[R] R package tests

[ml-r-help at epigenomics.com]

Hi Nathan,

in addition to what others have already mentioned there is some documentation
in the Writing R Extensions Manual:
- on the supported structure of packages, indicating where test code might be added
 http://stat.ethz.ch/R-manual/R-patched/doc/manual/R-exts.html#Package-subdirectories
- and the recommended standard approach to check a package
http://stat.ethz.ch/R-manual/R-patched/doc/manual/R-exts.html#Checking-and-building-packages

and a wiki article on how to combine the standard check (viz R CMD check) with any of the
unit testing approaches
http://wiki.r-project.org/rwiki/doku.php?id=developers:runit&s=unit%20test

Examples for the standard approach employed by R can be found
in the R source repository
https://svn.r-project.org/R/trunk/src/library/stats/tests/

and for unit test based checking
e.g. Rmetrics
http://r-forge.r-project.org/plugins/scmsvn/viewcvs.php/pkg/?root=rmetrics

or BioConductor examples
https://hedgehog.fhcrc.org/bioconductor/trunk/madman/Rpacks/Biobase/inst/UnitTests/
where you need the access info provided here
http://wiki.fhcrc.org/bioc/DeveloperPage


Regards,

 Matthias

Nathan S. Watson-Haigh wrote:
> I was wondering if anyone could point me in the right direction for reading up on writing tests in
> R. I'm writing some functions for inclusion into a package and would like to test them to ensure
> they're doing what I expect them to do.
> 
> Are these approaches used for testing packages in CRAN?
> 
> Cheers,
> Nathan
> 
> 

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