使用具有多个目标的 CodeCoverage.cmake 进行代码覆盖率分析
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【中文标题】使用具有多个目标的 CodeCoverage.cmake 进行代码覆盖率分析【英文标题】：Code coverage analysis using CodeCoverage.cmake with multiple targets 【发布时间】：2019-02-14 18:11:52 【问题描述】：我在我的项目中使用Boost Unit Test Framework 实现了单元测试，并组织成几个模块，即：
#define BOOST_TEST_MODULE Connection_test
#ifndef BOOST_TEST_DYN_LINK
#define BOOST_TEST_DYN_LINK
#endif
#ifndef BOOST_TEST_NO_MAIN
#define BOOST_TEST_NO_MAIN
#endif
#include <boost/test/unit_test.hpp>
#include <boost/test/output_test_stream.hpp>
#define BOOST_TEST_MODULE Connection_test
BOOST_AUTO_TEST_SUITE(Connection_test)
BOOST_AUTO_TEST_CASE(Connection_construction__test)
***
BOOST_AUTO_TEST_SUITE_END()
我将每个模块编译为单个可执行文件。
我想使用CodeCoverage.cmake 模块来运行代码覆盖率分析，但我遇到了问题。我应该通过SETUP_TARGET_FOR_COVERAGE_LCOV 指定一个测试可执行文件，但我没有一个。
有没有办法使用CodeCoverage.cmake 一次设置多个测试可执行文件？
编辑
我已将 add_test() 的测试添加到我的根 CMakeLists.txt 中，并像这样修改了我的覆盖目标
include(CTest)
add_test(NAME constant_neuron_test COMMAND constant_neuron_test)
add_test(NAME binary_neuron_test COMMAND binary_neuron_test)
add_test(NAME logistic_neuron_test COMMAND logistic_neuron_test)
add_test(NAME connectionFunctionGeneral_test COMMAND connectionFunctionGeneral_test)
add_test(NAME connection_Function_identity_test COMMAND connection_Function_identity_test)
add_test(NAME neural_network_test COMMAND neural_network_test)
add_test(NAME dataset_test COMMAND dataset_test)
add_test(NAME particle_swarm_test COMMAND particle_swarm_test)
add_test(NAME particle_test COMMAND particle_test)
add_test(NAME NeuralNetworkSum_test COMMAND NeuralNetworkSum_test)
add_test(NAME errorfunction_test COMMAND errorfunction_test)
add_test(NAME DESolver_test COMMAND DESolver_test)
include(CodeCoverage.cmake)
APPEND_COVERAGE_COMPILER_FLAGS()
SETUP_TARGET_FOR_COVERAGE_LCOV(
NAME coverage # New target name
EXECUTABLE ctest -C $ROOT_DIR/CTestTestfile.cmake # Executable in PROJECT_BINARY_DIR
DEPENDENCIES $Boost_LIBRARIES # Dependencies to build first
)
ctest 本身运行正确：
Test project /home/martin/4Neuro
Start 1: constant_neuron_test
1/12 Test #1: constant_neuron_test ................ Passed 0.04 sec
Start 2: binary_neuron_test
2/12 Test #2: binary_neuron_test .................. Passed 0.04 sec
Start 3: logistic_neuron_test
3/12 Test #3: logistic_neuron_test ................ Passed 0.05 sec
Start 4: connectionFunctionGeneral_test
4/12 Test #4: connectionFunctionGeneral_test ...... Passed 0.04 sec
Start 5: connection_Function_identity_test
5/12 Test #5: connection_Function_identity_test ... Passed 0.04 sec
Start 6: neural_network_test
6/12 Test #6: neural_network_test ................. Passed 0.04 sec
Start 7: dataset_test
7/12 Test #7: dataset_test ........................ Passed 0.04 sec
Start 8: particle_swarm_test
8/12 Test #8: particle_swarm_test ................. Passed 0.04 sec
Start 9: particle_test
9/12 Test #9: particle_test ....................... Passed 0.04 sec
Start 10: NeuralNetworkSum_test
10/12 Test #10: NeuralNetworkSum_test ............... Passed 0.05 sec
Start 11: errorfunction_test
11/12 Test #11: errorfunction_test .................. Passed 0.04 sec
Start 12: DESolver_test
12/12 Test #12: DESolver_test ....................... Passed 0.05 sec
100% tests passed, 0 tests failed out of 12
Total Test time (real) = 0.53 sec
但是当我尝试通过make coverage 创建我的覆盖率报告时，我收到了这个错误：
Processing code coverage counters and generating report.
cd /home/martin/4Neuro/build && /usr/bin/lcov --gcov-tool /usr/bin/gcov -directory . --zerocounters
Deleting all .da files in . and subdirectories
Done.
cd /home/martin/4Neuro/build && /usr/bin/lcov --gcov-tool /usr/bin/gcov -c -i -d . -o coverage.base
Capturing coverage data from .
Found gcov version: 7.3.0
Scanning . for .gcno files ...
geninfo: WARNING: no .gcno files found in . - skipping!
Finished .info-file creation
cd /home/martin/4Neuro/build && ctest -C /home/martin/4Neuro/CTestTestfile.cmake
Test project /home/martin/4Neuro/build
No tests were found!!!
cd /home/martin/4Neuro/build && /usr/bin/lcov --gcov-tool /usr/bin/gcov --directory . --capture --output-file coverage.info
Capturing coverage data from .
Found gcov version: 7.3.0
Scanning . for .gcda files ...
geninfo: WARNING: no .gcda files found in . - skipping!
Finished .info-file creation
cd /home/martin/4Neuro/build && /usr/bin/lcov --gcov-tool /usr/bin/gcov -a coverage.base -a coverage.info --output-file coverage.total
Combining tracefiles.
Reading tracefile coverage.base
lcov: ERROR: no valid records found in tracefile coverage.base
CMakeFiles/coverage.dir/build.make:62: recipe for target 'CMakeFiles/coverage' failed
make[3]: *** [CMakeFiles/coverage] Error 255
make[3]: Leaving directory '/home/martin/4Neuro'
CMakeFiles/Makefile2:70: recipe for target 'CMakeFiles/coverage.dir/all' failed
make[2]: *** [CMakeFiles/coverage.dir/all] Error 2
make[2]: Leaving directory '/home/martin/4Neuro'
CMakeFiles/Makefile2:77: recipe for target 'CMakeFiles/coverage.dir/rule' failed
make[1]: *** [CMakeFiles/coverage.dir/rule] Error 2
make[1]: Leaving directory '/home/martin/4Neuro'
Makefile:132: recipe for target 'coverage' failed
make: *** [coverage] Error 2
编辑 2
我已经像这样修改了我的 CMakeLists.txt
include(CTest)
enable_testing()
add_subdirectory($SRC_DIR $PROJECT_BINARY_DIR)
# Adding Unit-tests
add_test(NAME constant_neuron_test COMMAND constant_neuron_test)
add_test(NAME binary_neuron_test COMMAND binary_neuron_test)
add_test(NAME logistic_neuron_test COMMAND logistic_neuron_test)
add_test(NAME connectionFunctionGeneral_test COMMAND connectionFunctionGeneral_test)
add_test(NAME connection_Function_identity_test COMMAND connection_Function_identity_test)
add_test(NAME neural_network_test COMMAND neural_network_test)
add_test(NAME dataset_test COMMAND dataset_test)
add_test(NAME particle_swarm_test COMMAND particle_swarm_test)
add_test(NAME particle_test COMMAND particle_test)
add_test(NAME NeuralNetworkSum_test COMMAND NeuralNetworkSum_test)
add_test(NAME errorfunction_test COMMAND errorfunction_test)
add_test(NAME DESolver_test COMMAND DESolver_test)
include(CodeCoverage.cmake)
APPEND_COVERAGE_COMPILER_FLAGS()
SETUP_TARGET_FOR_COVERAGE_LCOV(
NAME coverage # New target name
EXECUTABLE ctest -j $n_cores # Executable in PROJECT_BINARY_DIR
DEPENDENCIES
constant_neuron_test
binary_neuron_test
logistic_neuron_test
connectionFunctionGeneral_test
connection_Function_identity_test
neural_network_test
dataset_test
particle_swarm_test
particle_test
NeuralNetworkSum_test
errorfunction_test
DESolver_test # Dependencies to build first
)
set(COVERAGE_EXCLUDES 'external_dependencies/*')
但不幸的是，错误仍然存在
cd /home/martin/4Neuro/build && /usr/bin/lcov --gcov-tool /usr/bin/gcov -c -i -d . -o coverage.base
Capturing coverage data from .
Found gcov version: 7.3.0
Scanning . for .gcno files ...
geninfo: WARNING: no .gcno files found in . - skipping!
Finished .info-file creation
cd /home/martin/4Neuro/build && ctest -j 3
Test project /home/martin/4Neuro/build
No tests were found!!!
cd /home/martin/4Neuro/build && /usr/bin/lcov --gcov-tool /usr/bin/gcov --directory . --capture --output-file coverage.info
Capturing coverage data from .
Found gcov version: 7.3.0
Scanning . for .gcda files ...
geninfo: WARNING: no .gcda files found in . - skipping!
Finished .info-file creation
cd /home/martin/4Neuro/build && /usr/bin/lcov --gcov-tool /usr/bin/gcov -a coverage.base -a coverage.info --output-file coverage.total
Combining tracefiles.
Reading tracefile coverage.base
lcov: ERROR: no valid records found in tracefile coverage.base
CMakeFiles/coverage.dir/build.make:71: recipe for target 'CMakeFiles/coverage' failed
make[3]: *** [CMakeFiles/coverage] Error 255
make[3]: Leaving directory '/home/martin/4Neuro'
CMakeFiles/Makefile2:81: recipe for target 'CMakeFiles/coverage.dir/all' failed
make[2]: *** [CMakeFiles/coverage.dir/all] Error 2
make[2]: Leaving directory '/home/martin/4Neuro'
CMakeFiles/Makefile2:88: recipe for target 'CMakeFiles/coverage.dir/rule' failed
make[1]: *** [CMakeFiles/coverage.dir/rule] Error 2
make[1]: Leaving directory '/home/martin/4Neuro'
Makefile:132: recipe for target 'coverage' failed
make: *** [coverage] Error 2
【问题讨论】：
您可以使用 ctest 作为可执行文件。它将运行您的单元测试。 似乎虽然参数被声明为multivalue 参数，但进一步的处理使用提供给EXECUTABLE 的名字。也许您可以像您的测试可执行文件一样多次使用SETUP_TARGET_FOR_COVERAGE_LCOV 命令；每个覆盖目标将获得不同的名称。不确定结果会发生什么，但我猜它们会合并（没有使用过这个模块）。
@jsantander 我已经尝试使用ctest，正如你所建议的那样。到目前为止它不起作用 - 请参阅我的编辑。
@compor 恐怕它们不会合并，因为如果我理解正确，您应该一个接一个地make。
在我的项目中，我有它EXECUTABLE ctest -j $PROCESSOR_COUNT，它选择了两个不同的单元测试可执行文件。
【参考方案1】：
我也遇到了这个问题，并努力寻找解决方案。对我来说，解决方法是将此 CMake 代码移到已定义的任何其他目标之上：
include(CodeCoverage.cmake)
APPEND_COVERAGE_COMPILER_FLAGS()
看起来如果首先定义目标然后编译器标志没有更新。
【讨论】：
【参考方案2】：好的，我尝试复制您的最小设置。
我有：
.
├── CMakeLists.txt
├── CodeCoverage.cmake
├── test1.cpp
└── test2.cpp
CodeCoverage.cmake 来自https://github.com/bilke/cmake-modules/blob/master/CodeCoverage.cmake
CMakeLists.txt 是：
cmake_minimum_required(VERSION 3.10)
find_package(Boost COMPONENTS system filesystem unit_test_framework REQUIRED)
include(CTest)
enable_testing()
add_executable(test1_test test1.cpp)
target_link_libraries(test1_test
$Boost_FILESYSTEM_LIBRARY
$Boost_SYSTEM_LIBRARY
$Boost_UNIT_TEST_FRAMEWORK_LIBRARY)
add_executable(test2_test test2.cpp)
target_link_libraries(test2_test
$Boost_FILESYSTEM_LIBRARY
$Boost_SYSTEM_LIBRARY
$Boost_UNIT_TEST_FRAMEWORK_LIBRARY)
add_test(NAME test1_test COMMAND test1_test)
add_test(NAME test2_test COMMAND test2_test)
include(CodeCoverage.cmake)
APPEND_COVERAGE_COMPILER_FLAGS()
SETUP_TARGET_FOR_COVERAGE_LCOV(
NAME coverage
EXECUTABLE ctest -j $n_cores # Executable in PROJECT_BINARY_DIR
DEPENDENCIES
test1_test
test2_test)
而test1.cpp（和test2.cpp）是
#define BOOST_TEST_MODULE test1
#ifndef BOOST_TEST_DYN_LINK
#define BOOST_TEST_DYN_LINK
#endif
#define BOOST_TEST_MAIN
#include <boost/test/unit_test.hpp>
#include <boost/test/output_test_stream.hpp>
#define BOOST_TEST_MODULE test1
BOOST_AUTO_TEST_SUITE(test1)
BOOST_AUTO_TEST_CASE(test1__test)
BOOST_CHECK_EQUAL(1, 1);
BOOST_AUTO_TEST_SUITE_END()
现在我做：
mkdir build
cd build
cmake ..
输出是：
-- The C compiler identification is GNU 7.3.0
-- The CXX compiler identification is GNU 7.3.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Boost version: 1.65.1
-- Found the following Boost libraries:
-- system
-- filesystem
-- unit_test_framework
CMake Warning at CodeCoverage.cmake:116 (message):
Code coverage results with an optimised (non-Debug) build may be misleading
Call Stack (most recent call first):
CMakeLists.txt:20 (include)
-- Appending code coverage compiler flags: -g -O0 --coverage -fprofile-arcs -ftest-coverage
-- Configuring done
-- Generating done
-- Build files have been written to: /home/jsantand/t/build
终于运行make coverage：
Scanning dependencies of target test1_test
[ 20%] Building CXX object CMakeFiles/test1_test.dir/test1.cpp.o
[ 40%] Linking CXX executable test1_test
[ 40%] Built target test1_test
Scanning dependencies of target test2_test
[ 60%] Building CXX object CMakeFiles/test2_test.dir/test2.cpp.o
[ 80%] Linking CXX executable test2_test
[ 80%] Built target test2_test
Scanning dependencies of target coverage
[100%] Resetting code coverage counters to zero.
Processing code coverage counters and generating report.
Deleting all .da files in . and subdirectories
Done.
Capturing coverage data from .
Found gcov version: 7.3.0
Scanning . for .gcno files ...
Found 2 graph files in .
Processing test1_test.dir/test1.cpp.gcno
Processing test2_test.dir/test2.cpp.gcno
Finished .info-file creation
Test project /home/jsantand/t/build
Start 1: test1_test
1/2 Test #1: test1_test ....................... Passed 0.01 sec
Start 2: test2_test
2/2 Test #2: test2_test ....................... Passed 0.01 sec
100% tests passed, 0 tests failed out of 2
Total Test time (real) = 0.02 sec
Capturing coverage data from .
Found gcov version: 7.3.0
Scanning . for .gcda files ...
Found 2 data files in .
Processing test1_test.dir/test1.cpp.gcda
Processing test2_test.dir/test2.cpp.gcda
Finished .info-file creation
Combining tracefiles.
Reading tracefile coverage.base
Reading tracefile coverage.info
Writing data to coverage.total
Summary coverage rate:
lines......: 65.4% (229 of 350 lines)
functions..: 68.3% (110 of 161 functions)
branches...: no data found
Reading tracefile coverage.total
Deleted 0 files
Writing data to /home/jsantand/t/build/coverage.info.cleaned
Summary coverage rate:
lines......: 65.4% (229 of 350 lines)
functions..: 68.3% (110 of 161 functions)
branches...: no data found
Reading data file /home/jsantand/t/build/coverage.info.cleaned
Found 37 entries.
Found common filename prefix "/usr/include"
Writing .css and .png files.
Generating output.
Processing file /home/jsantand/t/test1.cpp
Processing file /home/jsantand/t/test2.cpp
Processing file boost/type_index.hpp
Processing file boost/function/function_base.hpp
Processing file boost/function/function_template.hpp
Processing file boost/smart_ptr/shared_ptr.hpp
Processing file boost/smart_ptr/detail/sp_counted_base_std_atomic.hpp
Processing file boost/smart_ptr/detail/shared_count.hpp
Processing file boost/test/unit_test_suite.hpp
Processing file boost/test/unit_test.hpp
Processing file boost/test/unit_test_log.hpp
Processing file boost/test/tools/assertion_result.hpp
Processing file boost/test/tools/detail/print_helper.hpp
Processing file boost/test/tools/detail/fwd.hpp
Processing file boost/test/tools/old/impl.hpp
Processing file boost/test/tree/observer.hpp
Processing file boost/test/tree/test_unit.hpp
Processing file boost/test/tree/fixture.hpp
Processing file boost/test/tree/decorator.hpp
Processing file boost/test/utils/lazy_ostream.hpp
Processing file boost/test/utils/class_properties.hpp
Processing file boost/test/utils/trivial_singleton.hpp
Processing file boost/test/utils/wrap_stringstream.hpp
Processing file boost/test/utils/basic_cstring/bcs_char_traits.hpp
Processing file boost/test/utils/basic_cstring/basic_cstring.hpp
Processing file boost/type_index/type_index_facade.hpp
Processing file boost/type_index/stl_type_index.hpp
Processing file boost/type_traits/integral_constant.hpp
Processing file c++/7/typeinfo
Processing file c++/7/bits/ios_base.h
Processing file c++/7/bits/move.h
Processing file c++/7/bits/alloc_traits.h
Processing file c++/7/bits/stl_construct.h
Processing file c++/7/bits/stl_vector.h
Processing file c++/7/bits/atomic_base.h
Processing file c++/7/bits/allocator.h
Processing file c++/7/ext/new_allocator.h
Writing directory view page.
Overall coverage rate:
lines......: 65.4% (229 of 350 lines)
functions..: 68.3% (110 of 161 functions)
Lcov code coverage info report saved in coverage.info.
Open ./coverage/index.html in your browser to view the coverage report.
[100%] Built target coverage
【讨论】：
非常感谢！我不知道为什么我的代码仍然无法正常工作，因为它与这个基本相同。你介意看看我的代码（git@code.it4i.cz:bes0030/4Neuro.git，分支coverage，使用build.sh进行基本编译）吗？我很好奇它是否会在您的计算机上运行。【参考方案3】：
在 CMake 中，语句的顺序很重要，而您应该放置它们的顺序并不总是那么简单。如果其他人仍然需要对此的答案，请在定义编译器属性之后，在您的根 CMakeLists.txt 的开头处尝试此操作。例如：
include(CTest)
enable_testing()
set(CMAKE_MODULE_PATH $CMAKE_MODULE_PATH "$PROJECT_SOURCE_DIR/cmake")
include(CodeCoverage)
append_coverage_compiler_flags()
setup_target_for_coverage_gcovr_html(
NAME coverage
EXECUTABLE test_basics
DEPENDENCIES test_basics mysqrt
)
假设您的 CodeCoverage.cmake 位于项目中的 cmake 目录下。生成测试覆盖率报告：
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE:STRING=Debug
make coverage
您的报告将在./coverage/index.html 下提供。
【讨论】：
【参考方案4】：我已经设法获得了一个有效的设置：
-
使用不同的编译器标志编译调试和发布代码
运行测试
创建代码覆盖率和分支覆盖率 html 报告
先决条件
提升：
sudo apt-get install libboost-all-dev
CMake 3.21.0：（转到 https://cmake.org/download/ 获取最新版本）
sudo apt install build-essential libssl-dev
wget https://github.com/Kitware/CMake/releases/download/v3.21.0/cmake-3.21.0.tar.gz
tar -zxvf cmake-3.21.0.tar.gz
cd cmake-3.21.0
./bootstrap
make
sudo make install
设置
文件夹结构：
┌ mhcl
├──┬ build
│ ├── debug
│ └── release
├──┬ src
│ ├──┬ biginteger
│ │ ├── biginteger.cpp
│ │ └── biginteger.h
│ ├── CMakeLists.txt
│ └── main.cpp
├──┬ test
│ ├── CMakeLists.txt
│ ├── CodeCoverage.cmake
│ ├── test_biginteger_add.cpp
│ ├── test_biginteger_constructor.cpp
│ ├── test_biginteger_divide.cpp
│ └── test_biginteger_multiply.cpp
└── CMakeLists.txt
src/biginteger/biginteger.cpp:
...
void BigInteger::add(const BigInteger &summand2)
if(isNegative() == summand2.isNegative())
add_digits(summand2);
else
subtract_digits(summand2);
if(getNumber(false) == "0") setNegative(false);
...
src/biginteger/biginteger.h:
#ifndef BIGINTEGER_H_INCLUDED
#define BIGINTEGER_H_INCLUDED
#include <iostream>
#include <string>
#include <algorithm>
#include <cstring>
#include <stdexcept>
class BigInteger
public:
BigInteger(const char*);
...
mhcl/CMakeLists.txt:
cmake_minimum_required(VERSION 3.20)
add_compile_options(-Wall -Wextra -pedantic -Werror)
project(MHCL VERSION 0.1 DESCRIPTION "mhcl, a cryptographic library" LANGUAGES CXX)
set(CMAKE_CXX_FLAGS_DEBUG "-g -O0 -fprofile-arcs -ftest-coverage")
set(CMAKE_CXX_FLAGS_RELEASE "-O2")
add_subdirectory(test)
add_subdirectory(src)
add_executable (demo src/main.cpp)
target_link_libraries (demo biginteger)
mhcl/src/CMakeLists.txt:
add_library(biginteger biginteger/biginteger.cpp biginteger/biginteger.h)
mhcl/src/main.cpp:
#include <iostream>
#include <string>
#include "biginteger/biginteger.h"
// this file is not really necessary for testing
int main()
BigInteger b("3");
return 0;
mhcl/test/CMakeLists.txt：
IF(CMAKE_BUILD_TYPE MATCHES Debug)
find_package (Boost COMPONENTS system filesystem unit_test_framework REQUIRED) # sudo apt-get install libboost-all-dev
include_directories ($MHCL_SOURCE_DIR/src $Boost_INCLUDE_DIRS)
add_executable (test_biginteger_constructor test_biginteger_constructor.cpp)
target_link_libraries (test_biginteger_constructor biginteger $Boost_FILESYSTEM_LIBRARY $Boost_SYSTEM_LIBRARY $Boost_UNIT_TEST_FRAMEWORK_LIBRARY)
add_executable (test_biginteger_add test_biginteger_add.cpp)
target_link_libraries (test_biginteger_add biginteger $Boost_FILESYSTEM_LIBRARY $Boost_SYSTEM_LIBRARY $Boost_UNIT_TEST_FRAMEWORK_LIBRARY)
add_executable (test_biginteger_multiply test_biginteger_multiply.cpp)
target_link_libraries (test_biginteger_multiply biginteger $Boost_FILESYSTEM_LIBRARY $Boost_SYSTEM_LIBRARY $Boost_UNIT_TEST_FRAMEWORK_LIBRARY)
add_executable (test_biginteger_divide test_biginteger_divide.cpp)
target_link_libraries (test_biginteger_divide biginteger $Boost_FILESYSTEM_LIBRARY $Boost_SYSTEM_LIBRARY $Boost_UNIT_TEST_FRAMEWORK_LIBRARY)
include(CTest)
enable_testing()
add_test(NAME test_biginteger_constructor COMMAND test_biginteger_constructor)
add_test(NAME test_biginteger_add COMMAND test_biginteger_add)
add_test(NAME test_biginteger_multiply COMMAND test_biginteger_multiply)
add_test(NAME test_biginteger_divide COMMAND test_biginteger_divide)
include(CodeCoverage.cmake)
APPEND_COVERAGE_COMPILER_FLAGS()
setup_target_for_coverage_gcovr_html(NAME coverage EXECUTABLE ctest --schedule-random -j 4 --test-dir test EXCLUDE "/usr/*" "/mnt/v/r3dapple.github.io/encryption/mhcl/test/*" "/mnt/v/r3dapple.github.io/encryption/mhcl/src/main.cpp" DEPENDENCIES test_biginteger_constructor test_biginteger_add test_biginteger_multiply test_biginteger_divide)
ENDIF()
mhcl/test/CodeCoverage.cmake:
https://github.com/bilke/cmake-modules/blob/master/CodeCoverage.cmake
mhcl/test_biginteger_add.cpp：
#define BOOST_TEST_MODULE BigIntegerTestAdd
#include <boost/test/unit_test.hpp>
#include "../src/biginteger/biginteger.h"
BOOST_AUTO_TEST_SUITE(IDENTITY_ELEMENT)
BOOST_AUTO_TEST_CASE(ADDITION_ZERO_LENGTH1_184_LENGTH2_1_SIGN1_PLUS_SIGN2_PLUS)
BigInteger b("7941336097231331222328305438625646002846406186146402399842122390970234239963370898300943198440768677925436553855703282917116959906917075742261367262117888460342170898243453976126509330");
b.add("0");
BOOST_CHECK_EQUAL(b.getNumber(), "7941336097231331222328305438625646002846406186146402399842122390970234239963370898300943198440768677925436553855703282917116959906917075742261367262117888460342170898243453976126509330");
BOOST_AUTO_TEST_SUITE_END()
...
用法
构建调试：
cd mhcl/build/debug && cmake -DCMAKE_BUILD_TYPE=Debug ../.. && make && make coverage
您的覆盖率报告在 mhcl/build/debug/coverage/index.html 下
构建版本：
cd mhcl/build/release && cmake -DCMAKE_BUILD_TYPE=Release ../.. && make
【讨论】：
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使用具有多个目标的 CodeCoverage.cmake 进行代码覆盖率分析