mirror of
https://github.com/catchorg/Catch2.git
synced 2024-11-25 14:56:10 +01:00
1ca8f43b01
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
10 lines
278 B
C++
10 lines
278 B
C++
#include "catch_matchers_generic.hpp"
|
|
|
|
std::string Catch::Matchers::Generic::Detail::finalizeDescription(const std::string& desc) {
|
|
if (desc.empty()) {
|
|
return "matches undescribed predicate";
|
|
} else {
|
|
return "matches predicate: \"" + desc + '"';
|
|
}
|
|
}
|