[CMake] Problem measuring coverage in CTest scripts

[Clément Gregoire]

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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