Hi Oliver, Thank you for this great introduction tutorial.
Performing this code and test in February 2022, it is interesting to see how much Solidity and its testing libraries have changed.
When I follow your code to import the required libraries, they appear as updated versions, which is rightfully expected. What's interesting is that with the updated versions, the tests do not run. My code compiles, but 0 tests pass.
When I copy your code exactly so that the previous "old" versions are input instead, everything works as intended.
I understand that libraries can get outdated and old versions may not work with newer updates. I'm just surprised that your post is not even a year old, and already the code is outdated for a 2022 test.
Thank you again for your guidance.