forked from bitcoin/bitcoin
-
Notifications
You must be signed in to change notification settings - Fork 3k
/
uint256_tests.cpp
287 lines (258 loc) · 10.6 KB
/
uint256_tests.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
// Copyright (c) 2011-2020 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 <streams.h>
#include <test/util/setup_common.h>
#include <uint256.h>
#include <version.h>
#include <boost/test/unit_test.hpp>
#include <iomanip>
#include <sstream>
#include <string>
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));
static 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, PROTOCOL_VERSION) == 32);
BOOST_CHECK(GetSerializeSize(ZeroL, 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, PROTOCOL_VERSION) == 20);
BOOST_CHECK(GetSerializeSize(ZeroS, 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_CASE( operator_with_self )
{
arith_uint256 v = UintToArith256(uint256S("02"));
v *= v;
BOOST_CHECK(v == UintToArith256(uint256S("04")));
v /= v;
BOOST_CHECK(v == UintToArith256(uint256S("01")));
v += v;
BOOST_CHECK(v == UintToArith256(uint256S("02")));
v -= v;
BOOST_CHECK(v == UintToArith256(uint256S("0")));
}
BOOST_AUTO_TEST_CASE( check_ONE )
{
uint256 one = uint256S("0000000000000000000000000000000000000000000000000000000000000001");
BOOST_CHECK_EQUAL(one, uint256::ONE);
}
BOOST_AUTO_TEST_SUITE_END()