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/*
* Created by Martin Hořeňovský on 03/04/2017.
*
* Distributed under the Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef TWOBLUECUBES_CATCH_MATCHERS_GENERIC_HPP_INCLUDED
#define TWOBLUECUBES_CATCH_MATCHERS_GENERIC_HPP_INCLUDED
#include "catch_common.h"
#include "catch_matchers.h"
#include <functional>
#include <string>
namespace Catch {
namespace Matchers {
namespace Generic {
namespace Detail {
std::string finalizeDescription(const std::string& desc);
}
template <typename T>
class PredicateMatcher : public MatcherBase<T> {
std::function<bool(T const&)> m_predicate;
std::string m_description;
public:
PredicateMatcher(std::function<bool(T const&)> const& elem, std::string const& descr)
:m_predicate(std::move(elem)),
m_description(Detail::finalizeDescription(descr))
{}
bool match( T const& item ) const override {
return m_predicate(item);
}
std::string describe() const override {
return m_description;
}
};
} // namespace Generic
// The following functions create the actual matcher objects.
// The user has to explicitly specify type to the function, because
// inferring std::function<bool(T const&)> is hard (but possible) and
// requires a lot of TMP.
template<typename T>
Generic::PredicateMatcher<T> Predicate(std::function<bool(T const&)> const& predicate, std::string const& description = "") {
return Generic::PredicateMatcher<T>(predicate, description);
}
} // namespace Matchers
} // namespace Catch
#endif // TWOBLUECUBES_CATCH_MATCHERS_GENERIC_HPP_INCLUDED
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