Fixed minimum qty allowed in wishlist

Author: vlmed

app/code/Magento/Wishlist/Model/Wishlist.php

@@ -149,6 +149,11 @@ class Wishlist extends AbstractModel implements IdentityInterface
      */
     private $stockConfiguration;
 
+    /**
+     * @var StockRegistryInterface|null
+     */
+    private $stockRegistry;
+
     /**
      * Constructor
      *
@@ -212,6 +217,7 @@ public function __construct(
         $this->productRepository = $productRepository;
         $this->stockConfiguration = $stockConfiguration
             ?: ObjectManager::getInstance()->get(StockConfigurationInterface::class);
+        $this->stockRegistry = $stockRegistry ?: ObjectManager::getInstance()->get(StockRegistryInterface::class);
     }
 
     /**
@@ -517,7 +523,7 @@ public function addNewItem($product, $buyRequest = null, $forciblySetQty = false
             }
             $candidate->setWishlistStoreId($storeId);
 
-            $qty = $candidate->getQty() ? $candidate->getQty() : 1;
+            $qty = $candidate->getQty() ?: $this->getMinSaleQty($candidate);
             // No null values as qty. Convert zero to 1.
             $item = $this->_addCatalogProduct($candidate, $qty, $forciblySetQty);
             $items[] = $item;
@@ -782,4 +788,21 @@ public function getIdentities()
         }
         return $identities;
     }
+
+    /**
+     * Returns min sale qty for product
+     *
+     * @param Product $product
+     *
+     * @return float
+     */
+    private function getMinSaleQty(Product $product): float
+    {
+        $stockItem = $this->stockRegistry->getStockItem(
+            $product->getId(),
+            $product->getStore()->getWebsiteId()
+        );
+
+        return $stockItem && $stockItem->getMinSaleQty() ? $stockItem->getMinSaleQty() : 1;
+    }
 }

app/code/Magento/Wishlist/Test/Unit/Model/WishlistTest.php

@@ -262,7 +262,7 @@ public function testUpdateItem($itemId, $buyRequest, $param): void
     {
         $storeId = 1;
         $productId = 1;
-        $stores = [(new DataObject())->setId($storeId)];
+        $stores = [(new DataObject())->setId($storeId)->setWebsiteId(1)];
 
         $newItem = $this->prepareWishlistItem();
 
@@ -290,13 +290,13 @@ public function testUpdateItem($itemId, $buyRequest, $param): void
         $instanceType = $this->getMockBuilder(AbstractType::class)
             ->disableOriginalConstructor()
             ->getMock();
+        $cartCandidate = $this->getMockBuilder(Product::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $cartCandidate->expects($this->any())->method('getStore')->willReturn($stores[0]);
         $instanceType->expects($this->once())
             ->method('processConfiguration')
-            ->willReturn(
-                $this->getMockBuilder(Product::class)
-                    ->disableOriginalConstructor()
-                    ->getMock()
-            );
+            ->willReturn($cartCandidate);
 
         $newProduct = $this->getMockBuilder(
             Product::class