typegettertest.cpp

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE or copy at https://www.boost.org/LICENSE_1_0.txt)
 **********************************************************************/
 
#include "typegettertest.h"
#include <type_traits>
#include <QtTest>
#include <typegetter.h>
 
QTEST_MAIN (LC::Util::TypeGetterTest)
 
namespace LC
{
namespace Util
{
    namespace
    {
        template<typename T>
        void PrintType ()
        {
            qDebug () << Q_FUNC_INFO;
        }
    }
 
    void TypeGetterTest::testArgType ()
    {
        const auto f = [] (int, const double) {};
        static_assert (std::is_same_v<ArgType_t<decltype (f), 0>, int>);
        static_assert (std::is_same_v<ArgType_t<decltype (f), 1>, double>);
    }
 
    void TypeGetterTest::testArgTypeRef ()
    {
        const auto f = [] (int&, const double&) {};
        static_assert (std::is_same_v<ArgType_t<decltype (f), 0>, int&>);
        static_assert (std::is_same_v<ArgType_t<decltype (f), 1>, const double&>);
    }
 
    void TypeGetterTest::testArgTypeRvalueRef ()
    {
        const auto f = [] (int&&, const double&&) {};
        static_assert (std::is_same_v<ArgType_t<decltype (f), 0>, int&&>);
        static_assert (std::is_same_v<ArgType_t<decltype (f), 1>, const double&&>);
    }
 
    void TypeGetterTest::testRetType ()
    {
        const auto f = [] (int val, const double) { return val; };
        static_assert (std::is_same_v<RetType_t<decltype (f)>, int>);
    }
 
    void TypeGetterTest::testRetTypeVoid ()
    {
        const auto f = [] {};
        static_assert (std::is_same_v<RetType_t<decltype (f)>, void>);
    }
 
    void TypeGetterTest::testRetTypeRef ()
    {
        int x;
        const auto f = [&x] (int, const double) -> int& { return x; };
        static_assert (std::is_same_v<RetType_t<decltype (f)>, int&>);
    }
 
    void TypeGetterTest::testRetTypeConstRef ()
    {
        int x;
        const auto f = [&x] (int, const double) -> const int& { return x; };
        static_assert (std::is_same_v<RetType_t<decltype (f)>, const int&>);
    }
}
}