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https://issues.apache.org/jira/browse/SOLR-3430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13268162#comment-13268162
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Mikhail Khludnev commented on SOLR-3430:
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James,
I agree that DB is better than Mock. I'd like to confirm that this approach
covers query repetitions issues too. In SOLR-3360 we had a bug when the same
query runs many times. Blind automated tests with in-memory DB won't cover such
bugs - it will just run same sql 10 times w/o any problems. Will we have a kind
of utility wrapper prevents same query run again and again?
Regards
> DIH: More-realistic testing & subsequent bug fix
> ------------------------------------------------
>
> Key: SOLR-3430
> URL: https://issues.apache.org/jira/browse/SOLR-3430
> Project: Solr
> Issue Type: Bug
> Components: contrib - DataImportHandler
> Affects Versions: 3.6, 4.0
> Reporter: James Dyer
> Assignee: James Dyer
> Priority: Minor
> Fix For: 4.0, 3.6.1
>
> Attachments: SOLR-3430.patch, SOLR-3430.patch, derby-10.8.2.2.jar,
> derby-10.8.2.2.jar.sha1, derby-LICENSE-ASL.txt, derby-NOTICE.txt
>
>
> A couple of people have mentioned on the users' list that 3.6 changes break
> CachedSqlEntityProcessor. Part of the problem is the current DIH tests are
> not realistic: they mostly test 1 class at a time and not the full
> end-to-end interactions between components.
> This is a test of (Cached) SqlEntityProcessor using an in-memory Derby
> database. This hopefully is a first step in creating a series of new,
> more-rigorous DIH tests, which is needed in order to make changes without
> worry.
> This also revealed a bug in SortedMapBackedCache, which is fixed also. I'm
> not sure this is the same bug causing problems for the 2 users but once
> committed I will post a reply on the users' list to see if they can try it.
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