Hi,
Currently, the best way to accomplish that is to create a test user specifically for role testing and then launch a second Admin Tool session to log in and perform your tests. Keep in mind that [Access Rights](https://community.denodo.com/docs/html/browse/6.0/vdp/administration/databases_users_and_access_rights_in_virtual_dataport/user_and_access_right_in_virtual_dataport/user_and_access_right_in_virtual_dataport#roles) are cumulative, so if you want to test a specific role, you'll want to be sure it is the only role assigned to the test user at the time of testing.
Hope this helps!