[rfc] add a TestFactory class or concept

[Alexander Belchenko]

Aaron Bentley пишет:
> I have fallen behind on reading bugs, so I was unaware of it.  There are
> currently 7705 unread messages in my bzr bugs folder, which is pretty
> daunting.

Yep, I understand. I've unsubscribed from bugmails age ago for this reason.

I can subscribe the bug to you or even assign it to you, but if you 
don't read those mails anyway I suppose it won't help.