[Rd] unit testing framework for R?

A.J. Rossini rossini at blindglobe.net
Wed Mar 17 21:01:41 MET 2004

the package 'tests' directory is great, and we use it, but it isn't
unit testing in the same sense -- more regression tests (reactive
rather than proactive).


Tony Plate <tplate at blackmesacapital.com> writes:

> Packages can have a 'tests' directory, which can contain foo.R and
> foo.Rout.save files.  When packages are built (or checked) the output
> from running R with the commands in foo.R is compared with
> foo.Rout.save, and differences are reported.
> The "Writing R Extensions" manual discusses this a little.  It
> suggests: "Use R CMD check --help (Rcmd check --help on Windows) to
> obtain more information about the usage of the R package checker. A
> subset of the checking steps can be selected by adding flags."
> I've considered looking at several enhancements of the testing
> features: (1) automatically construct foo.R from foo.Rout.save (easy
> if the file only contains simple commands issued at the standard
> prompt); (2) allow specification of which test files to run; and (3)
> print summaries of test successes and failures at the end of running
> the selected tests.  Is there any wider interest in such features?
> -- Tony Plate
> At Wednesday 11:11 AM 3/17/2004, Paul Shannon wrote:
>>In a quick search of the R website just now, I found no mention of
>>a unit testing framework for R.  I hope to find something
>>in the style of Java's JUnit, or Python's unittest.  Is such a
>>thing available?
>>   - Paul Shannon
>>     Institute for Systems Biology
>>     Seattle
>>R-devel at stat.math.ethz.ch mailing list
> ______________________________________________
> R-devel at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-devel

rossini at u.washington.edu            http://www.analytics.washington.edu/ 
Biomedical and Health Informatics   University of Washington
Biostatistics, SCHARP/HVTN          Fred Hutchinson Cancer Research Center
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