Addition of MediaStorage\Model\File\Storage\File unit test

Author: mariusjp

app/code/Magento/MediaStorage/Test/Unit/Model/File/Storage/FileTest.php

@@ -0,0 +1,104 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\MediaStorage\Test\Unit\Model\File\Storage;
+
+use Exception;
+use Magento\Framework\Exception\LocalizedException;
+use Magento\Framework\Stdlib\DateTime\DateTime;
+use Magento\MediaStorage\Helper\File\Media;
+use Magento\MediaStorage\Helper\File\Storage\Database;
+use Magento\MediaStorage\Model\File\Storage\File;
+use PHPUnit\Framework\TestCase;
+use Psr\Log\LoggerInterface;
+
+/** Unit tests for \Magento\MediaStorage\Model\File\Storage\File class */
+class FileTest extends TestCase
+{
+    /**
+     * @var File
+     */
+    protected $_file;
+
+    /**
+     * @var Media
+     */
+    protected $_loggerMock;
+
+    /**
+     * @var Database
+     */
+    protected $_storageHelperMock;
+
+    /**
+     * @var DateTime
+     */
+    protected $_mediaHelperMock;
+
+    /**
+     * @var \Magento\MediaStorage\Model\ResourceModel\File\Storage\File
+     */
+    protected $_fileUtilityMock;
+
+    protected function setUp(): void
+    {
+        $this->_loggerMock = $this->getMockForAbstractClass(LoggerInterface::class);
+        $this->_storageHelperMock = $this->createMock(Database::class);
+        $this->_mediaHelperMock = $this->createMock(Media::class);
+        $this->_fileUtilityMock = $this->createMock(\Magento\MediaStorage\Model\ResourceModel\File\Storage\File::class);
+
+        $this->_file = new File(
+            $this->_loggerMock,
+            $this->_storageHelperMock,
+            $this->_mediaHelperMock,
+            $this->_fileUtilityMock
+        );
+    }
+
+    protected function tearDown(): void
+    {
+        unset($this->_file);
+    }
+
+    public function testSaveFileWithWrongFileFormat(): void
+    {
+        $this->expectException(LocalizedException::class);
+        $this->expectExceptionMessage('Wrong file info format');
+        $this->_file->saveFile([]);
+    }
+
+    public function testSaveFileUnsuccessfullyWithMissingDirectory()
+    {
+        $this->_fileUtilityMock
+            ->expects($this->once())
+            ->method('saveFile')
+            ->willThrowException(new Exception());
+
+        $this->expectException(LocalizedException::class);
+        $this->expectExceptionMessage('Unable to save file "filename.ext" at "filename.ext"');
+        $this->_file->saveFile([
+            'filename' => 'filename.ext',
+            'content' => 'content',
+        ]);
+    }
+
+    public function testSaveFileUnsuccessfullyWithoutMissingDirectory()
+    {
+        $this->_fileUtilityMock
+            ->expects($this->once())
+            ->method('saveFile')
+            ->willThrowException(new Exception());
+
+        $this->expectException(LocalizedException::class);
+        $this->expectExceptionMessage('Unable to save file "filename.ext" at "directory/filename.ext"');
+        $this->_file->saveFile([
+            'directory' => 'directory',
+            'filename' => 'filename.ext',
+            'content' => 'content',
+        ]);
+    }
+}