ProductCrossSellingSerializer example

#[Package('system-settings')] class ProductCrossSellingSerializerTest extends TestCase
{
    use IntegrationTestBehaviour;

    public function testOnlySupportsProductCrossSelling(): void
    {
        /** @var EntityRepository $assignedProductsRepository */
        $assignedProductsRepository = $this->getContainer()->get('product_cross_selling_assigned_products.repository');

        $serializer = new ProductCrossSellingSerializer($assignedProductsRepository);

        static::assertTrue($serializer->supports(ProductCrossSellingDefinition::ENTITY_NAME), 'should support product cross selling');

        $definitionRegistry = $this->getContainer()->get(DefinitionInstanceRegistry::class);
        foreach ($definitionRegistry->getDefinitions() as $definition) {
            $entity = $definition->getEntityName();
            if ($entity !== ProductCrossSellingDefinition::ENTITY_NAME) {
                static::assertFalse(
                    $serializer->supports($definition->getEntityName()),
                    ProductCrossSellingSerializer::class D ' should not support ' . $entity
                );
            }