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https://issues.apache.org/jira/browse/LUCENE-1843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12746638#action_12746638
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Uwe Schindler commented on LUCENE-1843:
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>From a private mail with Robert Muir:
yes, all of what you mentioned are problems, and testing for
attributes that should be there is good in my opinion too.
I noticed the shingle problem as well, it was strange to test
termAtt.toString() and expect position increments or types to appear
:/
one reason I asked about this, is at some point it would be nice to
try to factor test cases in lucene contrib. currently, they all have
same helper methods such as assertAnalyzesTo and this is silly in my
opinion.
On Sun, Aug 23, 2009 at 12:57 PM, Uwe Schindler<u...@thetaphi.de> wrote:
> There are more problems. The test with getAttribute is good, if you are
> really sure, if the attribute is really available and want assert this. In
> all other cases addAttribute should be used to consume a TokenStream. The
> changed ones were problematic, because they used foreign TokenStreams, do
> not for sure have all these attributes.
>
> I thought, all tests in contrib use LuceneTestCase as superclass, but they
> use the standard junit class. Because of that I did not notice when I put
> setOnlyUseNewAPI(true) into LuceneTestCase.setUp(), that they are run with
> the default false setting.
>
> Other problems in these tests are, that some (shingle tests) use
> TermAttribute.toString() which looks different if the attribute is
> implemented by TermAttributeImpl (newAPI=true) or Token (newAPI=false).
> Convert some tests to new TokenStream API, better support of cross-impl
> AttributeImpl.copyTo()
> ----------------------------------------------------------------------------------------------
>
> Key: LUCENE-1843
> URL: https://issues.apache.org/jira/browse/LUCENE-1843
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Analysis
> Affects Versions: 2.9
> Reporter: Uwe Schindler
> Assignee: Uwe Schindler
> Fix For: 2.9
>
> Attachments: LUCENE-1843.patch
>
>
> This patch converts some remaining tests to the new TokenStream API and
> non-deprecated classes.
> This patch also enhances AttributeImpl.copyTo() of Token and TokenWrapper to
> also support copying e.g. TermAttributeImpl into Token. The target impl must
> only support all interfaces but must not be of the same type. Token and
> TokenWrapper use optimized coping without casting to 6 interfaces where
> possible.
> Maybe the special tokenizers in contrib (shingle matrix and so on using
> tokens to cache may be enhanced by that). Also Yonik's request for optimized
> copying of states between incompatible AttributeSources may be enhanced by
> that (possibly a new issue).
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