33378 GraphQL: create a entry in 'customer_log' after generate customer token

Author: khrystynastolbova

app/code/Magento/CustomerGraphQl/etc/graphql/events.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0"?>
+<!--
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+-->
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
+    <event name="customer_login">
+        <observer name="customer_log_login" instance="Magento\Customer\Observer\LogLastLoginAtObserver" />
+    </event>
+</config>

dev/tests/api-functional/testsuite/Magento/GraphQl/Customer/LoggerTest.php

@@ -0,0 +1,65 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\GraphQl\Customer;
+
+use Magento\Customer\Model\Logger;
+use Magento\Customer\Model\LogFactory;
+use Magento\TestFramework\Helper\Bootstrap;
+use Magento\TestFramework\TestCase\GraphQlAbstract;
+
+/**
+ *  Customer log data logger test.
+ */
+class LoggerTest extends GraphQlAbstract
+{
+    /**
+     * Customer log data logger.
+     *
+     * @var Logger
+     */
+    protected $logger;
+
+    protected function setUp(): void
+    {
+        $this->logger = Bootstrap::getObjectManager()->get(Logger::class);
+    }
+
+    /**
+     * Verify customer log after generate customer token
+     *
+     * @magentoApiDataFixture Magento/Customer/_files/customer.php
+     */
+    public function testGenerateCustomerValidToken()
+    {
+        $response = $this->graphQlMutation($this->getQuery());
+        $this->assertArrayHasKey('generateCustomerToken', $response);
+        $this->assertIsArray($response['generateCustomerToken']);
+
+        $log = $this->logger->get(1);
+        $this->assertNotEmpty($log->getLastLoginAt());
+    }
+
+    /**
+     * @param string $email
+     * @param string $password
+     * @return string
+     */
+    private function getQuery(string $email = 'customer@example.com', string $password = 'password') : string
+    {
+        return <<<MUTATION
+mutation {
+	generateCustomerToken(
+        email: "{$email}"
+        password: "{$password}"
+    ) {
+        token
+    }
+}
+MUTATION;
+    }
+}