervalNormalizer;
 use Symfony\Component\Serializer\Normalizer\DateTimeNormalizer;
 use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
 use Symfony\Component\Serializer\Normalizer\JsonSerializableNormalizer;
@@ -1525,6 +1526,13 @@ private function registerSerializerConfiguration(array $config, ContainerBuilder
             $definition->addTag('serializer.normalizer', array('priority' => -920));
         }
 
+        if (class_exists(DateIntervalNormalizer::class)) {
+            // Run before serializer.normalizer.object
+            $definition = $container->register('serializer.normalizer.dateinterval', DateIntervalNormalizer::class);
+            $definition->setPublic(false);
+            $definition->addTag('serializer.normalizer', array('priority' => -915));
+        }
+
         if (class_exists('Symfony\Component\Serializer\Normalizer\DateTimeNormalizer')) {
             // Run before serializer.normalizer.object
             $definition = $container->register('serializer.normalizer.datetime', DateTimeNormalizer::class);

Tests/DependencyInjection/FrameworkExtensionTest.php

@@ -34,6 +34,7 @@
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 use Symfony\Component\PropertyAccess\PropertyAccessor;
 use Symfony\Component\Serializer\Mapping\Loader\AnnotationLoader;
+use Symfony\Component\Serializer\Normalizer\DateIntervalNormalizer;
 use Symfony\Component\Serializer\Serializer;
 use Symfony\Component\Serializer\Mapping\Factory\CacheClassMetadataFactory;
 use Symfony\Component\Serializer\Mapping\Loader\XmlFileLoader;
@@ -776,6 +777,21 @@ public function testDataUriNormalizerRegistered()
         $this->assertEquals(-920, $tag[0]['priority']);
     }
 
+    public function testDateIntervalNormalizerRegistered()
+    {
+        if (!class_exists(DateIntervalNormalizer::class)) {
+            $this->markTestSkipped('The DateIntervalNormalizer has been introduced in the Serializer Component version 3.4.');
+        }
+
+        $container = $this->createContainerFromFile('full');
+
+        $definition = $container->getDefinition('serializer.normalizer.dateinterval');
+        $tag = $definition->getTag('serializer.normalizer');
+
+        $this->assertEquals(DateIntervalNormalizer::class, $definition->getClass());
+        $this->assertEquals(-915, $tag[0]['priority']);
+    }
+
     public function testDateTimeNormalizerRegistered()
     {
         if (!class_exists('Symfony\Component\Serializer\Normalizer\DateTimeNormalizer')) {