chore: add factory tests

Author: t0xas

tests/FactoryGeneratorTest.php

@@ -71,7 +71,6 @@ public function testCannotGetContentForGenericFactory()
 
         $this->mockForFileExists([
             'database/factories/ModelFactory.php',
-            'vfs://root/app/Models',
         ]);
 
         $this->mockConfigurations();