如何使用CppUnitTestFramework在Visual Studio本机C ++单元测试中获取$（ProjectDir）路径？

Question

I need to be able to retrieve the project directory path of my unit testing in order to load some files required by the tests. I don't want to hard-code it in case the solution structure and absolute paths changes in the future.

Answer 1

Ok, this is how I did it:

1. In my project Properties -> Configuration -> C/C++ -> Preprocessor I added this preprocessor definition UNITTESTPRJ="$(ProjectDir)."

2. Then in my cpp file I did:

#define STRINGIFY(x) #x

#define EXPAND(x) STRINGIFY(x)

string s = EXPAND(UNITTESTPRJ);
s.erase(0, 1); // erase the first quote
s.erase(s.size() - 2); // erase the last quote and the dot
string my_project_dir = s;

The stupid . at the end was necessary to escape the trailing \\" in the project directory.