Testing in C++ is not easy, it often requires a lot of boilerplate code, macro usage, and/or understanding of complicated testing frameworks.
But it doesn't have to be like that. C++20 will enable us to reinvent the way we write tests!
In this case study, we will address the difficulty of testing with C++ by implementing a new, fully functional, macro-free testing framework 1 from scratch with modern C++20 features to make the following snippet compile and run:
01 import ut;
02
03 int main() {
04 "fib"_test = [] { // Running "fib"...
05 12_i == fib(7); // fib.cpp:5:FAILED [ 12 == 13 ]
06 }; // tests: 1 | 1 failed
07 } // asserts: 1 | 0 passed | 1 failed
At the end of this session, the audience will have a better understanding of C++20 features such as:
- Modules
- Concepts
- Source Location
- New additions to lambdas
- User-Defined Literals
Additionally, attendees will get familiar with an expressive way of testing with modern C++ based on UT - Unit Testing Framework [2].
Let's get ready to follow the Beyonce rule - 'If you liked it then you "should put a"_test on it' and test all the things at CppCon 2021!
[1]: https://godbolt.org/z/Kr4PPexsM
[2]: https://github.com/boost-ext/ut
ALL TALK SESSIONS CAN BE ACCESSED FROM THE MAIN LOBBY:
https://cppcon.digital-medium.co.uk/
