unit_test_utils.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2018 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
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 */

#ifndef UNIT_TEST_UTILS__H
#define UNIT_TEST_UTILS__H

#include <boost/test/unit_test.hpp>

#include <unit_test_utils/wx_assert.h>

#include <functional>
#include <set>

#include <wx/gdicmn.h>
#if BOOST_VERSION >= 105900
#define HAVE_EXPECTED_FAILURES
#endif

#undef BOOST_TEST


#if BOOST_VERSION < 105900

/*
 * BOOST_TEST_INFO is not available before 1.59. It's not critical for
 * test pass/fail, it's just info, so just pass along to a logging
 * function.
 *
 * This can be removed when our minimum boost version is 1.59 or higher.
 */
#define BOOST_TEST_INFO( A ) BOOST_TEST_MESSAGE( A )

/*
 *
 * BOOST_TEST_CONTEXT provides scoped info, but again, only after 1.59.
 * Replacing with a call to BOOST_TEST_MESSAGE will work, and the
 * scoping will still work for newer boosts.
 *
 * This can be removed when our minimum boost version is 1.59 or higher.
 */
#define BOOST_TEST_CONTEXT( A ) BOOST_TEST_MESSAGE( A );

#endif

/*
 * Boost hides the configuration point for print_log_value in different
 * namespaces between < 1.59 and >= 1.59.
 *
 * The macros can be used to open and close the right level of namespacing
 * based on the version.
 *
 * We could just use a conditionally defined namespace alias, but that
 * doesn't work in GCC <7 (GCC bug #56480)
 *
 * From Boost 1.64, this should be done with boost_test_print_type,
 * and these defines can be removed once all logging functions use that.
 */
#if BOOST_VERSION >= 105900
#define BOOST_TEST_PRINT_NAMESPACE_OPEN \
    boost                               \
    {                                   \
    namespace test_tools                \
    {                                   \
    namespace tt_detail
#define BOOST_TEST_PRINT_NAMESPACE_CLOSE }}
#else
#define BOOST_TEST_PRINT_NAMESPACE_OPEN \
    boost                               \
    {                                   \
    namespace test_tools
#define BOOST_TEST_PRINT_NAMESPACE_CLOSE }
#endif

#if BOOST_VERSION < 106400

namespace BOOST_TEST_PRINT_NAMESPACE_OPEN
{
template <>
struct print_log_value<std::nullptr_t>
{
    inline void operator()( std::ostream& os, std::nullptr_t const& p )
    {
        os << "nullptr";
    }
};
}
BOOST_TEST_PRINT_NAMESPACE_CLOSE

#endif


namespace BOOST_TEST_PRINT_NAMESPACE_OPEN
{

template <typename T>
struct print_log_value<std::vector<T>>
{
    inline void operator()( std::ostream& os, std::vector<T> const& aVec )
    {
        os << "std::vector size " << aVec.size() << "[";

        for( const auto& i : aVec )
        {
            os << "\n    ";
            print_log_value<T>()( os, i );
        }

        os << "]";
    }
};

template <>
struct print_log_value<wxPoint>
{
    void operator()( std::ostream& os, wxPoint const& aVec );
};
}
BOOST_TEST_PRINT_NAMESPACE_CLOSE


namespace KI_TEST
{

template <typename EXP_CONT> using EXP_OBJ = typename EXP_CONT::value_type;
template <typename FOUND_CONT> using FOUND_OBJ = typename FOUND_CONT::value_type;

template <typename EXP_OBJ, typename FOUND_OBJ>
using MATCH_PRED = std::function<bool( const EXP_OBJ&, const FOUND_OBJ& )>;

template <typename EXP_CONT, typename FOUND_CONT, typename MATCH_PRED>
void CheckUnorderedMatches(
        const EXP_CONT& aExpected, const FOUND_CONT& aFound, MATCH_PRED aMatchPredicate )
{
    using EXP_OBJ = typename EXP_CONT::value_type;

    // set of object we've already found
    std::set<const EXP_OBJ*> matched;

    // fill the set of object that match
    for( const auto& found : aFound )
    {
        for( const auto& expected : aExpected )
        {
            if( aMatchPredicate( expected, found ) )
            {
                matched.insert( &expected );
                break;
            }
        }
    }

    // first check every expected object was "found"
    for( const EXP_OBJ& exp : aExpected )
    {
        BOOST_CHECK_MESSAGE( matched.count( &exp ) > 0, "Expected item was not found. Expected: \n"
                                                                << exp );
    }

    // check every "found" object was expected
    for( const EXP_OBJ* found : matched )
    {
        const bool was_expected =
                std::find_if( aExpected.begin(), aExpected.end(),
                        [found]( const EXP_OBJ& aObj ) { return &aObj == found; } )
                != aExpected.end();

        BOOST_CHECK_MESSAGE( was_expected, "Found item was not expected. Found: \n" << *found );
    }
}


template <typename T>
bool CollectionHasNoDuplicates( const T& aCollection )
{
    T sorted = aCollection;
    std::sort( sorted.begin(), sorted.end() );

    return std::adjacent_find( sorted.begin(), sorted.end() ) == sorted.end();
}


#ifdef DEBUG
#define CHECK_WX_ASSERT( STATEMENT ) BOOST_CHECK_THROW( STATEMENT, KI_TEST::WX_ASSERT_ERROR );
#else
#define CHECK_WX_ASSERT( STATEMENT )
#endif

} // namespace KI_TEST

#endif // UNIT_TEST_UTILS__H