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serialize_tests.cpp
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serialize_tests.cpp
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// Copyright (c) 2012-2021 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <hash.h>
#include <serialize.h>
#include <streams.h>
#include <test/util/setup_common.h>
#include <util/strencodings.h>
#include <stdint.h>
#include <boost/test/unit_test.hpp>
BOOST_FIXTURE_TEST_SUITE(serialize_tests, BasicTestingSetup)
class CSerializeMethodsTestSingle
{
protected:
int intval;
bool boolval;
std::string stringval;
char charstrval[16];
CTransactionRef txval;
public:
CSerializeMethodsTestSingle() = default;
CSerializeMethodsTestSingle(int intvalin, bool boolvalin, std::string stringvalin, const uint8_t* charstrvalin, const CTransactionRef& txvalin) : intval(intvalin), boolval(boolvalin), stringval(std::move(stringvalin)), txval(txvalin)
{
memcpy(charstrval, charstrvalin, sizeof(charstrval));
}
SERIALIZE_METHODS(CSerializeMethodsTestSingle, obj)
{
READWRITE(obj.intval);
READWRITE(obj.boolval);
READWRITE(obj.stringval);
READWRITE(obj.charstrval);
READWRITE(obj.txval);
}
bool operator==(const CSerializeMethodsTestSingle& rhs) const
{
return intval == rhs.intval &&
boolval == rhs.boolval &&
stringval == rhs.stringval &&
strcmp(charstrval, rhs.charstrval) == 0 &&
*txval == *rhs.txval;
}
};
class CSerializeMethodsTestMany : public CSerializeMethodsTestSingle
{
public:
using CSerializeMethodsTestSingle::CSerializeMethodsTestSingle;
SERIALIZE_METHODS(CSerializeMethodsTestMany, obj)
{
READWRITE(obj.intval, obj.boolval, obj.stringval, obj.charstrval, obj.txval);
}
};
BOOST_AUTO_TEST_CASE(sizes)
{
BOOST_CHECK_EQUAL(sizeof(unsigned char), GetSerializeSize((unsigned char)0, 0));
BOOST_CHECK_EQUAL(sizeof(int8_t), GetSerializeSize(int8_t(0), 0));
BOOST_CHECK_EQUAL(sizeof(uint8_t), GetSerializeSize(uint8_t(0), 0));
BOOST_CHECK_EQUAL(sizeof(int16_t), GetSerializeSize(int16_t(0), 0));
BOOST_CHECK_EQUAL(sizeof(uint16_t), GetSerializeSize(uint16_t(0), 0));
BOOST_CHECK_EQUAL(sizeof(int32_t), GetSerializeSize(int32_t(0), 0));
BOOST_CHECK_EQUAL(sizeof(uint32_t), GetSerializeSize(uint32_t(0), 0));
BOOST_CHECK_EQUAL(sizeof(int64_t), GetSerializeSize(int64_t(0), 0));
BOOST_CHECK_EQUAL(sizeof(uint64_t), GetSerializeSize(uint64_t(0), 0));
// Bool is serialized as uint8_t
BOOST_CHECK_EQUAL(sizeof(uint8_t), GetSerializeSize(bool(0), 0));
// Sanity-check GetSerializeSize and c++ type matching
BOOST_CHECK_EQUAL(GetSerializeSize((unsigned char)0, 0), 1U);
BOOST_CHECK_EQUAL(GetSerializeSize(int8_t(0), 0), 1U);
BOOST_CHECK_EQUAL(GetSerializeSize(uint8_t(0), 0), 1U);
BOOST_CHECK_EQUAL(GetSerializeSize(int16_t(0), 0), 2U);
BOOST_CHECK_EQUAL(GetSerializeSize(uint16_t(0), 0), 2U);
BOOST_CHECK_EQUAL(GetSerializeSize(int32_t(0), 0), 4U);
BOOST_CHECK_EQUAL(GetSerializeSize(uint32_t(0), 0), 4U);
BOOST_CHECK_EQUAL(GetSerializeSize(int64_t(0), 0), 8U);
BOOST_CHECK_EQUAL(GetSerializeSize(uint64_t(0), 0), 8U);
BOOST_CHECK_EQUAL(GetSerializeSize(bool(0), 0), 1U);
}
BOOST_AUTO_TEST_CASE(varints)
{
// encode
CDataStream ss(SER_DISK, 0);
CDataStream::size_type size = 0;
for (int i = 0; i < 100000; i++) {
ss << VARINT_MODE(i, VarIntMode::NONNEGATIVE_SIGNED);
size += ::GetSerializeSize(VARINT_MODE(i, VarIntMode::NONNEGATIVE_SIGNED), 0);
BOOST_CHECK(size == ss.size());
}
for (uint64_t i = 0; i < 100000000000ULL; i += 999999937) {
ss << VARINT(i);
size += ::GetSerializeSize(VARINT(i), 0);
BOOST_CHECK(size == ss.size());
}
// decode
for (int i = 0; i < 100000; i++) {
int j = -1;
ss >> VARINT_MODE(j, VarIntMode::NONNEGATIVE_SIGNED);
BOOST_CHECK_MESSAGE(i == j, "decoded:" << j << " expected:" << i);
}
for (uint64_t i = 0; i < 100000000000ULL; i += 999999937) {
uint64_t j = std::numeric_limits<uint64_t>::max();
ss >> VARINT(j);
BOOST_CHECK_MESSAGE(i == j, "decoded:" << j << " expected:" << i);
}
}
BOOST_AUTO_TEST_CASE(varints_bitpatterns)
{
CDataStream ss(SER_DISK, 0);
ss << VARINT_MODE(0, VarIntMode::NONNEGATIVE_SIGNED); BOOST_CHECK_EQUAL(HexStr(ss), "00"); ss.clear();
ss << VARINT_MODE(0x7f, VarIntMode::NONNEGATIVE_SIGNED); BOOST_CHECK_EQUAL(HexStr(ss), "7f"); ss.clear();
ss << VARINT_MODE((int8_t)0x7f, VarIntMode::NONNEGATIVE_SIGNED); BOOST_CHECK_EQUAL(HexStr(ss), "7f"); ss.clear();
ss << VARINT_MODE(0x80, VarIntMode::NONNEGATIVE_SIGNED); BOOST_CHECK_EQUAL(HexStr(ss), "8000"); ss.clear();
ss << VARINT((uint8_t)0x80); BOOST_CHECK_EQUAL(HexStr(ss), "8000"); ss.clear();
ss << VARINT_MODE(0x1234, VarIntMode::NONNEGATIVE_SIGNED); BOOST_CHECK_EQUAL(HexStr(ss), "a334"); ss.clear();
ss << VARINT_MODE((int16_t)0x1234, VarIntMode::NONNEGATIVE_SIGNED); BOOST_CHECK_EQUAL(HexStr(ss), "a334"); ss.clear();
ss << VARINT_MODE(0xffff, VarIntMode::NONNEGATIVE_SIGNED); BOOST_CHECK_EQUAL(HexStr(ss), "82fe7f"); ss.clear();
ss << VARINT((uint16_t)0xffff); BOOST_CHECK_EQUAL(HexStr(ss), "82fe7f"); ss.clear();
ss << VARINT_MODE(0x123456, VarIntMode::NONNEGATIVE_SIGNED); BOOST_CHECK_EQUAL(HexStr(ss), "c7e756"); ss.clear();
ss << VARINT_MODE((int32_t)0x123456, VarIntMode::NONNEGATIVE_SIGNED); BOOST_CHECK_EQUAL(HexStr(ss), "c7e756"); ss.clear();
ss << VARINT(0x80123456U); BOOST_CHECK_EQUAL(HexStr(ss), "86ffc7e756"); ss.clear();
ss << VARINT((uint32_t)0x80123456U); BOOST_CHECK_EQUAL(HexStr(ss), "86ffc7e756"); ss.clear();
ss << VARINT(0xffffffff); BOOST_CHECK_EQUAL(HexStr(ss), "8efefefe7f"); ss.clear();
ss << VARINT_MODE(0x7fffffffffffffffLL, VarIntMode::NONNEGATIVE_SIGNED); BOOST_CHECK_EQUAL(HexStr(ss), "fefefefefefefefe7f"); ss.clear();
ss << VARINT(0xffffffffffffffffULL); BOOST_CHECK_EQUAL(HexStr(ss), "80fefefefefefefefe7f"); ss.clear();
}
BOOST_AUTO_TEST_CASE(compactsize)
{
CDataStream ss(SER_DISK, 0);
std::vector<char>::size_type i, j;
for (i = 1; i <= MAX_SIZE; i *= 2)
{
WriteCompactSize(ss, i-1);
WriteCompactSize(ss, i);
}
for (i = 1; i <= MAX_SIZE; i *= 2)
{
j = ReadCompactSize(ss);
BOOST_CHECK_MESSAGE((i-1) == j, "decoded:" << j << " expected:" << (i-1));
j = ReadCompactSize(ss);
BOOST_CHECK_MESSAGE(i == j, "decoded:" << j << " expected:" << i);
}
}
static bool isCanonicalException(const std::ios_base::failure& ex)
{
std::ios_base::failure expectedException("non-canonical ReadCompactSize()");
// The string returned by what() can be different for different platforms.
// Instead of directly comparing the ex.what() with an expected string,
// create an instance of exception to see if ex.what() matches
// the expected explanatory string returned by the exception instance.
return strcmp(expectedException.what(), ex.what()) == 0;
}
BOOST_AUTO_TEST_CASE(vector_bool)
{
std::vector<uint8_t> vec1{1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1, 0, 1, 0, 0, 1};
std::vector<bool> vec2{1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1, 0, 1, 0, 0, 1};
BOOST_CHECK(vec1 == std::vector<uint8_t>(vec2.begin(), vec2.end()));
BOOST_CHECK(SerializeHash(vec1) == SerializeHash(vec2));
}
BOOST_AUTO_TEST_CASE(noncanonical)
{
// Write some non-canonical CompactSize encodings, and
// make sure an exception is thrown when read back.
CDataStream ss(SER_DISK, 0);
std::vector<char>::size_type n;
// zero encoded with three bytes:
ss.write(MakeByteSpan("\xfd\x00\x00").first(3));
BOOST_CHECK_EXCEPTION(ReadCompactSize(ss), std::ios_base::failure, isCanonicalException);
// 0xfc encoded with three bytes:
ss.write(MakeByteSpan("\xfd\xfc\x00").first(3));
BOOST_CHECK_EXCEPTION(ReadCompactSize(ss), std::ios_base::failure, isCanonicalException);
// 0xfd encoded with three bytes is OK:
ss.write(MakeByteSpan("\xfd\xfd\x00").first(3));
n = ReadCompactSize(ss);
BOOST_CHECK(n == 0xfd);
// zero encoded with five bytes:
ss.write(MakeByteSpan("\xfe\x00\x00\x00\x00").first(5));
BOOST_CHECK_EXCEPTION(ReadCompactSize(ss), std::ios_base::failure, isCanonicalException);
// 0xffff encoded with five bytes:
ss.write(MakeByteSpan("\xfe\xff\xff\x00\x00").first(5));
BOOST_CHECK_EXCEPTION(ReadCompactSize(ss), std::ios_base::failure, isCanonicalException);
// zero encoded with nine bytes:
ss.write(MakeByteSpan("\xff\x00\x00\x00\x00\x00\x00\x00\x00").first(9));
BOOST_CHECK_EXCEPTION(ReadCompactSize(ss), std::ios_base::failure, isCanonicalException);
// 0x01ffffff encoded with nine bytes:
ss.write(MakeByteSpan("\xff\xff\xff\xff\x01\x00\x00\x00\x00").first(9));
BOOST_CHECK_EXCEPTION(ReadCompactSize(ss), std::ios_base::failure, isCanonicalException);
}
BOOST_AUTO_TEST_CASE(class_methods)
{
int intval(100);
bool boolval(true);
std::string stringval("testing");
const uint8_t charstrval[16]{"testing charstr"};
CMutableTransaction txval;
CTransactionRef tx_ref{MakeTransactionRef(txval)};
CSerializeMethodsTestSingle methodtest1(intval, boolval, stringval, charstrval, tx_ref);
CSerializeMethodsTestMany methodtest2(intval, boolval, stringval, charstrval, tx_ref);
CSerializeMethodsTestSingle methodtest3;
CSerializeMethodsTestMany methodtest4;
CDataStream ss(SER_DISK, PROTOCOL_VERSION);
BOOST_CHECK(methodtest1 == methodtest2);
ss << methodtest1;
ss >> methodtest4;
ss << methodtest2;
ss >> methodtest3;
BOOST_CHECK(methodtest1 == methodtest2);
BOOST_CHECK(methodtest2 == methodtest3);
BOOST_CHECK(methodtest3 == methodtest4);
CDataStream ss2(SER_DISK, PROTOCOL_VERSION, intval, boolval, stringval, charstrval, txval);
ss2 >> methodtest3;
BOOST_CHECK(methodtest3 == methodtest4);
}
BOOST_AUTO_TEST_SUITE_END()