ACP2E-1445: Customer data in Local Storage not reset when session file lost

 - Fixed the CR comments.

Author: devarul

app/code/Magento/Customer/Test/Mftf/Test/StorefrontValidateMiniCartEmptyAfterClearingSessionTest.xml

@@ -0,0 +1,89 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\Customer\Controller;
+
+use Magento\Checkout\Model\Session as CheckoutSession;
+use Magento\Customer\Api\CustomerRepositoryInterface;
+use Magento\Framework\Exception\FileSystemException;
+use Magento\Framework\Exception\LocalizedException;
+use Magento\Framework\Exception\NoSuchEntityException;
+use Magento\Framework\Exception\StateException;
+use Magento\Framework\Filesystem;
+use Magento\Framework\App\Filesystem\DirectoryList;
+use Magento\Framework\ObjectManagerInterface;
+use Magento\Quote\Api\CartManagementInterface;
+use Magento\TestFramework\Helper\Bootstrap;
+use Magento\TestFramework\Quote\Model\GetQuoteByReservedOrderId;
+
+class ValidateMinicartEmptyAfterClearingSessionTest extends \Magento\TestFramework\TestCase\AbstractController
+{
+    /**
+     * @var ObjectManagerInterface
+     */
+    private $objectManager;
+
+    /**
+     * @var Filesystem
+     */
+    private $filesystem;
+
+    /**
+     * @var CartManagementInterface
+     */
+    private $cartManagement;
+
+    /**
+     * @var GetQuoteByReservedOrderId
+     */
+    private $getQuoteByReservedOrderId;
+
+    /**
+     * @var CustomerRepositoryInterface
+     */
+    private $customerRepository;
+
+    /** @var CheckoutSession */
+    private $checkoutSession;
+
+    /**
+     * @inheritdoc
+     */
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->objectManager = Bootstrap::getObjectManager();
+        $this->filesystem = $this->objectManager->get(Filesystem::class);
+        $this->getQuoteByReservedOrderId = $this->objectManager->get(GetQuoteByReservedOrderId::class);
+        $this->customerRepository = $this->objectManager->get(CustomerRepositoryInterface::class);
+        $this->cartManagement = $this->objectManager->get(CartManagementInterface::class);
+        $this->checkoutSession = $this->objectManager->get(CheckoutSession::class);
+    }
+
+    /**
+     * @magentoDataFixture Magento/Checkout/_files/quote_with_simple_product_saved.php
+     * @magentoDataFixture Magento/Customer/_files/customer.php
+     *
+     * @return void
+     * @throws FileSystemException
+     * @throws LocalizedException
+     * @throws NoSuchEntityException
+     * @throws StateException
+     */
+    public function testValidateEmptyMinicartAfterSessionClear(): void
+    {
+        $customer = $this->customerRepository->get('customer@example.com');
+        $quote = $this->getQuoteByReservedOrderId->execute('test_order_with_simple_product_without_address');
+        $result = $this->cartManagement->assignCustomer($quote->getId(), $customer->getId(), $customer->getStoreId());
+        $this->assertTrue($result);
+        $customerQuote = $this->cartManagement->getCartForCustomer($customer->getId());
+        $this->checkoutSession->setQuoteId($customerQuote->getId());
+        $this->filesystem->getDirectoryWrite(DirectoryList::VAR_DIR)->delete(DirectoryList::SESSION);
+        $this->dispatch('backend/admin/cache/flushAll');
+        $this->assertEquals(0, $this->checkoutSession->getQuote()->getItemsCount());
+    }
+}