> Unit testing is always a great idea, but I don't see how that 
> can test thread safety.  For example, how would a unit test 
> flag down a situation where you missed var scoping a variable 
> since these problems really only come out under load?  Is 
> load testing really the only way to be sure?

You're right, in that a typical unit test won't help you identify
synchronization issues. Load testing won't really identify them directly,
either - load testing is a blunt instrument, really. It might help you
identify the fact that you have problems, and the general vicinity of those
problems, but that's about it.

It might be possible to build a unit test harness that can test for thread
safety, but it strikes me as a difficult task in CF.

Dave Watts, CTO, Fig Leaf Software
http://www.figleaf.com/
phone: 202-797-5496
fax: 202-797-5444

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