mirror of
https://github.com/fraillt/bitsery.git
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277 lines
8.9 KiB
C++
277 lines
8.9 KiB
C++
// MIT License
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//
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// Copyright (c) 2017 Mindaugas Vinkelis
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#include "serialization_test_utils.h"
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#include <bitsery/ext/compact_value.h>
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#include <gmock/gmock.h>
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#include <bitsery/traits/array.h>
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#include <bitset>
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#include <chrono>
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using bitsery::EndiannessType;
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using bitsery::ext::CompactValue;
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using bitsery::ext::CompactValueAsObject;
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using testing::Eq;
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// helper function, that gets value filled with specified number of bits
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template<typename TValue>
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TValue
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getValue(bool isPositive, size_t significantBits)
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{
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TValue v = isPositive ? 0 : static_cast<TValue>(-1);
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if (significantBits == 0)
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return v;
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using TUnsigned = typename std::make_unsigned<TValue>::type;
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TUnsigned mask = {};
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mask = static_cast<TUnsigned>(~mask); // invert shiftByBits
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auto shiftBy = bitsery::details::BitsSize<TValue>::value - significantBits;
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mask = static_cast<TUnsigned>(mask >> shiftBy);
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// cast to unsigned when applying mask
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return v ^ static_cast<TValue>(mask);
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}
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// helper function, that serialize and return deserialized value
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template<typename TConfig, typename TValue>
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std::pair<TValue, size_t>
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serializeAndGetDeserialized(TValue data)
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{
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Buffer buf{};
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bitsery::Serializer<bitsery::OutputBufferAdapter<Buffer, TConfig>> ser{ buf };
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ser.template ext<sizeof(TValue)>(data, CompactValue{});
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bitsery::Deserializer<bitsery::InputBufferAdapter<Buffer, TConfig>> des{
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buf.begin(), ser.adapter().writtenBytesCount()
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};
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TValue res;
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des.template ext<sizeof(TValue)>(res, CompactValue{});
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return { res, ser.adapter().writtenBytesCount() };
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}
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struct LittleEndianConfig
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{
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static constexpr EndiannessType Endianness = EndiannessType::LittleEndian;
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static constexpr bool CheckDataErrors = true;
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static constexpr bool CheckAdapterErrors = true;
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};
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struct BigEndianConfig
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{
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static constexpr EndiannessType Endianness = EndiannessType::BigEndian;
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static constexpr bool CheckDataErrors = true;
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static constexpr bool CheckAdapterErrors = true;
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};
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template<typename TValue, bool isPositiveNr, typename TConfig>
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struct TC
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{
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static_assert(isPositiveNr || std::is_signed<TValue>::value, "");
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using Value = TValue;
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using Config = TConfig;
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bool isPositive = isPositiveNr;
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};
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template<typename T>
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class SerializeExtensionCompactValueCorrectness : public testing::Test
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{
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public:
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using TestCase = T;
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};
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using AllValueSizesTestCases =
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::testing::Types<TC<uint8_t, true, LittleEndianConfig>,
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TC<uint16_t, true, LittleEndianConfig>,
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TC<uint32_t, true, LittleEndianConfig>,
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TC<uint64_t, true, LittleEndianConfig>,
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TC<int8_t, true, LittleEndianConfig>,
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TC<int16_t, true, LittleEndianConfig>,
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TC<int32_t, true, LittleEndianConfig>,
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TC<int64_t, true, LittleEndianConfig>,
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TC<int8_t, false, LittleEndianConfig>,
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TC<int16_t, false, LittleEndianConfig>,
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TC<int32_t, false, LittleEndianConfig>,
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TC<int64_t, false, LittleEndianConfig>,
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TC<uint8_t, true, BigEndianConfig>,
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TC<uint16_t, true, BigEndianConfig>,
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TC<uint32_t, true, BigEndianConfig>,
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TC<uint64_t, true, BigEndianConfig>,
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TC<int8_t, true, BigEndianConfig>,
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TC<int16_t, true, BigEndianConfig>,
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TC<int32_t, true, BigEndianConfig>,
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TC<int64_t, true, BigEndianConfig>,
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TC<int8_t, false, BigEndianConfig>,
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TC<int16_t, false, BigEndianConfig>,
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TC<int32_t, false, BigEndianConfig>,
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TC<int64_t, false, BigEndianConfig>>;
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TYPED_TEST_SUITE(SerializeExtensionCompactValueCorrectness,
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AllValueSizesTestCases, );
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TYPED_TEST(SerializeExtensionCompactValueCorrectness, TestDifferentSizeValues)
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{
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using TCase = typename TestFixture::TestCase;
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using TValue = typename TCase::Value;
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TCase tc{};
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for (auto i = 0u; i < bitsery::details::BitsSize<TValue>::value + 1; ++i) {
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auto data = getValue<TValue>(tc.isPositive, i);
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auto res = serializeAndGetDeserialized<typename TCase::Config>(data);
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EXPECT_THAT(res.first, Eq(data));
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}
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}
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// this stucture will contain test data and result, as type paramters
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template<typename TValue,
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bool isPositiveNr,
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size_t significantBits,
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size_t resultBytes>
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struct SizeTC
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{
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static_assert(isPositiveNr || std::is_signed<TValue>::value, "");
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static_assert(bitsery::details::BitsSize<TValue>::value >= significantBits,
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"");
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using Value = TValue;
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bool isPositive = isPositiveNr;
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size_t fillBits = significantBits;
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size_t bytesCount = resultBytes;
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};
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template<typename T>
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class SerializeExtensionCompactValueRequiredBytes : public testing::Test
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{
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public:
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using TestCase = T;
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};
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using RequiredBytesTestCases = ::testing::Types<
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// 1 byte always writes to 1 byte
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SizeTC<uint8_t, true, 0, 1>,
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SizeTC<uint8_t, true, 8, 1>,
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SizeTC<int8_t, false, 0, 1>,
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SizeTC<int8_t, true, 8, 1>,
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// 2 byte, +1 byte after 15 significant bits
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SizeTC<uint16_t, true, 7, 1>,
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SizeTC<uint16_t, true, 8, 2>,
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SizeTC<uint16_t, true, 14, 2>,
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SizeTC<uint16_t, true, 15, 3>,
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// 2 byte, +1 byte after 15-1 significant bits (1 bit for sign)
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SizeTC<int16_t, true, 6, 1>,
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SizeTC<int16_t, false, 7, 2>,
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SizeTC<int16_t, true, 13, 2>,
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SizeTC<int16_t, false, 14, 3>,
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// 4 byte, +1 byte after 29 significant bits
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SizeTC<uint32_t, true, 14, 2>,
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SizeTC<uint32_t, true, 21, 3>,
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SizeTC<uint32_t, true, 28, 4>,
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SizeTC<uint32_t, true, 29, 5>,
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SizeTC<uint32_t, true, 32, 5>,
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// 4 byte
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SizeTC<int32_t, true, 13, 2>,
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SizeTC<int32_t, false, 20, 3>,
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SizeTC<int32_t, true, 27, 4>,
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SizeTC<int32_t, false, 28, 5>,
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SizeTC<int32_t, true, 31, 5>,
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// 8 byte, +1 byte after 57 significant bits, or +2 byte when all bits are
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// significant
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SizeTC<uint64_t, true, 28, 4>,
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SizeTC<uint64_t, true, 35, 5>,
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SizeTC<uint64_t, true, 42, 6>,
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SizeTC<uint64_t, true, 49, 7>,
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SizeTC<uint64_t, true, 56, 8>,
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SizeTC<uint64_t, true, 57, 9>,
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SizeTC<uint64_t, true, 63, 9>,
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SizeTC<uint64_t, true, 64, 10>,
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// 8 byte,
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SizeTC<int64_t, true, 27, 4>,
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SizeTC<int64_t, false, 34, 5>,
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SizeTC<int64_t, true, 41, 6>,
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SizeTC<int64_t, false, 48, 7>,
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SizeTC<int64_t, true, 55, 8>,
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SizeTC<int64_t, false, 56, 9>,
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SizeTC<int64_t, true, 62, 9>,
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SizeTC<int64_t, false, 63, 10>>;
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TYPED_TEST_SUITE(SerializeExtensionCompactValueRequiredBytes,
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RequiredBytesTestCases, );
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TYPED_TEST(SerializeExtensionCompactValueRequiredBytes, Test)
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{
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using TCase = typename TestFixture::TestCase;
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using TValue = typename TCase::Value;
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TCase tc{};
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TValue data = getValue<TValue>(tc.isPositive, tc.fillBits);
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auto res = serializeAndGetDeserialized<bitsery::DefaultConfig>(data);
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EXPECT_THAT(res.first, Eq(data));
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EXPECT_THAT(res.second, tc.bytesCount);
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}
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enum b1En : uint8_t
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{
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A,
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B,
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C,
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D = 54,
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E
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};
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enum class b8En : int64_t
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{
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A = -874987489,
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B,
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C = 0,
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D,
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E = 489748978,
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F,
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G
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};
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TEST(SerializeExtensionCompactValueEnum, TestEnums)
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{
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auto d1 = b1En::E;
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auto d2 = b8En::B;
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auto d3 = b8En::F;
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EXPECT_THAT(serializeAndGetDeserialized<bitsery::DefaultConfig>(d1).first,
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Eq(d1));
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EXPECT_THAT(serializeAndGetDeserialized<bitsery::DefaultConfig>(d2).first,
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Eq(d2));
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EXPECT_THAT(serializeAndGetDeserialized<bitsery::DefaultConfig>(d3).first,
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Eq(d3));
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}
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TEST(SerializeExtensionCompactValueAsObjectDeserializeOverflow, TestEnums)
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{
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SerializationContext ctx;
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auto data = getValue<uint32_t>(true, 17);
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uint16_t res{};
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ctx.createSerializer().ext(data, CompactValueAsObject{});
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ctx.createDeserializer().ext(res, CompactValueAsObject{});
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EXPECT_THAT(data, ::testing::Ne(res));
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EXPECT_THAT(ctx.des->adapter().error(),
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Eq(bitsery::ReaderError::InvalidData));
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}
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