mirror of
https://github.com/fraillt/bitsery.git
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245 lines
8.8 KiB
C++
245 lines
8.8 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 all
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//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 <bitsery/ext/compact_value.h>
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#include <gmock/gmock.h>
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#include "serialization_test_utils.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 testing::Eq;
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using bitsery::ext::CompactValue;
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using bitsery::ext::CompactValueAsObject;
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using bitsery::EndiannessType;
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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 getValue(bool isPositive, size_t significantBits) {
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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> serializeAndGetDeserialized(TValue data) {
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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{buf.begin(), ser.adapter().writtenBytesCount()};
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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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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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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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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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public:
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using TestCase = T;
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};
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using AllValueSizesTestCases = ::testing::Types<
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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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>;
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TYPED_TEST_SUITE(SerializeExtensionCompactValueCorrectness, AllValueSizesTestCases,);
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TYPED_TEST(SerializeExtensionCompactValueCorrectness, TestDifferentSizeValues) {
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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, bool isPositiveNr, size_t significantBits, size_t resultBytes>
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struct SizeTC {
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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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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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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 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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>;
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TYPED_TEST_SUITE(SerializeExtensionCompactValueRequiredBytes, RequiredBytesTestCases,);
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TYPED_TEST(SerializeExtensionCompactValueRequiredBytes, Test) {
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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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A,B,C,D=54,E
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};
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enum class b8En: int64_t {
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A=-874987489,B,C=0,D,E=489748978, F,G
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};
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TEST(SerializeExtensionCompactValueEnum, TestEnums) {
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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, Eq(d1));
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EXPECT_THAT(serializeAndGetDeserialized<bitsery::DefaultConfig>(d2).first, Eq(d2));
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EXPECT_THAT(serializeAndGetDeserialized<bitsery::DefaultConfig>(d3).first, Eq(d3));
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}
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TEST(SerializeExtensionCompactValueAsObjectDeserializeOverflow, TestEnums) {
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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(), Eq(bitsery::ReaderError::InvalidData));
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}
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