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ASF GitHub Bot commented on DRILL-5325:
---------------------------------------
Github user asfgit closed the pull request at:
https://github.com/apache/drill/pull/808
> Implement sub-operator unit tests for managed external sort
> -----------------------------------------------------------
>
> Key: DRILL-5325
> URL: https://issues.apache.org/jira/browse/DRILL-5325
> Project: Apache Drill
> Issue Type: Improvement
> Components: Tools, Build & Test
> Affects Versions: 1.11.0
> Reporter: Paul Rogers
> Assignee: Paul Rogers
> Fix For: 1.11.0
>
>
> Validate the proposed sub-operator test framework, by creating low-level unit tests for
the managed version of the external sort.
> The external sort has a small number of existing tests, but those tests are quite superficial;
the "managed sort" project found many bugs. The managed sort itself was tested with ad-hoc
system-level tests created using the new "cluster fixture" framework. But, again, such tests
could not reach deep inside the sort code to exercise very specific conditions.
> As a result, we spent far too much time using QA functional tests to identify specific
code issues.
> Using the sub-opeator unit test framework, we can instead test each bit of functionality
at the unit test level.
> If doing so works, and is practical, it can serve as a model for other operator testing
projects.
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