ACP2E-2213: Loading order through repository loads the order multiple times from DB

Author: o-iegorov

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

@@ -0,0 +1,52 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Sales\Test\Unit\Model\Order;
+
+use Magento\Sales\Model\OrderFactory;
+use Magento\Sales\Api\Data\ShippingInterfaceFactory;
+use Magento\Sales\Api\Data\TotalInterfaceFactory;
+use Magento\Sales\Model\Order\ShippingBuilder;
+use PHPUnit\Framework\MockObject\MockObject;
+use PHPUnit\Framework\TestCase;
+
+class ShippingBuilderTest extends TestCase
+{
+    /**
+     * @var ShippingBuilder
+     */
+    private $shippingBuilder;
+
+    /**
+     * @var OrderFactory|MockObject
+     */
+    private $orderFactory;
+
+    /**
+     * @var ShippingInterfaceFactory|Mockobject
+     */
+    private $shippingFactory;
+
+    /**
+     * @var TotalInterfaceFactory|MockObject
+     */
+    private $totalFactory;
+
+    /**
+     * @return void
+     */
+    protected function setUp(): void
+    {
+        $this->orderFactory = $this->getMockBuilder(OrderFactory::class)
+            ->getMock();
+        $this->shippingFactory = $this->getMockBuilder(ShippingInterfaceFactory::class)
+            ->getMock();
+        $this->totalFactory = $this->getMockBuilder(TotalInterfaceFactory::class)
+            ->getMock();
+        $this->shippingBuilder = new ShippingBuilder($this->orderFactory, $this->shippingFactory, $this->totalFactory);
+    }
+}