Fix order of argument in assertEqual
Fix order of argument in assertEqual

Some tests used incorrect argument order in
assertEqual(observed, expected).

The correct order expected by testtools is
assertEqual(expected, observed)

Change-Id: I73b331a1c75aa9e136c64ebaf363e7a2ef6a3ebc
Partial-Bug: #1259292

openstack/designate,openstack/designate,openstack/designate,grahamhayes/designate,muraliselva10/designate,grahamhayes/designate,grahamhayes/designate,muraliselva10/designate,muraliselva10/designate