[jbosscache-dev] JBoss Cache, JGroups and TestNG

[Bela Ban]

Manik Surtani wrote:
> Looking at using the thread counts and parallelizing test execution in 
> TestNG (as Bela has done with JGroups), one of my biggest stumbling 
> blocks is that quite a few tests end up starting and stopping 
> replicated JBoss Cache instances.  If these tests were to be run in 
> parallel, they would detect each other and produce unexpected results.
>
> Question for any of the JGroups guys on this list: how did you get 
> around this with creating JGroups channels, as I expect you have the 
> same problem?  Or do you not run tests that create/start channels in 
> parallel?

I haven't done this yet, but the idea is to change ChannelTestBase 
(superclass for all stack-dependent tests) to use a resource pool which 
manages multicast addresses and multicast ports (or TCP ports): each 
test removes a multicast address:port combo and returns it when done. 
Same for TCP ports.

Once we have a valid multicast address/port, the superclass will modify 
the transport properties *before* the channel is started.

I'll keep you posted when I'm done implementing this (should be end of 
next week).

-- 
Bela Ban
Lead JGroups / Clustering Team
JBoss - a division of Red Hat