selftest: tests idmap mapping with idmap_rid
This adds two blackbox tests that run wbinfo --sids-to-unix-ids:
o a non-existing SID from the primary domain should return a mapping
o a SID with a bogus (and therefor unknown) domain must not return a mapping
Bug: https://bugzilla.samba.org/show_bug.cgi?id=11961
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Fri Apr 7 00:05:02 CEST 2017 on sn-devel-144