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From "nkeywal (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-7211) Improve hbase ref guide for the testing part.
Date Thu, 22 Nov 2012 15:18:58 GMT
nkeywal created HBASE-7211:
------------------------------

             Summary: Improve hbase ref guide for the testing part.
                 Key: HBASE-7211
                 URL: https://issues.apache.org/jira/browse/HBASE-7211
             Project: HBase
          Issue Type: Bug
          Components: documentation
    Affects Versions: 0.96.0
            Reporter: nkeywal
            Assignee: nkeywal
            Priority: Minor


Here is some stuff I saw. I will propose a fix in a week or so, please add the comment or
issues you have in mind.

??15.6.1. Apache HBase Modules??
=> We should be able to use categories in all modules. The default should be small; but
any test manipulating the time needs to be in a specific jvm (hence medium), so it's not always
related to minicluster.

??15.6.3.6. hbasetests.sh??
=> We can remove this chapter, and the script
 The script is not totally useless, but I think nobody actually uses it.

=> Add a chapter on flakiness.
Some tests are, unfortunately, flaky. While there number decreases, we still have some. Rules
are:
- don't write flaky tests! :-)
- small tests cannot be flaky, as it blocks other test execution. Corollary: if you have an
issue with a small test, it's either your environment either a severe issue.
- rerun the test a few time to validate, check the ports and file descriptors used.

??mvn test -P localTests -Dtest=MyTest??
=> We could actually activate the localTests profile whenever -Dtest is used. If we do
that, we can remove the reference from localTests in the doc.

??mvn test -P runSmallTests?? ??mvn test -P runMediumTests??
=> I'm not sure it's actually used. We could remove them from the pom.xml (and the doc).

??The HBase build uses a patched version of the maven surefire plugin?? 
=> Hopefully, we will be able to remove this soon :-)


 ??Integration tests are described TODO: POINTER_TO_INTEGRATION_TEST_SECTION??
 => Should be documented

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