TST: Add data driven tests based on xsref parquet files using Catch2
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steppi
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Mar 11, 2025
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| INFO("a := " << std::setprecision(std::numeric_limits<double>::max_digits10) << a << '\n' | ||
| << "b := " << b << '\n' | ||
| << "c := " << c << '\n' | ||
| << "z := " << z << '\n' | ||
| << "out := " << out << '\n' | ||
| << "desired := " << desired << '\n' | ||
| << "error := " << error << '\n' | ||
| << "tolerance := " << tol << '\n' | ||
| ); |
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If catchorg/Catch2#2226 lands. This could be replaced with
CAPTURE(a, b, c, z, out, desired, error, tolerance);
- this is what worked for the xsref first workflow
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This PR is a rough sketch of what I'm thinking of for tests. It uses Catch2 as the testing framework, and implements a custom Catch2 generator to iterate through test cases. Tests are only implemented for
hyp2f1on this PR. Once I have everything settled down, I plan to write a script to generate the test files for other functions since they follow a pretty straightforward recipe. I've only added tests for 64 bit Linux GCC, but more can come later. I'll need to add a parquet file of tolerances for every tested platform, but this shouldn't be too bad actually.I think Catch2 seems nice enough to work with. So far I've found one thing that it would be good to have fixed. It seems that all floating point numbers are printed with
std::fixedwhen using Catch2's built in logging features, whenstd::scientificis needed for our case in order to actual see floating point values to full precision. There's a languishing PR, catchorg/Catch2#2226, to allow setting the format tostd::scientific, which only needs a small tweak to make work. I see this as a bellweather. If I'm able to nudge this PR through on a reasonable timescale, then I think Catch2 is actively developed enough to be worth using here, but if the PR continues to languish, I guess we can just use GoogleTest or something. I'll leave a comment with more details on this.I haven't done any of the nice stuff with coverage that @inkydragon did. This is important, but this is just a sketch for now. @inkydragon, let me know if you think there's anything else that could be improved here. It also might be a good idea to set up ccache.
I'm not sure if github workflow i wrote will work yet. I still haven't got up to speed on testing those locally. The tests themselves due work locally for me though.