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From "Parth Chandra (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (DRILL-5459) Extend physical operator test framework to test mini plans consisting of multiple operators
Date Sat, 13 May 2017 17:43:09 GMT

     [ https://issues.apache.org/jira/browse/DRILL-5459?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Parth Chandra resolved DRILL-5459.
----------------------------------
    Resolution: Fixed

> Extend physical operator test framework to test mini plans consisting of multiple operators
> -------------------------------------------------------------------------------------------
>
>                 Key: DRILL-5459
>                 URL: https://issues.apache.org/jira/browse/DRILL-5459
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Tools, Build & Test
>            Reporter: Jinfeng Ni
>            Assignee: Jinfeng Ni
>              Labels: ready-to-commit
>
> DRILL-4437 introduced a unit test framework to test a non-scan physical operator. A JSON
reader is implicitly used to specify the inputs to the physical operator under test. 
> There are needs to extend such unit test framework for two scenarios.
> 1. We need a way to test scan operator with different record readers. Drill supports
a variety of data source, and it's important to make sure every record reader work properly
according to the protocol defined.
> 2. We need a way to test a so-called mini-plan (aka plan fragment) consisting of multiple
non-scan operators. 
> For the 2nd need, an alternative is to leverage SQL statement and query planner. However,
such approach has a direct dependency on query planner; 1) any planner change may impact the
testcase and lead to a different plan, 2) it's not always easy job to force the planner to
get a desired plan fragment for testing.
> In particular, it would be good to have a relatively easy way to specify a mini-plan
with a couple of targeted physical operators. 
> This JIRA is created to track the work to extend the unit test framework in DRILL-4437.
>  
> Related work: DRILL-5318 introduced a sub-operator test fixture, which mainly targeted
to test at sub-operator level. The framework in DRILL-4437 and the extension would focus on
operator level, or multiple operator levels, where execution would go through RecordBatch's
API call. 
> Same as DRILL-4437, we are going to use mockit to mock required objects such fragment
context, operator context etc. 



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