add integration test

Author: engcom-Charlie

dev/tests/integration/testsuite/Magento/Framework/File/UploaderTest.php

@@ -85,6 +85,51 @@ public function testUploadFileFromNotAllowedFolder(): void
         $this->uploaderFactory->create(['fileId' => $type]);
     }
 
+    /**
+     * Upload file test when `Old Media Gallery` is disabled
+     *
+     * @magentoConfigFixture system/media_gallery/enabled 1
+     * @magentoAppArea adminhtml
+     * @dataProvider dirCodeDataProvider
+     *
+     * @param string $directoryCode
+     * @return void
+     */
+    public function testUploadFileWhenOldMediaGalleryDisabled(string $directoryCode): void
+    {
+        $destinationDirectory = $this->filesystem->getDirectoryWrite($directoryCode);
+        $tmpDirectory = $this->filesystem->getDirectoryWrite(DirectoryList::SYS_TMP);
+
+        $fileName = 'file.txt';
+        $destinationDir = 'tmp';
+        $filePath = $tmpDirectory->getAbsolutePath($fileName);
+
+        $tmpDirectory->writeFile($fileName, 'some data');
+
+        $type = [
+            'tmp_name' => $filePath,
+            'name' => $fileName,
+        ];
+
+        $uploader = $this->uploaderFactory->create(['fileId' => $type]);
+        $uploader->save($destinationDirectory->getAbsolutePath($destinationDir));
+
+        $this->assertTrue($destinationDirectory->isFile($destinationDir . DIRECTORY_SEPARATOR . $fileName));
+    }
+
+    /**
+     * DataProvider for testUploadFileWhenOldMediaGalleryDisabled
+     *
+     * @return array
+     */
+    public function dirCodeDataProvider(): array
+    {
+        return [
+            'media destination' => [DirectoryList::MEDIA],
+            'non-media destination' => [DirectoryList::VAR_DIR],
+        ];
+    }
+
     /**
      * @inheritdoc
      */