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macro(check desc actual expect)
if(NOT "x${actual}" STREQUAL "x${expect}")
message(SEND_ERROR "${desc}: got \"${actual}\", not \"${expect}\"")
endif()
endmacro()
set(filename "/path/to/filename.ext.in")
set(expect_PATH "/path/to")
set(expect_NAME "filename.ext.in")
set(expect_EXT ".ext.in")
set(expect_NAME_WE "filename")
foreach(c PATH NAME EXT NAME_WE)
get_filename_component(actual_${c} "${filename}" ${c})
check("${c}" "${actual_${c}}" "${expect_${c}}")
endforeach()
get_filename_component(test_slashes "c:\\path\\to\\filename.ext.in" PATH)
check("PATH from backslashes" "${test_slashes}" "c:/path/to")
get_filename_component(test_winroot "c:\\filename.ext.in" PATH)
check("PATH in windows root" "${test_winroot}" "c:/")
get_filename_component(test_absolute "/path/to/a/../filename.ext.in" ABSOLUTE)
check("ABSOLUTE" "${test_absolute}" "/path/to/filename.ext.in")
get_filename_component(test_cache "/path/to/filename.ext.in" PATH CACHE)
check("CACHE 1" "${test_cache}" "/path/to")
get_filename_component(test_cache "/path/to/other/filename.ext.in" PATH CACHE)
check("CACHE 2" "${test_cache}" "/path/to")
unset(test_cache CACHE)
get_filename_component(test_cache "/path/to/other/filename.ext.in" PATH CACHE)
check("CACHE 3" "${test_cache}" "/path/to/other")
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