164 lines
6.3 KiB
CMake
164 lines
6.3 KiB
CMake
#
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# Boost Software License - Version 1.0 - August 17th, 2003
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#
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# Permission is hereby granted, free of charge, to any person or organization
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# obtaining a copy of the software and accompanying documentation covered by
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# this license (the "Software") to use, reproduce, display, distribute,
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# execute, and transmit the Software, and to prepare derivative works of the
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# Software, and to permit third-parties to whom the Software is furnished to
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# do so, all subject to the following:
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#
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# The copyright notices in the Software and this entire statement, including
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# the above license grant, this restriction and the following disclaimer,
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# must be included in all copies of the Software, in whole or in part, and
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# all derivative works of the Software, unless such copies or derivative
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# works are solely in the form of machine-executable object code generated by
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# a source language processor.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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# SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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# FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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# DEALINGS IN THE SOFTWARE.
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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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# USAGE:
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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. Set compiler flags to turn off optimization and enable coverage:
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# SET(CMAKE_CXX_FLAGS "-g -O0 -fprofile-arcs -ftest-coverage")
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# SET(CMAKE_C_FLAGS "-g -O0 -fprofile-arcs -ftest-coverage")
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#
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# 3. Use the function SETUP_TARGET_FOR_COVERAGE to create a custom make target
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# which runs your test executable and produces a lcov code coverage report:
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# Example:
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# SETUP_TARGET_FOR_COVERAGE(
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# my_coverage_target # Name for custom target.
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# test_driver # Name of the test driver executable that runs the tests.
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# # NOTE! This should always have a ZERO as exit code
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# # otherwise the coverage generation will not complete.
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# coverage # Name of output directory.
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# )
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#
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# 4. 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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#
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# Check prereqs
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FIND_PROGRAM( GCOV_PATH gcov )
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FIND_PROGRAM( LCOV_PATH lcov )
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FIND_PROGRAM( GENHTML_PATH genhtml )
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FIND_PROGRAM( GCOVR_PATH gcovr PATHS ${CMAKE_SOURCE_DIR}/tests)
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IF(NOT GCOV_PATH)
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MESSAGE(FATAL_ERROR "gcov not found! Aborting...")
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ENDIF() # NOT GCOV_PATH
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IF(NOT (CMAKE_COMPILER_IS_GNUCXX OR CMAKE_COMPILER_IS_GNUCC))
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# Clang version 3.0.0 and greater now supports gcov as well.
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MESSAGE(WARNING "Compiler is not GNU gcc! Clang Version 3.0.0 and greater supports gcov as well, but older versions don't.")
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IF(NOT ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" OR "${CMAKE_C_COMPILER_ID}" STREQUAL "Clang"))
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MESSAGE(FATAL_ERROR "Compiler is not GNU gcc or Clang! Aborting...")
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ENDIF()
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ENDIF() # NOT CMAKE_COMPILER_IS_GNUCXX
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IF ( NOT CMAKE_BUILD_TYPE STREQUAL "Debug" )
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MESSAGE( WARNING "Code coverage results with an optimized (non-Debug) build may be misleading" )
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ENDIF() # NOT CMAKE_BUILD_TYPE STREQUAL "Debug"
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# Param _targetname The name of new the custom make target
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# Param _outputname lcov output is generated as _outputname.info
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# HTML report is generated in _outputname/index.html
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# Param _testrunner The name of the target which runs the tests.
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# MUST return ZERO always, even on errors.
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# If not, no coverage report will be created!
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# Optional fourth parameter is passed as arguments to _testrunner
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# Pass them in list form, e.g.: "-j;2" for -j 2
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FUNCTION(SETUP_TARGET_FOR_COVERAGE _targetname _outputname _testrunner)
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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(${_targetname}
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# Cleanup lcov
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${LCOV_PATH} --directory . --zerocounters
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# Run tests
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COMMAND ${_testrunner} ${ARGV3}
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# Capturing lcov counters and generating report
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COMMAND ${LCOV_PATH} --directory . --capture --output-file ${_outputname}.info --rc lcov_branch_coverage=1
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COMMAND ${LCOV_PATH} --remove ${_outputname}.info 'tests/*' '/usr/*' --output-file ${_outputname}.info.cleaned --rc lcov_branch_coverage=1
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COMMAND ${GENHTML_PATH} --branch-coverage -o ${_outputname} ${_outputname}.info.cleaned
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COMMAND ${CMAKE_COMMAND} -E remove ${_outputname}.info ${_outputname}.info.cleaned
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
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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 info where to find the report
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ADD_CUSTOM_COMMAND(TARGET ${_targetname} POST_BUILD
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COMMAND ;
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COMMENT "Open ./${_outputname}/index.html in your browser to view the coverage report."
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)
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ENDFUNCTION() # SETUP_TARGET_FOR_COVERAGE
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# Param _targetname The name of new the custom make target
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# Param _testrunner The name of the target which runs the tests
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# Param _outputname cobertura output is generated as _outputname.xml
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# Optional fourth parameter is passed as arguments to _testrunner
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# Pass them in list form, e.g.: "-j;2" for -j 2
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FUNCTION(SETUP_TARGET_FOR_COVERAGE_COBERTURA _targetname _testrunner _outputname)
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IF(NOT PYTHON_EXECUTABLE)
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MESSAGE(FATAL_ERROR "Python not found! Aborting...")
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ENDIF() # NOT 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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ADD_CUSTOM_TARGET(${_targetname}
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# Run tests
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${_testrunner} ${ARGV3}
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# Running gcovr
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COMMAND ${GCOVR_PATH} -x -r ${CMAKE_SOURCE_DIR} -e '${CMAKE_SOURCE_DIR}/tests/' -o ${_outputname}.xml
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
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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 ${_targetname} POST_BUILD
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COMMAND ;
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COMMENT "Cobertura code coverage report saved in ${_outputname}.xml."
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)
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ENDFUNCTION() # SETUP_TARGET_FOR_COVERAGE_COBERTURA
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