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18b22834c1
Generation of unit test coverage reports used to be quite complicated and required a lot of different settings, including a custom CMake build type. This patch updates the coverage CMake module to only require -DWITH_COVERAGE=ON to be set on a normal Debug build in order to create a coverage target. This patch also moves away from lcov in favor of gcovr, since lcov appears to be broken in GCC 8. However, the routines for generating lcov reports still exist, so provided lcov receives updates and there is sufficient reason to switch back, it is easy to do so.
303 lines
12 KiB
CMake
303 lines
12 KiB
CMake
# Copyright (c) 2012 - 2017, Lars Bilke
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without modification,
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# are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# 3. Neither the name of the copyright holder nor the names of its contributors
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# may be used to endorse or promote products derived from this software without
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# specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# CHANGES:
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#
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# 2012-01-31, Lars Bilke
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# - Enable Code Coverage
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#
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# 2013-09-17, Joakim Söderberg
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# - Added support for Clang.
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# - Some additional usage instructions.
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#
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# 2016-02-03, Lars Bilke
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# - Refactored functions to use named parameters
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#
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# 2017-06-02, Lars Bilke
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# - Merged with modified version from github.com/ufz/ogs
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#
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#
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# USAGE:
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#
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# 1. Copy this file into your cmake modules path.
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#
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# 2. Add the following line to your CMakeLists.txt:
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# include(CodeCoverage)
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#
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# 3. Append necessary compiler flags:
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# APPEND_COVERAGE_COMPILER_FLAGS()
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#
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# 4. If you need to exclude additional directories from the report, specify them
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# using the COVERAGE_LCOV_EXCLUDES variable before calling SETUP_TARGET_FOR_COVERAGE_LCOV.
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# Example:
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# set(COVERAGE_LCOV_EXCLUDES 'dir1/*' 'dir2/*')
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#
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# 5. Use the functions described below to create a custom make target which
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# runs your test executable and produces a code coverage report.
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#
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# 6. Build a Debug build:
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# cmake -DCMAKE_BUILD_TYPE=Debug ..
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# make
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# make my_coverage_target
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#
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include(CMakeParseArguments)
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# Check prereqs
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find_program( GCOV_PATH gcov )
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find_program( LCOV_PATH NAMES lcov lcov.bat lcov.exe lcov.perl)
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find_program( GENHTML_PATH NAMES genhtml genhtml.perl genhtml.bat )
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find_program( GCOVR_PATH gcovr PATHS ${CMAKE_SOURCE_DIR}/scripts/test)
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find_program( SIMPLE_PYTHON_EXECUTABLE python )
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if(NOT GCOV_PATH)
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message(FATAL_ERROR "gcov not found! Aborting...")
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endif() # NOT GCOV_PATH
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if("${CMAKE_CXX_COMPILER_ID}" MATCHES "(Apple)?[Cc]lang")
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if("${CMAKE_CXX_COMPILER_VERSION}" VERSION_LESS 3)
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message(FATAL_ERROR "Clang version must be 3.0.0 or greater! Aborting...")
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endif()
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elseif(NOT CMAKE_COMPILER_IS_GNUCXX)
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message(FATAL_ERROR "Compiler is not GNU gcc! Aborting...")
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endif()
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set(COVERAGE_COMPILER_FLAGS "-g -O0 --coverage -fprofile-arcs -ftest-coverage"
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CACHE INTERNAL "")
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set(CMAKE_CXX_FLAGS_COVERAGE
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${COVERAGE_COMPILER_FLAGS}
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CACHE STRING "Flags used by the C++ compiler during coverage builds."
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FORCE )
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set(CMAKE_C_FLAGS_COVERAGE
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${COVERAGE_COMPILER_FLAGS}
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CACHE STRING "Flags used by the C compiler during coverage builds."
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FORCE )
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set(CMAKE_EXE_LINKER_FLAGS_COVERAGE
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""
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CACHE STRING "Flags used for linking binaries during coverage builds."
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FORCE )
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set(CMAKE_SHARED_LINKER_FLAGS_COVERAGE
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""
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CACHE STRING "Flags used by the shared libraries linker during coverage builds."
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FORCE )
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mark_as_advanced(
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CMAKE_CXX_FLAGS_COVERAGE
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CMAKE_C_FLAGS_COVERAGE
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CMAKE_EXE_LINKER_FLAGS_COVERAGE
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CMAKE_SHARED_LINKER_FLAGS_COVERAGE )
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if(NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
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message(WARNING "Code coverage results with an optimised (non-Debug) build may be misleading")
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endif() # NOT CMAKE_BUILD_TYPE STREQUAL "Debug"
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if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
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link_libraries(gcov)
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else()
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} --coverage")
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endif()
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# Defines a target for running and collection code coverage information
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# Builds dependencies, runs the given executable and outputs reports.
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# NOTE! The executable should always have a ZERO as exit code otherwise
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# the coverage generation will not complete.
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#
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# SETUP_TARGET_FOR_COVERAGE_LCOV(
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# NAME testrunner_coverage # New target name
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# EXECUTABLE testrunner -j ${PROCESSOR_COUNT} # Executable in PROJECT_BINARY_DIR
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# DEPENDENCIES testrunner # Dependencies to build first
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# )
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function(SETUP_TARGET_FOR_COVERAGE_LCOV)
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set(options NONE)
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set(oneValueArgs NAME)
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set(multiValueArgs EXECUTABLE EXECUTABLE_ARGS DEPENDENCIES)
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cmake_parse_arguments(Coverage "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
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if(NOT LCOV_PATH)
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message(FATAL_ERROR "lcov not found! Aborting...")
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endif() # NOT LCOV_PATH
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if(NOT GENHTML_PATH)
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message(FATAL_ERROR "genhtml not found! Aborting...")
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endif() # NOT GENHTML_PATH
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# Setup target
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add_custom_target(${Coverage_NAME}
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# Cleanup lcov
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COMMAND ${LCOV_PATH} --gcov-tool ${GCOV_PATH} -directory . --zerocounters
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# Create baseline to make sure untouched files show up in the report
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COMMAND ${LCOV_PATH} --gcov-tool ${GCOV_PATH} -c -i -d . -o ${Coverage_NAME}.base
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# Run tests
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COMMAND ${Coverage_EXECUTABLE}
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# Capturing lcov counters and generating report
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COMMAND ${LCOV_PATH} --gcov-tool ${GCOV_PATH} --directory . --capture --output-file ${Coverage_NAME}.info
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# add baseline counters
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COMMAND ${LCOV_PATH} --gcov-tool ${GCOV_PATH} -a ${Coverage_NAME}.base -a ${Coverage_NAME}.info --output-file ${Coverage_NAME}.total
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COMMAND ${LCOV_PATH} --gcov-tool ${GCOV_PATH} --remove ${Coverage_NAME}.total ${COVERAGE_LCOV_EXCLUDES} --output-file ${PROJECT_BINARY_DIR}/${Coverage_NAME}.info.cleaned
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COMMAND ${GENHTML_PATH} -o ${Coverage_NAME} ${PROJECT_BINARY_DIR}/${Coverage_NAME}.info.cleaned
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COMMAND ${CMAKE_COMMAND} -E remove ${Coverage_NAME}.base ${Coverage_NAME}.total ${PROJECT_BINARY_DIR}/${Coverage_NAME}.info.cleaned
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WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
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DEPENDS ${Coverage_DEPENDENCIES}
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COMMENT "Resetting code coverage counters to zero.\nProcessing code coverage counters and generating report."
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)
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# Show where to find the lcov info report
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add_custom_command(TARGET ${Coverage_NAME} POST_BUILD
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COMMAND ;
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COMMENT "Lcov code coverage info report saved in ${Coverage_NAME}.info."
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)
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# Show info where to find the report
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add_custom_command(TARGET ${Coverage_NAME} POST_BUILD
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COMMAND ;
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COMMENT "Open ./${Coverage_NAME}/index.html in your browser to view the coverage report."
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)
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endfunction() # SETUP_TARGET_FOR_COVERAGE_LCOV
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# Defines a target for running and collection code coverage information
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# Builds dependencies, runs the given executable and outputs reports.
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# NOTE! The executable should always have a ZERO as exit code otherwise
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# the coverage generation will not complete.
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#
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# SETUP_TARGET_FOR_COVERAGE_GCOVR_XML(
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# NAME ctest_coverage # New target name
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# EXECUTABLE ctest -j ${PROCESSOR_COUNT} # Executable in PROJECT_BINARY_DIR
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# DEPENDENCIES executable_target # Dependencies to build first
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# )
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function(SETUP_TARGET_FOR_COVERAGE_GCOVR_XML)
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set(options NONE)
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set(oneValueArgs NAME)
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set(multiValueArgs EXECUTABLE EXECUTABLE_ARGS DEPENDENCIES)
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cmake_parse_arguments(Coverage "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
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if(NOT SIMPLE_PYTHON_EXECUTABLE)
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message(FATAL_ERROR "python not found! Aborting...")
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endif() # NOT SIMPLE_PYTHON_EXECUTABLE
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if(NOT GCOVR_PATH)
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message(FATAL_ERROR "gcovr not found! Aborting...")
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endif() # NOT GCOVR_PATH
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# Combine excludes to several -e arguments
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set(GCOVR_EXCLUDES "")
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foreach(EXCLUDE ${COVERAGE_GCOVR_EXCLUDES})
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list(APPEND GCOVR_EXCLUDES "-e")
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list(APPEND GCOVR_EXCLUDES "${EXCLUDE}")
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endforeach()
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add_custom_target(${Coverage_NAME}
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# Run tests
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${Coverage_EXECUTABLE}
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# Running gcovr
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COMMAND ${GCOVR_PATH} --xml
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-r ${PROJECT_SOURCE_DIR} ${GCOVR_EXCLUDES}
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--object-directory=${PROJECT_BINARY_DIR}
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-o ${Coverage_NAME}.xml
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WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
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DEPENDS ${Coverage_DEPENDENCIES}
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COMMENT "Running gcovr to produce Cobertura code coverage report."
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)
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# Show info where to find the report
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add_custom_command(TARGET ${Coverage_NAME} POST_BUILD
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COMMAND ;
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COMMENT "Cobertura code coverage report saved in ${Coverage_NAME}.xml."
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)
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endfunction() # SETUP_TARGET_FOR_COVERAGE_GCOVR_XML
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# Defines a target for running and collection code coverage information
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# Builds dependencies, runs the given executable and outputs reports.
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# NOTE! The executable should always have a ZERO as exit code otherwise
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# the coverage generation will not complete.
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#
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# SETUP_TARGET_FOR_COVERAGE_GCOVR_HTML(
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# NAME ctest_coverage # New target name
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# EXECUTABLE ctest -j ${PROCESSOR_COUNT} # Executable in PROJECT_BINARY_DIR
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# DEPENDENCIES executable_target # Dependencies to build first
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# )
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function(SETUP_TARGET_FOR_COVERAGE_GCOVR_HTML)
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set(options NONE)
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set(oneValueArgs NAME)
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set(multiValueArgs EXECUTABLE EXECUTABLE_ARGS DEPENDENCIES)
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cmake_parse_arguments(Coverage "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
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if(NOT SIMPLE_PYTHON_EXECUTABLE)
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message(FATAL_ERROR "python not found! Aborting...")
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endif() # NOT SIMPLE_PYTHON_EXECUTABLE
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if(NOT GCOVR_PATH)
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message(FATAL_ERROR "gcovr not found! Aborting...")
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endif() # NOT GCOVR_PATH
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# Combine excludes to several -e arguments
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set(GCOVR_EXCLUDES "")
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foreach(EXCLUDE ${COVERAGE_GCOVR_EXCLUDES})
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list(APPEND GCOVR_EXCLUDES "-e")
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list(APPEND GCOVR_EXCLUDES "${EXCLUDE}")
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endforeach()
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add_custom_target(${Coverage_NAME}
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# Run tests
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${Coverage_EXECUTABLE}
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# Create folder
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COMMAND ${CMAKE_COMMAND} -E make_directory ${PROJECT_BINARY_DIR}/${Coverage_NAME}
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# Running gcovr
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COMMAND ${GCOVR_PATH} --html --html-details
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-r ${PROJECT_SOURCE_DIR} ${GCOVR_EXCLUDES}
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--object-directory=${PROJECT_BINARY_DIR}
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-o ${Coverage_NAME}/index.html
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WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
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DEPENDS ${Coverage_DEPENDENCIES}
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COMMENT "Running gcovr to produce HTML code coverage report."
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)
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# Show info where to find the report
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add_custom_command(TARGET ${Coverage_NAME} POST_BUILD
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COMMAND ;
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COMMENT "Open ./${Coverage_NAME}/index.html in your browser to view the coverage report."
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)
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endfunction() # SETUP_TARGET_FOR_COVERAGE_GCOVR_HTML
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function(APPEND_COVERAGE_COMPILER_FLAGS)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${COVERAGE_COMPILER_FLAGS}" PARENT_SCOPE)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${COVERAGE_COMPILER_FLAGS}" PARENT_SCOPE)
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message(STATUS "Appending code coverage compiler flags: ${COVERAGE_COMPILER_FLAGS}")
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endfunction() # APPEND_COVERAGE_COMPILER_FLAGS |