catch3/include/internal/catch_matchers_generic.cpp, branch dev-stupid-windows-things Progmasoft Catch3: an independently maintained C++17 test framework with a parallel runner, property checks, snapshots and structured results. Add PredicateMatcher that takes an arbitrary predicate functions 2018-04-04T09:14:19+00:00 Martin Hořeňovský 2018-04-03T21:28:14+00:00 1ca8f43b011ad61f4627a3339333406f15a46431 Also adds `Predicate` helper function to create `PredicateMatcher`. Because of limitations in type inference it needs to be explicitly typed, like so `Predicate<std::string>([](std::string const& str) { ... })`. It also takes an optional second argument for description of the predicate. It is possible to infer the argument with sufficient TMP, see https://stackoverflow.com/questions/43560492/how-to-extract-lambdas-return-type-and-variadic-parameters-pack-back-from-gener/43561563#43561563 but I don't think that the magic is worth introducing ATM. Closes #1236 
Also adds `Predicate` helper function to create `PredicateMatcher`.
Because of limitations in type inference it needs to be explicitly
typed, like so
`Predicate<std::string>([](std::string const& str) { ... })`.
It also takes an optional second argument for description of the
predicate.

It is possible to infer the argument with sufficient TMP, see
https://stackoverflow.com/questions/43560492/how-to-extract-lambdas-return-type-and-variadic-parameters-pack-back-from-gener/43561563#43561563
but I don't think that the magic is worth introducing ATM.

Closes #1236