minor #12652 [API][Product] Add additional specs for product normaliz…

…er (GSadee)

This PR was merged into the 1.10-dev branch.

Discussion
----------

| Q               | A
| --------------- | -----
| Branch?         | master
| Bug fix?        | yes?
| New feature?    | no
| BC breaks?      | no
| Deprecations?   | no
| Related tickets | fixes #Sylius/Sylius#12649
| License         | MIT


Commits
-------

ef975695645c3b0176d733da55a857aa77f2bfc5 [API][Product] Add additional specs for product normalizer

Serializer/ProductNormalizer.php

@@ -36,6 +36,7 @@ public function __construct(
     public function normalize($object, $format = null, array $context = [])
     {
         Assert::isInstanceOf($object, ProductInterface::class);
+        Assert::keyNotExists($context, self::ALREADY_CALLED);
 
         $context[self::ALREADY_CALLED] = true;
 

spec/Serializer/ProductNormalizerSpec.php

@@ -37,6 +37,14 @@ function it_supports_only_product_interface(ProductInterface $product, OrderInte
         $this->supportsNormalization($order)->shouldReturn(false);
     }
 
+    function it_does_not_support_if_the_normalizer_has_been_already_called(ProductVariantInterface $variant): void
+    {
+        $this
+            ->supportsNormalization($variant, null, ['product_normalizer_already_called' => true])
+            ->shouldReturn(false)
+        ;
+    }
+
     function it_adds_default_variant_iri_to_serialized_product(
         ProductVariantResolverInterface $defaultProductVariantResolver,
         IriConverterInterface $iriConverter,
@@ -67,4 +75,18 @@ function it_adds_default_variant_field_with_null_value_to_serialized_product_if_
 
         $this->normalize($product, null, [])->shouldReturn(['defaultVariant' => null]);
     }
+
+    function it_throws_an_exception_if_the_normalizer_has_been_already_called(
+        NormalizerInterface $normalizer,
+        ProductInterface $product
+    ): void {
+        $this->setNormalizer($normalizer);
+
+        $normalizer->normalize($product, null, ['product_normalizer_already_called' => true])->shouldNotBeCalled();
+
+        $this
+            ->shouldThrow(\InvalidArgumentException::class)
+            ->during('normalize', [$product, null, ['product_normalizer_already_called' => true]])
+        ;
+    }
 }