VolumeBackupsRetore object has '_info' attribute
which contains the output data of the restore
command which should be returned instead of the
'VolumeBackupsRestore' object.

Change-Id: I64b75649c1ac9c24e05a197f7280975564b4d386
Story: 2004740
Task: 28811

test_snapshot_delete within test_snapshot.py found in both volume v1 and
v2 of python-openstackclient.

Story: 2004977
Change-Id: Iae29ba7992dcf8596f4fb4333d8bcf1889ecd7e6

Using addCleanup() for removing the pending volume transfer request
has no way to wait for the volume status to become available before
cleaning up the volume and gets racy when the tests are run with
slow performance in the volume backend.  So we pause at the end of
the test after either accepting the transfer request or explicitly
deleting it so the cleanup can delete the volume.

Change-Id: I04862069cab28bc76eeafd60ba32be646f478d86
Signed-off-by: Dean Troyer <dtroyer@gmail.com>

Remove the use of class setup/teardown from volume transfer functional tests
as that just doesn't work too well here. Also wait for volume status before
attempting transfer request operations, some test nodes take a while to
create the volumes.

Change-Id: Ib9378ab5c973deb2aa86c9b9ed31408f3a05115a
Signed-off-by: Dean Troyer <dtroyer@gmail.com>

This patch aims at fixing the broken gate jobs because of
cinder and glance patches [1], [2], [3] and [4].

* Remove parameter `--source-replicated` to drop volume
  replication v1 support
* Address some timing issues with volume transfer requests
* Only run Image v1 tests when the test cloud has v1 available
* Get tolerant of unexpected additional attributes being
  returned in Image data

[1].https://review.openstack.org/#/c/586293/
[2].https://review.openstack.org/#/c/532503/
[3].https://review.openstack.org/#/c/533564/
[4].https://review.openstack.org/#/c/578755/

Co-Authored-By: Dean Troyer <dtroyer@gmail.com>
Co-Authored-By: Monty Taylor <mordred@inaugust.com>
Depends-on: https://review.openstack.org/588664
Change-Id: I2a785750e92155185d3344e6116c7f5c6fdd3cbe
Signed-off-by: Fan Zhang <zh.f@outlook.com>

Convert functional VolumeTypeTests to not use class methods for setup.

Depends-On: https://review.openstack.org/577147
Change-Id: I855583ad1a50bf5f5046acdb85e977ab9e3c45d2

pycodestyle 2.40 and later enforce these rules that were not previously
enforced. Rather than just skipping them, this cleans up the trivial
instances of these violations.

This does also include some other updates that were not triggering errors
in an attempt to keep some of the style consistent.

Change-Id: Id7c0a6b8f1f835e69d844b000e3ed751852ada63
Closes-bug: #1762803