[jira] [Created] (HDDS-6186) Selective checks: skip integration check for unit test changes

["Attila Doroszlai (Jira)" <ji...@apache.org>]

Attila Doroszlai created HDDS-6186:
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             Summary: Selective checks: skip integration check for unit test changes
                 Key: HDDS-6186
                 URL: https://issues.apache.org/jira/browse/HDDS-6186
             Project: Apache Ozone
          Issue Type: Improvement
          Components: build, test
            Reporter: Attila Doroszlai
            Assignee: Attila Doroszlai


_unit_ and _integration_ checks run tests in mutually exclusive submodules. We may skip _integration_ check if only unit *tests* are changed.  However, we need to run _integration_ if any helper is changed, since we don't know if it's used by integration tests or not.

We can distinguish tests and test utilities by:

# file name pattern ({{Test\*.java}} are tests, others are utilities) OR
# extracting unit tests into separate submodule (similar to {{ratis-test}} in Ratis)

The first approach is quick and dirty.

The second one needs a bit more work, but is clean and has the additional benefit that all tests can be run despite any failures in dependencies.  (Currently a test failure in e.g. {{hdds-common}} causes build/test in {{hdds-server-framework}} and other modules that depend on it.)  The downside is that it may cause many merge conflicts for everyone (feature branches, other in-progress work, open PRs).

I propose to do it now the first way, then do it properly after current feature branches are merged.



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