diff --git a/tests/Util/CreateDatabaseTrait.php b/tests/Util/CreateDatabaseTrait.php
index 7cb13cc225..3d83306532 100644
--- a/tests/Util/CreateDatabaseTrait.php
+++ b/tests/Util/CreateDatabaseTrait.php
@@ -37,8 +37,15 @@ trait CreateDatabaseTrait
 	use DatabaseTestTrait;
 	use VFSTrait;
 
+	/** @var Database|null */
+	protected $dba = null;
+
 	public function getDbInstance(): Database
 	{
+		if (isset($this->dba)) {
+			return $this->dba;
+		}
+
 		$configFileManager = new ConfigFileManager($this->root->url(), $this->root->url() . '/config/', $this->root->url() . '/static/');
 		$config            = new ReadOnlyFileConfig(new Cache([
 			'database' => [
diff --git a/tests/Util/VFSTrait.php b/tests/Util/VFSTrait.php
index e36cc1234c..3a203588cf 100644
--- a/tests/Util/VFSTrait.php
+++ b/tests/Util/VFSTrait.php
@@ -49,45 +49,38 @@ trait VFSTrait
 		// create a virtual directory and copy all needed files and folders to it
 		$this->root = vfsStream::setup('friendica', 0777, $structure);
 
-		$this->setConfigFile('dbstructure.config.php', true);
-		$this->setConfigFile('dbview.config.php', true);
-		$this->setConfigFile('defaults.config.php', true);
-		$this->setConfigFile('settings.config.php', true);
-		$this->setConfigFile('local.config.php');
-		$this->setDataFile('node.config.php');
-	}
-
-	protected function setDataFile(string $filename)
-	{
-		$file = dirname(__DIR__) . DIRECTORY_SEPARATOR .
-				'datasets' . DIRECTORY_SEPARATOR .
-				'config' . DIRECTORY_SEPARATOR .
-				$filename;
-
-		if (file_exists($file)) {
-			vfsStream::newFile($filename)
-				->at($this->root->getChild('config'))
-				->setContent(file_get_contents($file));
-		}
+		$this->setConfigFile('static' . DIRECTORY_SEPARATOR . 'dbstructure.config.php', true);
+		$this->setConfigFile('static' . DIRECTORY_SEPARATOR . 'dbview.config.php', true);
+		$this->setConfigFile('static' . DIRECTORY_SEPARATOR . 'defaults.config.php', true);
+		$this->setConfigFile('static' . DIRECTORY_SEPARATOR . 'settings.config.php', true);
+		$this->setConfigFile(
+			'mods' . DIRECTORY_SEPARATOR . 'local.config.vagrant.php',
+			false, 'local.config.php'
+		);
 	}
 
 	/**
 	 * Copying a config file from the file system to the Virtual File System
 	 *
-	 * @param string $filename The filename of the config file
-	 * @param bool   $static   True, if the folder `static` instead of `config` should be used
+	 * @param string $sourceFilePath The filename of the config file
+	 * @param bool   $static         True, if the folder `static` instead of `config` should be used
 	 */
-	protected function setConfigFile(string $filename, bool $static = false)
+	protected function setConfigFile(string $sourceFilePath, bool $static = false, string $targetFileName = null)
 	{
 		$file = dirname(__DIR__) . DIRECTORY_SEPARATOR .
 			'..' . DIRECTORY_SEPARATOR .
-			($static ? 'static' : 'config') . DIRECTORY_SEPARATOR .
-			$filename;
+				$sourceFilePath;
 
 		if (file_exists($file)) {
-			vfsStream::newFile($filename)
+			if (empty($targetFileName)) {
+				$tmpArray = preg_split('/\\' . DIRECTORY_SEPARATOR . '/', $sourceFilePath);
+				$targetFileName = array_pop($tmpArray);
+			}
+			vfsStream::newFile($targetFileName)
 				->at($this->root->getChild(($static ? 'static' : 'config')))
 				->setContent(file_get_contents($file));
+		} else {
+			throw new \Exception(sprintf('Unexpected missing config \'%s\'', $file));
 		}
 	}
 
diff --git a/tests/src/Module/Api/GnuSocial/GnuSocial/ConfigTest.php b/tests/src/Module/Api/GnuSocial/GnuSocial/ConfigTest.php
index 0d0afa64bc..6311175d34 100644
--- a/tests/src/Module/Api/GnuSocial/GnuSocial/ConfigTest.php
+++ b/tests/src/Module/Api/GnuSocial/GnuSocial/ConfigTest.php
@@ -41,12 +41,12 @@ class ConfigTest extends ApiTest
 			->run($this->httpExceptionMock);
 		$json = $this->toJson($response);
 
-		self::assertEquals('localhost', $json->site->server);
-		self::assertEquals('frio', $json->site->theme);
+		self::assertEquals(DI::config()->get('config', 'hostname'), $json->site->server);
+		self::assertEquals(DI::config()->get('system', 'theme'), $json->site->theme);
 		self::assertEquals(DI::baseUrl() . '/images/friendica-64.png', $json->site->logo);
 		self::assertTrue($json->site->fancy);
-		self::assertEquals('en', $json->site->language);
-		self::assertEquals('UTC', $json->site->timezone);
+		self::assertEquals(DI::config()->get('system', 'language'), $json->site->language);
+		self::assertEquals(DI::config()->get('system', 'default_timezone'), $json->site->timezone);
 		self::assertEquals(200000, $json->site->textlimit);
 		self::assertFalse($json->site->private);
 		self::assertEquals('always', $json->site->ssl);