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From Dominique Devienne <DDevie...@lgc.com>
Subject RE: JUnitReport - more info to display?
Date Fri, 01 Nov 2002 16:59:10 GMT
Sure is ;-) I've heard good things about JProbe Coverage, and I should
probably have mentioned it as a possible candidate. Sorry about that!

On the other hand, I've also heard tools in the JProbe family, although very
good, can be quite expensive... If indeed there's a substantial price
difference between Clover and JProbe Coverage, it then all depends on the
price one puts on dynamic runtime instrumentation...

So does anyone know the full price for a single license of each of these
tools?

And personally, I'd like to know *how* JProbe Coverage does runtime
instrumentation... I can see only two ways to do it, with are thru either a
custom classloader, and that requires an app that does not break when run
under such a custom classloader (!), or thru a custom JVM, which I would be
very wary off.

Or is there a third way I didn't envision, or is it simply magic???

Thanks, --DD

-----Original Message-----
From: Gordon Tyler [mailto:gordon.tyler@sitraka.com] 
Sent: Friday, November 01, 2002 10:39 AM
To: Ant Users List
Subject: Re: JUnitReport - more info to display?

Dominique Devienne wrote:
> A colleague of mine wrote a very smart static analyzer of the test code to
> figure out which calls it was making (by introspecting the bytecode), but
> even that is not enough to figure out what really gets called at runtime,
> which is necessarily a subset of the calls discovered in the bytecode (by
> direct calls), and doesn't take into account the interactions of the code
> tested itself. It's still a much better metric of the testing done than
just
> the number and names of the test methods... --DD

Although Clover has the disdvantage that it requires pre-instrumentation 
of your code, in contrast to something JProbe Coverage which does 
runtime instrumentation.

Ciao,
Gordon

-- 
Gordon Tyler
Software Developer, R&D
Sitraka -- Performance is Mission Critical

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