[Pulp-dev] Pulp 3 Unit Test Plan Proposal
bbouters at redhat.com
Mon Mar 26 21:13:09 UTC 2018
I want to summarize what I've heard to facilitate some next steps and
There seems to be broad support and no -1 votes to the idea of a soft check
that tracks unit test coverage, so we wanted to get that out of the way.
Daviddavis enabled unit test coverage reporting for all Pulp3 PRs (
https://github.com/pulp/pulp/pull/3397) and it will report on all PRs now.
Currently, it shows 54.98% for pulpcore. That number is surprisingly high
but not awesome. When looking at the report, it is mainly all import
statements and function definitions since we have few/zero unit tests but
also not much code.
Based on feedback it sounds like leaving it at a soft check and highly
encouraging unit tests with each PR is something we could all agree on. I
want us to get to specific language that we can add into the Pulp3 docs as
a new section called "Unit Tests" here:
https://docs.pulpproject.org/en/3.0/nightly/contributing/index.html Here is
a starting point, please send suggestions: "All new code is highly
encouraged to have basic unit tests that demonstrate its functionality. A
Pull Request that has failing unit tests cannot be merged."
Also from the convo on-list and on-irc, here are some questions I would
like help answering:
* What areas in the existing codebase would really benefit from unit
testing? I think we need a classpath list of modules and classes. I made an
etherpad here: https://etherpad.net/p/Pulp_Unit_Test_Candidates
* What are the existing unit tests and where do they live?
* What docs need to be added to make contributing unit tests reasonable?
Thanks for all the discussion!
On Mon, Mar 26, 2018 at 4:01 PM, Jeremy Audet <jaudet at redhat.com> wrote:
> > I'm also generally -1 against trying to pick a number (100%, 80%, 60%)
> up-front. We should unit test what makes sense to unit test, push that
> number as high as reasonable, and otherwise focus on pulp-smash, which I
> think has historically been more useful.
> QE is flattered by the focus on Pulp Smash. We're happy that the smoke
> tests are being executed as a pull request check.
> However, it's important to remember that unit tests are far faster
> than integration tests, typically by several orders of magnitude. In
> addition, Pulp Smash's smoke tests are intentionally limited. They're
> designed to execute quickly and to detect catastrophic regressions.
> They're not intended to be comprehensive. In fact, some of the
> already-written test cases may be stripped of their "smoke test"
> status for the sake of speed. Psychology is important here: it's bad
> if a developer locally fires off smoke tests, gets bored, and opens up
> a new web browser tab.
> Please keep this limitation in mind when deciding on policies
> regarding smoke tests.
> Pulp-dev mailing list
> Pulp-dev at redhat.com
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