环境: win7/win10+qt5.8.0(MinGW),
1.gtest获取: 从:https://www.bogotobogo.com/cplusplus/google_unit_test_gtest.php
获取gtest-1.7.0-rc1.zip,下载链接,下载打包的源码
或在git仓库下载: git clone https://github.com/google/googletest.git
2.解压gtest-1.7.0;在Qt创建一个静态C++库项目,将生成的Qt project文件拷贝到gtest-1.7.0目录下,命名为:gtest.pro;
3.编辑gtest.pro:主要添加源文件(SOURCES)信息和包含信息如下:
SOURCES += src/gtest_main.cc\
src/gtest.cc\
......
(所有src目录下所有源文件)
INCLUDEPATH += ./include
TEMPLATE +=lib
代码如下:
1 #------------------------------------------------- 2 # 3 # Project created by QtCreator 2019-04-24T17:05:02 4 # 5 #------------------------------------------------- 6 7 QT -= gui 8 9 TARGET = gtest 10 TEMPLATE = lib 11 CONFIG += staticlib 12 INCLUDEPATH +=./include 13 14 # The following define makes your compiler emit warnings if you use 15 # any feature of Qt which as been marked as deprecated (the exact warnings 16 # depend on your compiler). Please consult the documentation of the 17 # deprecated API in order to know how to port your code away from it. 18 DEFINES += QT_DEPRECATED_WARNINGS 19 20 # You can also make your code fail to compile if you use deprecated APIs. 21 # In order to do so, uncomment the following line. 22 # You can also select to disable deprecated APIs only up to a certain version of Qt. 23 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 24 25 SOURCES += src/gtest.cc\ 26 src/gtest_main.cc\ 27 src/gtest-all.cc\ 28 src/gtest-death-test.cc\ 29 src/gtest-filepath.cc\ 30 src/gtest-port.cc\ 31 src/gtest-printers.cc\ 32 src/gtest-test-part.cc\ 33 src/gtest-typed-test.cc 34 35 HEADERS += qtlib.h 36 unix { 37 target.path = /usr/lib 38 INSTALLS += target 39 }
4.使用Qt打开gtest.pro工程, 进行构建, Qt会在.pro的上一级目录下生成对应的编译目录和输出目录, 如下图:
在输出目录下, 可以看到MinGW编译出的gtest库文件libgtest.a和main.o,如下图:
5.编译得到想要的gtest库后, 开始使用在Qt环境下使用:
使用Qt新建一个console的验证工程gtestforqt;
将gtest-1.7.0\include路径下的文件夹gtest拷贝到验证工程的gtestforqt文件夹下,同时将MinGW编译出的gtest库文件libgtest.a也拷贝到gtestforqt文件夹;
编辑gtestforqt.pro文件, 使其可以连接到我们编译的gtest库文件, 代码如下:
QT += core QT -= gui CONFIG += c++11 INCLUDEPATH += ..\gtestforqt\include //增加对gtest头文件的链接路径 LIBS += ..\gtestforqt\libgtest.a //是增加对gtest库文件的链接路径 TARGET = gtestforqt CONFIG += console CONFIG -= app_bundle TEMPLATE = app SOURCES += main.cpp # The following define makes your compiler emit warnings if you use # any feature of Qt which as been marked deprecated (the exact warnings # depend on your compiler). Please consult the documentation of the # deprecated API in order to know how to port your code away from it. DEFINES += QT_DEPRECATED_WARNINGS # You can also make your code fail to compile if you use deprecated APIs. # In order to do so, uncomment the following line. # You can also select to disable deprecated APIs only up to a certain version of Qt. #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
编辑源文件(main.cpp),include gtest的文件,并初始化gtest, 代码如下:
#include <QCoreApplication> #include "gtest\gtest.h" int main(int argc, char *argv[]) { QCoreApplication a(argc, argv); testing::InitGoogleTest(&argc,argv); return RUN_ALL_TESTS(); /*在编译的时候会链接src/gtest_main.cc 文件,这个文件包含了 main()函数,在main()函数里调用RUN_ALL_TESTS(), 而此函数会调用我们所定义 的所有TEST()函数,并打印运行结果,返回值为0表示成功,为1表示失败。*/
构建运行后, gtest成功执行;
6.简单的单元测试举例如下:
#include <QCoreApplication> #include "gtest\gtest.h" using namespace std; int Factorial(int n) { int result = 1; for (int i = 1; i <= n; i++) { result *= i; } return result; } bool IsPrime(int n) { if (n <= 1) return false; if (n % 2 == 0) return n == 2; for (int i = 3; ; i += 2) { if (i > n/i) break; if (n % i == 0) return false; } return true; } TEST(zhengshu_Test,zhengshu) { EXPECT_EQ(2, Factorial(2)); //EXPECT_EQ(expected,actual)与EXPECT_TRUE((expected) == (actual))等同, EXPECT_EQ(1,Factorial(0)); EXPECT_EQ(1, Factorial(1)); //当EXPECT_EQ(expected,actual)失败时会打印出期望的值与实际的值 EXPECT_EQ(6, Factorial(3)); //但EXPECT_TRUE可以接受任何类型的布尔表达式 EXPECT_EQ(2, Factorial(8)); //eg:falied case } TEST(IsPrimeTest, Trivial) { EXPECT_FALSE(IsPrime(5)); //eg:falied case EXPECT_FALSE(IsPrime(1)); EXPECT_TRUE(IsPrime(2)); EXPECT_TRUE(IsPrime(3)); } int main(int argc, char *argv[]) { QCoreApplication a(argc, argv); testing::InitGoogleTest(&argc,argv); return RUN_ALL_TESTS(); }
运行结果如下图: