How to integrate CTest with Visual Studio?
I have been following the guide from:
However I fail to understand how to integrate the ctest mechanism in Visual Studio 2019. Right now my shared library (dll) is not found upon execution (only on Windows):
Here is the simple project setup:
> cat .\CMakeLists.txt
cmake_minimum_required (VERSION 3.8)
project (p LANGUAGES C)
set(CMAKE_C_VISIBILITY_PRESET hidden)
set(CMAKE_VISIBILITY_INLINES_HIDDEN 1)
add_subdirectory ("src")
enable_testing()
add_subdirectory ("tests")
And then src is simply:
> cat .\src\CMakeLists.txt
add_library(foo SHARED foo.c foo.h)
target_include_directories(
foo PUBLIC $<BUILD_INTERFACE:${p_SOURCE_DIR}/src>
)
finally tests is:
> cat .\tests\CMakeLists.txt
add_executable(footest footest.c)
target_link_libraries(footest PRIVATE foo)
add_test(NAME footest COMMAND footest)
Running the above under WSL works as expected:
$ make && make test
[ 50%] Built target foo
[100%] Built target footest
Running tests...
Test project /mnt/c/Users/malat/CMakeProject1/bin-gcc
Start 1: footest
1/1 Test #1: footest .......................... Passed 0.01 sec
100% tests passed, 0 tests failed out of 1
Total Test time (real) = 0.03 sec
Solution
A modern approach to this issue seems to TARGET_RUNTIME_DLLS:
Documentation suggest to use:
find_package(foo CONFIG REQUIRED) # package generated by install(EXPORT)
add_executable(exe main.c)
target_link_libraries(exe PRIVATE foo::foo foo::bar)
add_custom_command(TARGET exe POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy -t $<TARGET_FILE_DIR:exe> $<TARGET_RUNTIME_DLLS:exe>
COMMAND_EXPAND_LISTS
)
Watch out that the -t flag which seems to have been introduced lately.
Reference:
When using Visual Studio 2019, you may need to change the default cmake version used: