enrichProductWithCmsConfig example

$resolverContext = new ResolverContext($salesChannelContext, new Request());
        $result = new ElementDataCollection();
        $result->add('product_id', new EntitySearchResult(
            'product',
            1,
            new ProductCollection([clone $product]),
            null,
            new Criteria(),
            $resolverContext->getSalesChannelContext()->getContext()
        ));

        $slot = $this->enrichProductWithCmsConfig($product);

        $this->productBoxResolver->enrich($slot, $resolverContext, $result);
        /** @var ProductBoxStruct|null $productBoxStruct */
        $productBoxStruct = $slot->getData();
        static::assertInstanceOf(ProductBoxStruct::class, $productBoxStruct);

        /* * conditional assertions depending on if a product should be returned or not */
        if ($closeout && $hidden && $availableStock === 0) {
            static::assertNull($productBoxStruct->getProductId());
        }