Issue-25968 - Added additional checking for returning needed variable…

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

@@ -385,6 +385,8 @@ public function getStatus()
      *
      * @param string $statusId
      * @return \Magento\Framework\Phrase
+     *
+     * phpcs:disable Magento2.Functions.StaticFunction
      */
     public static function getStatusName($statusId)
     {
@@ -422,6 +424,8 @@ public function cancel()
      * Retrieve order item statuses array
      *
      * @return array
+     *
+     * phpcs:disable Magento2.Functions.StaticFunction
      */
     public static function getStatuses()
     {
@@ -1319,7 +1323,13 @@ public function getParentItemId()
      */
     public function getPrice()
     {
-        return $this->getData(OrderItemInterface::PRICE);
+        $price = $this->getData(OrderItemInterface::PRICE);
+
+        if ($price === null) {
+            return $price;
+        }
+
+        return (float) $price;
     }
 
     /**

app/code/Magento/Sales/Test/Unit/Model/Order/ItemTest.php

@@ -7,13 +7,11 @@
 namespace Magento\Sales\Test\Unit\Model\Order;
 
 use Magento\Framework\Serialize\Serializer\Json;
+use Magento\Sales\Api\Data\OrderItemInterface;
 use Magento\Sales\Model\ResourceModel\OrderFactory;
-use \Magento\Sales\Model\Order;
 
 /**
- * Class ItemTest
- *
- * @package Magento\Sales\Model\Order
+ * Unit test for order item class.
  */
 class ItemTest extends \PHPUnit\Framework\TestCase
 {
@@ -72,7 +70,7 @@ public function testSetParentItem()
     public function testGetPatentItem()
     {
         $item = $this->objectManager->getObject(\Magento\Sales\Model\Order\Item::class, []);
-        $this->model->setData(\Magento\Sales\Api\Data\OrderItemInterface::PARENT_ITEM, $item);
+        $this->model->setData(OrderItemInterface::PARENT_ITEM, $item);
         $this->assertEquals($item, $this->model->getParentItem());
     }
 
@@ -184,7 +182,7 @@ public function testGetOriginalPrice()
         $this->assertEquals($price, $this->model->getOriginalPrice());
 
         $originalPrice = 5.55;
-        $this->model->setData(\Magento\Sales\Api\Data\OrderItemInterface::ORIGINAL_PRICE, $originalPrice);
+        $this->model->setData(OrderItemInterface::ORIGINAL_PRICE, $originalPrice);
         $this->assertEquals($originalPrice, $this->model->getOriginalPrice());
     }
 
@@ -348,4 +346,24 @@ public function getItemQtyVariants()
             ]
         ];
     }
+
+    /**
+     * Test getPrice() method returns float
+     */
+    public function testGetPriceReturnsFloat()
+    {
+        $price = 9.99;
+        $this->model->setPrice($price);
+        $this->assertEquals($price, $this->model->getPrice());
+    }
+
+    /**
+     * Test getPrice() method returns null
+     */
+    public function testGetPriceReturnsNull()
+    {
+        $nullablePrice = null;
+        $this->model->setData(OrderItemInterface::PRICE, $nullablePrice);
+        $this->assertEquals($nullablePrice, $this->model->getPrice());
+    }
 }