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// Copyright Joakim Karlsson & Kim Gräsman 2010-2012.
// 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 IGLOO_CONTAINSCONSTRAINT_H
#define IGLOO_CONTAINSCONSTRAINT_H
#include <algorithm>
#include "./expressions/expression.h"
namespace snowhouse {
template <typename ContainerType>
struct find_in_container_traits
{
template <typename ExpectedType>
static bool find(const ContainerType& container, const ExpectedType& expected)
{
return std::find(container.begin(), container.end(), expected) != container.end();
}
};
template <typename KeyType, typename ValueType>
struct find_in_container_traits<std::map<KeyType, ValueType> >
{
template <typename ExpectedType>
static bool find(const std::map<KeyType, ValueType>& container, const ExpectedType& expected)
{
return container.find(expected) != container.end();
}
};
template <typename ExpectedType>
struct ContainsConstraint : Expression< ContainsConstraint<ExpectedType> >
{
ContainsConstraint(const ExpectedType& expected)
: m_expected(expected) {}
template <typename ActualType>
bool operator()(const ActualType& actual) const
{
return find_in_container_traits<ActualType>::find(actual, m_expected);
}
bool operator()(const std::string& actual) const
{
return actual.find(m_expected) != actual.npos;
}
ExpectedType m_expected;
};
template< typename ExpectedType >
inline ContainsConstraint<ExpectedType> Contains(const ExpectedType& expected)
{
return ContainsConstraint<ExpectedType>(expected);
}
inline ContainsConstraint<std::string> Contains(const char* expected)
{
return ContainsConstraint<std::string>(expected);
}
template< typename ExpectedType >
struct Stringizer< ContainsConstraint< ExpectedType > >
{
static std::string ToString(const ContainsConstraint<ExpectedType>& constraint)
{
std::ostringstream builder;
builder << "contains " << snowhouse::Stringize(constraint.m_expected);
return builder.str();
}
};
}
#endif
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