[sssd PR#5228][comment] Test: Add back removed tests

[ikerexxe]

URL: https://github.com/SSSD/sssd/pull/5228
Title: #5228: Test: Add back removed tests

ikerexxe commented:
"""
> LGTM, but 2 things:
> Add info about original reason of removing those tests and link to commit / PR which removes them.
> Just to keep some track of history here.
> Those tests were fixed by you so you can add some info in this thread what was wrong with the original ones.
> Commit [7652873](https://github.com/SSSD/sssd/commit/76528734f9ad0a518bfa7c94d9b403ae1cab059f) is from some reason failing on upstream CI test. If it is false positive?

1 and 2 are done. I was waiting for the CI to complete but it's taking a lot of time so I'm not completely sure about 3. Anyways, I think the problem is not related with the test itself.
"""

See the full comment at https://github.com/SSSD/sssd/pull/5228#issuecomment-660981660