[freeipa PR#4779][opened] [Backport][ipa-4-6] Add test for sssd ad trust lookup with dn in certmaprule

[seocam]

   URL: https://github.com/freeipa/freeipa/pull/4779
Author: seocam
 Title: #4779: [Backport][ipa-4-6] Add test for sssd ad trust lookup with dn in
certmaprule
Action: opened

PR body:
"""
Backport of #4588 to ipa-4-6 branch.
"""

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/4779/head:pr4779
git checkout pr4779