c++ - .CPP中的类定义时，CMake for Google测试

Question

当我的类定义位于.h文件中时，我的make命令未给出任何错误，并且我的测试已成功通过。

但是，一旦我将类定义移动到.cpp文件，我就会得到一个undefined reference to `Class::method(int)'。我应该如何相应地更改CMakeLists.txt？

CMakeLists.txt

cmake_minimum_required(VERSION 2.6)

# Locate GTest
find_package(GTest REQUIRED)
include_directories(${GTEST_INCLUDE_DIRS})

# Link runTests with what we want to test and the GTest and pthread library
add_executable(runTests tests.cpp)
target_link_libraries(runTests ${GTEST_LIBRARIES} ${GTEST_MAIN_LIBRARIES} pthread)

我遵循了本教程:

https://www.eriksmistad.no/getting-started-with-google-test-on-ubuntu/

例。导师

#ifndef INSTRUCTOR_H
#define INSTRUCTOR_H

#include <iostream>
#include <vector>
using namespace std;

class Instructor
{
    int instrId;
    string instrEmail;
    string instrPassword;

public:
    Instructor();
    void showGameStatus();
    void setInstrId(int newInstrId);
    int getInstrId();

};

#endif

讲师

#include <iostream>
#include "Instructor.h"
using namespace std;

Instructor::Instructor()
{
    cout << " Default Instructor Constructor\n";
    instrId = 0;
    instrEmail = "@jaocbs-university.de";
    instrPassword = "123";
}
void Instructor::setInstrId(const int newInstrId)
{
     instrId = newInstrId;
}

int Instructor::getInstrId()
{
    return instrId;
}

Answer 1

如果要获取这种“ undefined reference ”，请确保链接编译Instructor.cpp的结果，或者Instructor.cpp是测试的依赖项，具体取决于构建的组织方式。

这可能很简单:

add_executable(runTests tests.cpp Instructor.cpp)

虽然这可能需要根据您的路径的具体情况进行调整。