CMake Cookbook

How to do it

We will introduce small modifications in the CMake code, as shown here:

1. Only one additional line is added in the top-level CMakeLists.txt, since we will include a module located under cmake:

list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")

2. We keep src/CMakeLists.txt unmodified.
3. In tests/CMakeLists.txt, we move the add_catch_test function definition to cmake/testing.cmake and define two tests:

add_executable(cpp_test test.cpp)target_link_libraries(cpp_test sum_integers)include(testing)add_catch_test(  NAME    short  LABELS    short    cpp_test  COST    1.5  )add_catch_test(  NAME    long  LABELS    long    cpp_test  COST    2.5  )

4. The add_catch_test function is now defined in cmake/testing.cmake:

function(add_catch_test) set(options) ...