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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 Wed, 05 Aug 2009 09:02:15 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12739380#action_12739380
] 

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

Hi Uwe,

Thanks for confirming that error. It was definitely a problem with Clover not correctly handling
a unicode 4.1 character in the source file.
Clover was incorrectly asserting that if Character.isDefined(); returns false, then the character
is illegal. That method only returns true for unicode Unicode 4.0 characters in java 1.5,
and 1.6 I believe. I have changed the check to Character.isValidCodePoint http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Character.html#isValidCodePoint(int)
which fixes the problem.

So, I will get you a development build of Clover 2.6 with this fix and also with support for
the org.apache site license by the end of this week.


I reviewed the patch, but didn't test it out. It looks good.
We could drop the encoding parameter on clover-setup. It was me trying to fix the above mentioned
bug.

Cheers,
Nick


> 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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