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cpp-utilities
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Common C++ classes and routines used by my applications such as argument parser, IO and conversion utilities
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cpp-utilities/cmake/modules/TestTarget.cmake

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cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)
if (NOT BASIC_PROJECT_CONFIG_DONE)
message(FATAL_ERROR "Before including the TestTarget module, the BasicConfig module must be included.")
endif ()
if (TEST_CONFIG_DONE)
message(FATAL_ERROR "Can not include TestTarget module when tests are already configured.")
endif ()
include(TestUtilities)
# find and link against cppunit if required (used by all my projects, so it is required by default)
if (NOT META_NO_CPP_UNIT)
# make cppunit library/include dir configurable
set(CPP_UNIT_LIB
NOTFOUND
CACHE FILEPATH "cppunit lib" FORCE)
set(CPP_UNIT_INCLUDE_DIR
NOTFOUND
CACHE FILEPATH "cppunit include dir" FORCE)
# set default for minimum version (only checked when using pkg-config)
if (NOT META_REQUIRED_CPP_UNIT_VERSION)
set(META_REQUIRED_CPP_UNIT_VERSION 1.13.0)
endif ()
# auto-detection: try to find via pkg-config first
if (NOT CPP_UNIT_LIB AND NOT CPP_UNIT_INCLUDE_DIR)
include(FindPkgConfig)
pkg_search_module(CPP_UNIT_CONFIG_${META_PROJECT_NAME} cppunit>=${META_REQUIRED_CPP_UNIT_VERSION})
if (CPP_UNIT_CONFIG_${META_PROJECT_NAME}_FOUND)
set(CPP_UNIT_LIB
"${CPP_UNIT_CONFIG_${META_PROJECT_NAME}_LDFLAGS_OTHER}" "${CPP_UNIT_CONFIG_${META_PROJECT_NAME}_LIBRARIES}"
CACHE FILEPATH "cppunit lib" FORCE)
set(CPP_UNIT_INCLUDE_DIR
${CPP_UNIT_CONFIG_${META_PROJECT_NAME}_INCLUDE_DIRS}
CACHE FILEPATH "cppunit include dir" FORCE)
link_directories(${CPP_UNIT_CONFIG_${META_PROJECT_NAME}_LIBRARY_DIRS})
else ()
# fall back to find_library
find_library(DETECTED_CPP_UNIT_LIB cppunit)
set(CPP_UNIT_LIB
"${DETECTED_CPP_UNIT_LIB}"
CACHE FILEPATH "cppunit lib" FORCE)
endif ()
endif ()
if (NOT CPP_UNIT_LIB)
message(WARNING "Unable to add test target because cppunit could not be located.")
set(META_HAVE_TESTS NO)
set(TEST_CONFIG_DONE YES)
return()
endif ()
list(APPEND TEST_LIBRARIES "${CPP_UNIT_LIB}")
if (NOT CPP_UNIT_CONFIG_${META_PROJECT_NAME}_FOUND)
message(
WARNING
"Cppunit not detected via pkg-config so the version couldn't be checked. Required version for ${META_PROJECT_NAME} is ${META_REQUIRED_CPP_UNIT_VERSION}."
)
endif ()
if (CPP_UNIT_INCLUDE_DIR)
list(APPEND TEST_INCLUDE_DIRS "${CPP_UNIT_INCLUDE_DIR}")
endif ()
endif ()
# add default cppunit test application if requested
if (META_ADD_DEFAULT_CPP_UNIT_TEST_APPLICATION)
if (META_NO_CPP_UNIT)
message(
FATAL_ERROR
"Project ${META_PROJECT_NAME} has META_ADD_DEFAULT_CPP_UNIT_TEST_APPLICATION and META_NO_CPP_UNIT enabled at the same time."
)
endif ()
set(DEFAULT_CPP_UNIT_TEST_APPLICATION_SRC "${CMAKE_CURRENT_BINARY_DIR}/cppunit.cpp")
file(WRITE "${DEFAULT_CPP_UNIT_TEST_APPLICATION_SRC}" "#include <c++utilities/tests/cppunit.h>")
list(APPEND TEST_SRC_FILES "${DEFAULT_CPP_UNIT_TEST_APPLICATION_SRC}")
endif ()
# always link test applications against c++utilities
list(APPEND TEST_LIBRARIES ${CPP_UTILITIES_LIB})
# handle testing a library (which is default project type)
if (META_PROJECT_IS_LIBRARY)
# when testing a library, the test application always needs to link against it
list(APPEND TEST_LIBRARIES ${META_TARGET_NAME})
message(STATUS "Linking test target against ${META_TARGET_NAME}")
endif ()
# create a 'testlib' and link tests against it when testing an application an the tests need to call internal functions of
# the application
if (META_PROJECT_IS_APPLICATION AND LINK_TESTS_AGAINST_APP_TARGET)
# create target for the 'testlib'
set(TESTLIB_FILES ${HEADER_FILES} ${SRC_FILES} ${WIDGETS_FILES} ${QML_FILES} ${RES_FILES} ${QM_FILES})
list(REMOVE_ITEM TESTLIB_FILES main.h main.cpp)
add_library(${META_TARGET_NAME}_testlib SHARED ${TESTLIB_FILES})
target_link_libraries(
${META_TARGET_NAME}_testlib
PUBLIC ${META_ADDITIONAL_LINK_FLAGS} "${PUBLIC_LIBRARIES}"
PRIVATE "${PRIVATE_LIBRARIES}")
target_include_directories(
${META_TARGET_NAME}_testlib
PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> $<INSTALL_INTERFACE:${HEADER_INSTALL_DESTINATION}>
${PUBLIC_INCLUDE_DIRS}
PRIVATE "${PRIVATE_INCLUDE_DIRS}")
target_compile_definitions(
${META_TARGET_NAME}_testlib
PUBLIC "${META_PUBLIC_COMPILE_DEFINITIONS}"
PRIVATE "${META_PRIVATE_COMPILE_DEFINITIONS}")
target_compile_options(
${META_TARGET_NAME}_testlib
PUBLIC "${META_PUBLIC_COMPILE_OPTIONS}"
PRIVATE "${META_PRIVATE_COMPILE_OPTIONS}")
set_target_properties(
${META_TARGET_NAME}_testlib
PROPERTIES CXX_STANDARD "${META_CXX_STANDARD}"
C_VISIBILITY_PRESET default
CXX_VISIBILITY_PRESET default
LINK_SEARCH_START_STATIC ${STATIC_LINKAGE}
LINK_SEARCH_END_STATIC ${STATIC_LINKAGE}
AUTOGEN_TARGET_DEPENDS "${AUTOGEN_DEPS}")
if (CPP_UNIT_CONFIG_${META_PROJECT_NAME}_FOUND)
target_include_directories(${META_TARGET_NAME}_testlib
PRIVATE "${CPP_UNIT_CONFIG_${META_PROJECT_NAME}_INCLUDE_DIRS}")
target_compile_options(${META_TARGET_NAME}_testlib PRIVATE "${CPP_UNIT_CONFIG_${META_PROJECT_NAME}_CFLAGS_OTHER}")
endif ()
# link tests against it
list(APPEND TEST_LIBRARIES ${META_TARGET_NAME}_testlib)
# ensure all symbols are visible (man gcc: "Despite the nomenclature, default always means public")
set_target_properties(${META_TARGET_NAME}_testlib PROPERTIES CXX_VISIBILITY_PRESET default)
endif ()
# configure test target
unset(TEST_TARGET_OPTIONS)
unset(RUN_TESTS_APPLICATION_ARGS)
if (META_PROJECT_TYPE STREQUAL "application")
set(RUN_TESTS_APPLICATION_ARGS -a "$<TARGET_FILE:${META_TARGET_NAME}>")
endif ()
set(RUN_TESTS_ARGS -p "${CMAKE_CURRENT_SOURCE_DIR}/testfiles" -w "${CMAKE_CURRENT_BINARY_DIR}/testworkingdir"
${RUN_TESTS_APPLICATION_ARGS})
if (META_TEST_TARGET_IS_MANUAL)
list(APPEND TEST_TARGET_OPTIONS MANUAL)
endif ()
configure_test_target(
TARGET_NAME
"${META_TARGET_NAME}"
TEST_NAME
"tests"
HEADER_FILES
"${TEST_HEADER_FILES}"
SRC_FILES
"${TEST_SRC_FILES}"
LIBRARIES
"${TEST_LIBRARIES}"
FULL_TEST_NAME_OUT_VAR
META_MAIN_TEST_NAME
RUN_ARGS
"${RUN_TESTS_ARGS}"
${TEST_TARGET_OPTIONS})
# enable source code based coverage analysis using clang
if (CLANG_SOURCE_BASED_COVERAGE_AVAILABLE)
# define path of raw profile data
set(LLVM_PROFILE_RAW_FILE "${CMAKE_CURRENT_BINARY_DIR}/${META_TARGET_NAME}_tests.profraw")
# define path of list with additional raw profile data from fork processes spawned during tests
set(LLVM_PROFILE_RAW_LIST_FILE "${CMAKE_CURRENT_BINARY_DIR}/${META_TARGET_NAME}_tests.profraw.list")
# define path of merged profile data generated from raw profiling data
set(LLVM_PROFILE_DATA_FILE "${CMAKE_CURRENT_BINARY_DIR}/${META_TARGET_NAME}_tests.profdata")
# define paths of output files
set(COVERAGE_REPORT_FILE "${CMAKE_CURRENT_BINARY_DIR}/${META_TARGET_NAME}_tests_coverage.txt")
set(COVERAGE_PER_FILE_REPORT_FILE "${CMAKE_CURRENT_BINARY_DIR}/${META_TARGET_NAME}_tests_coverage_per_file.txt")
set(COVERAGE_OVERALL_REPORT_FILE "${CMAKE_CURRENT_BINARY_DIR}/${META_TARGET_NAME}_tests_coverage_overall.txt")
set(COVERAGE_HTML_REPORT_FILE "${CMAKE_CURRENT_BINARY_DIR}/${META_TARGET_NAME}_tests_coverage.html")
set(COVERAGE_REPORT_FILES "${COVERAGE_REPORT_FILE}")
# specify where to store raw clang profiling data via environment variable
if (NOT META_TEST_TARGET_IS_MANUAL)
set_tests_properties(
${META_TARGET_NAME}_run_tests
PROPERTIES ENVIRONMENT
"LLVM_PROFILE_FILE=${LLVM_PROFILE_RAW_FILE};LLVM_PROFILE_LIST_FILE=${LLVM_PROFILE_RAW_LIST_FILE}")
endif ()
# add command to execute tests generating raw profiling data
add_custom_command(
OUTPUT "${LLVM_PROFILE_RAW_FILE}" "${LLVM_PROFILE_RAW_LIST_FILE}"
COMMAND
"${CMAKE_COMMAND}" -E env "LLVM_PROFILE_FILE=${LLVM_PROFILE_RAW_FILE}"
"LLVM_PROFILE_LIST_FILE=${LLVM_PROFILE_RAW_LIST_FILE}" $<TARGET_FILE:${META_TARGET_NAME}_tests> -p
"${CMAKE_CURRENT_SOURCE_DIR}/testfiles" -w "${CMAKE_CURRENT_BINARY_DIR}/testworkingdir"
${RUN_TESTS_APPLICATION_ARGS}
COMMENT "Executing ${META_TARGET_NAME}_tests to generate raw profiling data for source-based coverage report"
DEPENDS "${META_TARGET_NAME}_tests")
# add commands for processing raw profiling data
find_program(LLVM_PROFDATA_BIN llvm-profdata)
find_program(LLVM_COV_BIN llvm-cov)
if (LLVM_PROFDATA_BIN AND LLVM_COV_BIN)
# merge profiling data
add_custom_command(
OUTPUT "${LLVM_PROFILE_DATA_FILE}"
COMMAND cat "${LLVM_PROFILE_RAW_LIST_FILE}" | xargs "${LLVM_PROFDATA_BIN}" merge -o "${LLVM_PROFILE_DATA_FILE}"
-sparse "${LLVM_PROFILE_RAW_FILE}"
COMMENT "Generating profiling data for source-based coverage report"
DEPENDS "${LLVM_PROFILE_RAW_FILE}" "${LLVM_PROFILE_RAW_LIST_FILE}")
# determine llvm-cov version
execute_process(COMMAND "${LLVM_COV_BIN}" -version OUTPUT_VARIABLE LLVM_COV_VERSION)
string(REGEX MATCH "LLVM version ([0-9](.[0-9])*)" LLVM_COV_VERSION "${LLVM_COV_VERSION}")
if (CMAKE_MATCH_1)
set(LLVM_COV_VERSION "${CMAKE_MATCH_1}")
else ()
message(
FATAL_ERROR
"Unable to determine version of llvm-cov. Output of ${LLVM_COV_BIN} -version:\n${LLVM_COV_VERSION}")
endif ()
# determine the target file for llvm-cov
if (NOT META_HEADER_ONLY_LIB)
set(LLVM_COV_TARGET_FILE $<TARGET_FILE:${META_TARGET_NAME}> $<TARGET_FILE:${META_TARGET_NAME}_tests>)
else ()
set(LLVM_COV_TARGET_FILE $<TARGET_FILE:${META_TARGET_NAME}_tests>)
endif ()
# generate coverage report with statistics per function
unset(LLVM_COV_ADDITIONAL_OPTIONS)
if (LLVM_COV_VERSION GREATER_EQUAL 5.0.0)
# LLVM 5 introduced -show-functions; this is required to get the same behavior as previously (statistics on
# function-level)
list(APPEND LLVM_COV_ADDITIONAL_OPTIONS -show-functions)
endif ()
add_custom_command(
OUTPUT "${COVERAGE_REPORT_FILE}"
COMMAND
"${LLVM_COV_BIN}" report -format=text -stats -instr-profile "${LLVM_PROFILE_DATA_FILE}"
${LLVM_COV_ADDITIONAL_OPTIONS} ${LLVM_COV_TARGET_FILE} ${HEADER_FILES} ${SRC_FILES} ${WIDGETS_HEADER_FILES}
${WIDGETS_SOURCE_FILES} ${QML_HEADER_FILES} ${QML_SOURCE_FILES} > "${COVERAGE_REPORT_FILE}"
COMMENT "Generating coverage report (statistics per function)"
DEPENDS "${LLVM_PROFILE_DATA_FILE}"
WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}")
# generate coverage report with statistics per file (only possible with LLVM 5 if source files are specified)
if (LLVM_COV_VERSION GREATER_EQUAL 5.0.0)
add_custom_command(
OUTPUT "${COVERAGE_PER_FILE_REPORT_FILE}"
COMMAND
"${LLVM_COV_BIN}" report -format=text -stats -instr-profile "${LLVM_PROFILE_DATA_FILE}"
${LLVM_COV_TARGET_FILE} ${HEADER_FILES} ${SRC_FILES} ${WIDGETS_HEADER_FILES} ${WIDGETS_SOURCE_FILES}
${QML_HEADER_FILES} ${QML_SOURCE_FILES} > "${COVERAGE_PER_FILE_REPORT_FILE}"
COMMENT "Generating coverage report (statistics per file)"
DEPENDS "${LLVM_PROFILE_DATA_FILE}"
WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}")
list(APPEND COVERAGE_REPORT_FILES "${COVERAGE_PER_FILE_REPORT_FILE}")
endif ()
# add target for the coverage reports
add_custom_target("${META_TARGET_NAME}_tests_coverage_summary" DEPENDS ${COVERAGE_REPORT_FILES})
# NOTE: Those commands have been added before the release of LLVM 5 where coverage reports with statistics per file
# could not be generated.
# generate coverage overall report (total region/line coverage)
set(OVERALL_COVERAGE_AKW_SCRIPT "${CMAKE_CURRENT_SOURCE_DIR}/tests/calculateoverallcoverage.awk")
if (CPP_UTILITIES_SOURCE_DIR AND NOT EXISTS "${OVERALL_COVERAGE_AKW_SCRIPT}")
set(OVERALL_COVERAGE_AKW_SCRIPT "${CPP_UTILITIES_SOURCE_DIR}/tests/calculateoverallcoverage.awk")
endif ()
if (NOT EXISTS "${OVERALL_COVERAGE_AKW_SCRIPT}")
set(OVERALL_COVERAGE_AKW_SCRIPT "${CPP_UTILITIES_DATA_DIRS}/tests/calculateoverallcoverage.awk")
endif ()
add_custom_command(
OUTPUT "${COVERAGE_OVERALL_REPORT_FILE}"
COMMAND awk -f "${OVERALL_COVERAGE_AKW_SCRIPT}" "${COVERAGE_REPORT_FILE}" > "${COVERAGE_OVERALL_REPORT_FILE}"
COMMENT "Generating coverage report (overall figures)"
DEPENDS "${OVERALL_COVERAGE_AKW_SCRIPT}" "${COVERAGE_REPORT_FILE}")
add_custom_target("${META_TARGET_NAME}_tests_coverage_overall_summary" DEPENDS "${COVERAGE_OVERALL_REPORT_FILE}")
# generate HTML document showing covered/uncovered code
add_custom_command(
OUTPUT "${COVERAGE_HTML_REPORT_FILE}"
COMMAND
"${LLVM_COV_BIN}" show -project-title="${META_APP_NAME}" -format=html -instr-profile
"${LLVM_PROFILE_DATA_FILE}" ${LLVM_COV_TARGET_FILE} ${HEADER_FILES} ${SRC_FILES} ${WIDGETS_FILES}
${QML_FILES} > "${COVERAGE_HTML_REPORT_FILE}"
COMMENT "Generating HTML document showing covered/uncovered code"
DEPENDS "${LLVM_PROFILE_DATA_FILE}"
WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}")
add_custom_target("${META_TARGET_NAME}_tests_coverage_html" DEPENDS "${COVERAGE_HTML_REPORT_FILE}")
# create target for all coverage docs
add_custom_target(
"${META_TARGET_NAME}_tests_coverage"
DEPENDS ${COVERAGE_REPORT_FILES}
DEPENDS "${COVERAGE_OVERALL_REPORT_FILE}"
DEPENDS "${COVERAGE_HTML_REPORT_FILE}")
else ()
message(
FATAL_ERROR "Unable to generate target for coverage report because llvm-profdata and llvm-cov are not available."
)
endif ()
endif ()
# enable coverage analysis with GCC and gcov
if (GCC_COVERAGE_AVAILABLE)
set(GCONV_DATA_DIR "${CMAKE_CURRENT_BINARY_DIR}/gcov-data")
set(GCONV_HTML_REPORT_DIR "${CMAKE_CURRENT_BINARY_DIR}/gcov-html-report")
set(GCONV_HTML_REPORT_INDEX "${GCONV_HTML_REPORT_DIR}/index.html")
set(GCONV_INFO_FILE "${CMAKE_CURRENT_BINARY_DIR}/${META_TARGET_NAME}.info")
get_filename_component(CURRENT_SUB_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}" NAME)
set(GCOV_DATA_FILES)
foreach (FILE ${ALL_FILES})
if (FILE MATCHES ".*\\.(h|hpp|c|cpp)")
list(APPEND GCOV_DATA_FILES "CMakeFiles/${CURRENT_SUB_DIRECTORY}.dir/${FILE}.gcda")
endif ()
endforeach ()
# add command to execute tests generating raw profiling data
add_custom_command(
OUTPUT ${GCOV_DATA_FILES}
COMMAND "${CMAKE_COMMAND}" -E env $<TARGET_FILE:${META_TARGET_NAME}_tests> -p "${CMAKE_CURRENT_SOURCE_DIR}/testfiles"
-w "${CMAKE_CURRENT_BINARY_DIR}/testworkingdir" ${RUN_TESTS_APPLICATION_ARGS}
COMMENT "Executing ${META_TARGET_NAME}_tests to generate gcov profiling data for coverage report"
DEPENDS "${META_TARGET_NAME}_tests")
# add commands for processing raw profiling data
find_program(GCOV_BIN gcov)
find_program(GENINFO_BIN geninfo)
find_program(GENHTML_BIN genhtml)
if (GCOV_BIN
AND GENINFO_BIN
AND GENHTML_BIN)
# generate coverage info
add_custom_command(
OUTPUT "${GCONV_INFO_FILE}"
COMMAND
"${GENINFO_BIN}" --base-directory "${CMAKE_CURRENT_SOURCE_DIR}" --output-filename "${GCONV_INFO_FILE}"
--gcov-tool "${GCOV_BIN}" --test-name "${META_TARGET_NAME}_tests" --no-external "${CMAKE_CURRENT_BINARY_DIR}"
COMMENT "Generating coverage info"
DEPENDS ${GCOV_DATA_FILES})
add_custom_target("${META_TARGET_NAME}_tests_coverage_info" DEPENDS "${GCONV_INFO_FILE}")
# generate HTML document showing covered/uncovered code
add_custom_command(
OUTPUT "${GCONV_HTML_REPORT_INDEX}"
COMMAND "${GENHTML_BIN}" "${GCONV_INFO_FILE}" -o "${GCONV_HTML_REPORT_DIR}"
COMMENT "Generating HTML document showing covered/uncovered code"
DEPENDS "${GCONV_INFO_FILE}")
add_custom_target("${META_TARGET_NAME}_tests_coverage_html" DEPENDS "${GCONV_HTML_REPORT_INDEX}")
# create target for all coverage docs
add_custom_target(
"${META_TARGET_NAME}_tests_coverage"
DEPENDS "${GCONV_INFO_FILE}"
DEPENDS "${GCONV_HTML_REPORT_INDEX}")
else ()
message(
FATAL_ERROR
"Unable to generate target for coverage report because gcov, geninfo and/or genhtml are not available.")
endif ()
endif ()
if (TARGET "${META_TARGET_NAME}_tests_coverage")
# add targets to global coverage target
if (NOT TARGET coverage)
add_custom_target(coverage)
endif ()
add_dependencies(coverage "${META_TARGET_NAME}_tests_coverage")
endif ()
set(META_HAVE_TESTS YES)
set(TEST_CONFIG_DONE YES)