srfi-64 status?

[Aleix Conchillo Flaqué]

Hi,

I was looking how to do unit tests in Guile and I found the unit test
module in guile-lib but also a recommendation from Ludovic to use
srfi-64.

http://lists.gnu.org/archive/html/guile-user/2010-12/msg00061.html

Then, I also found some work done last year:

http://lists.gnu.org/archive/html/guile-user/2012-04/msg00006.html

What's the status of this?

What's the current best way to perform unit testing in Guile?

Thanks,

Aleix