Hello, this is just a note for you to prevent you from wasting your time. ;) Sometimes and somehow the unittests using SSH do fail and telling you that there was no login to the SSH server possible. But on your own shell a simple "ssh user@localhost" does work without asking for a password. In that case just restart your SSH server (e.g. via "sudo systemctl restart ssh") or reboot the whole machine. Then it works again. Happy hacking! Christian