116 lines
4.9 KiB
CMake
116 lines
4.9 KiB
CMake
# Assertion macro
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macro(check desc actual expect)
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if(NOT "x${actual}" STREQUAL "x${expect}")
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message(SEND_ERROR "${desc}: got \"${actual}\", not \"${expect}\"")
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endif()
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endmacro()
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# General test of all component types given an absolute path.
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set(filename "/path/to/filename.ext.in")
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set(expect_DIRECTORY "/path/to")
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set(expect_NAME "filename.ext.in")
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set(expect_EXT ".ext.in")
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set(expect_NAME_WE "filename")
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set(expect_PATH "/path/to")
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foreach(c DIRECTORY NAME EXT NAME_WE PATH)
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get_filename_component(actual_${c} "${filename}" ${c})
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check("${c}" "${actual_${c}}" "${expect_${c}}")
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list(APPEND non_cache_vars actual_${c})
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endforeach()
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# Test Windows paths with DIRECTORY component and an absolute Windows path.
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get_filename_component(test_slashes "c:\\path\\to\\filename.ext.in" DIRECTORY)
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check("DIRECTORY from backslashes" "${test_slashes}" "c:/path/to")
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list(APPEND non_cache_vars test_slashes)
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get_filename_component(test_winroot "c:\\filename.ext.in" DIRECTORY)
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check("DIRECTORY in windows root" "${test_winroot}" "c:/")
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list(APPEND non_cache_vars test_winroot)
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# Test finding absolute paths.
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get_filename_component(test_absolute "/path/to/a/../filename.ext.in" ABSOLUTE)
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check("ABSOLUTE" "${test_absolute}" "/path/to/filename.ext.in")
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get_filename_component(test_absolute "/../path/to/filename.ext.in" ABSOLUTE)
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check("ABSOLUTE .. in root" "${test_absolute}" "/path/to/filename.ext.in")
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get_filename_component(test_absolute "c:/../path/to/filename.ext.in" ABSOLUTE)
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check("ABSOLUTE .. in windows root" "${test_absolute}" "c:/path/to/filename.ext.in")
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list(APPEND non_cache_vars test_absolute)
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# Test the PROGRAM component type.
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get_filename_component(test_program_name "/ arg1 arg2" PROGRAM)
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check("PROGRAM with no args output" "${test_program_name}" "/")
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get_filename_component(test_program_name "/ arg1 arg2" PROGRAM
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PROGRAM_ARGS test_program_args)
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check("PROGRAM with args output: name" "${test_program_name}" "/")
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check("PROGRAM with args output: args" "${test_program_args}" " arg1 arg2")
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list(APPEND non_cache_vars test_program_name)
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list(APPEND non_cache_vars test_program_args)
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# Test CACHE parameter for most component types.
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get_filename_component(test_cache "/path/to/filename.ext.in" DIRECTORY CACHE)
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check("CACHE 1" "${test_cache}" "/path/to")
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# Make sure that the existing CACHE entry from previous is honored:
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get_filename_component(test_cache "/path/to/other/filename.ext.in" DIRECTORY CACHE)
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check("CACHE 2" "${test_cache}" "/path/to")
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unset(test_cache CACHE)
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get_filename_component(test_cache "/path/to/other/filename.ext.in" DIRECTORY CACHE)
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check("CACHE 3" "${test_cache}" "/path/to/other")
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list(APPEND cache_vars test_cache)
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# Test the PROGRAM component type with CACHE specified.
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# 1. Make sure it makes a cache variable in the first place for basic usage:
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get_filename_component(test_cache_program_name_1 "/ arg1 arg2" PROGRAM CACHE)
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check("PROGRAM CACHE 1 with no args output" "${test_cache_program_name_1}" "/")
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list(APPEND cache_vars test_cache_program_name_1)
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# 2. Set some existing cache variables & make sure the function returns them:
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set(test_cache_program_name_2 DummyProgramName CACHE FILEPATH "")
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get_filename_component(test_cache_program_name_2 "/ arg1 arg2" PROGRAM CACHE)
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check("PROGRAM CACHE 2 with no args output" "${test_cache_program_name_2}"
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"DummyProgramName")
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list(APPEND cache_vars test_cache_program_name_2)
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# 3. Now test basic usage when PROGRAM_ARGS is used:
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get_filename_component(test_cache_program_name_3 "/ arg1 arg2" PROGRAM
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PROGRAM_ARGS test_cache_program_args_3 CACHE)
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check("PROGRAM CACHE 3 name" "${test_cache_program_name_3}" "/")
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check("PROGRAM CACHE 3 args" "${test_cache_program_args_3}" " arg1 arg2")
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list(APPEND cache_vars test_cache_program_name_3)
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list(APPEND cache_vars test_cache_program_args_3)
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# 4. Test that existing cache variables are returned when PROGRAM_ARGS is used:
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set(test_cache_program_name_4 DummyPgm CACHE FILEPATH "")
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set(test_cache_program_args_4 DummyArgs CACHE STRING "")
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get_filename_component(test_cache_program_name_4 "/ arg1 arg2" PROGRAM
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PROGRAM_ARGS test_cache_program_args_4 CACHE)
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check("PROGRAM CACHE 4 name" "${test_cache_program_name_4}" "DummyPgm")
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check("PROGRAM CACHE 4 args" "${test_cache_program_args_4}" "DummyArgs")
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list(APPEND cache_vars test_cache_program_name_4)
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list(APPEND cache_vars test_cache_program_name_4)
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# Test that ONLY the expected cache variables were created.
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get_cmake_property(current_cache_vars CACHE_VARIABLES)
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get_cmake_property(current_vars VARIABLES)
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foreach(thisVar ${cache_vars})
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if(NOT thisVar IN_LIST current_cache_vars)
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message(SEND_ERROR "${thisVar} expected in cache but was not found.")
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endif()
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endforeach()
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foreach(thisVar ${non_cache_vars})
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if(thisVar IN_LIST current_cache_vars)
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message(SEND_ERROR "${thisVar} unexpectedly found in cache.")
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endif()
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if(NOT thisVar IN_LIST current_vars)
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# Catch likely typo when appending to non_cache_vars:
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message(SEND_ERROR "${thisVar} not found in regular variable list.")
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endif()
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endforeach()
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