[jira] [Commented] (HBASE-13126) Provide alternate mini cluster classes other than HBTU for downstream users to write unit tests

["Sean Busbey (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-13126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17355785#comment-17355785 ] 

Sean Busbey commented on HBASE-13126:
-------------------------------------

thinking about this more, that approach will force all downstream users to adapt to a bunch of breaking changes. Could we instead flip this around a bit to minimize the downstream impact:

* move HBTU into the module
* make a new parent class to HBTU that lives in hbase-server still and has the implementation logic, e.g. {{InternalHBaseTestingUtiltiy}}, and make this class private
* Move our hbase-server tests to use the new {{InternalHBaseTestUtility}}
* Deprecate and start removing from HBTU stuff that we only want for internals

This way downstream folks *maybe* have to change a dependency if they were directly relying on hbase-server's test jar instead of hbase-testing-utility for some reaosn, but otherwise they can happily go on.

> Provide alternate mini cluster classes other than HBTU for downstream users to write unit tests
> -----------------------------------------------------------------------------------------------
>
>                 Key: HBASE-13126
>                 URL: https://issues.apache.org/jira/browse/HBASE-13126
>             Project: HBase
>          Issue Type: Umbrella
>          Components: API
>    Affects Versions: 2.0.0
>            Reporter: Sean Busbey
>            Priority: Critical
>             Fix For: 3.0.0-alpha-2
>
>
> Over in the review for HBASE-12972, [~enis] mentioned that one of the HBTU methods wasn't intended for public consumption.
> Can we build a list of such methods across the API, appropriately annotate them for 2.0, and deprecate them in earlier versions with a warning that they're going to be restricted?



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