[CMake] Problem measuring coverage in CTest scripts

[Anonymous Maarten]

I've searched in the history of the mailing list and I think it's the
same problem as this one:
https://public.kitware.com/pipermail/cmake/2017-September/066176.html

I cannot use the Ninja generator in my script.
When I change the generator to 'Unix Makefiles', the coverage works.

Thanks for responding!

Maarten

On 28 October 2017 at 09:24, Clément Gregoire <lectem at gmail.com> wrote:
> No since the point of cmake scripts is to build the project (for CI
> basically).
>
> I'm not sure what happens but I remember people having issues when using
> ninja? I'm not sure.
>
> You can have a look at
> https://github.com/Lectem/cpp-boilerplate
> I use a Ctest script for my Travis coverage build.
>
> The script is the following :
> https://github.com/Lectem/cpp-boilerplate/blob/master/cmake/CI.CTestScript.cmake
>
>
> Le sam. 28 oct. 2017 à 08:30, Edoardo Pasca <edo.paskino at gmail.com> a écrit
> :
>>
>> Afaik, Ctest should be run in the build directory. From your command it
>> seems you run it in the source. I'm not surprised it doesn't work.
>>
>> Edo
>>
>> On Oct 28, 2017 6:59 AM, "Maarten Anonymous" <anonymous.maarten at gmail.com>
>> wrote:
>>>
>>> Hey,
>>>
>>> I have a question about using CMake+CTest+CTest scripts for coverage
>>> tests.
>>>
>>> If I manually build the project and run "make ExperimantalCoverage" in a
>>> build folder,
>>> the coverage succeeds.
>>> If I run the coverage from within a CTest script,
>>> it fails.
>>>
>>> Am I forgetting something?
>>>
>>> A minimum example that exhibits my problem can be found at
>>> https://gist.github.com/madebr/07ebd0de59e789cd819643b58db25df9.
>>>
>>> This works:
>>> mkdir build && cd build && cmake .. && make && make test && make
>>> ExperimentalCoverage && cd ..
>>> This fails:
>>> ctest -S test.ctest
>>>
>>> Source listing:
>>> ###################
>>> #CMakeLists.txt:
>>> ###################
>>> cmake_minimum_required(VERSION 3.9)
>>> project(cmake_coverage)
>>>
>>> file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/main.c" "int main() {return 0;}")
>>>
>>> add_executable(main
>>>     main.c
>>>     )
>>>
>>> target_compile_options(main
>>>     PUBLIC
>>>         "-O0"
>>>         "-fprofile-arcs"
>>>         "-ftest-coverage"
>>>     )
>>>
>>> target_link_libraries(main
>>>     gcov
>>>     )
>>>
>>> include(CTest)
>>> enable_testing()
>>>
>>> add_test(NAME test
>>>     COMMAND main
>>>     )
>>>
>>> ##############
>>> # test.ctest:
>>> ##############
>>> set(CTEST_SOURCE_DIRECTORY "${CTEST_SCRIPT_DIRECTORY}")
>>> set(CTEST_BINARY_DIRECTORY "${CTEST_SCRIPT_DIRECTORY}/build/ctest")
>>>
>>> ctest_empty_binary_directory("${CTEST_BINARY_DIRECTORY}")
>>>
>>> set(CTEST_SITE "${CMAKE_SYSTEM_NAME}")
>>> set(CTEST_BUILD_NAME "experimental build")
>>>
>>> set(CTEST_CMAKE_GENERATOR "Ninja")
>>> set(CTEST_COVERAGE_COMMAND "gcov")
>>>
>>> ctest_start("Experimental")
>>> ctest_configure()
>>> ctest_build()
>>> ctest_test()
>>> ctest_coverage()
>>>
>>> ##############
>>> # CTestConfig.cmake:
>>> ##############
>>> set(CTEST_PROJECT_NAME "Simple ctest_coverage project")
>>>
>>>
>>>
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>>
>> --
>>
>> Powered by www.kitware.com
>>
>> Please keep messages on-topic and check the CMake FAQ at:
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>>
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>>
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