Fix assertEqual parameter order post V3 API admin-actions-split

Post admin-actions-split cleanup to fix the order of parameters
in assertEqual tests for the testcases split out during the
bp v3-api-admin-actions-split.

Was originally part of https://review.openstack.org/#/c/73724 but
was split out into a separate patch at the request of a reviewer.

Partially implements blueprint v3-api-admin-actions-split

Change-Id: I28332d595c073e518e1bcd4a3f945492904df5d3
Merge "Fix assertEqual parameter order post V3 API admin-actions-split"