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/**
* (C) 2016 - 2021 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
* (C) 2016 - 2024 Stanislav Angelovic <stanislav.angelovic@protonmail.com>
*
* @file TypeTraits_test.cpp
*
* Created on: Nov 27, 2016
* Project: sdbus-c++
* Description: High-level D-Bus IPC C++ library based on sd-bus
*
* This file is part of sdbus-c++.
*
* sdbus-c++ is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 2.1 of the License, or
* (at your option) any later version.
*
* sdbus-c++ 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with sdbus-c++. If not, see <http://www.gnu.org/licenses/>.
*/
#include <sdbus-c++/TypeTraits.h>
#include <sdbus-c++/Types.h>
#include <gtest/gtest.h>
#include <gmock/gmock.h>
#include <cstdint>
#include <type_traits>
using ::testing::Eq;
namespace
{
// ---
// FIXTURE DEFINITION FOR TYPED TESTS
// ----
template <typename _T>
class Type2DBusTypeSignatureConversion
: public ::testing::Test
{
protected:
const std::string dbusTypeSignature_{getDBusTypeSignature()};
private:
static std::string getDBusTypeSignature();
};
enum class SomeEnumClass : uint8_t
{
A, B, C
};
enum struct SomeEnumStruct : int64_t
{
A, B, C
};
enum SomeClassicEnum
{
A, B, C
};
#define TYPE(...) \
template <> \
std::string Type2DBusTypeSignatureConversion<__VA_ARGS__>::getDBusTypeSignature() \
/**/
#define HAS_DBUS_TYPE_SIGNATURE(_SIG) \
{ \
return (_SIG); \
} \
/**/
TYPE(bool)HAS_DBUS_TYPE_SIGNATURE("b")
TYPE(uint8_t)HAS_DBUS_TYPE_SIGNATURE("y")
TYPE(int16_t)HAS_DBUS_TYPE_SIGNATURE("n")
TYPE(uint16_t)HAS_DBUS_TYPE_SIGNATURE("q")
TYPE(int32_t)HAS_DBUS_TYPE_SIGNATURE("i")
TYPE(uint32_t)HAS_DBUS_TYPE_SIGNATURE("u")
TYPE(int64_t)HAS_DBUS_TYPE_SIGNATURE("x")
TYPE(uint64_t)HAS_DBUS_TYPE_SIGNATURE("t")
TYPE(double)HAS_DBUS_TYPE_SIGNATURE("d")
TYPE(const char*)HAS_DBUS_TYPE_SIGNATURE("s")
TYPE(std::string)HAS_DBUS_TYPE_SIGNATURE("s")
TYPE(std::string_view)HAS_DBUS_TYPE_SIGNATURE("s")
TYPE(sdbus::BusName)HAS_DBUS_TYPE_SIGNATURE("s")
TYPE(sdbus::InterfaceName)HAS_DBUS_TYPE_SIGNATURE("s")
TYPE(sdbus::MemberName)HAS_DBUS_TYPE_SIGNATURE("s")
TYPE(sdbus::ObjectPath)HAS_DBUS_TYPE_SIGNATURE("o")
TYPE(sdbus::Signature)HAS_DBUS_TYPE_SIGNATURE("g")
TYPE(sdbus::Variant)HAS_DBUS_TYPE_SIGNATURE("v")
TYPE(std::variant<int16_t, std::string>)HAS_DBUS_TYPE_SIGNATURE("v")
TYPE(sdbus::UnixFd)HAS_DBUS_TYPE_SIGNATURE("h")
TYPE(sdbus::Struct<bool>)HAS_DBUS_TYPE_SIGNATURE("(b)")
TYPE(sdbus::Struct<uint16_t, double, std::string, sdbus::Variant>)HAS_DBUS_TYPE_SIGNATURE("(qdsv)")
TYPE(std::vector<int16_t>)HAS_DBUS_TYPE_SIGNATURE("an")
TYPE(std::array<int16_t, 3>)HAS_DBUS_TYPE_SIGNATURE("an")
#ifdef __cpp_lib_span
TYPE(std::span<int16_t>)HAS_DBUS_TYPE_SIGNATURE("an")
#endif
TYPE(SomeEnumClass)HAS_DBUS_TYPE_SIGNATURE("y")
TYPE(const SomeEnumClass)HAS_DBUS_TYPE_SIGNATURE("y")
TYPE(volatile SomeEnumClass)HAS_DBUS_TYPE_SIGNATURE("y")
TYPE(const volatile SomeEnumClass)HAS_DBUS_TYPE_SIGNATURE("y")
TYPE(SomeEnumStruct)HAS_DBUS_TYPE_SIGNATURE("x")
TYPE(SomeClassicEnum)HAS_DBUS_TYPE_SIGNATURE("u")
TYPE(std::map<int32_t, int64_t>)HAS_DBUS_TYPE_SIGNATURE("a{ix}")
TYPE(std::unordered_map<int32_t, int64_t>)HAS_DBUS_TYPE_SIGNATURE("a{ix}")
using ComplexType = std::map<
uint64_t,
sdbus::Struct<
std::map<
uint8_t,
std::vector<
sdbus::Struct<
sdbus::ObjectPath,
std::array<int16_t, 3>,
bool,
sdbus::Variant,
std::unordered_map<int, std::string>
>
>
>,
sdbus::Signature,
sdbus::UnixFd,
const char*,
std::string_view
>
>;
TYPE(ComplexType)HAS_DBUS_TYPE_SIGNATURE("a{t(a{ya(oanbva{is})}ghss)}")
typedef ::testing::Types< bool
, uint8_t
, int16_t
, uint16_t
, int32_t
, uint32_t
, int64_t
, uint64_t
, double
, const char*
, std::string
, std::string_view
, sdbus::BusName
, sdbus::InterfaceName
, sdbus::MemberName
, sdbus::ObjectPath
, sdbus::Signature
, sdbus::Variant
, std::variant<int16_t, std::string>
, sdbus::UnixFd
, sdbus::Struct<bool>
, sdbus::Struct<uint16_t, double, std::string, sdbus::Variant>
, std::vector<int16_t>
, std::array<int16_t, 3>
#ifdef __cpp_lib_span
, std::span<int16_t>
#endif
, SomeEnumClass
, const SomeEnumClass
, volatile SomeEnumClass
, const volatile SomeEnumClass
, SomeEnumStruct
, SomeClassicEnum
, std::map<int32_t, int64_t>
, std::unordered_map<int32_t, int64_t>
, ComplexType
> DBusSupportedTypes;
TYPED_TEST_SUITE(Type2DBusTypeSignatureConversion, DBusSupportedTypes);
}
/*-------------------------------------*/
/* -- TEST CASES -- */
/*-------------------------------------*/
TYPED_TEST(Type2DBusTypeSignatureConversion, ConvertsTypeToProperDBusSignature)
{
constexpr auto signature = sdbus::as_null_terminated(sdbus::signature_of_v<TypeParam>);
ASSERT_THAT(signature.data(), Eq(this->dbusTypeSignature_));
}
TEST(FreeFunctionTypeTraits, DetectsTraitsOfTrivialSignatureFunction)
{
void f();
using Fnc = decltype(f);
static_assert(!sdbus::is_async_method_v<Fnc>, "Free function incorrectly detected as async method");
static_assert(std::is_same<sdbus::function_arguments_t<Fnc>, std::tuple<>>::value, "Incorrectly detected free function parameters");
static_assert(std::is_same<sdbus::tuple_of_function_input_arg_types_t<Fnc>, std::tuple<>>::value, "Incorrectly detected tuple of free function parameters");
static_assert(std::is_same<sdbus::tuple_of_function_output_arg_types_t<Fnc>, void>::value, "Incorrectly detected tuple of free function return types");
static_assert(sdbus::function_argument_count_v<Fnc> == 0, "Incorrectly detected free function parameter count");
static_assert(std::is_void<sdbus::function_result_t<Fnc>>::value, "Incorrectly detected free function return type");
}
TEST(FreeFunctionTypeTraits, DetectsTraitsOfNontrivialSignatureFunction)
{
std::tuple<char, int> f(double&, const char*, int);
using Fnc = decltype(f);
static_assert(!sdbus::is_async_method_v<Fnc>, "Free function incorrectly detected as async method");
static_assert(std::is_same<sdbus::function_arguments_t<Fnc>, std::tuple<double&, const char*, int>>::value, "Incorrectly detected free function parameters");
static_assert(std::is_same<sdbus::tuple_of_function_input_arg_types_t<Fnc>, std::tuple<double, const char*, int>>::value, "Incorrectly detected tuple of free function parameters");
static_assert(std::is_same<sdbus::tuple_of_function_output_arg_types_t<Fnc>, std::tuple<char, int>>::value, "Incorrectly detected tuple of free function return types");
static_assert(sdbus::function_argument_count_v<Fnc> == 3, "Incorrectly detected free function parameter count");
static_assert(std::is_same<sdbus::function_result_t<Fnc>, std::tuple<char, int>>::value, "Incorrectly detected free function return type");
}
TEST(FreeFunctionTypeTraits, DetectsTraitsOfAsyncFunction)
{
void f(sdbus::Result<char, int>, double&, const char*, int);
using Fnc = decltype(f);
static_assert(sdbus::is_async_method_v<Fnc>, "Free async function incorrectly detected as sync method");
static_assert(std::is_same<sdbus::function_arguments_t<Fnc>, std::tuple<double&, const char*, int>>::value, "Incorrectly detected free function parameters");
static_assert(std::is_same<sdbus::tuple_of_function_input_arg_types_t<Fnc>, std::tuple<double, const char*, int>>::value, "Incorrectly detected tuple of free function parameters");
static_assert(std::is_same<sdbus::tuple_of_function_output_arg_types_t<Fnc>, std::tuple<char, int>>::value, "Incorrectly detected tuple of free function return types");
static_assert(sdbus::function_argument_count_v<Fnc> == 3, "Incorrectly detected free function parameter count");
static_assert(std::is_same<sdbus::function_result_t<Fnc>, std::tuple<char, int>>::value, "Incorrectly detected free function return type");
}
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