如何编译gtest cpp文件? [英] How to compile a gtest cpp file?

问题描述

在 Ubuntu Linux 上，我一直遵循 gtest 给出的说明 此处 安装 gtest，手动将头文件和库复制到 /usr/include 和 /usr/lib>，分别.

On Ubuntu Linux, I have been following the gtest instructions given here to install gtest with manually copying the header files and libraries to /usr/include and /usr/lib, respectively.

然后我尝试编译以下代码(test1.cpp)

I then tried to compile the following code (test1.cpp)

#include <gtest/gtest.h>
TEST(MathTest, TwoPlusTwoEqualsFour) {
    EXPECT_EQ(2 + 2, 4);
}

int main(int argc, char **argv) {
    ::testing::InitGoogleTest( &argc, argv );
    return RUN_ALL_TESTS();
}

使用以下命令

g++ -lgtest -lgtest_main -lpthread test1.cpp 

只是为了看到另一个无用的错误消息:

just to see yet another unhelpful error message:

/usr/bin/ld: /tmp/ccQlmghI.o: undefined reference to symbol '_ZN7testing8internal9EqFailureEPKcS2_RKSsS4_b'
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../lib/libgtest.so: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status

我该如何解决这个问题?或者是否有另一个单元测试框架可以以简单的方式使用，并带有一个工作示例?

How can I fix this? Or is there another unittest framework which can be used in a SIMPLE way, with a working example?

在此处提出了同样的问题，但没有答案.

The same question has been asked here, but without an answer.

推荐答案

g++ 的参数顺序很重要.源文件应该在目标文件和库(从高级到低级库)等之前.阅读关于 调用 GCC.

Order of arguments to g++ matters a lot. Source files should come before object files and libraries (from high-level to low-level libraries), etc. Read the chapter on invoking GCC.

那就试试吧:

g++ -Wall -g -pthread test1.cpp -lgtest_main  -lgtest -lpthread 

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