GraphQL-165: GraphQL modules delivery

-- fix integration tests

Author: Valeriy Nayda

app/code/Magento/Quote/Model/QuoteManagement.php

@@ -253,7 +253,7 @@ public function createEmptyCartForCustomer($customerId)
         } catch (\Exception $e) {
             throw new CouldNotSaveException(__("The quote can't be created."));
         }
-        return $quote->getId();
+        return (int)$quote->getId();
     }
 
     /**

app/code/Magento/QuoteGraphQl/Model/Resolver/Cart/CreateEmptyCart.php

@@ -75,7 +75,7 @@ public function resolve(Field $field, $context, ResolveInfo $info, array $value
     {
         $customerId = $this->userContext->getUserId();
 
-        if (null !== $customerId) {
+        if (0 !== $customerId && null !== $customerId) {
             $quoteId = $this->cartManagement->createEmptyCartForCustomer($customerId);
             $maskedQuoteId = $this->quoteIdToMaskedId->execute($quoteId);
         } else {

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

@@ -0,0 +1,17 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+use Magento\Cms\Api\PageRepositoryInterface;
+use Magento\TestFramework\Helper\Bootstrap;
+
+$objectManager = Bootstrap::getObjectManager();
+
+/** @var PageRepositoryInterface $pageRepository */
+$pageRepository = $objectManager->get(PageRepositoryInterface::class);
+
+$pageRepository->deleteById('page100');
+$pageRepository->deleteById('page_design_blank');

dev/tests/integration/testsuite/Magento/Store/_files/store.php

@@ -22,7 +22,18 @@
     $store->save();
 } else {
     if ($store->getId()) {
+        /** @var \Magento\TestFramework\Helper\Bootstrap $registry */
+        $registry = \Magento\TestFramework\Helper\Bootstrap::getObjectManager()->get(
+            \Magento\Framework\Registry::class
+        );
+        $registry->unregister('isSecureArea');
+        $registry->register('isSecureArea', true);
+
         $store->delete();
+
+        $registry->unregister('isSecureArea');
+        $registry->register('isSecureArea', false);
+
         $store = \Magento\TestFramework\Helper\Bootstrap::getObjectManager()->create(\Magento\Store\Model\Store::class);
         $store->setData(
             [