ctdb: add expiry test for ctdb_mutex_ceph_rados_helper
Kill the ctdb_mutex_ceph_rados_helper with SIGKILL and then confirm
that the lock is automatically released following expiry.
Signed-off-by: David Disseldorp <ddiss@samba.org> Reviewed-by: Samuel Cabrero <scabrero@suse.de> Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): David Disseldorp <ddiss@samba.org>
Autobuild-Date(master): Thu Aug 9 16:26:36 CEST 2018 on sn-devel-144