Pytestify tests with unittest.TestCase

[aciba90]

Convert tests using unittests.TestCase and the cloud-init custom one to pytest.

• tests/unittests/test_pathprefix2dict.py
• tests/unittests/config/test_cc_rsyslog.py
• tests/unittests/config/test_cc_power_state_change.py
• tests/unittests/config/test_apt_conf_v1.py
• tests/unittests/config/test_schema.py
• tests/unittests/config/test_cc_growpart.py
• tests/unittests/config/test_cc_spacewalk.py
• tests/unittests/config/test_cc_ca_certs.py
• tests/unittests/config/test_cc_mcollective.py
• tests/unittests/sources/test_openstack.py
• tests/unittests/sources/test_common.py
• tests/unittests/test_util.py
• tests/unittests/distros/test_resolv.py
• tests/unittests/distros/test_user_data_normalize.py
• tests/unittests/distros/test_hosts.py
• tests/unittests/distros/test_hostname.py
• tests/unittests/distros/test_ifconfig.py
• tests/unittests/distros/test_sysconfig.py
• tests/unittests/distros/test_alpine.py
• tests/unittests/helpers.py
• tests/unittests/test_registry.py
• tests/unittests/test__init__.py
• tests/unittests/reporting/test_reporting.py
• tests/unittests/test_data.py

[Aamir017]

Hi team,
I’m looking at the PR #6427 to convert tests using unittest.TestCase (and the cloud-init custom test classes) to pytest. I want to clarify a few things before I start:

Should all the listed test files under tests/unittests/ be fully converted to pytest, including config, distros, and helpers?

For the custom cloud-init test classes, do you want them fully rewritten with pytest fixtures, or just drop the base class and convert asserts?

Any specific CI/test requirements to keep in mind while converting?
Once I get confirmation, I can start the conversion and open a commit/PR with all changes.
Thanks!

[aciba90]

Hello, thanks for the interest in making cloud-init better.

It is encouraged to accomplish this issue by small PRs, to ease the work and the review, so please do limit the scope of your PRs.

About fixtures, I would say use them when it makes sense. General testing guidelines: https://cloudinit.readthedocs.io/en/latest/development/testing.html.

Do not hesitate to ask any question. Thanks again!

[Aamir017]

Thanks for the clarification! To confirm, I’ll start by converting just a small set of files (e.g. 1–2 test files) to pytest and open a PR for review. Once that’s merged, I’ll continue in small batches until the full list from #6427 is covered.

I’ll use fixtures only where it makes sense, and I’ll follow the testing guidelines you shared.

Does that workflow sound good to you?

[aciba90]

#6433

[chijioke-ibekwe]

Hi @aciba90. Can I possibly join in to handle some of these test conversions? I'm a new contributor