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https://issues.apache.org/jira/browse/LUCENENET-288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12779810#action_12779810
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Michael Garski commented on LUCENENET-288:
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Getting closer...
The issue is caused somewhere in the QueryUtils.WrapReader & WrapSearcher
methods - if they are modified so that the 'dummy' indexes that are empty are
never created and the Wrap* methods return immediately just wrapping the
arguments and returning them then everything is good.
So no issue in the codebase, just in the conditions used to set up the test.
> Function.TestCustomScoreQuery
> -----------------------------
>
> Key: LUCENENET-288
> URL: https://issues.apache.org/jira/browse/LUCENENET-288
> Project: Lucene.Net
> Issue Type: Bug
> Reporter: Michael Garski
>
> Three of the tests in TestCustomScoreQuery are not passing due to the
> comparison between the explanation score and the hit score do not fall within
> the tolerance of +-0.00005f. Altering the tolerance to 0.0005f causes all of
> the tests to pass, so there appears to be a subtle issue in how the scores
> are being calculated.
> A similar test exists in 2.4 that passes with the tolerance of 0.00005f,
> which to me rules out floating point calculation differences.
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