Testing development code?

Dear Prof. Ripley: 
<in line> 
Prof Brian Ripley wrote:

On Fri, 6 Jun 2008, Spencer Graves wrote:

Hi, R Core Team:
    How do you test the latest changes to the core R code?  Is it just "R 
CMD check"?  Or do you use other tools, like the perl "prove" module?
    I ask, because I'm about to start developing routine testing for other 
(non-R) software, for which I can't do "R CMD check", and I'd like to know 
what you do.

'make check-devel', 'make check-all' and regression tests of (essentially) 
R CMD check over CRAN/BioC (the latter in arrears via daily checking unless 
the change is thought likely to break things).

If we were starting from scatch we would probably use a unit-testing 
framework such as provided by Runits.

    How can I find information on 'Runits'?  Google led me to 
'http://en.wikipedia.org/wiki/Unit_test'.  The other hits I got did not seem 
as informative as Wikipedia.

    Thanks for the reply.  This is helpful.      Spencer Graves

C-based projects often use DejaGnu and similar -- scripting languages 
usually use themselves to run their test suites.