[jira] Updated: (LUCENE-2554) preflex codec doesn't order terms correctly

["Michael McCandless (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-2554?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael McCandless updated LUCENE-2554:
---------------------------------------

    Attachment: LUCENE-2554.patch

Attached VERY rough patch.

Mosts tests pass but at least 2 don't.

I think the fixes to surrogates dance are close to correct.  The new random test (TestSurrogates) is good at finding bugs there...

The hack I have to forcefully use the test-only preflexrw codec needs to be made more generic, so that we can randomly pick the default codec to use for each test.

> preflex codec doesn't order terms correctly
> -------------------------------------------
>
>                 Key: LUCENE-2554
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2554
>             Project: Lucene - Java
>          Issue Type: Test
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>             Fix For: 4.0
>
>         Attachments: LUCENE-2554.patch
>
>
> The surrogate dance in the preflex codec (which must dynamically remap terms from UTF16 order to unicode code point order) is buggy.
> To better test it, I want to add a test-only codec, preflexrw, that is able to write indices in the pre-flex format.  Then we should also fix tests to randomly pick codecs (including preflexrw) so we better test all of our codecs.

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