unit_test_utils.h

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#ifndef UNIT_TEST_UTILS__H
#define UNIT_TEST_UTILS__H
 
#define BOOST_NO_AUTO_PTR
 
#include <boost/test/unit_test.hpp>
#include <turtle/mock.hpp>
 
#include <qa_utils/wx_utils/wx_assert.h>
 
#include <cstdint>
#include <functional>
#include <optional>
#include <set>
#include <vector>
 
#include <wx/gdicmn.h>
#include <wx/string.h>
 
// C++20 deleted operator<<(ostream&, const wchar_t*) (P1423R3), which breaks wxString streaming
// via implicit wchar_t* conversion in Boost.Test's lazy_ostream (used by BOOST_TEST_CONTEXT,
// BOOST_TEST_MESSAGE, BOOST_CHECK_MESSAGE, and BOOST_FAIL).
inline std::ostream& operator<<( std::ostream& os, const wxString& aStr )
{
#if wxUSE_UNICODE
    os << aStr.ToUTF8().data();
#else
    os << aStr.c_str();
#endif
    return os;
}
 
 
template<class T>
struct PRINTABLE_OPT
{
    PRINTABLE_OPT( const std::optional<T>& aOpt ) : m_Opt( aOpt ){};
    PRINTABLE_OPT( const T& aVal ) : m_Opt( aVal ){};
 
    std::optional<T> m_Opt;
};
 

#define KI_CHECK_OPT_EQUAL( lhs, rhs )                                                            \
    BOOST_CHECK_EQUAL( PRINTABLE_OPT( lhs ), PRINTABLE_OPT( rhs ) )
 
 
template <class T>
inline std::ostream& operator<<( std::ostream& aOs, const PRINTABLE_OPT<T>& aOptional )
{
    if( aOptional.m_Opt.has_value() )
        aOs << *aOptional.m_Opt;
    else
        aOs << "nullopt";
 
    return aOs;
}
 
 
template <class L, class R>
inline bool operator==( const PRINTABLE_OPT<L>& aLhs, const PRINTABLE_OPT<R>& aRhs )
{
    if( !aLhs.m_Opt.has_value() && !aRhs.m_Opt.has_value() )
        return true; // both nullopt
 
    return aLhs.m_Opt.has_value() && aRhs.m_Opt.has_value() && *aLhs.m_Opt == *aRhs.m_Opt;
}
 
 
template <class L, class R>
inline bool operator!=( const PRINTABLE_OPT<L>& aLhs, const PRINTABLE_OPT<R>& aRhs )
{
    return !( aLhs == aRhs );
}
 
 
// boost_test_print_type has to be in the same namespace as the printed type
namespace std
{

template <typename T>
std::ostream& boost_test_print_type( std::ostream& os, std::vector<T> const& aVec )
{
    os << "std::vector size " << aVec.size() << " [";
 
    for( const auto& i : aVec )
    {
        os << "\n    " << i;
    }
 
    os << "]";
    return os;
}

template <typename K, typename V>
std::ostream& boost_test_print_type( std::ostream& os, std::map<K, V> const& aMap )
{
    os << "std::map size " << aMap.size() << " [";
 
    for( const auto& [key, value] : aMap )
    {
        os << "\n    " << key << " = " << value;
    }
 
    os << "]";
    return os;
}

template <typename K, typename V>
std::ostream& boost_test_print_type( std::ostream& os, std::pair<K, V> const& aPair )
{
    os << "[" << aPair.first << ", " << aPair.second << "]";
    return os;
}
 
} // namespace std
 
 
//-----------------------------------------------------------------------------+
// Boost.Test printing helpers for wx types / wide string literals
//-----------------------------------------------------------------------------+
namespace boost { namespace test_tools { namespace tt_detail {
 
template<>
struct print_log_value<wxString>
{
    void operator()( std::ostream& os, wxString const& v )
    {
#if wxUSE_UNICODE
        os << v.ToUTF8().data();
#else
        os << v;
#endif
    }
};
 
// Wide string literal arrays
template<std::size_t N>
struct print_log_value<wchar_t[ N ]>
{
    void operator()( std::ostream& os, const wchar_t (&ws)[ N ] )
    {
        wxString tmp( ws );
#if wxUSE_UNICODE
        os << tmp.ToUTF8().data();
#else
        os << tmp;
#endif
    }
};
 
}}} // namespace boost::test_tools::tt_detail
 

std::ostream& boost_test_print_type( std::ostream& os, wxPoint const& aVec );
 
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();
}
 

struct NAMED_CASE
{
    std::string m_CaseName;
 
    friend std::ostream& operator<<( std::ostream& os, const NAMED_CASE& aCase )
    {
        os << aCase.m_CaseName;
        return os;
    }
};
 

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

std::string GetEeschemaTestDataDir();
 
std::string GetTestDataRootDir();

std::vector<uint8_t> LoadBinaryData( const std::string& aFilePath, std::optional<size_t> aLoadBytes = std::nullopt );
 
void SetMockConfigDir();
 
} // namespace KI_TEST
 
#endif // UNIT_TEST_UTILS__H