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From "Hoss Man (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2598) allow tests to use different Directory impls
Date Tue, 24 Aug 2010 18:40:16 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2598?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12902007#action_12902007
] 

Hoss Man commented on LUCENE-2598:
----------------------------------

bq. because most of them create a new directory for writing in setUp() etc. 

but it does seem like it would be useful for tests where only the setUp method is expected
to create the index, and the rest of the code tested is expected to be "read only" .. at a
naive level the setUp method of tests for "read only" functionality could unconditionally
wrap the underlying Directory in a ReadOnlyDirectory once it's all finished ... but that seems
like it could be done (for the tests that want it) independently of this. (new Jira?)

> allow tests to use different Directory impls
> --------------------------------------------
>
>                 Key: LUCENE-2598
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2598
>             Project: Lucene - Java
>          Issue Type: Test
>          Components: Build
>    Affects Versions: 3.1, 4.0
>            Reporter: Robert Muir
>            Assignee: Robert Muir
>             Fix For: 3.1, 4.0
>
>         Attachments: LUCENE-2598.patch, LUCENE-2598.patch, LUCENE-2598.patch, LUCENE-2598.patch,
LUCENE-2598.patch, LUCENE-2598.patch, LUCENE-2598.patch
>
>
> Now that all tests use MockRAMDirectory instead of RAMDirectory, they are all picky like
windows and force our tests to
> close readers etc before closing the directory.
> I think we should do the following:
> # change new MockRAMDIrectory() in tests to .newDirectory(random)
> # LuceneTestCase[J4] tracks if all dirs are closed at tearDown and also cleans up temp
dirs like solr.
> # factor out the Mockish stuff from MockRAMDirectory into MockDirectoryWrapper
> # allow a -Dtests.directoryImpl or simpler to specify the default Directory to use for
tests: default being "random"
> i think theres a chance we might find some bugs that havent yet surfaced because they
are easier to trigger with FSDir
> Furthermore, this would be beneficial to Directory-implementors as they could run the
entire testsuite against their Directory impl, just like codec-implementors can do now.

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