[QA] app dependencies are not checked during `occ upgrade` about core HOT 4 OPEN

app dependency validation was implemented years ago and was also unchanged all these years.

Hard to believe this is not working now.

from core.

app:enable does:

sudo -u www-data php occ app:enable files_classifier

In app.php line 1128:
                                                                                                                                                             
  App "Document Classification" cannot be installed because the following dependencies are not fulfilled: The command line tool exiftool could not be found  
                                                                                                                                                             

app:enable [-g|--groups GROUPS] [--] <app-id>

from core.

same as WebUI:

from core.

Reproducing the above steps again on a fresh system.

I can confirm, the webUI admin/apps says

But the webUI market page seems to be happy:

and so is occ app:list files_classifier:

Enabled:
  - files_classifier:
    - Version: 1.5.0
    - Path: /var/www/owncloud/apps-external/files_classifier

But yes, if the admin ignores that it is already enabled, and stubbornly tries occ app:enable files_classifier
then he sees the proper "dependencies are not fulfilled" message. But why should an admin try to enable the app that is already enabled?

I believe my scenario is not at all that unlikely.
Expected behavior: occ market:install -l should have failed with the "dependencies are not fulfilled" error message.

Adding dependencies during update did not happen often in the past. Maybe it is even the first time?

from core.