[CMake] test depending on code compilation

[Franck Houssen]

----- Mail original -----
> De: "Mario Werner" <mario.werner at iaik.tugraz.at>
> À: cmake at cmake.org
> Envoyé: Jeudi 11 Janvier 2018 16:27:18
> Objet: Re: [CMake] test depending on code compilation
> 
> On 2018-01-10 10:47, Franck Houssen wrote:
> > [snip]
> > 
> > The 2 unexpected problems I have left are:
> > 1) mytestexe is compiled everytime I type "make" which is a solution but
> > is not really what I am looking for (also compiled when I type "make
> > check" which is expected).
> >     => is there a way for make not to compile mytestexe (note I didn't
> > added ALL in add_custom_target so I am not sure to know why make builds
> > mytestexe)
> 
> You have to excluded mytestexe from the ALL target if you do not want
> that it gets built by default [1]. (e.g., add EXCLUDE_FROM_ALL to
> add_executable [2])
> 

OK !

> > 2) Also the verbosity is broken with check : make test ARGS="-V" is
> > verbose , but, make check ARGS="-V" is not.
> >     => how to deal with that ?
> > 
> > 
> 
> Can't help you there. I usually simply use `make check` to build and run
> the full test suite in order to get an overview. Afterwards, I directly
> call `ctest` with the desired arguments, for example when triaging a bug.
> 

In travis a make check ARGS="-V" could be convenient to see output of tests while they run (understand what is wrong when if it fails - you can't get files from travis).
Anyway, that not so blocking.

> HTH,
> Mario
> 
> 
> [1] https://cmake.org/cmake/help/v3.0/prop_tgt/EXCLUDE_FROM_ALL.html
> [2]
> https://cmake.org/cmake/help/v3.0/command/add_executable.html?highlight=EXCLUDE_FROM_ALL
> 
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