MC-15448: One can't download or delete export csv file from export index page grid

Author: StasKozar

app/code/Magento/ImportExport/Controller/Adminhtml/Export.php

@@ -18,4 +18,9 @@ abstract class Export extends Action
      * @see _isAllowed()
      */
     const ADMIN_RESOURCE = 'Magento_ImportExport::export';
+
+    /**
+     * @inheritdoc
+     */
+    protected $_publicActions = ['download', 'delete'];
 }

dev/tests/integration/testsuite/Magento/ImportExport/Controller/Adminhtml/Export/File/DeleteTest.php

@@ -0,0 +1,93 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\ImportExport\Controller\Adminhtml\Export\File;
+
+use Magento\Framework\App\Filesystem\DirectoryList;
+
+/**
+ * Test for \Magento\ImportExport\Controller\Adminhtml\Export\File\Delete class.
+ */
+class DeleteTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * @var \Magento\ImportExport\Controller\Adminhtml\Export\File\Delete
+     */
+    private $model;
+
+    /**
+     * @var \Magento\Framework\Filesystem\Directory\WriteInterface
+     */
+    private $varDirectory;
+
+    /**
+     * @var string
+     */
+    private $fullDirectoryPath;
+
+    /**
+     * @var string
+     */
+    private $fileName = 'catalog_product.csv';
+
+    /**
+     * @var \Magento\Framework\Filesystem
+     */
+    private $filesystem;
+
+    /**
+     * @var \Magento\Framework\ObjectManagerInterface
+     */
+    private $objectManager;
+
+    /**
+     * @inheritdoc
+     */
+    protected function setUp()
+    {
+        $this->objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();
+        $this->filesystem = $this->objectManager->get(\Magento\Framework\Filesystem::class);
+        $this->varDirectory = $this->filesystem->getDirectoryWrite(DirectoryList::VAR_DIR);
+        $this->varDirectory->create($this->varDirectory->getRelativePath('export'));
+        $this->fullDirectoryPath = $this->varDirectory->getAbsolutePath('export');
+        $filePath =  $this->fullDirectoryPath . DIRECTORY_SEPARATOR . $this->fileName;
+        $fixtureDir = realpath(__DIR__ . '/../../Import/_files');
+        copy($fixtureDir . '/' . $this->fileName, $filePath);
+        $this->model = $this->objectManager->get(\Magento\ImportExport\Controller\Adminhtml\Export\File\Delete::class);
+    }
+
+    /**
+     * Check that file can be removed under var/export directory.
+     *
+     * @return void
+     */
+    public function testExecute()
+    {
+        $this->model->getRequest()->setMethod('GET')->setParams(['filename' => 'catalog_product.csv']);
+        $this->model->execute();
+
+        $this->assertFalse(
+            $this->varDirectory->isExist(
+                $this->varDirectory->getRelativePath( 'export/' . $this->fileName)
+            )
+        );
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public static function tearDownAfterClass()
+    {
+        $filesystem = \Magento\TestFramework\Helper\Bootstrap::getObjectManager()
+            ->get(\Magento\Framework\Filesystem::class);
+        /** @var \Magento\Framework\Filesystem\Directory\WriteInterface $directory */
+        $directory = $filesystem->getDirectoryWrite(DirectoryList::VAR_DIR);
+        if ($directory->isExist('export')) {
+            $directory->delete('export');
+        }
+    }
+}