Having good test coverage of the plugin would be very useful for obvious reasons. There are currently no tests. The hardest part would be coming up with a way to test the gui. Need to take a look at how other eclipse plugins achieve this and follow suit. The best strategy would probably be to make a few tests to illustrate how it's done, then add tests for every area of the code that gets touched as a result of enhancement/bug-fixing/whatever, and hopefullly reach a decent coverage in a bit.
I have started writing extensive junit tests for all the new code that I write in a new org.eclipse.team.bugzilla.testing plugin/package. I will use this bug to track what still needs testing, at this point it's everything. Once I start adding tests to other areas of the code I'll use this as a tracker.
User klee's account has been closed
We are now shipping Mylyn which obsoletes the old bugzilla plugin. Please open a request at bugs.eclipse.org against Mylyn if this issue persists. Thank you.