diff --git a/s3_storage/composer.json b/s3_storage/composer.json
index 3363806d..7c5a8e78 100644
--- a/s3_storage/composer.json
+++ b/s3_storage/composer.json
@@ -3,21 +3,21 @@
   "description": "Adds the possibility to use S3 as a selectable storage backend",
   "type": "friendica-addon",
   "authors": [
-	{
-	  "name": "Philipp Holzer",
-	  "email": "admin@philipp.info",
-	  "homepage": "https://blog.philipp.info",
-	  "role": "Developer"
-	}
+    {
+      "name": "Philipp Holzer",
+      "email": "admin@philipp.info",
+      "homepage": "https://blog.philipp.info",
+      "role": "Developer"
+    }
   ],
   "require": {
-	"php": ">=7.0",
+    "php": ">=7.0",
     "akeeba/s3": "^2.0"
   },
   "license": "3-clause BSD license",
   "config": {
-	"optimize-autoloader": true,
-	"autoloader-suffix": "S3StorageAddon",
-	"preferred-install": "dist"
+    "optimize-autoloader": true,
+    "autoloader-suffix": "S3StorageAddon",
+    "preferred-install": "dist"
   }
 }
diff --git a/s3_storage/tests/S3Test.php.bak b/s3_storage/tests/S3Test.php.bak
deleted file mode 100644
index bdcbd005..00000000
--- a/s3_storage/tests/S3Test.php.bak
+++ /dev/null
@@ -1,121 +0,0 @@
-<?php
-
-namespace Friendica\Addon\webdav_storage\tests;
-
-use Friendica\Addon\webdav_storage\src\WebDav;
-use Friendica\DI;
-use Friendica\Network\HTTPClient\Factory\HTTPClientFactory;
-use Friendica\Test\src\Core\Storage\StorageTest;
-use Friendica\Core\Logger\Type\VoidLogger;
-
-/// @todo remove when constant is moved to a class constant
-/// Necessary for DB_UPDATE_VERSION constant in case of direct calls, where dbstructure isn't included during the calling process
-require_once __DIR__ . '/../../../static/dbstructure.config.php';
-
-class WebDavTest extends StorageTest
-{
-	public function dataMultiStatus()
-	{
-		return [
-			'nextcloud' => [
-				'xml' => <<<EOF
-<?xml version="1.0"?>
-<d:multistatus xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns" xmlns:oc="http://owncloud.org/ns"
-			   xmlns:nc="http://nextcloud.org/ns">
-	<d:response>
-		<d:href>/remote.php/dav/files/admin/Friendica_test/97/18/</d:href>
-		<d:propstat>
-			<d:prop>
-				<d:getlastmodified>Mon, 30 Aug 2021 12:58:54 GMT</d:getlastmodified>
-				<d:resourcetype>
-					<d:collection/>
-				</d:resourcetype>
-				<d:quota-used-bytes>45017</d:quota-used-bytes>
-				<d:quota-available-bytes>59180834349</d:quota-available-bytes>
-				<d:getetag>&quot;612cd60ec9fd5&quot;</d:getetag>
-			</d:prop>
-			<d:status>HTTP/1.1 200 OK</d:status>
-		</d:propstat>
-	</d:response>
-	<d:response>
-		<d:href>
-			/remote.php/dav/files/admin/Friendica_test/97/18/4d9d36f614dc005756bdfb9abbf1d8d24aa9ae842e5d6b5e7eb1dafbe767
-															  </d:href>
-		<d:propstat>
-			<d:prop>
-				<d:getlastmodified>Mon, 30 Aug 2021 12:58:54 GMT</d:getlastmodified>
-				<d:getcontentlength>45017</d:getcontentlength>
-				<d:resourcetype/>
-				<d:getetag>&quot;4f7a144092532141d0e6b925e50a896e&quot;</d:getetag>
-				<d:getcontenttype>application/octet-stream
-				</d:getcontenttype>
-			</d:prop>
-			<d:status>HTTP/1.1 200 OK</d:status>
-		</d:propstat>
-		<d:propstat>
-			<d:prop>
-				<d:quota-used-bytes/>
-				<d:quota-available-bytes/>
-			</d:prop>
-			<d:status>HTTP/1.1 404 Not Found
-									   </d:status>
-		</d:propstat>
-	</d:response>
-</d:multistatus>
-EOF,
-				'assertionCount' => 2,
-			],
-			'onlyDir' => [
-				'xml' => <<<EOF
-<d:multistatus xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns" xmlns:oc="http://owncloud.org/ns" xmlns:nc="http://nextcloud.org/ns">
-  <d:response>
-    <d:href>/remote.php/dav/files/admin/Friendica_test/34/cf/</d:href>
-    <d:propstat>
-      <d:prop>
-        <d:getlastmodified>Sun, 05 Sep 2021 17:56:05 GMT</d:getlastmodified>
-        <d:resourcetype>
-          <d:collection/>
-        </d:resourcetype>
-        <d:quota-used-bytes>0</d:quota-used-bytes>
-        <d:quota-available-bytes>59182800697</d:quota-available-bytes>
-        <d:getetag>"613504b55db4f"</d:getetag>
-      </d:prop>
-      <d:status>HTTP/1.1 200 OK</d:status>
-    </d:propstat>
-  </d:response>
-</d:multistatus>
-EOF,
-				'assertionCount' => 1,
-			],
-		];
-	}
-
-	/**
-	 * @dataProvider dataMultiStatus
-	 */
-	public function testMultistatus(string $xml, int $assertionCount)
-	{
-		$responseDoc = new \DOMDocument();
-		$responseDoc->loadXML($xml);
-
-		$xpath = new \DOMXPath($responseDoc);
-		$xpath->registerNamespace('d', 'DAV');
-
-		self::assertCount($assertionCount, $xpath->query('//d:multistatus/d:response'));
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	protected function getInstance()
-	{
-		/** @var HTTPClientFactory $factory */
-		$factory = DI::getDice()->create(HTTPClientFactory::class);
-
-		return new WebDav(getenv('WEBDAV_URL'), [
-			getenv('WEBDAV_USERNAME'),
-			getenv('WEBDAV_PASSWORD'),
-			'basic',
-		], $factory->createClient(), new VoidLogger());
-	}
-}