Some new tests and fixings

tests/Util/VFSTrait.php

@@ -23,6 +23,7 @@ trait VFSTrait
 			'bin' => [],
 			'static' => [],
 			'test' => [],
+			'logs' => [],
 		];
 
 		// create a virtual directory and copy all needed files and folders to it

tests/src/Util/Logger/StreamLoggerTest.php

@@ -121,7 +121,7 @@ class StreamLoggerTest extends AbstractLoggerTest
 	 */
 	public function testWrongDir()
 	{
-		$logger = new StreamLogger('test', '/a/wrong/directory/file.txt', $this->introspection);
+		$logger = new StreamLogger('test', '/$%/wrong/directory/file.txt', $this->introspection);
 
 		$logger->emergency('not working');
 	}