Add graph api-test to (Delete | Change ) appRoleAssignments of a user

[SagarGi]

Description

Add graph-api test to change and unassign the appRoleAssignments of a user.

EndPoint: /graph/v1.0/users/{userID}/appRoleAssignments/{appRoleAssignmentID}

• delete app role of a user [full-ci] [tests-only] unassign app role assignment of user #6030
• change the app role of a user [full-ci] [tests-only] Change user role #6040

Note:Also check for other combination if can be added in a possible ways related to deletion and change of app role of a user

[grgprarup]

What are the things prohibited or limited to users whose role is deleted?
Currently, when the user's role is deleted, the user can create folders through API, after folder creation user role is set to role User.
Some issues regarding status code are reported here #5938, #6035, #6037
Need some input here.
@micbar @individual-it @ScharfViktor

[rhafer]

Currently, when the user's role is deleted, the user can create folders through API, after folder creation user role is set to role User.

The default behavior for users without a role assignment is described here: https://github.com/owncloud/ocis/tree/master/services/proxy#automatic-role-assignments

So, in an standard deployment, without any additional configuration, what you're seeing (user's are getting the "user" role assigned again) is the expected behavior.

[SwikritiT]

@grgprarup can this be closed now? Anything left to do?