boost/libs/type_erasure/test/test_equal.cpp

// Boost.TypeErasure library
//
// Copyright 2011 Steven Watanabe
//
// 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)
//
// $Id$

#include <boost/type_erasure/any.hpp>
#include <boost/type_erasure/builtin.hpp>
#include <boost/type_erasure/operators.hpp>
#include <boost/type_erasure/any_cast.hpp>
#include <boost/type_erasure/tuple.hpp>
#include <boost/mpl/vector.hpp>

#define BOOST_TEST_MAIN
#include <boost/test/unit_test.hpp>

using namespace boost::type_erasure;

BOOST_AUTO_TEST_CASE(test_basic)
{
    typedef boost::mpl::vector<copy_constructible<>, equality_comparable<> > test_concept;
    any<test_concept> x(1);
    any<test_concept> y(2);

    BOOST_CHECK(!(x == y));
    BOOST_CHECK((x == x));
    BOOST_CHECK((x != y));
    BOOST_CHECK(!(x != x));
}

BOOST_AUTO_TEST_CASE(test_mixed_unequal)
{
    typedef boost::mpl::vector<copy_constructible<_a>, copy_constructible<_b>, equality_comparable<_a, _b> > test_concept;
    tuple<test_concept, _a, _b> t(1, 2.0);
    any<test_concept, _a> x(get<0>(t));
    any<test_concept, _b> y(get<1>(t));

    BOOST_CHECK(!(x == y));
    BOOST_CHECK((x != y));
}

BOOST_AUTO_TEST_CASE(test_mixed_equal)
{
    typedef boost::mpl::vector<copy_constructible<_a>, copy_constructible<_b>, equality_comparable<_a, _b> > test_concept;
    tuple<test_concept, _a, _b> t(1, 1);
    any<test_concept, _a> x(get<0>(t));
    any<test_concept, _b> y(get<1>(t));

    BOOST_CHECK((x == y));
    BOOST_CHECK(!(x != y));
}

BOOST_AUTO_TEST_CASE(test_fixed_lhs_unequal)
{
    typedef boost::mpl::vector<copy_constructible<>, equality_comparable<int, _self> > test_concept;
    int x(1);
    any<test_concept> y(2.0);

    BOOST_CHECK(!(x == y));
    BOOST_CHECK((x != y));
}

BOOST_AUTO_TEST_CASE(test_fixed_lhs_equal)
{
    typedef boost::mpl::vector<copy_constructible<>, equality_comparable<int, _self> > test_concept;
    int x(1);
    any<test_concept> y(1);

    BOOST_CHECK((x == y));
    BOOST_CHECK(!(x != y));
}

BOOST_AUTO_TEST_CASE(test_fixed_rhs_unequal)
{
    typedef boost::mpl::vector<copy_constructible<>, equality_comparable<_self, int> > test_concept;
    any<test_concept> x(2.0);
    int y(1);

    BOOST_CHECK(!(x == y));
    BOOST_CHECK((x != y));
}

BOOST_AUTO_TEST_CASE(test_fixed_rhs_equal)
{
    typedef boost::mpl::vector<copy_constructible<>, equality_comparable<_self, int> > test_concept;
    any<test_concept> x(1);
    int y(1);

    BOOST_CHECK((x == y));
    BOOST_CHECK(!(x != y));
}

BOOST_AUTO_TEST_CASE(test_relaxed)
{
    typedef boost::mpl::vector<copy_constructible<>, equality_comparable<>, relaxed> test_concept;
    any<test_concept> x(1);
    any<test_concept> y(2);
    any<test_concept> z(std::string("test"));

    BOOST_CHECK(!(x == y));
    BOOST_CHECK((x == x));
    BOOST_CHECK((x != y));
    BOOST_CHECK(!(x != x));
    
    BOOST_CHECK(!(x == z));
    BOOST_CHECK((x != z));
}

BOOST_AUTO_TEST_CASE(test_overload)
{
    typedef boost::mpl::vector<
        copy_constructible<_a>,
        copy_constructible<_b>,
        equality_comparable<_a>,
        equality_comparable<_a, int>,
        equality_comparable<int, _a>,
        equality_comparable<_b>,
        equality_comparable<_b, int>,
        equality_comparable<int, _b>,
        equality_comparable<_a, _b>
    > test_concept;

    tuple<test_concept, _a, _b> t(1, 2.0);
    any<test_concept, _a> x(get<0>(t));
    any<test_concept, _b> y(get<1>(t));

    BOOST_CHECK(x == x);
    BOOST_CHECK(!(x != x));
    BOOST_CHECK(x == 1);
    BOOST_CHECK(x != 2);
    BOOST_CHECK(1 == x);
    BOOST_CHECK(2 != x);

    BOOST_CHECK(y == y);
    BOOST_CHECK(!(y != y));
    BOOST_CHECK(y == 2);
    BOOST_CHECK(y != 3);
    BOOST_CHECK(2 == y);
    BOOST_CHECK(3 != y);
    
    BOOST_CHECK(!(x == y));
    BOOST_CHECK(x != y);
}