catch2/include/internal/catch_matchers_vector.h

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/*
* Created by Phil Nash on 21/02/2017.
* Copyright (c) 2017 Two Blue Cubes Ltd. All rights reserved.
*
* 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_VECTOR_H_INCLUDED
#define TWOBLUECUBES_CATCH_MATCHERS_VECTOR_H_INCLUDED
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#include "catch_matchers.hpp"
namespace Catch {
namespace Matchers {
namespace Vector {
template<typename T>
struct ContainsElementMatcher : MatcherBase<std::vector<T>, T> {
ContainsElementMatcher(T const &comparator) : m_comparator( comparator) {}
bool match(std::vector<T> const &v) const override {
for (auto const& el : v) {
if (el == m_comparator) {
return true;
}
}
return false;
}
std::string describe() const override {
return "Contains: " + ::Catch::Detail::stringify( m_comparator );
}
T const& m_comparator;
};
template<typename T>
struct ContainsMatcher : MatcherBase<std::vector<T>, std::vector<T> > {
ContainsMatcher(std::vector<T> const &comparator) : m_comparator( comparator ) {}
bool match(std::vector<T> const &v) const override {
// !TBD: see note in EqualsMatcher
if (m_comparator.size() > v.size())
return false;
for (auto const& comparator : m_comparator) {
auto present = false;
for (const auto& el : v) {
if (el == comparator) {
present = true;
break;
}
}
if (!present) {
return false;
}
}
return true;
}
std::string describe() const override {
return "Contains: " + ::Catch::Detail::stringify( m_comparator );
}
std::vector<T> const& m_comparator;
};
template<typename T>
struct EqualsMatcher : MatcherBase<std::vector<T>, std::vector<T> > {
EqualsMatcher(std::vector<T> const &comparator) : m_comparator( comparator ) {}
bool match(std::vector<T> const &v) const override {
// !TBD: This currently works if all elements can be compared using !=
// - a more general approach would be via a compare template that defaults
// to using !=. but could be specialised for, e.g. std::vector<T> etc
// - then just call that directly
if (m_comparator.size() != v.size())
return false;
for (size_t i = 0; i < v.size(); ++i)
if (m_comparator[i] != v[i])
return false;
return true;
}
std::string describe() const override {
return "Equals: " + ::Catch::Detail::stringify( m_comparator );
}
std::vector<T> const& m_comparator;
};
} // namespace Vector
// The following functions create the actual matcher objects.
// This allows the types to be inferred
template<typename T>
Vector::ContainsMatcher<T> Contains( std::vector<T> const& comparator ) {
return Vector::ContainsMatcher<T>( comparator );
}
template<typename T>
Vector::ContainsElementMatcher<T> VectorContains( T const& comparator ) {
return Vector::ContainsElementMatcher<T>( comparator );
}
template<typename T>
Vector::EqualsMatcher<T> Equals( std::vector<T> const& comparator ) {
return Vector::EqualsMatcher<T>( comparator );
}
} // namespace Matchers
} // namespace Catch
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#endif // TWOBLUECUBES_CATCH_MATCHERS_VECTOR_H_INCLUDED