MC-31618: Move static config to files - PLUGIN_LIST

- Add plugin list config generation integration test;

Author: adifucan

dev/tests/integration/framework/Magento/TestFramework/Application.php

@@ -714,6 +714,7 @@ protected function getCustomDirs()
             DirectoryList::TMP => [$path => "{$var}/tmp"],
             DirectoryList::UPLOAD => [$path => "{$var}/upload"],
             DirectoryList::PUB => [$path => "{$this->installDir}/pub"],
+            DirectoryList::GENERATED_METADATA => [$path => "{$generated}/metadata"]
         ];
         return $customDirs;
     }

dev/tests/integration/testsuite/Magento/Framework/Interception/PluginListGeneratorTest.php

@@ -0,0 +1,115 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\Framework\Interception;
+
+use Magento\Framework\App\Filesystem\DirectoryList;
+use Magento\Framework\Filesystem\DriverInterface;
+use Magento\TestFramework\Application;
+use Magento\TestFramework\Helper\Bootstrap;
+
+class PluginListGeneratorTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * Generated plugin list config for frontend scope
+     */
+    const CACHE_ID = 'primary|global|frontend|plugin-list';
+
+    /**
+     * @var PluginListGenerator
+     */
+    private $model;
+
+    /**
+     * @var DirectoryList
+     */
+    private $directoryList;
+
+    /**
+     * @var DriverInterface
+     */
+    private $file;
+
+    /**
+     * @var Application
+     */
+    private $application;
+
+    /**
+     * @inheritDoc
+     */
+    protected function setUp(): void
+    {
+        $this->application = Bootstrap::getInstance()->getBootstrap()->getApplication();
+        $this->directoryList = new DirectoryList(BP, $this->getCustomDirs());
+        $this->file = \Magento\TestFramework\Helper\Bootstrap::getObjectManager()->create(
+            DriverInterface::class
+        );
+        $this->model = \Magento\TestFramework\Helper\Bootstrap::getObjectManager()->create(
+            PluginListGenerator::class
+        );
+    }
+
+    /**
+     * Test plugin list configuration generation and load.
+     */
+    public function testPluginListConfigGeneration()
+    {
+        $scopes = ['frontend'];
+        $this->model->write($scopes);
+        $configData = $this->model->load(self::CACHE_ID);
+        $this->assertNotEmpty($configData[0]);
+        $this->assertNotEmpty($configData[1]);
+        $this->assertNotEmpty($configData[2]);
+        $expected = [
+            1 => [
+                0 => 'genericHeaderPlugin',
+                1 => 'asyncCssLoad',
+                2 => 'response-http-page-cache'
+            ]
+        ];
+        // Here in test I assume that this class below has 3 plugins. But the amount of plugins and class itself
+        // may vary. If it is changed, please update these assertions.
+        $this->assertArrayHasKey(
+            'Magento\\Framework\\App\\Response\\Http_sendResponse___self',
+            $configData[2],
+            'Processed plugin does not exist in the processed plugins array.'
+        );
+        $this->assertSame(
+            $expected,
+            $configData[2]['Magento\\Framework\\App\\Response\\Http_sendResponse___self'],
+            'Plugin configurations are not equal'
+        );
+    }
+
+    /**
+     * Gets customized directory paths
+     *
+     * @return array
+     */
+    private function getCustomDirs()
+    {
+        $path = DirectoryList::PATH;
+        $generated = "{$this->application->getTempDir()}/generated";
+
+        return [
+            DirectoryList::GENERATED_METADATA => [$path => "{$generated}/metadata"],
+        ];
+    }
+
+    /**
+     * @inheritDoc
+     */
+    protected function tearDown(): void
+    {
+        $filePath = $this->directoryList->getPath(DirectoryList::GENERATED_METADATA)
+            . '/' . self::CACHE_ID . '.' . 'php';
+
+        if (file_exists($filePath)) {
+            $this->file->deleteFile($filePath);
+        }
+    }
+}