Fixed Integration Test CreateShipmentForOrderTest

Author: anzin

app/code/Magento/Sales/Model/Order/ShipmentFactory.php

@@ -136,12 +136,6 @@ protected function prepareItems(
                 }
             } else {
                 if (isset($items[$orderItem->getId()])) {
-                    if (!is_numeric($items[$orderItem->getId()])) {
-                        throw new \Magento\Framework\Exception\LocalizedException(
-                            __('The specified qty is not valid.')
-                        );
-                    }
-
                     $qty = min($items[$orderItem->getId()], $orderItem->getQtyToShip());
                 } elseif (!count($items)) {
                     $qty = $orderItem->getQtyToShip();
@@ -171,7 +165,7 @@ private function validateItem(\Magento\Sales\Model\Order\Item $orderItem, array
 
         // Remove from shipment items without qty or with qty=0
         if (!$orderItem->isDummy(true)
-            && (!isset($items[$orderItem->getId()]) || $items[$orderItem->getId()] <= 0)
+            && (!isset($items[$orderItem->getId()]) || (int) $items[$orderItem->getId()] <= 0)
         ) {
             return false;
         }

dev/tests/integration/testsuite/Magento/Shipping/Controller/Adminhtml/Order/Shipment/Save/CreateShipmentForOrderTest.php

@@ -234,7 +234,7 @@ public function testCreateOrderShipmentWithAlphabetQty(): void
         $postData = $this->createPostData($dataToSend);
         $this->performShipmentCreationRequest($postData);
         $this->assertCreateShipmentRequestWithError(
-            "The specified qty is not valid.",
+            "Shipment Document Validation Error(s):\nYou can't create a shipment without products.",
             "admin/order_shipment/new/order_id/{$postData['order_id']}"
         );
     }