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 fib(7) == 12_i; // fib.cpp:5:FAILED [ 13 == 12 ]
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 C++Now 2021!
[1]:
https://godbolt.org/z/a7Mses[2]:
https://github.com/boost-ext/ut
