Catch2 Catch.hpp

[Charlotta Menchaca]

Theproblem is quite simple: clonning catchorg/Catch2 now gets you a v3 branch by default, which works differently. The most important change is that it is no longer single header, and that the catch2/catch.hpp header no longer exists.

Catch is a testing framework for C++, i.e. a colection of macros that simplify the process of testing functions. To use catch, start by downloading the single header version at: _include/catch2/catch.hpp

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