how to test connection to Avast cloud?

How can I test whether the file shield is correctly connecting to the cloud?
I understand that there is a cloud data base that supplements the regularly updated offline virus definitions.

http://www.amtso.org/feature-settings-check-for-desktop-solutions/

Use the test 6. (Test if your cloud protection is enabled). This will tell you if cloud part is working when the file gets detected by it.

Thanks, @RejZor.
I was able to download CloudCar Testfile. Avast blocked only when I executed it.
I do not have Avast webshield installed, maybe that’s why?
I have only file shield, behavior shield, and firewall.

Yes, WebShield is the active component for real-time web protection.