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https://issues.apache.org/jira/browse/HDDS-9773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17790200#comment-17790200
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Attila Doroszlai commented on HDDS-9773:
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[~hemantk], using an abstract base class and two subclasses with minimal 
content is fine.  We just need to make sure they get executed.  For that, I 
think it's enough to convert the nested subclasses to top-level.

Alternatively, we can go back to the approach used in the first commit in the 
original PR.  As I mentioned, the PR was fine, until it was updated to address 
a [comment|https://github.com/apache/ozone/pull/5518#discussion_r1388806291] 
about volume/bucket being created for each test case.  I think we can avoid 
creating those by moving bucket creation to the {{@BeforeAll}} setup.

Having two subclasses doubles test setup time, while the per-method parameters 
result in slightly more code duplication (of the {{@MethodSource}} annotation, 
mostly).

For other test classes that need clusters configured differently, we can only 
use the subclass-based approach (for now).

> TestOmSnapshotFileSystem is not run in CI
> -----------------------------------------
>
>                 Key: HDDS-9773
>                 URL: https://issues.apache.org/jira/browse/HDDS-9773
>             Project: Apache Ozone
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 1.4.0
>            Reporter: Attila Doroszlai
>            Priority: Major
>
> HDDS-8201 migrated parameterized JUnit4 {{TestOmSnapshotFileSystem}} to 
> JUnit5 by creating two subclasses.  These are not executed, unless explicitly 
> specified by {{-Dtest}}.  (Search [latest [OM integration test 
> run|https://github.com/apache/ozone/actions/runs/6969482597/job/18966184833#step:6:94]
>  for {{TestOmSnapshotFileSystem}} to confirm.)
> [Initial 
> patch|https://github.com/apache/ozone/pull/5518/files/e870ab0e84a01e3800d4a8fed7a4ad4005578fe6]
>  in the [PR|https://github.com/apache/ozone/pull/5518] used a different 
> approach and was [executed in 
> CI|https://github.com/apache/ozone/actions/runs/6703326501/job/18214284130#step:6:190]
>  fine.
> CC [~hemantk]



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