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Build option ENABLE_COVERAGE must be set. There's also a secondary option GENERATE_COVERAGE_DOCS which requires lcov and will generate html docs of unit test coverage. To generate coverage, first enable the cmake options, then build QGIS. From the build directory, run "make qgis_coverage". You can also add command line arguments to "make qgis_coverage" which are forwarded on to ctest. This allows for skipping failing tests which prevent generation of coverage docs. This is done by adding the command line argument CMD_ARGS= to the "make qgis_coverage" command. Eg, make qgis_coverage CMD_ARGS="-E \"PalLabeling|LocalServer|AppStartup\" will skip tests which match the listed expressions.
174 lines
6.1 KiB
CMake
174 lines
6.1 KiB
CMake
#
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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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# 0. (Mac only) If you use Xcode 5.1 make sure to patch geninfo as described here:
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# http://stackoverflow.com/a/22404544/80480
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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. 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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IF(GENERATE_COVERAGE_DOCS)
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FIND_PROGRAM( LCOV_PATH lcov )
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FIND_PROGRAM( GENHTML_PATH genhtml )
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ENDIF()
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FIND_PROGRAM( GCOVR_PATH gcovr PATHS ${CMAKE_SOURCE_DIR}/tests)
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IF(NOT GCOV_PATH)
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MESSAGE(FATAL_ERROR "gcov not found! Aborting...")
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ENDIF() # NOT GCOV_PATH
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IF(NOT CMAKE_COMPILER_IS_GNUCXX)
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# Clang version 3.0.0 and greater now supports gcov as well.
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MESSAGE(WARNING "Compiler is not GNU gcc! Clang Version 3.0.0 and greater supports gcov as well, but older versions don't.")
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IF(NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
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MESSAGE(FATAL_ERROR "Compiler is not GNU gcc! Aborting...")
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ENDIF()
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ENDIF() # NOT CMAKE_COMPILER_IS_GNUCXX
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SET(CMAKE_CXX_FLAGS_COVERAGE
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"-g -O0 --coverage -fprofile-arcs -ftest-coverage"
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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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"-g -O0 --coverage -fprofile-arcs -ftest-coverage"
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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" OR CMAKE_BUILD_TYPE STREQUAL "Coverage"))
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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 _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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# 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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# 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 _testrunner _outputname)
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IF(GENERATE_COVERAGE_DOCS AND 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(GENERATE_COVERAGE_DOCS AND 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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IF(GENERATE_COVERAGE_DOCS)
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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} \${CMD_ARGS}
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# Capturing lcov counters and generating report
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COMMAND ${LCOV_PATH} --rc lcov_branch_coverage=1 --directory . --capture --output-file ${_outputname}.info
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COMMAND ${LCOV_PATH} --rc lcov_branch_coverage=1 --remove ${_outputname}.info 'tests/*' '/usr/*' '*.cxx' '*.sip' 'sip_*' 'ui_*' --output-file ${_outputname}.info.cleaned
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COMMAND ${GENHTML_PATH} --branch-coverage --rc lcov_branch_coverage=1 -o ${_outputname} ${_outputname}.info.cleaned
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COMMAND ${CMAKE_COMMAND} -E remove ${_outputname}.info.cleaned
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COMMENT "Resetting code coverage counters to zero.\nProcessing code coverage counters and generating report."
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
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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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ELSE(GENERATE_COVERAGE_DOCS)
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ADD_CUSTOM_TARGET(${_targetname}
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# Run tests
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COMMAND ${_testrunner} \${CMD_ARGS}
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
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)
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ENDIF()
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ENDFUNCTION() # SETUP_TARGET_FOR_COVERAGE
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# Param _targetname The name of new the custom make target
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# Param _testrunner The name of the target which runs the tests
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# Param _outputname cobertura output is generated as _outputname.xml
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# Optional fourth parameter is passed as arguments to _testrunner
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# Pass them in list form, e.g.: "-j;2" for -j 2
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FUNCTION(SETUP_TARGET_FOR_COVERAGE_COBERTURA _targetname _testrunner _outputname)
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IF(NOT PYTHON_EXECUTABLE)
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MESSAGE(FATAL_ERROR "Python not found! Aborting...")
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ENDIF() # NOT PYTHON_EXECUTABLE
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IF(NOT GCOVR_PATH)
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MESSAGE(FATAL_ERROR "gcovr not found! Aborting...")
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ENDIF() # NOT GCOVR_PATH
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ADD_CUSTOM_TARGET(${_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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