Do not try do retrieve object in ItemNormalizer $context['resource_class'] is not defined

We store some document in Elasticsearch and we hydrate them with the Serializer.
But the `ItemNormalizer` raise an error because the `resource_class` is not defined.

Author: lyrixx

src/Serializer/ItemNormalizer.php

@@ -32,7 +32,7 @@ class ItemNormalizer extends AbstractItemNormalizer
     public function denormalize($data, $class, $format = null, array $context = [])
     {
         // Avoid issues with proxies if we populated the object
-        if (isset($data['id']) && !isset($context[self::OBJECT_TO_POPULATE])) {
+        if (isset($data['id']) && !isset($context[self::OBJECT_TO_POPULATE]) && isset($context['resource_class'])) {
             if (isset($context['api_allow_update']) && true !== $context['api_allow_update']) {
                 throw new InvalidArgumentException('Update is not allowed for this operation.');
             }

tests/Serializer/ItemNormalizerTest.php

@@ -186,4 +186,38 @@ public function testDenormalizeWithIdAndUpdateNotAllowed()
         $normalizer->setSerializer($serializerProphecy->reveal());
         $normalizer->denormalize(['id' => '12', 'name' => 'hello'], Dummy::class, null, $context);
     }
+
+    public function testDenormalizeWithIdAndNoResourceClass()
+    {
+        $context = [];
+
+        $propertyNameCollection = new PropertyNameCollection(['id', 'name']);
+        $propertyNameCollectionFactoryProphecy = $this->prophesize(PropertyNameCollectionFactoryInterface::class);
+        $propertyNameCollectionFactoryProphecy->create(Dummy::class, [])->willReturn($propertyNameCollection)->shouldBeCalled();
+
+        $propertyMetadataFactory = new PropertyMetadata(null, null, true, true);
+        $propertyMetadataFactoryProphecy = $this->prophesize(PropertyMetadataFactoryInterface::class);
+        $propertyMetadataFactoryProphecy->create(Dummy::class, 'id', [])->willReturn($propertyMetadataFactory)->shouldBeCalled();
+        $propertyMetadataFactoryProphecy->create(Dummy::class, 'name', [])->willReturn($propertyMetadataFactory)->shouldBeCalled();
+
+        $iriConverterProphecy = $this->prophesize(IriConverterInterface::class);
+
+        $resourceClassResolverProphecy = $this->prophesize(ResourceClassResolverInterface::class);
+
+        $serializerProphecy = $this->prophesize(SerializerInterface::class);
+        $serializerProphecy->willImplement(DenormalizerInterface::class);
+
+        $normalizer = new ItemNormalizer(
+            $propertyNameCollectionFactoryProphecy->reveal(),
+            $propertyMetadataFactoryProphecy->reveal(),
+            $iriConverterProphecy->reveal(),
+            $resourceClassResolverProphecy->reveal()
+        );
+        $normalizer->setSerializer($serializerProphecy->reveal());
+
+        $object = $normalizer->denormalize(['id' => '42', 'name' => 'hello'], Dummy::class, null, $context);
+        $this->assertInstanceOf(Dummy::class, $object);
+        $this->assertSame('42', $object->getId());
+        $this->assertSame('hello', $object->getName());
+    }
 }