MC-18826: Increase test coverage for Cart & Checkout and Order Processing functional areas

- Integration test for MC-11299

Author: vitalysery

dev/tests/integration/testsuite/Magento/Sales/_files/two_orders_with_order_items.php

@@ -70,8 +70,8 @@
 $orderRepository->save($order);
 
 /** @var Payment $payment */
-$payment2 = $objectManager->create(Payment::class);
-$payment2->setMethod('checkmo')
+$secondPayment = $objectManager->create(Payment::class);
+$secondPayment->setMethod('checkmo')
     ->setAdditionalInformation('last_trans_id', '11122')
     ->setAdditionalInformation(
         'metadata',
@@ -82,8 +82,8 @@
     );
 
 /** @var OrderItem $orderItem */
-$orderItem2 = $objectManager->create(OrderItem::class);
-$orderItem2->setProductId($product->getId())
+$secondOrderItem = $objectManager->create(OrderItem::class);
+$secondOrderItem->setProductId($product->getId())
     ->setQtyOrdered(2)
     ->setBasePrice($product->getPrice())
     ->setPrice($product->getPrice())
@@ -93,10 +93,10 @@
     ->setSku($product->getSku());
 
 /** @var Order $order */
-$order2 = $objectManager->create(Order::class);
-$order2->setIncrementId('100000002')
+$secondOrder = $objectManager->create(Order::class);
+$secondOrder->setIncrementId('100000002')
     ->setState(Order::STATE_PROCESSING)
-    ->setStatus($order2->getConfig()->getStateDefaultStatus(Order::STATE_PROCESSING))
+    ->setStatus($secondOrder->getConfig()->getStateDefaultStatus(Order::STATE_PROCESSING))
     ->setSubtotal(100)
     ->setGrandTotal(100)
     ->setBaseSubtotal(100)
@@ -106,6 +106,6 @@
     ->setBillingAddress($billingAddress)
     ->setShippingAddress($shippingAddress)
     ->setStoreId($objectManager->get(StoreManagerInterface::class)->getStore()->getId())
-    ->addItem($orderItem2)
-    ->setPayment($payment2);
-$orderRepository->save($order2);
+    ->addItem($secondOrderItem)
+    ->setPayment($secondPayment);
+$orderRepository->save($secondOrder);