[Pulp-dev] Pulp 3 Unit Test Plan Proposal

Brian Bouterse bbouters at redhat.com
Fri Apr 6 18:57:26 UTC 2018

There was a lot of +1 support on the PR. The basic Pulp3 unit test policy
can be seen here:

On Thu, Apr 5, 2018 at 1:06 PM, Brian Bouterse <bbouters at redhat.com> wrote:

> This is a wrap-up update with the last next steps (for now) on the Pulp3
> unit test discussion.
> 1. Here is a docs PR adopting simple but specific policy language
> recommending unit tests for Pulp3: https://github.com/pulp/pulp/pull/3411
> 2. We need to move our existing unit tests into their "forever home" so
> @daviddavis and I groomed this issue and put it on the sprint:
> https://pulp.plan.io/issues/3553
> For any areas of Pulp3 untested code that you want to add unit tests for
> please file a Task in Redmine for that. A few of those have been filed AIUI.
> If there are any issues with these changes please bring them up. Any
> aspect of them can be rethought. David and I have tried to facilitate what
> we've heard from the group.
> On Mon, Mar 26, 2018 at 5:13 PM, Brian Bouterse <bbouters at redhat.com>
> wrote:
>> I want to summarize what I've heard to facilitate some next steps and
>> further discussion.
>> 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/e
>> n/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!
>> -Brian
>> 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
>>> https://www.redhat.com/mailman/listinfo/pulp-dev
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