MC-19451: Adapt functional tests to Elasticsearch

Author: Joan He

dev/tests/integration/testsuite/Magento/ProductAlert/Model/ObserverTest.php

@@ -78,16 +78,16 @@ public function testProcess()
     /**
      * Check translations for product alerts
      *
-     * @magentoDbIsolation enabled
+     * @magentoDbIsolation disabled
      * @magentoAppArea frontend
+     * @magentoDataFixture Magento/Catalog/_files/category.php
      * @magentoConfigFixture current_store catalog/productalert/allow_price 1
      * @magentoDataFixture Magento/Store/_files/second_store.php
      * @magentoConfigFixture fixture_second_store_store general/locale/code pt_BR
      * @magentoDataFixture Magento/ProductAlert/_files/product_alert_with_store.php
      */
     public function testProcessPortuguese()
     {
-        $this->markTestSkipped('MC-21646');
         // get second store
         $storeRepository = $this->_objectManager->create(StoreRepository::class);
         $secondStore = $storeRepository->get('fixture_second_store');