Hi, Duncan:
Thanks for the warning. Can you give me a hint of which release
might require this? In particular, will it be R 2.10.0, coming quite
soon?
Thanks,
Spencer
Duncan Murdoch wrote:
On 05/10/2009 4:39 PM, spencerg wrote:
I put unit test in the examples, using "\dontshow" to hide
"stopifnot". Many help pages I've written contain code like the
following:
A <- functionDocumentedHere()
B <- manuallyComputedAnswer
\dontshow{stopifnot(}
all.equal(A, B)
\dontshow{)}
This will fail in a future release of R, because those aren't valid
expressions within \dontshow{}, which expects R code. You can achieve
the same effect using the clearer
all.equal(A,B)
\dontshow{ stopifnot(isTrue(.Last.value)) }
Duncan Murdoch
I think it helps the documentation to include an example
comparing a special case computed using a function with a manual
computation. However, "stopifnot" contributes nothing to user
understanding, so I hide it. One could also use "\dontshow" to hide
entire examples that check trivial details you think would not
interest users.
Spencer
Seth Falcon wrote:
Hi,
On Mon, Oct 5, 2009 at 12:01 PM, Blair Christian
<blair.christ...@gmail.com> wrote:
I'm interested in putting some unit tests into an R package I'm
building. I have seen assorted things such as Runit library, svUnit
library, packages
with 'tests' directories, etc
I grep'd "unit test" through the writing R extensions manual but
didn't find
anything. Are there any suggestions out there? Currently I have
several (a lot?) classes/methods that I keep tinkering with, and I'd
like to run a script frequently to check that I don't cause any
unforeseen problems.
I've had good experiences using RUnit. To date, I've mostly used
RUnit by putting tests in inst/unitTests and creating a Makefile there
to run the tests. You should also be able to use RUnit in a more
interactive fashion inside an interactive R session in which you are
doing development.
The vignette in svUnit has an interesting approach for integrating
unit testing into R CMD check via examples in an Rd file within the
package.
+ seth
--
Spencer Graves, PE, PhD
President and Chief Operating Officer
Structure Inspection and Monitoring, Inc.
751 Emerson Ct.
San José, CA 95126
ph: 408-655-4567
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