# Install
# Windows
下載並安裝 Visual Studio 2022 https://visualstudio.microsoft.com/zh-hant/downloads/
安裝下圖標線的套件
# Linux
更新 apt 資料庫
sudo apt update |
安裝以下套件
sudo apt install gcc g++ lcov | |
sudo apt install libgtest-dev |
進行以下操作
cd /usr/src/gtest | |
sudo cmake CMakeLists.txt | |
sudo make | |
sudo make install |
# Testing
# Example
// vs 2019 use #include "pch.h" | |
#include "gtest/gtest.h" | |
int iCompute(int iA, int iB, char cCommand[]) { | |
int i; | |
for (i = 0; i < strlen(cCommand); i++) { | |
if (cCommand[i] == 'A') | |
iA = iA + iB; | |
else if (cCommand[i] == 'B') | |
iB = iA + iB; | |
else | |
return -1; | |
} | |
return iA + iB; | |
} | |
TEST(TestCaseName, TestName) { | |
EXPECT_EQ(iCompute(5, 2, "ABA"), 25); | |
EXPECT_EQ(iCompute(5, 2, "CCC"), -1); | |
} | |
int main(int argc, char **argv) { | |
testing::InitGoogleTest(&argc, argv); | |
return RUN_ALL_TESTS(); | |
} |
# Windows
# Linux
// --coverage - The option is a synonym for -fprofile-arcs -ftest-coverage (when compiling) and -lgcov (when linking) | |
g++ -c main.cpp -o main.o --coverage | |
g++ main.o -o main -lgcov -lgtest -lpthread | |
./main > result.txt |
# Coverage Testing
# Linux
gcov main.gcda | |
mv main.cpp.gcov coverage.txt |
產生 HTML 圖表
lcov -c -d . -o test.info --rc lcov_branch_coverage=1 | |
lcov -o test.info -e test.info "*main*" --rc lcov_branch_coverage=1 // 過濾非原始碼 | |
genhtml --branch-coverage -o result test.info |
# 參考來源
- https://ithelp.ithome.com.tw/articles/10202905
- https://zhuanlan.zhihu.com/p/410077415
- https://zhuanlan.zhihu.com/p/431938210
- https://gcc.gnu.org/onlinedocs/gcc/Instrumentation-Options.html#Instrumentation-Options
