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From "Dawid Weiss (Commented) (JIRA)" <>
Subject [jira] [Commented] (LUCENE-3762) Upgrade JUnit to 4.10, refactor state-machine of detecting setUp/tearDown call chaining.
Date Fri, 10 Feb 2012 15:14:59 GMT


Dawid Weiss commented on LUCENE-3762:

This already works on the branch I think, but I will re-check. I advanced junit4 branch and
integrated junit4 parallel balanced runner instead of the default ANT's junit and previous
set of macros. The code for this patch lives under LUCENE-3762.

I'll look for corner cases tonight and commit this in. Alternatively we could set up a parallel
jenkins build and commit this on a branch to see if everything is all right?
> Upgrade JUnit to 4.10, refactor state-machine of detecting setUp/tearDown call chaining.
> ----------------------------------------------------------------------------------------
>                 Key: LUCENE-3762
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Improvement
>            Reporter: Dawid Weiss
>            Assignee: Dawid Weiss
>            Priority: Trivial
>             Fix For: 3.6, 4.0
>         Attachments: LUCENE-3762.patch, LUCENE-3762.patch
> Both Lucene and Solr use JUnit 4.7. I suggest we move forward and upgrade to JUnit 4.10
which provides several infrastructural changes (serializable Description objects, class-level
rules, various tweaks). JUnit 4.10 also changes (or fixes, depends how you look at it) the
order in which @Before/@After hooks and @Rules are applied. This makes the old state-machine
in LuceneTestCase fail (because the order is changed).
> I rewrote the state machine and used a different, I think simpler, although Uwe may disagree
:), mechanism in which the hook methods setUp/ tearDown are still there, but they are empty
at the top level and serve only to detect whether subclasses chain super.setUp/tearDown properly
(if they override anything).
> In the long term, I would love to just get rid of public setup/teardown methods and make
them private (so that they cannot be overriden or even seen by subclasses) but this will require
changes to the runner itself.

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