我正在尝试按照本教程来运行Google Tests文件,但是CMakeLists.txt
遇到了一些麻烦。
https://www.eriksmistad.no/getting-started-with-google-test-on-ubuntu/
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} pthread)
这里的runTests到底是什么?是我程序的main()文件吗?如何根据我的程序更换它?当前,当我使用make
时出现此错误:
/usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status
CMakeFiles/runTests.dir/build.make:95: recipe for target 'runTests' failed
make[2]: *** [runTests] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/runTests.dir/all' failed
make[1]: *** [CMakeFiles/runTests.dir/all] Error 2
Makefile:83: recipe for target 'all
main.cpp:((我也尝试将这一部分移到tests.cpp文件的末尾,但仍然无法正常工作)
#include <iostream>
#include "Player.h"
#include "gtest/gtest.h"
using namespace std;
int main(int argc, char **argv)
{
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
Player.h
#ifndef PLAYER_H
#define PLAYER_H
#include <iostream>
using namespace std;
class Player
{
int inventory;
public:
Player();
int decreaseInventory(int numOfBeers);
void setInventory(int newInventory);
int getBackOrder();
int getCost();
int getInventory();
bool operator ==(Player& p);
};
Player::Player()
{
cout << " Default Player Constructor\n";
inventory = 12;
backorder = 0;
cost = 0;
orderDelay = 0;
shipmentDeplay = 0;
}
void Player::setInventory(int newInventory)
{
inventory = newInventory;
}
int Player::decreaseInventory(int numOfBeers)
{
inventory = inventory - numOfBeers;
}
int Player::getInventory()
{
return inventory;
}
#endif
tests.cpp
#include "gtest/gtest.h"
#include "Player.h"
TEST(playerTest, decreaseInventoryTest ) {
Player p;
int curr_inv = p.getInventory();
EXPECT_EQ(curr_inv-3, p.decreaseInventory(3));
}
如何运行测试?
这里的runTests到底是什么?是我程序的main()文件吗?如何根据我的程序更换它?
runTests
是您要构建的可执行文件的名称。就像任何可执行文件一样,它需要一个main
,并且有两个选择:1)编写自己的文件或2)使用gtest提供的一个文件。如果要使用选项1,请在main.cpp
行中添加add_executable
。
add_executable(runTests tests.cpp main.cpp)
我认为更好的选择是使用GTest提供的main
,因为它为您提供了一些命令行参数。您可以通过将其添加到target_link_libraries
行中来使用它。
target_link_libraries(runTests ${GTEST_LIBRARIES} ${GTEST_MAIN_LIBRARIES} pthread)