Testing
https://youtu.be/ta3S8CRN2TM?t=1306
https://youtu.be/cfh6ZrA19r4?t=983
Unit Tests​
For example I wrote tests for the code that computes your grades: TODO PUT A LINK
UnitTesting libraries​
There a few out there. I personaly use and recommend doctest. Other popular libraries include GoogleTest and Catch2.
Test-Driven Development (TDD)​
http://blog.wingman-sw.com/tdd-guided-by-zombies
Going further​
Going further
Phil Nash, Test Driven C++ (1h) About TDD