Test of separate_arguments

CMakeLists.txt

cmake_minimum_required(VERSION 3.12.0)

enable_testing()

if (${CMAKE_SYSTEM_NAME} MATCHES "Windows")
    set(IS_WINDOWS TRUE)
elseif (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
    set(IS_LINUX TRUE)
elseif (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
    set(IS_MACOSX TRUE)
endif()

function(cmake_list_to_envpath_old varname)
    message("(orig)     : ${${varname}}")
    if(IS_WINDOWS)
        string(REPLACE ";" "\;" ${varname} "${${varname}}")
        message("(replaced) : ${${varname}}")
    else()
        separate_arguments(${varname} NATIVE_COMMAND "${${varname}}")
        message("(separated): ${${varname}}")
        string(REPLACE "\;" ":" ${varname} "${${varname}}")
        message("(replaced) : ${${varname}}")
    endif()
    set(${varname} "${${varname}}" PARENT_SCOPE)
endfunction()

function(cmake_list_to_envpath_new varname)
    message("(orig)     : ${${varname}}")
    if(IS_WINDOWS)
        string(REPLACE ";" "\;" ${varname} "${${varname}}")
        message("(replaced) : ${${varname}}")
    else()
        string(REPLACE ";" ":" ${varname} "${${varname}}")
        message("(replaced) : ${${varname}}")
    endif()
set(${varname} "${${varname}}" PARENT_SCOPE)
endfunction()

# testOldSimple

message("########################################")
message("testOldSimple")

set(mypath
    "/first/path"
    "/second/path")
cmake_list_to_envpath_old(mypath)

add_test(
        NAME testOldSimple
        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
        COMMAND python -c "import os; expected = os.pathsep.join(['/first/path', '/second/path']); actual = os.environ['mypath']; print(actual); assert(expected == actual)"
    )

set_property(TEST testOldSimple APPEND PROPERTY ENVIRONMENT 
    "mypath=${mypath}")


# testOldSpaces

message("########################################")
message("testOldSpaces")

set(mypath
    "/first path/subdir"
    "/second/path")
cmake_list_to_envpath_old(mypath)

add_test(
        NAME testOldSpaces
        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
        COMMAND python -c "import os; expected = os.pathsep.join(['/first path/subdir', '/second/path']); actual = os.environ['mypath']; print(actual); assert(expected == actual)"
    )

set_property(TEST testOldSpaces APPEND PROPERTY ENVIRONMENT 
    "mypath=${mypath}")

# testNewSimple

message("########################################")
message("testNewSimple")

set(mypath
    "/first/path"
    "/second/path")
cmake_list_to_envpath_new(mypath)

add_test(
        NAME testNewSimple
        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
        COMMAND python -c "import os; expected = os.pathsep.join(['/first/path', '/second/path']); actual = os.environ['mypath']; print(actual); assert(expected == actual)"
    )

set_property(TEST testNewSimple APPEND PROPERTY ENVIRONMENT 
    "mypath=${mypath}")


# testNewSpaces

message("########################################")
message("testNewSpaces")

set(mypath
    "/first path/subdir"
    "/second/path")
cmake_list_to_envpath_new(mypath)

add_test(
        NAME testNewSpaces
        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
        COMMAND python -c "import os; expected = os.pathsep.join(['/first path/subdir', '/second/path']); actual = os.environ['mypath']; print(actual); assert(expected == actual)"
    )

set_property(TEST testNewSpaces APPEND PROPERTY ENVIRONMENT 
    "mypath=${mypath}")