There is also a way to write C++ unit test with the catch framework and
have them added to the R test suite: https://rdrr.io/cran/
testthat/man/use_catch.html
Note this was originally built with integration with testthat in mind but
you can call it from any R test suite (docs on doing this are on the linked
to page).
On Mon, Jun 12, 2017 at 3:47 PM, Wolf Vollprecht <w.vollprecht at gmail.com>
wrote:
RInside seems to have done the trick! Awesome.
I have no strong opinions on how to implement the tests. The only reason
why I wanted the embedded R solution is because we use it that way with
Python and Julia, and it gives us "raw C++" tests. In the future, we might
also have a xtensor-test package, that we can easily use to write tests for
all three languages (in C++) at the same time (through metaprogramming).
But we will definitly also add tests in R (as we have done with Python
and Julia, too).
It would be awesome if you have a chance to add some to your variant.
I am going to fix up the C++ tests that I've added to the "big" PR and
make sure that at least those we have right now work fine to establish a
baseline to work from.
Cheers!
Wolf
2017-06-12 4:11 GMT-07:00 Dirk Eddelbuettel <edd at debian.org>:
On 12 June 2017 at 11:22, Romain Francois wrote:
| You might be looking for RInside.
Exactly correct in the narrow sense of 'how to get R going from C++'.
On 12 June 2017 at 01:11, Wolf Vollprecht wrote:
| I am trying to run C++ tests from C++ directly.
| It looks like I need to start the R interpreter for memory management
etc.
The wider, normal sense of the question is, I suspect, how to add unit
tests
to an R package such as your xtensor-r. Give me a day or two and I may
get a
chance to add this to my variant of your project.
You generally do NOT want force an embedded R interpreter __as any Rcpp
project is already called from R__. Use CRAN as a repository of (as of
today) 1045 example packages. I don't think a single one embeds R for
testing. The RUnit (older, used by Rcpp itself) and testthat frameworks
are
popular.
Dirk
--
http://dirk.eddelbuettel.com | @eddelbuettel | edd at debian.org