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From Matt Benson <gudnabr...@yahoo.com>
Subject Re: <junit> slow?
Date Thu, 21 Dec 2006 15:01:50 GMT
Daniel:  Unfortunately, I never use forkmode="each"
since Stefan added "once" as an option.  I see the
slowness when forking once as well as when not
forking.  :)  Thanks anyway for your reply!

-Matt

--- Daniel Lindner <daniel.lindner@abas.de> wrote:

> Matt Benson wrote:
> > Has anyone ever noticed Ant running junit tests
> > exceedingly slowly, perhaps only in the case of
> > testsuites or nested testsuites?  I am looking at
> a
> > testsuite that has about 600 child tests, which
> all
> > run in < 2 seconds in Eclipse's JUnit runner, but
> take
> > 15-20 minutes in Ant.  :|
> 
> Just to make sure you don't fall in the same trap as
> me:
> Eclipse uses a "one jvm instance for all tests"
> approach. Thats as fast 
> as one can get.
> 
> If you run your tests on a network drive with the
> ant junit task, it 
> will severely slow down the execution. I guess these
> are caching effects 
> on eclipse's side.
> 
> The next thing to look for is the "forkmode"
> attribute of ant's junit 
> task. It defaults to "one jvm per test class"
> (perTest). That creates 
> additional overhead for every testclass you use.
> Using Testsuites 
> indicates many test classes, so i suggest you check
> that neither the 
> junit task nor the batchtest tasks (if any) have the
> default forkmode set.
>
http://ant.apache.org/manual/OptionalTasks/junit.html
> 
> I hope that helped. This issue bugged me for a
> while, i think the 
> default value for forkmode is broken - if you watch
> it from an 
> "eclipsed" point of view.
> 
> Sincerely,
> Daniel
> 
>
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