Fix static tests

Remove dependency

Author: nuzil

app/code/Magento/CatalogGraphQl/Model/Resolver/Products/DataProvider/CategoryTree.php

@@ -105,7 +105,7 @@ public function getTree(ResolveInfo $resolveInfo, int $rootCategoryId): \Iterato
         $collection->setOrder('level');
         $collection->setOrder(
             'position',
-            \Magento\Eav\Model\ResourceModel\Entity\Attribute\Set\Collection::SORT_ORDER_DESC
+            $collection::SORT_ORDER_DESC
         );
         $collection->getSelect()->orWhere(
             $collection->getSelect()

app/code/Magento/CatalogGraphQl/Model/Resolver/Products/DataProvider/ExtractDataFromCategoryTree.php

@@ -54,7 +54,7 @@ public function execute(\Iterator $iterator): array
             $iterator->next();
 
             $pathElements = explode("/", $category->getPath());
-            if (empty($tree)){
+            if (empty($tree)) {
                 $this->startCategoryFetchLevel = count($pathElements) - 1;
             }
 

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

@@ -0,0 +1,149 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\QuoteGraphQl\Model\Cart;
+
+use Magento\Catalog\Api\ProductRepositoryInterface;
+use Magento\Framework\DataObject;
+use Magento\Framework\DataObjectFactory;
+use Magento\Framework\Exception\NoSuchEntityException;
+use Magento\Framework\GraphQl\Exception\GraphQlInputException;
+use Magento\Framework\GraphQl\Exception\GraphQlNoSuchEntityException;
+use Magento\Framework\Stdlib\ArrayManager;
+use Magento\Quote\Model\Quote;
+
+/**
+ * Add simple product to cart
+ *
+ * TODO: should be replaced for different types resolver
+ */
+class AddSimpleProductToCart
+{
+    /**
+     * @var ArrayManager
+     */
+    private $arrayManager;
+
+    /**
+     * @var DataObjectFactory
+     */
+    private $dataObjectFactory;
+
+    /**
+     * @var ProductRepositoryInterface
+     */
+    private $productRepository;
+
+    /**
+     * @param ArrayManager $arrayManager
+     * @param DataObjectFactory $dataObjectFactory
+     * @param ProductRepositoryInterface $productRepository
+     */
+    public function __construct(
+        ArrayManager $arrayManager,
+        DataObjectFactory $dataObjectFactory,
+        ProductRepositoryInterface $productRepository
+    ) {
+        $this->arrayManager = $arrayManager;
+        $this->dataObjectFactory = $dataObjectFactory;
+        $this->productRepository = $productRepository;
+    }
+
+    /**
+     * Add simple product to cart
+     *
+     * @param Quote $cart
+     * @param array $cartItemData
+     * @return void
+     * @throws GraphQlNoSuchEntityException
+     * @throws GraphQlInputException
+     */
+    public function execute(Quote $cart, array $cartItemData): void
+    {
+        $sku = $this->extractSku($cartItemData);
+        $qty = $this->extractQty($cartItemData);
+        $customizableOptions = $this->extractCustomizableOptions($cartItemData);
+
+        try {
+            $product = $this->productRepository->get($sku);
+        } catch (NoSuchEntityException $e) {
+            throw new GraphQlNoSuchEntityException(__('Could not find a product with SKU "%sku"', ['sku' => $sku]));
+        }
+
+        $result = $cart->addProduct($product, $this->createBuyRequest($qty, $customizableOptions));
+
+        if (is_string($result)) {
+            throw new GraphQlInputException(__($result));
+        }
+    }
+
+    /**
+     * Extract SKU from cart item data
+     *
+     * @param array $cartItemData
+     * @return string
+     * @throws GraphQlInputException
+     */
+    private function extractSku(array $cartItemData): string
+    {
+        $sku = $this->arrayManager->get('data/sku', $cartItemData);
+        if (!isset($sku)) {
+            throw new GraphQlInputException(__('Missing key "sku" in cart item data'));
+        }
+        return (string)$sku;
+    }
+
+    /**
+     * Extract Qty from cart item data
+     *
+     * @param array $cartItemData
+     * @return float
+     * @throws GraphQlInputException
+     */
+    private function extractQty(array $cartItemData): float
+    {
+        $qty = $this->arrayManager->get('data/qty', $cartItemData);
+        if (!isset($qty)) {
+            throw new GraphQlInputException(__('Missing key "qty" in cart item data'));
+        }
+        return (float)$qty;
+    }
+
+    /**
+     * Extract Customizable Options from cart item data
+     *
+     * @param array $cartItemData
+     * @return array
+     */
+    private function extractCustomizableOptions(array $cartItemData): array
+    {
+        $customizableOptions = $this->arrayManager->get('customizable_options', $cartItemData, []);
+
+        $customizableOptionsData = [];
+        foreach ($customizableOptions as $customizableOption) {
+            $customizableOptionsData[$customizableOption['id']] = $customizableOption['value'];
+        }
+        return $customizableOptionsData;
+    }
+
+    /**
+     * Format GraphQl input data to a shape that buy request has
+     *
+     * @param float $qty
+     * @param array $customOptions
+     * @return DataObject
+     */
+    private function createBuyRequest(float $qty, array $customOptions): DataObject
+    {
+        return $this->dataObjectFactory->create([
+            'data' => [
+                'qty' => $qty,
+                'options' => $customOptions,
+            ],
+        ]);
+    }
+}