parselink-old/tests/msgpack/unpacker/test_unpacker.h

58 lines
2.3 KiB
C++

//-----------------------------------------------------------------------------
// ___ __ _ _
// / _ \__ _ _ __ ___ ___ / /(_)_ __ | | __
// / /_)/ _` | '__/ __|/ _ \/ / | | '_ \| |/ /
// / ___/ (_| | | \__ \ __/ /__| | | | | <
// \/ \__,_|_| |___/\___\____/_|_| |_|_|\_\ .
//
//-----------------------------------------------------------------------------
// Author: Kurt Sassenrath
// Module: msgpack
//
// Unpacker tests, common code.
//
// Copyright (c) 2023 Kurt Sassenrath.
//
// License TBD.
//-----------------------------------------------------------------------------
#ifndef tests_msgpack_unpacker_25b118dd14e2b1b4
#define tests_msgpack_unpacker_25b118dd14e2b1b4
#include "parselink/msgpack/core/unpacker.h"
#include "test_utils.h"
// Helper template to check that a type is either equal to itself, or verify
// that it won't unpack correctly.
template <typename T, typename U>
constexpr bool unpack_type_check(msgpack::unpacker unpacker) noexcept {
auto wrong_type = tl::make_unexpected(msgpack::error::wrong_type);
auto compatible_type = std::same_as<T, U>
|| (std::is_unsigned_v<T> && std::is_unsigned_v<U>)
|| (std::is_signed_v<T> && std::is_signed_v<U>);
auto result = compatible_type || unpacker.unpack<U>() == wrong_type;
if (!result) {
fmt::print("Unpack_type_check failed: {}\n",
std::source_location::current().function_name());
}
return result;
}
// Validate the wrong types do not unpack correctly, or fail.
template <typename Expected, typename... OtherTypes>
constexpr bool try_unpacking_types(msgpack::unpacker unpacker) noexcept {
return ((unpack_type_check<Expected, OtherTypes>(unpacker)) && ...);
}
#define SUPPORTED_TYPES \
msgpack::nil, msgpack::invalid, bool, std::uint8_t, std::uint16_t, \
std::uint32_t, std::uint64_t, std::int8_t, std::int16_t, \
std::int32_t, std::int64_t, std::string_view
template <typename Expected>
constexpr bool type_check_unpacker(msgpack::unpacker unpacker) noexcept {
return try_unpacking_types<Expected, SUPPORTED_TYPES>(unpacker);
}
#endif // tests_msgpack_unpacker_25b118dd14e2b1b4