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lbrycrd/src/test/uint256_tests.cpp
Pieter Wuille 528472111b Get rid of nType and nVersion 
Remove the nType and nVersion as parameters to all serialization methods
and functions. There is only one place where it's read and has an impact
(in CAddress), and even there it does not impact any of the recursively
invoked serializers.

Instead, the few places that need nType or nVersion are changed to read
it directly from the stream object, through GetType() and GetVersion()
methods which are added to all stream classes.
2016-11-07 13:56:27 -08:00

270 lines
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C++
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// Copyright (c) 2011-2015 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 "arith_uint256.h"
#include "uint256.h"
#include "version.h"
#include "test/test_bitcoin.h"
#include <boost/test/unit_test.hpp>
#include <stdint.h>
#include <sstream>
#include <iomanip>
#include <limits>
#include <cmath>
#include <string>
#include <stdio.h>
BOOST_FIXTURE_TEST_SUITE(uint256_tests, BasicTestingSetup)
const unsigned char R1Array[] =
"\x9c\x52\x4a\xdb\xcf\x56\x11\x12\x2b\x29\x12\x5e\x5d\x35\xd2\xd2"
"\x22\x81\xaa\xb5\x33\xf0\x08\x32\xd5\x56\xb1\xf9\xea\xe5\x1d\x7d";
const char R1ArrayHex[] = "7D1DE5EAF9B156D53208F033B5AA8122D2d2355d5e12292b121156cfdb4a529c";
const uint256 R1L = uint256(std::vector<unsigned char>(R1Array,R1Array+32));
const uint160 R1S = uint160(std::vector<unsigned char>(R1Array,R1Array+20));
const unsigned char R2Array[] =
"\x70\x32\x1d\x7c\x47\xa5\x6b\x40\x26\x7e\x0a\xc3\xa6\x9c\xb6\xbf"
"\x13\x30\x47\xa3\x19\x2d\xda\x71\x49\x13\x72\xf0\xb4\xca\x81\xd7";
const uint256 R2L = uint256(std::vector<unsigned char>(R2Array,R2Array+32));
const uint160 R2S = uint160(std::vector<unsigned char>(R2Array,R2Array+20));
const unsigned char ZeroArray[] =
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
const uint256 ZeroL = uint256(std::vector<unsigned char>(ZeroArray,ZeroArray+32));
const uint160 ZeroS = uint160(std::vector<unsigned char>(ZeroArray,ZeroArray+20));
const unsigned char OneArray[] =
"\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
const uint256 OneL = uint256(std::vector<unsigned char>(OneArray,OneArray+32));
const uint160 OneS = uint160(std::vector<unsigned char>(OneArray,OneArray+20));
const unsigned char MaxArray[] =
"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff";
const uint256 MaxL = uint256(std::vector<unsigned char>(MaxArray,MaxArray+32));
const uint160 MaxS = uint160(std::vector<unsigned char>(MaxArray,MaxArray+20));
std::string ArrayToString(const unsigned char A[], unsigned int width)
{
std::stringstream Stream;
Stream << std::hex;
for (unsigned int i = 0; i < width; ++i)
{
Stream<<std::setw(2)<<std::setfill('0')<<(unsigned int)A[width-i-1];
}
return Stream.str();
}
inline uint160 uint160S(const char *str)
{
uint160 rv;
rv.SetHex(str);
return rv;
}
inline uint160 uint160S(const std::string& str)
{
uint160 rv;
rv.SetHex(str);
return rv;
}
BOOST_AUTO_TEST_CASE( basics ) // constructors, equality, inequality
{
BOOST_CHECK(1 == 0+1);
// constructor uint256(vector<char>):
BOOST_CHECK(R1L.ToString() == ArrayToString(R1Array,32));
BOOST_CHECK(R1S.ToString() == ArrayToString(R1Array,20));
BOOST_CHECK(R2L.ToString() == ArrayToString(R2Array,32));
BOOST_CHECK(R2S.ToString() == ArrayToString(R2Array,20));
BOOST_CHECK(ZeroL.ToString() == ArrayToString(ZeroArray,32));
BOOST_CHECK(ZeroS.ToString() == ArrayToString(ZeroArray,20));
BOOST_CHECK(OneL.ToString() == ArrayToString(OneArray,32));
BOOST_CHECK(OneS.ToString() == ArrayToString(OneArray,20));
BOOST_CHECK(MaxL.ToString() == ArrayToString(MaxArray,32));
BOOST_CHECK(MaxS.ToString() == ArrayToString(MaxArray,20));
BOOST_CHECK(OneL.ToString() != ArrayToString(ZeroArray,32));
BOOST_CHECK(OneS.ToString() != ArrayToString(ZeroArray,20));
// == and !=
BOOST_CHECK(R1L != R2L && R1S != R2S);
BOOST_CHECK(ZeroL != OneL && ZeroS != OneS);
BOOST_CHECK(OneL != ZeroL && OneS != ZeroS);
BOOST_CHECK(MaxL != ZeroL && MaxS != ZeroS);
// String Constructor and Copy Constructor
BOOST_CHECK(uint256S("0x"+R1L.ToString()) == R1L);
BOOST_CHECK(uint256S("0x"+R2L.ToString()) == R2L);
BOOST_CHECK(uint256S("0x"+ZeroL.ToString()) == ZeroL);
BOOST_CHECK(uint256S("0x"+OneL.ToString()) == OneL);
BOOST_CHECK(uint256S("0x"+MaxL.ToString()) == MaxL);
BOOST_CHECK(uint256S(R1L.ToString()) == R1L);
BOOST_CHECK(uint256S(" 0x"+R1L.ToString()+" ") == R1L);
BOOST_CHECK(uint256S("") == ZeroL);
BOOST_CHECK(R1L == uint256S(R1ArrayHex));
BOOST_CHECK(uint256(R1L) == R1L);
BOOST_CHECK(uint256(ZeroL) == ZeroL);
BOOST_CHECK(uint256(OneL) == OneL);
BOOST_CHECK(uint160S("0x"+R1S.ToString()) == R1S);
BOOST_CHECK(uint160S("0x"+R2S.ToString()) == R2S);
BOOST_CHECK(uint160S("0x"+ZeroS.ToString()) == ZeroS);
BOOST_CHECK(uint160S("0x"+OneS.ToString()) == OneS);
BOOST_CHECK(uint160S("0x"+MaxS.ToString()) == MaxS);
BOOST_CHECK(uint160S(R1S.ToString()) == R1S);
BOOST_CHECK(uint160S(" 0x"+R1S.ToString()+" ") == R1S);
BOOST_CHECK(uint160S("") == ZeroS);
BOOST_CHECK(R1S == uint160S(R1ArrayHex));
BOOST_CHECK(uint160(R1S) == R1S);
BOOST_CHECK(uint160(ZeroS) == ZeroS);
BOOST_CHECK(uint160(OneS) == OneS);
}
BOOST_AUTO_TEST_CASE( comparison ) // <= >= < >
{
uint256 LastL;
for (int i = 255; i >= 0; --i) {
uint256 TmpL;
*(TmpL.begin() + (i>>3)) |= 1<<(7-(i&7));
BOOST_CHECK( LastL < TmpL );
LastL = TmpL;
}
BOOST_CHECK( ZeroL < R1L );
BOOST_CHECK( R2L < R1L );
BOOST_CHECK( ZeroL < OneL );
BOOST_CHECK( OneL < MaxL );
BOOST_CHECK( R1L < MaxL );
BOOST_CHECK( R2L < MaxL );
uint160 LastS;
for (int i = 159; i >= 0; --i) {
uint160 TmpS;
*(TmpS.begin() + (i>>3)) |= 1<<(7-(i&7));
BOOST_CHECK( LastS < TmpS );
LastS = TmpS;
}
BOOST_CHECK( ZeroS < R1S );
BOOST_CHECK( R2S < R1S );
BOOST_CHECK( ZeroS < OneS );
BOOST_CHECK( OneS < MaxS );
BOOST_CHECK( R1S < MaxS );
BOOST_CHECK( R2S < MaxS );
}
BOOST_AUTO_TEST_CASE( methods ) // GetHex SetHex begin() end() size() GetLow64 GetSerializeSize, Serialize, Unserialize
{
BOOST_CHECK(R1L.GetHex() == R1L.ToString());
BOOST_CHECK(R2L.GetHex() == R2L.ToString());
BOOST_CHECK(OneL.GetHex() == OneL.ToString());
BOOST_CHECK(MaxL.GetHex() == MaxL.ToString());
uint256 TmpL(R1L);
BOOST_CHECK(TmpL == R1L);
TmpL.SetHex(R2L.ToString()); BOOST_CHECK(TmpL == R2L);
TmpL.SetHex(ZeroL.ToString()); BOOST_CHECK(TmpL == uint256());
TmpL.SetHex(R1L.ToString());
BOOST_CHECK(memcmp(R1L.begin(), R1Array, 32)==0);
BOOST_CHECK(memcmp(TmpL.begin(), R1Array, 32)==0);
BOOST_CHECK(memcmp(R2L.begin(), R2Array, 32)==0);
BOOST_CHECK(memcmp(ZeroL.begin(), ZeroArray, 32)==0);
BOOST_CHECK(memcmp(OneL.begin(), OneArray, 32)==0);
BOOST_CHECK(R1L.size() == sizeof(R1L));
BOOST_CHECK(sizeof(R1L) == 32);
BOOST_CHECK(R1L.size() == 32);
BOOST_CHECK(R2L.size() == 32);
BOOST_CHECK(ZeroL.size() == 32);
BOOST_CHECK(MaxL.size() == 32);
BOOST_CHECK(R1L.begin() + 32 == R1L.end());
BOOST_CHECK(R2L.begin() + 32 == R2L.end());
BOOST_CHECK(OneL.begin() + 32 == OneL.end());
BOOST_CHECK(MaxL.begin() + 32 == MaxL.end());
BOOST_CHECK(TmpL.begin() + 32 == TmpL.end());
BOOST_CHECK(GetSerializeSize(R1L, 0, PROTOCOL_VERSION) == 32);
BOOST_CHECK(GetSerializeSize(ZeroL, 0, PROTOCOL_VERSION) == 32);
CDataStream ss(0, PROTOCOL_VERSION);
ss << R1L;
BOOST_CHECK(ss.str() == std::string(R1Array,R1Array+32));
ss >> TmpL;
BOOST_CHECK(R1L == TmpL);
ss.clear();
ss << ZeroL;
BOOST_CHECK(ss.str() == std::string(ZeroArray,ZeroArray+32));
ss >> TmpL;
BOOST_CHECK(ZeroL == TmpL);
ss.clear();
ss << MaxL;
BOOST_CHECK(ss.str() == std::string(MaxArray,MaxArray+32));
ss >> TmpL;
BOOST_CHECK(MaxL == TmpL);
ss.clear();
BOOST_CHECK(R1S.GetHex() == R1S.ToString());
BOOST_CHECK(R2S.GetHex() == R2S.ToString());
BOOST_CHECK(OneS.GetHex() == OneS.ToString());
BOOST_CHECK(MaxS.GetHex() == MaxS.ToString());
uint160 TmpS(R1S);
BOOST_CHECK(TmpS == R1S);
TmpS.SetHex(R2S.ToString()); BOOST_CHECK(TmpS == R2S);
TmpS.SetHex(ZeroS.ToString()); BOOST_CHECK(TmpS == uint160());
TmpS.SetHex(R1S.ToString());
BOOST_CHECK(memcmp(R1S.begin(), R1Array, 20)==0);
BOOST_CHECK(memcmp(TmpS.begin(), R1Array, 20)==0);
BOOST_CHECK(memcmp(R2S.begin(), R2Array, 20)==0);
BOOST_CHECK(memcmp(ZeroS.begin(), ZeroArray, 20)==0);
BOOST_CHECK(memcmp(OneS.begin(), OneArray, 20)==0);
BOOST_CHECK(R1S.size() == sizeof(R1S));
BOOST_CHECK(sizeof(R1S) == 20);
BOOST_CHECK(R1S.size() == 20);
BOOST_CHECK(R2S.size() == 20);
BOOST_CHECK(ZeroS.size() == 20);
BOOST_CHECK(MaxS.size() == 20);
BOOST_CHECK(R1S.begin() + 20 == R1S.end());
BOOST_CHECK(R2S.begin() + 20 == R2S.end());
BOOST_CHECK(OneS.begin() + 20 == OneS.end());
BOOST_CHECK(MaxS.begin() + 20 == MaxS.end());
BOOST_CHECK(TmpS.begin() + 20 == TmpS.end());
BOOST_CHECK(GetSerializeSize(R1S, 0, PROTOCOL_VERSION) == 20);
BOOST_CHECK(GetSerializeSize(ZeroS, 0, PROTOCOL_VERSION) == 20);
ss << R1S;
BOOST_CHECK(ss.str() == std::string(R1Array,R1Array+20));
ss >> TmpS;
BOOST_CHECK(R1S == TmpS);
ss.clear();
ss << ZeroS;
BOOST_CHECK(ss.str() == std::string(ZeroArray,ZeroArray+20));
ss >> TmpS;
BOOST_CHECK(ZeroS == TmpS);
ss.clear();
ss << MaxS;
BOOST_CHECK(ss.str() == std::string(MaxArray,MaxArray+20));
ss >> TmpS;
BOOST_CHECK(MaxS == TmpS);
ss.clear();
}
BOOST_AUTO_TEST_CASE( conversion )
{
BOOST_CHECK(ArithToUint256(UintToArith256(ZeroL)) == ZeroL);
BOOST_CHECK(ArithToUint256(UintToArith256(OneL)) == OneL);
BOOST_CHECK(ArithToUint256(UintToArith256(R1L)) == R1L);
BOOST_CHECK(ArithToUint256(UintToArith256(R2L)) == R2L);
BOOST_CHECK(UintToArith256(ZeroL) == 0);
BOOST_CHECK(UintToArith256(OneL) == 1);
BOOST_CHECK(ArithToUint256(0) == ZeroL);
BOOST_CHECK(ArithToUint256(1) == OneL);
BOOST_CHECK(arith_uint256(R1L.GetHex()) == UintToArith256(R1L));
BOOST_CHECK(arith_uint256(R2L.GetHex()) == UintToArith256(R2L));
BOOST_CHECK(R1L.GetHex() == UintToArith256(R1L).GetHex());
BOOST_CHECK(R2L.GetHex() == UintToArith256(R2L).GetHex());
}
BOOST_AUTO_TEST_SUITE_END()
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