MAGETWO-93702: [2.3] User can place order when product changes status to Out of stock during checkout

Author: serhii-balko

app/code/Magento/CatalogInventory/Model/Stock/Status.php

@@ -72,6 +72,8 @@ protected function _construct()
     //@codeCoverageIgnoreStart
 
     /**
+     * Retrieve  product ID
+     *
      * @return int
      */
     public function getProductId()
@@ -80,6 +82,8 @@ public function getProductId()
     }
 
     /**
+     * Retrieve website ID
+     *
      * @return int
      */
     public function getWebsiteId()
@@ -88,6 +92,8 @@ public function getWebsiteId()
     }
 
     /**
+     * Retrieve stock ID
+     *
      * @return int
      */
     public function getStockId()
@@ -96,6 +102,8 @@ public function getStockId()
     }
 
     /**
+     * Retrieve qty
+     *
      * @return int
      */
     public function getQty()
@@ -104,6 +112,8 @@ public function getQty()
     }
 
     /**
+     * Retrieve stock status
+     *
      * @return int
      */
     public function getStockStatus(): int
@@ -114,6 +124,8 @@ public function getStockStatus(): int
     //@codeCoverageIgnoreEnd
 
     /**
+     * Retrieve stock item
+     *
      * @return StockItemInterface
      */
     public function getStockItem()
@@ -124,6 +136,8 @@ public function getStockItem()
     //@codeCoverageIgnoreStart
 
     /**
+     * Set product ID
+     *
      * @param int $productId
      * @return $this
      */
@@ -133,6 +147,8 @@ public function setProductId($productId)
     }
 
     /**
+     * Set web website ID
+     *
      * @param int $websiteId
      * @return $this
      */
@@ -142,6 +158,8 @@ public function setWebsiteId($websiteId)
     }
 
     /**
+     * Set stock ID
+     *
      * @param int $stockId
      * @return $this
      */
@@ -151,6 +169,8 @@ public function setStockId($stockId)
     }
 
     /**
+     * Set qty
+     *
      * @param int $qty
      * @return $this
      */
@@ -160,6 +180,8 @@ public function setQty($qty)
     }
 
     /**
+     * Set stock status
+     *
      * @param int $stockStatus
      * @return $this
      */
@@ -169,7 +191,7 @@ public function setStockStatus($stockStatus)
     }
 
     /**
-     * {@inheritdoc}
+     * Retrieve existing extension attributes object or create a new one.
      *
      * @return \Magento\CatalogInventory\Api\Data\StockStatusExtensionInterface|null
      */
@@ -179,7 +201,7 @@ public function getExtensionAttributes()
     }
 
     /**
-     * {@inheritdoc}
+     * Set an extension attributes object.
      *
      * @param \Magento\CatalogInventory\Api\Data\StockStatusExtensionInterface $extensionAttributes
      * @return $this

app/code/Magento/Quote/Model/QuoteValidator.php

@@ -15,6 +15,8 @@
 use Magento\Quote\Model\ValidationRules\QuoteValidationRuleInterface;
 
 /**
+ * Class to validate the quote
+ *
  * @api
  * @since 100.0.2
  */