The new aspects in this recipe are the named arguments so we can focus on the cmake/testing.cmake module. CMake provides the cmake_parse_arguments command, which we call with the function name (add_catch_test) options (in our case, none), one-value arguments (here, NAME and COST), and multi-value arguments (here, LABELS, DEPENDS, and REFERENCE_FILES):
function(add_catch_test) set(options) set(oneValueArgs NAME COST) set(multiValueArgs LABELS DEPENDS REFERENCE_FILES) cmake_parse_arguments(add_catch_test "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN} ) ...endfunction()
The cmake_parse_arguments command parses options and arguments, and defines the following in our case:
- add_catch_test_NAME
- add_catch_test_COST
- add_catch_test_LABELS ...
