Add a test for ipautil.run() method called with runas parameter.
The test is using ipautil.run() to execute /usr/bin/id and
checks that the uid/gid are consistent with the runas parameter.
Note that the test needs to be launched by the root user
(non-privileged user may not have the rights to execute ipautil.run()
with runas parameter).
Related to: https://pagure.io/freeipa/issue/7681
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Florence Blanc-Renaud
79fb0cc663