GraphQL-165: GraphQL modules delivery

-- fix integration tests

Author: Valeriy Nayda

dev/tests/integration/testsuite/Magento/Cms/_files/pages_rollback.php

@@ -5,13 +5,26 @@
  */
 declare(strict_types=1);
 
+use Magento\Cms\Api\Data\PageInterface;
 use Magento\Cms\Api\PageRepositoryInterface;
+use Magento\Framework\Api\SearchCriteriaBuilder;
 use Magento\TestFramework\Helper\Bootstrap;
 
 $objectManager = Bootstrap::getObjectManager();
 
 /** @var PageRepositoryInterface $pageRepository */
 $pageRepository = $objectManager->get(PageRepositoryInterface::class);
 
-$pageRepository->deleteById('page100');
-$pageRepository->deleteById('page_design_blank');
+/** @var SearchCriteriaBuilder $searchCriteriaBuilder */
+$searchCriteriaBuilder = $objectManager->get(SearchCriteriaBuilder::class);
+$searchCriteria = $searchCriteriaBuilder->addFilter(PageInterface::IDENTIFIER, ['page100', 'page_design_blank'], 'in')
+    ->create();
+$result = $pageRepository->getList($searchCriteria);
+
+/**
+ * Tests which are wrapped with MySQL transaction clear all data by transaction rollback.
+ * In that case there is "if" which checks that "page100" and "page_design_blank" still exists in database.
+ */
+foreach ($result->getItems() as $item) {
+    $pageRepository->delete($item);
+}