dash/src/test/serialize_tests.cpp
Wladimir J. van der Laan 92fd887fd4 tests: add a BasicTestingSetup and apply to all tests
Make sure that chainparams and logging is properly initialized. Doing
this for every test may be overkill, but this initialization is so
simple that that does not matter.

This should fix the travis issues.
2015-03-12 09:45:22 +01:00

280 lines
9.9 KiB
C++

// Copyright (c) 2012-2013 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()