[openstack-dev] [QA][blazar][ceilometer][congress][intel-nfv-ci-tests][ironic][manila][networking-bgpvpn][networking-fortinet][networking-sfc][neutron][neutron-fwaas][neutron-lbaas][nova-lxd][octavia][sahara][tap-as-a-service][horizon][vmware-nsx][watcher][all] Refactor of Tempest scenario base classes

Takashi Yamamoto yamamoto at midokura.com
Wed Mar 1 02:20:05 UTC 2017


On Mon, Feb 27, 2017 at 8:34 PM, Andrea Frittoli
<andrea.frittoli at gmail.com> wrote:
> Hello folks,
> TL;DR: if today you import manager,py from tempest.scenario please maintain
> a copy of [0] in tree until further notice.
> Full message:
> ------------------
> One of the priorities for the QA team in the Pike cycle is to refactor
> scenario tests to a sane code base [1].
> As they are now, changes to scenario tests are difficult to develop and
> review, and failures in those tests are hard to debug, which is in many
> directions far away from where we need to be.
> The issue we face is that, even though tempest.scenario.manager is not
> advertised as a stable interface in Tempest, many project use it today for
> convenience in writing their own tests. We don't know about dependencies
> outside of the OpenStack ecosystem, but we want to try to make this refactor
> a smooth experience for our uses in OpenStack, and avoid painful gate
> breakages as much as possible.
> The process we're proposing is as follows:
> - hold a copy of [0] in tree - in most cases you won't even have to change
> your imports as a lot of projects use tempest/scenario in their code base.
> You may decide to include the bare minimum you need from that module instead
> of all of it. It's a bit more work to make the patch, but less un-used code
> lying around afterwards.

i submitted patches for a few repos.
i'd suggest to use the same gerrit topic for relevant patches.

> - the QA team will refactor scenario tests, and make more interfaces stable
> (test.py, credential providers). We won't advertise every single change in
> this process, only when we start and once we're done.
> - you may decide to discard your local copy of manager.py and consume
> Tempest stable interfaces directly. We will help with any question you may
> have on the process and on Tempest interfaces.
> Repositories affected by the refactor are (based on [2]):
> blazar,ceilometer,congress,intel-nfv-ci-tests,ironic,manila,networking-bgpvpn,networking-fortinet,networking-sfc,neutron-fwaas,neutron-lbaas,nova-lxd,octavia,sahara-tests,tap-as-a-service,tempest-horizon,vmware-nsx,watcher
> If we don't hear from a team at all in the next two weeks, we will assume
> that the corresponding Tempest plugin / bunch of tests is not in use
> anymore, and ignore it. If you use tempest.scenario.manager.py today and
> your repo is not on the list, please let us know!
> I'm happy to propose an initial patch for any team that may require it -
> just ping me on IRC (andreaf).
> I won't have the bandwidth myself to babysit each patch through review and
> gate though.
> Thank you for your cooperation and patience!
> Andrea
> [0]
> http://git.openstack.org/cgit/openstack/tempest/tree/tempest/scenario/manager.py
> [1] https://etherpad.openstack.org/p/pike-qa-priorities
> [2]
> https://github.com/andreafrittoli/tempest_stable_interfaces/blob/master/data/get_deps.sh
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