Check minimum version for CLI tests

Registered by Matt Riedemann on 2014-06-13

This is my use case:

We package OpenStack internally and right now we're packaging stable/icehouse server packages (i.e. nova) plus the clients based on required versions around early April before the Icehouse release, so we package python-novaclient-2.17.0 right now.

With branchless Tempest, a CLI test was added for the nova server-group-list API:

https://github.com/openstack/tempest/commit/75ecdfb2083321dacfd4182c9108172452e4f010

However, that command didn't get into python-novaclient in the 2.17 release, it's on trunk:

https://github.com/openstack/python-novaclient/commit/c40891b2824805458db40067ab669d961ecfdfed

So we fail when trying to run that test with python-novaclient-2.17 since the command isn't available there.

Tempest doesn't hit a problem in the upstream CI since it's testing against trunk code for the clients rather than released versions on pypi.

My proposal here is that we add a @minversion decorator for the Tempest CLI tests such that a minimum version of the client is required for the test to run, otherwise it's skipped.

This would still test the new CLIs against unreleased versions of the clients since the in-development version of the packages should be higher than the minimum based on the git hash and how pbr doesn't packaging, but shouldn't fail for packagers/deployers that are only testing stable releases of the server packages and don't have CI on unreleased versions of the clients.

Blueprint information

Status:
Complete
Approver:
Matthew Treinish
Priority:
High
Drafter:
Matt Riedemann
Direction:
Approved
Assignee:
Matt Riedemann
Definition:
Approved
Series goal:
Proposed for juno
Implementation:
Implemented
Milestone target:
milestone icon juno-3
Started by
Matthew Treinish on 2014-07-25
Completed by
Matthew Treinish on 2014-08-12

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Gerrit topic: https://review.openstack.org/#q,topic:minversion-check-for-cli-tests,n,z

Addressed by: https://review.openstack.org/99984
    Check minimum version for CLI tests

Gerrit topic: https://review.openstack.org/#q,topic:bp/minversion-check-for-cli-tests,n,z

Addressed by: https://review.openstack.org/100030
    Sync versionutils from oslo-incubator

Addressed by: https://review.openstack.org/100031
    WIP: Add min_client_version decorator for CLI tests

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