> Catch2 is great as a unit test framework.

It's "great" mainly in the sense of being very large, and making your code very lage - and slow to build. I would not recommend it unless you absolutely must have some particular feature not existing elsewhere.

Here's a long list of C++ unit testing frameworks: https://en.wikipedia.org/wiki/List_of_unit_testing_framework...

And you might consider:

* doctest: https://github.com/doctest/doctest

* snitch: https://github.com/snitch-org/snitch

* ut/micro-test: https://github.com/boost-ext/ut

I guess I consider it great in comparison to CppUnit, Boost Test, and Google Test. I also like that it incorporated nonius, that's a big win.