# Copyright (c) 2012 - 2015, Lars Bilke | |
# All rights reserved. | |
# | |
# Redistribution and use in source and binary forms, with or without modification, | |
# are permitted provided that the following conditions are met: | |
# | |
# 1. Redistributions of source code must retain the above copyright notice, this | |
# list of conditions and the following disclaimer. | |
# | |
# 2. Redistributions in binary form must reproduce the above copyright notice, | |
# this list of conditions and the following disclaimer in the documentation | |
# and/or other materials provided with the distribution. | |
# | |
# 3. Neither the name of the copyright holder nor the names of its contributors | |
# may be used to endorse or promote products derived from this software without | |
# specific prior written permission. | |
# | |
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND | |
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR | |
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | |
# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
# | |
# | |
# | |
# 2012-01-31, Lars Bilke | |
# - Enable Code Coverage | |
# | |
# 2013-09-17, Joakim Söderberg | |
# - Added support for Clang. | |
# - Some additional usage instructions. | |
# | |
# USAGE: | |
# 0. (Mac only) If you use Xcode 5.1 make sure to patch geninfo as described here: | |
# http://stackoverflow.com/a/22404544/80480 | |
# | |
# 1. Copy this file into your cmake modules path. | |
# | |
# 2. Add the following line to your CMakeLists.txt: | |
# INCLUDE(CodeCoverage) | |
# | |
# 3. Set compiler flags to turn off optimization and enable coverage: | |
# SET(CMAKE_CXX_FLAGS "-g -O0 -fprofile-arcs -ftest-coverage") | |
# SET(CMAKE_C_FLAGS "-g -O0 -fprofile-arcs -ftest-coverage") | |
# | |
# 3. Use the function SETUP_TARGET_FOR_COVERAGE to create a custom make target | |
# which runs your test executable and produces a lcov code coverage report: | |
# Example: | |
# SETUP_TARGET_FOR_COVERAGE( | |
# my_coverage_target # Name for custom target. | |
# test_driver # Name of the test driver executable that runs the tests. | |
# # NOTE! This should always have a ZERO as exit code | |
# # otherwise the coverage generation will not complete. | |
# coverage # Name of output directory. | |
# ) | |
# | |
# 4. Build a Debug build: | |
# cmake -DCMAKE_BUILD_TYPE=Debug .. | |
# make | |
# make my_coverage_target | |
# | |
# | |
# Check prereqs | |
FIND_PROGRAM( GCOV_PATH gcov ) | |
message("${LCOV_INSTALL_INCLUDE_DIR}") | |
FIND_LIBRARY( LCOV_PATH lcov HINTS ${LCOV_INSTALL_INCLUDE_DIR}) | |
message("${LCOV_PATH}") | |
FIND_PROGRAM( GENHTML_PATH genhtml ) | |
FIND_PROGRAM( GCOVR_PATH gcovr PATHS ${CMAKE_SOURCE_DIR}/tests) | |
IF(NOT GCOV_PATH) | |
MESSAGE(FATAL_ERROR "gcov not found! Aborting...") | |
ENDIF() # NOT GCOV_PATH | |
IF(NOT CMAKE_COMPILER_IS_GNUCXX) | |
# Clang version 3.0.0 and greater now supports gcov as well. | |
MESSAGE(WARNING "Compiler is not GNU gcc! Clang Version 3.0.0 and greater supports gcov as well, but older versions don't.") | |
IF(NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang") | |
MESSAGE(FATAL_ERROR "Compiler is not GNU gcc! Aborting...") | |
ENDIF() | |
ENDIF() # NOT CMAKE_COMPILER_IS_GNUCXX | |
SET(CMAKE_CXX_FLAGS_COVERAGE | |
"-g -O0 --coverage -fprofile-arcs -ftest-coverage" | |
CACHE STRING "Flags used by the C++ compiler during coverage builds." | |
FORCE ) | |
SET(CMAKE_C_FLAGS_COVERAGE | |
"-g -O0 --coverage -fprofile-arcs -ftest-coverage" | |
CACHE STRING "Flags used by the C compiler during coverage builds." | |
FORCE ) | |
SET(CMAKE_EXE_LINKER_FLAGS_COVERAGE | |
"" | |
CACHE STRING "Flags used for linking binaries during coverage builds." | |
FORCE ) | |
SET(CMAKE_SHARED_LINKER_FLAGS_COVERAGE | |
"" | |
CACHE STRING "Flags used by the shared libraries linker during coverage builds." | |
FORCE ) | |
MARK_AS_ADVANCED( | |
CMAKE_CXX_FLAGS_COVERAGE | |
CMAKE_C_FLAGS_COVERAGE | |
CMAKE_EXE_LINKER_FLAGS_COVERAGE | |
CMAKE_SHARED_LINKER_FLAGS_COVERAGE ) | |
IF ( NOT (CMAKE_BUILD_TYPE STREQUAL "Debug" OR CMAKE_BUILD_TYPE STREQUAL "Coverage")) | |
MESSAGE( WARNING "Code coverage results with an optimized (non-Debug) build may be misleading" ) | |
ENDIF() # NOT CMAKE_BUILD_TYPE STREQUAL "Debug" | |
# Param _targetname The name of new the custom make target | |
# Param _testrunner The name of the target which runs the tests. | |
# MUST return ZERO always, even on errors. | |
# If not, no coverage report will be created! | |
# Param _outputname lcov output is generated as _outputname.info | |
# HTML report is generated in _outputname/index.html | |
# Optional fourth parameter is passed as arguments to _testrunner | |
# Pass them in list form, e.g.: "-j;2" for -j 2 | |
FUNCTION(SETUP_TARGET_FOR_COVERAGE _targetname _testrunner _outputname) | |
IF(NOT LCOV_PATH) | |
MESSAGE(FATAL_ERROR "lcov not found! Aborting...") | |
ENDIF() # NOT LCOV_PATH | |
IF(NOT GENHTML_PATH) | |
MESSAGE(FATAL_ERROR "genhtml not found! Aborting...") | |
ENDIF() # NOT GENHTML_PATH | |
SET(coverage_info "${CMAKE_BINARY_DIR}/${_outputname}.info") | |
SET(coverage_cleaned "${coverage_info}.cleaned") | |
SEPARATE_ARGUMENTS(test_command UNIX_COMMAND "${_testrunner}") | |
# Setup target | |
ADD_CUSTOM_TARGET(${_targetname} | |
# Cleanup lcov | |
${LCOV_PATH} --directory . --zerocounters | |
# Run tests | |
COMMAND ${test_command} ${ARGV3} | |
# Capturing lcov counters and generating report | |
COMMAND ${LCOV_PATH} --directory . --capture --output-file ${coverage_info} | |
COMMAND ${LCOV_PATH} --remove ${coverage_info} 'tests/*' '/usr/*' --output-file ${coverage_cleaned} | |
COMMAND ${GENHTML_PATH} -o ${_outputname} ${coverage_cleaned} | |
COMMAND ${CMAKE_COMMAND} -E remove ${coverage_info} ${coverage_cleaned} | |
WORKING_DIRECTORY ${CMAKE_BINARY_DIR} | |
COMMENT "Resetting code coverage counters to zero.\nProcessing code coverage counters and generating report." | |
) | |
# Show info where to find the report | |
ADD_CUSTOM_COMMAND(TARGET ${_targetname} POST_BUILD | |
COMMAND ; | |
COMMENT "Open ./${_outputname}/index.html in your browser to view the coverage report." | |
) | |
ENDFUNCTION() # SETUP_TARGET_FOR_COVERAGE | |
# Param _targetname The name of new the custom make target | |
# Param _testrunner The name of the target which runs the tests | |
# Param _outputname cobertura output is generated as _outputname.xml | |
# Optional fourth parameter is passed as arguments to _testrunner | |
# Pass them in list form, e.g.: "-j;2" for -j 2 | |
FUNCTION(SETUP_TARGET_FOR_COVERAGE_COBERTURA _targetname _testrunner _outputname) | |
IF(NOT PYTHON_EXECUTABLE) | |
MESSAGE(FATAL_ERROR "Python not found! Aborting...") | |
ENDIF() # NOT PYTHON_EXECUTABLE | |
IF(NOT GCOVR_PATH) | |
MESSAGE(FATAL_ERROR "gcovr not found! Aborting...") | |
ENDIF() # NOT GCOVR_PATH | |
ADD_CUSTOM_TARGET(${_targetname} | |
# Run tests | |
${_testrunner} ${ARGV3} | |
# Running gcovr | |
COMMAND ${GCOVR_PATH} -x -r ${CMAKE_SOURCE_DIR} -e '${CMAKE_SOURCE_DIR}/tests/' -o ${_outputname}.xml | |
WORKING_DIRECTORY ${CMAKE_BINARY_DIR} | |
COMMENT "Running gcovr to produce Cobertura code coverage report." | |
) | |
# Show info where to find the report | |
ADD_CUSTOM_COMMAND(TARGET ${_targetname} POST_BUILD | |
COMMAND ; | |
COMMENT "Cobertura code coverage report saved in ${_outputname}.xml." | |
) | |
ENDFUNCTION() # SETUP_TARGET_FOR_COVERAGE_COBERTURA |