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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-626) create an iterator fuzz tester
Date Mon, 09 Nov 2015 15:54:11 GMT


ASF GitHub Bot commented on ACCUMULO-626:

GitHub user joshelser opened a pull request:

    ACCUMULO-626 Iterator fuzzer/tester

    Some early code for automatically testing iterators.

You can merge this pull request into a Git repository by running:

    $ git pull ACCUMULO-626-fuzzer

Alternatively you can review and apply these changes as the patch at:

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #50
commit 768a118c492229463df5c8c361c33559d92b7508
Author: Josh Elser <>
Date:   2015-11-07T19:17:17Z

    ACCUMULO-626 Initial outline of the test harness.

commit fecf28ae30e845457e62a13efca5be83b4fc04ef
Author: Josh Elser <>
Date:   2015-11-07T21:09:17Z

    Create a basic JUnit4 test case that wraps IteratorTestRunner.

commit 21b3ce14dc4199a3b0974d33ac04b0767543554d
Author: Josh Elser <>
Date:   2015-11-07T22:22:13Z

    Some initial tests against WholeRowIterator

commit 11bf87f8b13a45f82f04a5f6617e55fc0af4dea5
Author: Josh Elser <>
Date:   2015-11-07T22:31:58Z

    Add a base TestCase that performs verification on the TestOutput.

commit 2f71336d683c94106997a2e2ed2c2471c8c6b707
Author: Josh Elser <>
Date:   2015-11-07T22:52:30Z

    Add a utility to dynamically find all provided IteratorTestCases.

commit b00a1b794b1d0787cdb43185b917b5e7b7b5cff0
Author: Josh Elser <>
Date:   2015-11-08T08:03:44Z

    DeepCopy and ReSeek test cases.

commit 273f1f5c6e026a2bc0810e9f5bf22a7c98bf9e13
Author: Josh Elser <>
Date:   2015-11-08T08:05:57Z

    More docs.


> create an iterator fuzz tester
> ------------------------------
>                 Key: ACCUMULO-626
>                 URL:
>             Project: Accumulo
>          Issue Type: New Feature
>          Components: test
>            Reporter: Eric Newton
>            Assignee: Josh Elser
> Users often write iterators without fully understanding its limits and lifetime. Accumulo
should have an iterator fuzz-tester which will take user data and run the iterator under extreme
conditions.  For example, it should re-create and re-seek the iterator with every key returned.
 It could automatically compare results of such a run with the naive run, which seeks to the
beginning and scans all the data.

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