29251 test web-api test fix

Author: cpartica

app/code/Magento/ConfigurableProductGraphQl/etc/graphql/di.xml

@@ -48,7 +48,7 @@
         <plugin name="used_products_cache_graphql" type="Magento\ConfigurableProduct\Model\Plugin\Frontend\UsedProductsCache" />
     </type>
 
-<!--    <type name="Magento\ConfigurableProduct\Model\ResourceModel\Attribute\OptionSelectBuilderInterface">-->
-<!--        <plugin name="Magento_ConfigurableProduct_Plugin_Model_ResourceModel_Attribute_InStockOptionSelectBuilder_GraphQl" type="Magento\ConfigurableProduct\Plugin\Model\ResourceModel\Attribute\InStockOptionSelectBuilder"/>-->
-<!--    </type>-->
+    <type name="Magento\ConfigurableProduct\Model\ResourceModel\Attribute\OptionSelectBuilderInterface">
+        <plugin name="Magento_ConfigurableProduct_Plugin_Model_ResourceModel_Attribute_InStockOptionSelectBuilder_GraphQl" type="Magento\ConfigurableProduct\Plugin\Model\ResourceModel\Attribute\InStockOptionSelectBuilder"/>
+    </type>
 </config>

app/code/Magento/QuoteGraphQl/Model/Cart/AddSimpleProductToCart.php

@@ -9,11 +9,13 @@
 
 use Exception;
 use Magento\Catalog\Api\ProductRepositoryInterface;
+use Magento\Framework\Exception\LocalizedException;
 use Magento\Framework\Exception\NoSuchEntityException;
 use Magento\Framework\GraphQl\Exception\GraphQlInputException;
 use Magento\Framework\GraphQl\Exception\GraphQlNoSuchEntityException;
 use Magento\Quote\Model\Quote;
 use Magento\QuoteGraphQl\Model\Cart\BuyRequest\BuyRequestBuilder;
+use Magento\CatalogInventory\Api\StockStateInterface;
 
 /**
  * Add simple product to cart
@@ -30,16 +32,24 @@ class AddSimpleProductToCart
      */
     private $buyRequestBuilder;
 
+    /**
+     * @var StockStateInterface
+     */
+    private $stockState;
+
     /**
      * @param ProductRepositoryInterface $productRepository
      * @param BuyRequestBuilder $buyRequestBuilder
+     * @param StockStateInterface $stockState
      */
     public function __construct(
         ProductRepositoryInterface $productRepository,
-        BuyRequestBuilder $buyRequestBuilder
+        BuyRequestBuilder $buyRequestBuilder,
+        StockStateInterface $stockState
     ) {
         $this->productRepository = $productRepository;
         $this->buyRequestBuilder = $buyRequestBuilder;
+        $this->stockState = $stockState;
     }
 
     /**
@@ -53,15 +63,40 @@ public function __construct(
     public function execute(Quote $cart, array $cartItemData): void
     {
         $sku = $this->extractSku($cartItemData);
-
+        $childSku = $this->extractChildSku($cartItemData);
+        $childSkuQty = $this->extractChildSkuQuantity($cartItemData);
         try {
             $product = $this->productRepository->get($sku, false, null, true);
         } catch (NoSuchEntityException $e) {
             throw new GraphQlNoSuchEntityException(__('Could not find a product with SKU "%sku"', ['sku' => $sku]));
         }
 
+        if ($childSku) {
+            $childProduct = $this->productRepository->get($childSku, false, null, true);
+
+            $result = $this->stockState->checkQuoteItemQty(
+                $childProduct->getId(), $childSkuQty, $childSkuQty, $childSkuQty, $cart->getStoreId()
+            );
+
+            if ($result->getHasError() ) {
+                throw new GraphQlInputException(
+                    __(
+                        'Could not add the product with SKU %sku to the shopping cart: %message',
+                        ['sku' => $childSku, 'message' => __($result->getMessage())]
+                    )
+                );
+            }
+        }
+
         try {
-            $result = $cart->addProduct($product, $this->buyRequestBuilder->build($cartItemData));
+           $buyRequest = $this->buyRequestBuilder->build($cartItemData);
+           // Some options might be disabled and not available
+           if (empty($buyRequest['super_attribute'])) {
+               throw new LocalizedException(
+                   __('The product with SKU %sku is out of stock.', ['sku' => $childSku])
+               );
+           }
+           $result = $cart->addProduct($product, $this->buyRequestBuilder->build($cartItemData));
         } catch (Exception $e) {
             throw new GraphQlInputException(
                 __(
@@ -99,4 +134,33 @@ private function extractSku(array $cartItemData): string
         }
         return (string)$cartItemData['data']['sku'];
     }
+
+    /**
+     * Extract option child SKU from cart item data
+     *
+     * @param array $cartItemData
+     * @return string
+     * @throws GraphQlInputException
+     */
+    private function extractChildSku(array $cartItemData): ?string
+    {
+        if (isset($cartItemData['data']['sku'])) {
+            return (string)$cartItemData['data']['sku'];
+        }
+    }
+
+    /**
+     * Extract option child SKU from cart item data
+     *
+     * @param array $cartItemData
+     * @return string
+     * @throws GraphQlInputException
+     */
+    private function extractChildSkuQuantity(array $cartItemData): ?string
+    {
+        if (empty($cartItemData['data']['quantity'])) {
+            throw new GraphQlInputException(__('Missed "quantity" in cart item data'));
+        }
+        return (string)$cartItemData['data']['quantity'];
+    }
 }