A test suite for DRb

I’ve been working on a version of distributed Ruby that makes use of
EventMachine (http://rubyforge.org/projects/emdrb) and so far, it
seems to work well enough for most of the obvious stuff I use
distributed Ruby for. I’ve also added extensions to it that allow one
to make asynchronous method calls and the ability to run server code
in an event-driven fashion (experimental). However, the library is
also supposed to be a drop-in replacement for the traditional DRb, and
I imagine there must be a fair bit of functionality that I’m still
missing or stuff that doesn’t work quite right. Is there a bunch of
unit tests out there that can be used to put DRb through its paces?