You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
279 lines
9.9 KiB
279 lines
9.9 KiB
// Copyright (c) 2012-2015 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 "serialize.h" |
|
#include "streams.h" |
|
#include "hash.h" |
|
#include "test/test_bitcoin.h" |
|
|
|
#include <stdint.h> |
|
|
|
#include <boost/test/unit_test.hpp> |
|
|
|
using namespace std; |
|
|
|
BOOST_FIXTURE_TEST_SUITE(serialize_tests, BasicTestingSetup) |
|
|
|
BOOST_AUTO_TEST_CASE(sizes) |
|
{ |
|
BOOST_CHECK_EQUAL(sizeof(char), GetSerializeSize(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)); |
|
BOOST_CHECK_EQUAL(sizeof(float), GetSerializeSize(float(0), 0)); |
|
BOOST_CHECK_EQUAL(sizeof(double), GetSerializeSize(double(0), 0)); |
|
// Bool is serialized as char |
|
BOOST_CHECK_EQUAL(sizeof(char), GetSerializeSize(bool(0), 0)); |
|
|
|
// Sanity-check GetSerializeSize and c++ type matching |
|
BOOST_CHECK_EQUAL(GetSerializeSize(char(0), 0), 1); |
|
BOOST_CHECK_EQUAL(GetSerializeSize(int8_t(0), 0), 1); |
|
BOOST_CHECK_EQUAL(GetSerializeSize(uint8_t(0), 0), 1); |
|
BOOST_CHECK_EQUAL(GetSerializeSize(int16_t(0), 0), 2); |
|
BOOST_CHECK_EQUAL(GetSerializeSize(uint16_t(0), 0), 2); |
|
BOOST_CHECK_EQUAL(GetSerializeSize(int32_t(0), 0), 4); |
|
BOOST_CHECK_EQUAL(GetSerializeSize(uint32_t(0), 0), 4); |
|
BOOST_CHECK_EQUAL(GetSerializeSize(int64_t(0), 0), 8); |
|
BOOST_CHECK_EQUAL(GetSerializeSize(uint64_t(0), 0), 8); |
|
BOOST_CHECK_EQUAL(GetSerializeSize(float(0), 0), 4); |
|
BOOST_CHECK_EQUAL(GetSerializeSize(double(0), 0), 8); |
|
BOOST_CHECK_EQUAL(GetSerializeSize(bool(0), 0), 1); |
|
} |
|
|
|
BOOST_AUTO_TEST_CASE(floats_conversion) |
|
{ |
|
// Choose values that map unambigiously to binary floating point to avoid |
|
// rounding issues at the compiler side. |
|
BOOST_CHECK_EQUAL(ser_uint32_to_float(0x00000000), 0.0F); |
|
BOOST_CHECK_EQUAL(ser_uint32_to_float(0x3f000000), 0.5F); |
|
BOOST_CHECK_EQUAL(ser_uint32_to_float(0x3f800000), 1.0F); |
|
BOOST_CHECK_EQUAL(ser_uint32_to_float(0x40000000), 2.0F); |
|
BOOST_CHECK_EQUAL(ser_uint32_to_float(0x40800000), 4.0F); |
|
BOOST_CHECK_EQUAL(ser_uint32_to_float(0x44444444), 785.066650390625F); |
|
|
|
BOOST_CHECK_EQUAL(ser_float_to_uint32(0.0F), 0x00000000); |
|
BOOST_CHECK_EQUAL(ser_float_to_uint32(0.5F), 0x3f000000); |
|
BOOST_CHECK_EQUAL(ser_float_to_uint32(1.0F), 0x3f800000); |
|
BOOST_CHECK_EQUAL(ser_float_to_uint32(2.0F), 0x40000000); |
|
BOOST_CHECK_EQUAL(ser_float_to_uint32(4.0F), 0x40800000); |
|
BOOST_CHECK_EQUAL(ser_float_to_uint32(785.066650390625F), 0x44444444); |
|
} |
|
|
|
BOOST_AUTO_TEST_CASE(doubles_conversion) |
|
{ |
|
// Choose values that map unambigiously to binary floating point to avoid |
|
// rounding issues at the compiler side. |
|
BOOST_CHECK_EQUAL(ser_uint64_to_double(0x0000000000000000ULL), 0.0); |
|
BOOST_CHECK_EQUAL(ser_uint64_to_double(0x3fe0000000000000ULL), 0.5); |
|
BOOST_CHECK_EQUAL(ser_uint64_to_double(0x3ff0000000000000ULL), 1.0); |
|
BOOST_CHECK_EQUAL(ser_uint64_to_double(0x4000000000000000ULL), 2.0); |
|
BOOST_CHECK_EQUAL(ser_uint64_to_double(0x4010000000000000ULL), 4.0); |
|
BOOST_CHECK_EQUAL(ser_uint64_to_double(0x4088888880000000ULL), 785.066650390625); |
|
|
|
BOOST_CHECK_EQUAL(ser_double_to_uint64(0.0), 0x0000000000000000ULL); |
|
BOOST_CHECK_EQUAL(ser_double_to_uint64(0.5), 0x3fe0000000000000ULL); |
|
BOOST_CHECK_EQUAL(ser_double_to_uint64(1.0), 0x3ff0000000000000ULL); |
|
BOOST_CHECK_EQUAL(ser_double_to_uint64(2.0), 0x4000000000000000ULL); |
|
BOOST_CHECK_EQUAL(ser_double_to_uint64(4.0), 0x4010000000000000ULL); |
|
BOOST_CHECK_EQUAL(ser_double_to_uint64(785.066650390625), 0x4088888880000000ULL); |
|
} |
|
/* |
|
Python code to generate the below hashes: |
|
|
|
def reversed_hex(x): |
|
return binascii.hexlify(''.join(reversed(x))) |
|
def dsha256(x): |
|
return hashlib.sha256(hashlib.sha256(x).digest()).digest() |
|
|
|
reversed_hex(dsha256(''.join(struct.pack('<f', x) for x in range(0,1000)))) == '8e8b4cf3e4df8b332057e3e23af42ebc663b61e0495d5e7e32d85099d7f3fe0c' |
|
reversed_hex(dsha256(''.join(struct.pack('<d', x) for x in range(0,1000)))) == '43d0c82591953c4eafe114590d392676a01585d25b25d433557f0d7878b23f96' |
|
*/ |
|
BOOST_AUTO_TEST_CASE(floats) |
|
{ |
|
CDataStream ss(SER_DISK, 0); |
|
// encode |
|
for (int i = 0; i < 1000; i++) { |
|
ss << float(i); |
|
} |
|
BOOST_CHECK(Hash(ss.begin(), ss.end()) == uint256S("8e8b4cf3e4df8b332057e3e23af42ebc663b61e0495d5e7e32d85099d7f3fe0c")); |
|
|
|
// decode |
|
for (int i = 0; i < 1000; i++) { |
|
float j; |
|
ss >> j; |
|
BOOST_CHECK_MESSAGE(i == j, "decoded:" << j << " expected:" << i); |
|
} |
|
} |
|
|
|
BOOST_AUTO_TEST_CASE(doubles) |
|
{ |
|
CDataStream ss(SER_DISK, 0); |
|
// encode |
|
for (int i = 0; i < 1000; i++) { |
|
ss << double(i); |
|
} |
|
BOOST_CHECK(Hash(ss.begin(), ss.end()) == uint256S("43d0c82591953c4eafe114590d392676a01585d25b25d433557f0d7878b23f96")); |
|
|
|
// decode |
|
for (int i = 0; i < 1000; i++) { |
|
double j; |
|
ss >> j; |
|
BOOST_CHECK_MESSAGE(i == j, "decoded:" << j << " expected:" << i); |
|
} |
|
} |
|
|
|
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(i); |
|
size += ::GetSerializeSize(VARINT(i), 0, 0); |
|
BOOST_CHECK(size == ss.size()); |
|
} |
|
|
|
for (uint64_t i = 0; i < 100000000000ULL; i += 999999937) { |
|
ss << VARINT(i); |
|
size += ::GetSerializeSize(VARINT(i), 0, 0); |
|
BOOST_CHECK(size == ss.size()); |
|
} |
|
|
|
// decode |
|
for (int i = 0; i < 100000; i++) { |
|
int j = -1; |
|
ss >> VARINT(j); |
|
BOOST_CHECK_MESSAGE(i == j, "decoded:" << j << " expected:" << i); |
|
} |
|
|
|
for (uint64_t i = 0; i < 100000000000ULL; i += 999999937) { |
|
uint64_t j = -1; |
|
ss >> VARINT(j); |
|
BOOST_CHECK_MESSAGE(i == j, "decoded:" << j << " expected:" << i); |
|
} |
|
} |
|
|
|
BOOST_AUTO_TEST_CASE(compactsize) |
|
{ |
|
CDataStream ss(SER_DISK, 0); |
|
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(noncanonical) |
|
{ |
|
// Write some non-canonical CompactSize encodings, and |
|
// make sure an exception is thrown when read back. |
|
CDataStream ss(SER_DISK, 0); |
|
vector<char>::size_type n; |
|
|
|
// zero encoded with three bytes: |
|
ss.write("\xfd\x00\x00", 3); |
|
BOOST_CHECK_EXCEPTION(ReadCompactSize(ss), std::ios_base::failure, isCanonicalException); |
|
|
|
// 0xfc encoded with three bytes: |
|
ss.write("\xfd\xfc\x00", 3); |
|
BOOST_CHECK_EXCEPTION(ReadCompactSize(ss), std::ios_base::failure, isCanonicalException); |
|
|
|
// 0xfd encoded with three bytes is OK: |
|
ss.write("\xfd\xfd\x00", 3); |
|
n = ReadCompactSize(ss); |
|
BOOST_CHECK(n == 0xfd); |
|
|
|
// zero encoded with five bytes: |
|
ss.write("\xfe\x00\x00\x00\x00", 5); |
|
BOOST_CHECK_EXCEPTION(ReadCompactSize(ss), std::ios_base::failure, isCanonicalException); |
|
|
|
// 0xffff encoded with five bytes: |
|
ss.write("\xfe\xff\xff\x00\x00", 5); |
|
BOOST_CHECK_EXCEPTION(ReadCompactSize(ss), std::ios_base::failure, isCanonicalException); |
|
|
|
// zero encoded with nine bytes: |
|
ss.write("\xff\x00\x00\x00\x00\x00\x00\x00\x00", 9); |
|
BOOST_CHECK_EXCEPTION(ReadCompactSize(ss), std::ios_base::failure, isCanonicalException); |
|
|
|
// 0x01ffffff encoded with nine bytes: |
|
ss.write("\xff\xff\xff\xff\x01\x00\x00\x00\x00", 9); |
|
BOOST_CHECK_EXCEPTION(ReadCompactSize(ss), std::ios_base::failure, isCanonicalException); |
|
} |
|
|
|
BOOST_AUTO_TEST_CASE(insert_delete) |
|
{ |
|
// Test inserting/deleting bytes. |
|
CDataStream ss(SER_DISK, 0); |
|
BOOST_CHECK_EQUAL(ss.size(), 0); |
|
|
|
ss.write("\x00\x01\x02\xff", 4); |
|
BOOST_CHECK_EQUAL(ss.size(), 4); |
|
|
|
char c = (char)11; |
|
|
|
// Inserting at beginning/end/middle: |
|
ss.insert(ss.begin(), c); |
|
BOOST_CHECK_EQUAL(ss.size(), 5); |
|
BOOST_CHECK_EQUAL(ss[0], c); |
|
BOOST_CHECK_EQUAL(ss[1], 0); |
|
|
|
ss.insert(ss.end(), c); |
|
BOOST_CHECK_EQUAL(ss.size(), 6); |
|
BOOST_CHECK_EQUAL(ss[4], (char)0xff); |
|
BOOST_CHECK_EQUAL(ss[5], c); |
|
|
|
ss.insert(ss.begin()+2, c); |
|
BOOST_CHECK_EQUAL(ss.size(), 7); |
|
BOOST_CHECK_EQUAL(ss[2], c); |
|
|
|
// Delete at beginning/end/middle |
|
ss.erase(ss.begin()); |
|
BOOST_CHECK_EQUAL(ss.size(), 6); |
|
BOOST_CHECK_EQUAL(ss[0], 0); |
|
|
|
ss.erase(ss.begin()+ss.size()-1); |
|
BOOST_CHECK_EQUAL(ss.size(), 5); |
|
BOOST_CHECK_EQUAL(ss[4], (char)0xff); |
|
|
|
ss.erase(ss.begin()+1); |
|
BOOST_CHECK_EQUAL(ss.size(), 4); |
|
BOOST_CHECK_EQUAL(ss[0], 0); |
|
BOOST_CHECK_EQUAL(ss[1], 1); |
|
BOOST_CHECK_EQUAL(ss[2], 2); |
|
BOOST_CHECK_EQUAL(ss[3], (char)0xff); |
|
|
|
// Make sure GetAndClear does the right thing: |
|
CSerializeData d; |
|
ss.GetAndClear(d); |
|
BOOST_CHECK_EQUAL(ss.size(), 0); |
|
} |
|
|
|
BOOST_AUTO_TEST_SUITE_END()
|
|
|