Convert tests to Catch2

bifurcation commented 9 months ago

As discussed in #415, doctest is broken and abandoned. Catch2 seems to be a more standard and more supported test framework. This PR converts MLSpp's tests from doctest to Catch2.

Adjust all the vcpkg.json files so that Catch2 is available in all configurations
Updates CMakeLists.txt in the test files to build/link against Catch2
Makes some minor fixes in test files to fix errors building against Catch2

And for good measure, I went ahead and re-enabled tests on Windows. We'll see what happens in CI!

bifurcation commented 9 months ago

It turns out that what happens in CI is that the Windows tests still hang without SANITIZERS and blow up with it. The latter appears to be a known issue, since 2022. So I have re-disabled Windows tests. It looks like we're going to have to address the hang more directly.

I think it's still worthwhile to merge this PR, in order to get on a more supported testing framework.

bifurcation commented 9 months ago

Merging based on offline 👍 from @glhewett and @birarda

glhewett commented 9 months ago

Did you meant to comment out all of the tests? I guess not: #418

cisco / mlspp

Convert tests to Catch2 #416