This builds on I644608b4e197ddea31c5f264adb492f2c8931f04 and
adds a revert resize test which deletes the source compute service
while the server is in VERIFY_RESIZE status and then reverts the
resize. The results are a bit different from the confirm scenario
because the confirm fails while the revert actually works which
is more dumb luck based on where the compute service drops the
move claim during the revert process (on the dest which still exists
rather than the source).
Conflicts:
nova/tests/functional/integrated_helpers.py
NOTE(mriedem): The conflict is due to not having change
Iea283322124cb35fc0bc6d25f35548621e8c8c2f in Queens. As a result
the _resize_and_check_allocations method is added to
ProviderUsageBaseTestCase within test_servers.py.
Change-Id: I2dcb1cb3e1f8ed469a4c5bf81ca5ca2fcf1fa73c
Related-Bug: #1852610
(cherry picked from commit f7dde6054e)
(cherry picked from commit 3774952410)
(cherry picked from commit 9983b24624)
(cherry picked from commit b6b2b3a35e)
917b5d3838