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2023-05-15Fix some bounds in rapid check instancesJohn Ericson
`inRange` is exclusive not inclusive: https://github.com/emil-e/rapidcheck/blob/master/doc/generators.md#usage Furthermore, use `std::variant_size_v` so we use the right number automatically. Finally, make the `switch` assert the discriminant is in bounds as expected.
2023-04-14Legacy vs non-legacy `to_string`/`parse` for `DerivedPath`John Ericson
As requested by @roberth, it is good to call out the specific instances we care about, which is `!` for the RPC protocols, and `^` for humans. This doesn't take advantage of parametricity as much, but since the human and computer interfaces are good to decouple anyways (we don't care if they drift further apart over time in the slightest) some separation and slight duplication is fine. Also, unit test both round trips.
2023-01-30Make per-variant Arbitrary impls tooJohn Ericson
This is a nice idea that @roberth requested. If we could factor our a generic `std::variant` impl as a follow-up it would be even better!
2023-01-29More property testsJohn Ericson
Also put proper comparison methods on `DerivedPath` and `NixStringContextElem`, which is needed for the tests but good in general.