MAGETWO-70683: New registered customer not showed in admin customer grid

- add rollback for fixture

Author: vgoncharenko

dev/tests/integration/testsuite/Magento/Customer/Model/ResourceModel/Grid/CollectionTest.php

@@ -64,9 +64,5 @@ public function testGetItemByIdForUpdateOnSchedule()
         $this->targetObject->clear();
         $item = $this->targetObject->getItemById($newCustomer->getId());
         $this->assertSame($newCustomer->getEmail(), $item->getEmail());
-
-        /** Rollback indexer to default state */
-        $indexer = $this->indexerRegistry->get(\Magento\Customer\Model\Customer::CUSTOMER_GRID_INDEXER_ID);
-        $indexer->setScheduled(false);
     }
 }

dev/tests/integration/testsuite/Magento/Customer/_files/customer_grid_indexer_enabled_update_on_schedule_rollback.php

@@ -0,0 +1,11 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+$objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();
+/** @var Magento\Framework\Indexer\IndexerRegistry $indexerRegistry */
+$indexerRegistry = $objectManager->create(\Magento\Framework\Indexer\IndexerRegistry::class);
+$indexer = $indexerRegistry->get(\Magento\Customer\Model\Customer::CUSTOMER_GRID_INDEXER_ID);
+$indexer->setScheduled(false);