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https://issues.apache.org/jira/browse/LUCENE-3357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13082011#comment-13082011
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Robert Muir commented on LUCENE-3357:
-------------------------------------
I wouldn't worry about the scores being negative necessarily myself: there is
nothing wrong with this.
But we should fix the Nan/Inf score problems.
Also: some of the stats that are newer in Lucene will get stupid results with
PreFlex codec, it doesnt support them.
In my opinion add the following to the test's setup:
{noformat}
assumeFalse("test cannot run with PreFlex codec !",
"PreFlex".equals(CodecProvider.getDefault().getDefaultFieldCodec()));
{noformat}
and I can help in the places where EasySim collects these stats, for example I
think we should add checks in case totalTermFreq = -1, and throw UOE here
instead.
> Unit and integration test cases for the new Similarities
> --------------------------------------------------------
>
> Key: LUCENE-3357
> URL: https://issues.apache.org/jira/browse/LUCENE-3357
> Project: Lucene - Java
> Issue Type: Sub-task
> Components: core/query/scoring
> Affects Versions: flexscoring branch
> Reporter: David Mark Nemeskey
> Assignee: David Mark Nemeskey
> Priority: Minor
> Labels: gsoc, gsoc2011, test
> Fix For: flexscoring branch
>
> Attachments: LUCENE-3357.patch, LUCENE-3357.patch, LUCENE-3357.patch,
> LUCENE-3357.patch, LUCENE-3357.patch, LUCENE-3357.patch, LUCENE-3357.patch
>
>
> Write test cases to test the new Similarities added in
> [LUCENE-3220|https://issues.apache.org/jira/browse/LUCENE-3220]. Two types of
> test cases will be created:
> * unit tests, in which mock statistics are provided to the Similarities and
> the score is validated against hand calculations;
> * integration tests, in which a small collection is indexed and then
> searched using the Similarities.
> Performance tests will be performed in a separate issue.
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