ENGCOM-7199: Implement ActionInterface for /swagger/ #27427

 - Merge Pull Request #27427 from lbajsarowicz/magento2:refactor/swagger-index
 - Merged commits:
   1. 3d4a8bb
   2. 5c433fe

Author: magento-engcom-team

app/code/Magento/Swagger/Controller/Index/Index.php

@@ -3,42 +3,38 @@
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
+declare(strict_types=1);
+
 namespace Magento\Swagger\Controller\Index;
 
-/**
- * Class Index
- *
- * @package Magento\Swagger\Controller\Index
- */
-class Index extends \Magento\Framework\App\Action\Action
+use Magento\Framework\App\Action\HttpGetActionInterface;
+use Magento\Framework\View\Page\Config as PageConfig;
+use Magento\Framework\View\Result\PageFactory as PageFactory;
+
+class Index implements HttpGetActionInterface
 {
     /**
-     * @var \Magento\Framework\View\Page\Config
+     * @var PageConfig
      */
     private $pageConfig;
 
     /**
-     * @var \Magento\Framework\View\Result\PageFactory
+     * @var PageFactory
      */
     private $pageFactory;
 
     /**
-     * @param \Magento\Framework\App\Action\Context $context
-     * @param \Magento\Framework\View\Page\Config $pageConfig
-     * @param \Magento\Framework\View\Result\PageFactory $pageFactory
+     * @param PageConfig $pageConfig
+     * @param PageFactory $pageFactory
      */
-    public function __construct(
-        \Magento\Framework\App\Action\Context $context,
-        \Magento\Framework\View\Page\Config $pageConfig,
-        \Magento\Framework\View\Result\PageFactory $pageFactory
-    ) {
-        parent::__construct($context);
+    public function __construct(PageConfig $pageConfig, PageFactory $pageFactory)
+    {
         $this->pageConfig = $pageConfig;
         $this->pageFactory = $pageFactory;
     }
 
     /**
-     * @return \Magento\Framework\View\Result\Page
+     * @inheritDoc
      */
     public function execute()
     {

app/code/Magento/Swagger/Test/Unit/Controller/Index/IndexTest.php

@@ -8,29 +8,29 @@
 
 namespace Magento\Swagger\Test\Unit\Controller\Index;
 
-class IndexTest extends \PHPUnit\Framework\TestCase
+use Magento\Framework\View\Page\Config as PageConfig;
+use Magento\Framework\View\Result\PageFactory;
+use Magento\Swagger\Controller\Index\Index;
+use PHPUnit\Framework\MockObject\MockObject;
+use PHPUnit\Framework\TestCase;
+
+class IndexTest extends TestCase
 {
     public function testExecute()
     {
-        $objectManager = new \Magento\Framework\TestFramework\Unit\Helper\ObjectManager($this);
-
-        $pageConfigMock = $this->getMockBuilder(\Magento\Framework\View\Page\Config::class)
+        /** @var MockObject|PageConfig $pageConfigMock */
+        $pageConfigMock = $this->getMockBuilder(PageConfig::class)
             ->disableOriginalConstructor()
             ->getMock();
-        $resultPageFactory = $this->getMockBuilder(\Magento\Framework\View\Result\PageFactory::class)
+        /** @var MockObject|PageFactory $resultPageFactory */
+        $resultPageFactory = $this->getMockBuilder(PageFactory::class)
             ->disableOriginalConstructor()
             ->getMock();
 
         $pageConfigMock->expects($this->once())->method('addBodyClass')->with('swagger-section');
         $resultPageFactory->expects($this->once())->method('create');
 
-        $model = $objectManager->getObject(
-            \Magento\Swagger\Controller\Index\Index::class,
-            [
-                'pageConfig' => $pageConfigMock,
-                'pageFactory' => $resultPageFactory
-            ]
-        );
-        $model->execute();
+        $indexAction = new Index($pageConfigMock, $resultPageFactory);
+        $indexAction->execute();
     }
 }