MC-24256: [Integration Test] Export Customers Main File with multiple websites

Author: zakdma

dev/tests/integration/testsuite/Magento/Customer/_files/import_export/customers_with_websites.php

@@ -0,0 +1,18 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+use Magento\TestFramework\Helper\Bootstrap;
+use Magento\Customer\Api\CustomerRepositoryInterface;
+
+require __DIR__ . '/customers.php';
+require __DIR__ . '/../../../Store/_files/website.php';
+
+$objectManager = Bootstrap::getObjectManager();
+$repository = $objectManager->create(CustomerRepositoryInterface::class);
+$customer = $repository->get('customer@example.com');
+$customer->setWebsiteId($website->getId());
+$repository->save($customer);

dev/tests/integration/testsuite/Magento/Customer/_files/import_export/customers_with_websites_rollback.php

@@ -0,0 +1,9 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+include __DIR__ . '/customers_rollback.php';
+include __DIR__ . '/../../../Store/_files/website_rollback.php';

dev/tests/integration/testsuite/Magento/CustomerImportExport/Model/Export/CustomerTest.php

@@ -75,6 +75,20 @@ public function testExport()
         $this->checkExportData($lines, $expectedAttributes);
     }
 
+    /**
+     * Export with Multi Websites "Customer Main File".
+     *
+     * @magentoDataFixture Magento/Customer/_files/import_export/customers_with_websites.php
+     * @return void
+     */
+    public function testExportWithMultiWebsites(): void
+    {
+        $this->processCustomerAttribute();
+        $expectedAttributes = $this->getExpectedAttributes();
+        $lines = $this->export($expectedAttributes);
+        $this->checkExportData($lines, $expectedAttributes);
+    }
+
     /**
      * Return attributes which should be exported.
      *