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From Chuck Williams <>
Subject Re: SortTest failing
Date Tue, 26 Apr 2005 03:24:55 GMT
Otis Gospodnetic wrote:

>Hm, Erik is not alone with unit tests failing.  My HighlighterTest
>passes (I didn't do svn update today yet), but I see SortTest failing:
>    [junit] Testcase:
>testNormalizedScores(  FAILED
>    [junit] expected:<0.375> but was:<0.392445>
>    [junit] junit.framework.AssertionFailedError: expected:<0.375> but
>    [junit]     at
>    [junit]     at
>Line 365 is this:
>assertSameValues (scoresA, getScores(,sort)));
>And this makes me think that this broke during my last commit of Wolf's
>patch for MultiSearcher and docFreq stuff.  However I did run 'ant
>test' before commit and did see BUILD SUCCESSFUL, so I'm not 100% sure.
>Anyone else seeing this error?
Otis, I think that is a bug in the test case that Wolf's patch has 
exposed. It creates an index consisting of two copies of "full". This 
should be equivalent to an index where every document is duplicated 
(occurs twice), not to an index where each document occurs only once. 
With the new correct idf normalizaiton, this increases all the docfreq's 
for the terms, which changes the score. Scores on the duplicated index 
should not be the same as scores on the unduplicated index.


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