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From "Nick Pellow (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-1769) Fix wrong clover analysis because of backwards-tests, upgrade clover to 2.4.3 or better
Date Thu, 06 Aug 2009 01:11:14 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12739854#action_12739854
] 

Nick Pellow commented on LUCENE-1769:
-------------------------------------

I've provided a download of the jar, just for you [here|http://www.atlassian.com/software/clover/downloads/binary/clover-2.6.0-dev.jar].
Please note that this is a dev build.

This is a development build of Clover 2.6 . It has support for recognizing the org.apache
site license attached to this issue.
Simply put the clover.jar and the attached clover.license in the same directory as each other,
and point the taskdef task to use
the clover.jar for the classpath attribute.

> Fix wrong clover analysis because of backwards-tests, upgrade clover to 2.4.3 or better
> ---------------------------------------------------------------------------------------
>
>                 Key: LUCENE-1769
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1769
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Build
>    Affects Versions: 2.9
>            Reporter: Uwe Schindler
>         Attachments: clover.license, LUCENE-1769.patch, LUCENE-1769.patch, nicks-LUCENE-1769.patch
>
>
> This is a followup for [http://www.lucidimagination.com/search/document/6248d6eafbe10ef4/build_failed_in_hudson_lucene_trunk_902]
> The problem with clover running on hudson is, that it does not instrument all tests ran.
The autodetection of clover 1.x is not able to find out which files are the correct tests
and only instruments the backwards test. Because of this, the current coverage report is only
from the backwards tests running against the current Lucene JAR.
> You can see this, if you install clover and start the tests. During test-core no clover
data is added to the db, only when backwards-tests begin, new files are created in the clover
db folder.
> Clover 2.x supports a new ant task, <testsources> that can be used to specify the
files, that are the tests. It works here locally with clover 2.4.3 and produces a really nice
coverage report, also linking with test files work, it tells which tests failed and so on.
> I will attach a patch, that changes common-build.xml to the new clover version (other
initialization resource) and tells clover where to find the tests (using the test folder include/exclude
properties).
> One problem with the current patch: It does *not* instrument the backwards branch, so
you see only coverage of the core/contrib tests. Getting the coverage also from the backwards
tests is not easy possible because of two things:
> - the tag test dir is not easy to find out and add to <testsources> element (there
may be only one of them)
> - the test names in BW branch are identical to the trunk tests. This completely corrupts
the linkage between tests and code in the coverage report.
> In principle the best would be to generate a second coverage report for the backwards
branch with a separate clover DB. The attached patch does not instrument the bw branch, it
only does trunk tests.

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