链接 gtest 项目时出错

Error when linking gtest project

本文关键字：出错 项目 gtest 链接      更新时间：2023-10-16

最近我开始学习单元测试，我想用gtest测试我的程序。我用这个顺序安装所有：

$ git clone https://github.com/google/googletest 
$ cd googletest 
$ cmake -DBUILD_SHARED_LIBS=ON . 
$ make 
$ cd googlemock 
$ sudo cp ./libgmock_main.so ./gtest/libgtest.so gtest/libgtest_main.so ./libgmock.so /usr/lib/ 
$ sudo ldconfig

现在写代码：

#include "gtest/gtest.h"
class Add
{
private:
int element;
public:
Add():element(0){}
~Add(){}
void setElement(int e){ element = e; }
int getElement() { return element; }
int adder(int e) { return element += e; }
};
class AddTest : public ::testing::Test
{
protected:
int abc(int a){
return a;
}
virtual void SetUp(){
add1.setElement(1);
add2.setElement(20);
}
virtual void TearDown(){}
Add add1;
Add add2;
};
TEST_F(AddTest, getTest)
{
EXPECT_EQ(1, add1.getElement());
EXPECT_EQ(20, add2.getElement());
}
int main(int argc, char **argv)
{
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}

当我运行测试时结束，我收到此错误：

CMakeFiles/mock2.dir/main.cpp.o： in functionAddTest_getTest_Test::TestBody()': /home/artem/CLionProjects/mock2/main.cpp:33: undefined reference totesting：：Message：：Message()'/home/artem/CLionProjects/mock2/main.cpp：33： 对testing::internal::AssertHelper::AssertHelper(testing::TestPartResult::Type, char const*, int, char const*)' /home/artem/CLionProjects/mock2/main.cpp:33: undefined reference to测试的未定义引用：：internal：：AssertHelper：：operator=(testing：：Message const&) const'/home/artem/CLionProjects/mock2/main.cpp：33： 对testing::internal::AssertHelper::~AssertHelper()' /home/artem/CLionProjects/mock2/main.cpp:34: undefined reference to测试的未定义引用：：Message：：Message()'/home/artem/CLionProjects/mock2/main.cpp：34： 对testing::internal::AssertHelper::AssertHelper(testing::TestPartResult::Type, char const*, int, char const*)' /home/artem/CLionProjects/mock2/main.cpp:34: undefined reference to测试的未定义引用：：internal：：AssertHelper：：operator=(testing：：Message const&) const'/home/artem/CLionProjects/mock2/main.cpp：34： 对testing::internal::AssertHelper::~AssertHelper()' /home/artem/CLionProjects/mock2/main.cpp:33: undefined reference to测试的未定义引用：：internal：：AssertHelper：：~AssertHelper()'/home/artem/CLionProjects/mock2/main.cpp：34： 对testing::internal::AssertHelper::~AssertHelper()' CMakeFiles/mock2.dir/main.cpp.o: In functionmain'的未定义引用：/home/artem/CLionProjects/mock2/main.cpp：39： 对testing::InitGoogleTest(int*, char**)' CMakeFiles/mock2.dir/main.cpp.o: In function__static_initialization_and_destruction_0(int， int)'的未定义引用：/home/artem/CLionProjects/mock2/main.cpp：31： 对testing::internal::MakeAndRegisterTestInfo(char const*, char const*, char const*, char const*, testing::internal::CodeLocation, void const*, void (*)(), void (*)(), testing::internal::TestFactoryBase*)' CMakeFiles/mock2.dir/main.cpp.o: In functionRUN_ALL_TESTS()'的未定义引用：/usr/local/include/gtest/gtest.h：2235：未定义对testing::UnitTest::GetInstance()' /usr/local/include/gtest/gtest.h:2235: undefined reference to测试的引用：：UnitTest：：Run()' CMakeFiles/mock2.dir/main.cpp.o： in functionAddTest::AddTest()': /home/artem/CLionProjects/mock2/main.cpp:15: undefined reference totesting：：Test：：Test()' CMakeFiles/mock2.dir/main.cpp.o： In functionAddTest::~AddTest()': /home/artem/CLionProjects/mock2/main.cpp:15: undefined reference totesting：：Test：：~Test()' CMakeFiles/mock2.dir/main.cpp.o： In functiontesting::internal::scoped_ptr<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >::reset(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*)': /usr/local/include/gtest/internal/gtest-port.h:1172: undefined reference totesting：：internal：：IsTrue(bool)' CMakeFiles/mock2.dir/main.cpp.o： In functiontesting::internal::scoped_ptr<std::__cxx11::basic_stringstream<char, std::char_traits<char>, std::allocator<char> > >::reset(std::__cxx11::basic_stringstream<char, std::char_traits<char>, std::allocator<char> >*)': /usr/local/include/gtest/internal/gtest-port.h:1172: undefined reference totesting：：internal：：IsTrue(bool)' CMakeFiles/mock2.dir/main.cpp.o： In functiontesting::AssertionResult testing::internal::CmpHelperEQ<int, int>(char const*, char const*, int const&, int const&)': /usr/local/include/gtest/gtest.h:1394: undefined reference totesting：：AssertionSuccess()' CMakeFiles/mock2.dir/main.cpp.o： In functiontesting::AssertionResult testing::internal::CmpHelperEQFailure<int, int>(char const*, char const*, int const&, int const&)': /usr/local/include/gtest/gtest.h:1384: undefined reference totesting：：internal：：EqFailure(char const*， char const*， std：：__cxx11：：basic_string， std：：allocator> const&， std：：__cxx11：：basic_string， std：：allocator> const&， bool)' CMakeFiles/mock2.dir/main.cpp.o：(.rodata._ZTI7AddTest[_ZTI7AddTest]+0x10)：未定义对"typeinfo for testing：：Test"的引用 collect2：错误：ld 返回 1 个退出状态 CMakeFiles/mock2.dir/build.make：94：目标"mock2"的配方失败 制造[3]：* [模拟2] 错误 1 CMakeFiles/Makefile2：67：目标"CMakeFiles/mock2.dir/all"的配方失败 make[2]：[CMakeFiles/mock2.dir/all] 错误 2 CMakeFiles/Makefile2：79：目标"CMakeFiles/mock2.dir/rule"的配方失败 make[1]：[CMakeFiles/mock2.dir/rule] 错误 2 生成文件：118：目标"mock2"的配方失败 制造： *[模拟2] 错误 2

但是当使用命令时

g++ main.cpp -o test -lgtest -lpthread

一切都很好。如何修复它并不在命令行中运行它？

如果您使用的是 CLion，那么您可能有一个 CMakeLists.txt 文件，您应该添加规则以链接到库。为此，请将以下行添加到您的 CMakeList 中.txt

enable_testing()
find_package(GTest REQUIRED) # Find the google testing framework on your system
include_directories(${GTEST_INCLUDE_DIRS})
target_link_libraries(${PROJECT_NAME} ${GTEST_LIBRARIES}) # Replace ${PROJECT_NAME} with your target name

有关更多详细信息，请转到此处。

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