Line data Source code
1 : // Copyright (c) 2011-2013 The Bitcoin Core developers
2 : // Distributed under the MIT software license, see the accompanying
3 : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
4 : #include "arith_uint256.h"
5 : #include "uint256.h"
6 : #include "version.h"
7 : #include "test/test_bitcoin.h"
8 :
9 : #include <boost/test/unit_test.hpp>
10 : #include <stdint.h>
11 : #include <sstream>
12 : #include <iomanip>
13 : #include <limits>
14 : #include <cmath>
15 : #include <string>
16 : #include <stdio.h>
17 :
18 1 : BOOST_FIXTURE_TEST_SUITE(uint256_tests, BasicTestingSetup)
19 :
20 : const unsigned char R1Array[] =
21 : "\x9c\x52\x4a\xdb\xcf\x56\x11\x12\x2b\x29\x12\x5e\x5d\x35\xd2\xd2"
22 : "\x22\x81\xaa\xb5\x33\xf0\x08\x32\xd5\x56\xb1\xf9\xea\xe5\x1d\x7d";
23 : const char R1ArrayHex[] = "7D1DE5EAF9B156D53208F033B5AA8122D2d2355d5e12292b121156cfdb4a529c";
24 3 : const uint256 R1L = uint256(std::vector<unsigned char>(R1Array,R1Array+32));
25 3 : const uint160 R1S = uint160(std::vector<unsigned char>(R1Array,R1Array+20));
26 :
27 : const unsigned char R2Array[] =
28 : "\x70\x32\x1d\x7c\x47\xa5\x6b\x40\x26\x7e\x0a\xc3\xa6\x9c\xb6\xbf"
29 : "\x13\x30\x47\xa3\x19\x2d\xda\x71\x49\x13\x72\xf0\xb4\xca\x81\xd7";
30 3 : const uint256 R2L = uint256(std::vector<unsigned char>(R2Array,R2Array+32));
31 3 : const uint160 R2S = uint160(std::vector<unsigned char>(R2Array,R2Array+20));
32 :
33 : const unsigned char ZeroArray[] =
34 : "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
35 : "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
36 3 : const uint256 ZeroL = uint256(std::vector<unsigned char>(ZeroArray,ZeroArray+32));
37 3 : const uint160 ZeroS = uint160(std::vector<unsigned char>(ZeroArray,ZeroArray+20));
38 :
39 : const unsigned char OneArray[] =
40 : "\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
41 : "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
42 3 : const uint256 OneL = uint256(std::vector<unsigned char>(OneArray,OneArray+32));
43 3 : const uint160 OneS = uint160(std::vector<unsigned char>(OneArray,OneArray+20));
44 :
45 : const unsigned char MaxArray[] =
46 : "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
47 : "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff";
48 3 : const uint256 MaxL = uint256(std::vector<unsigned char>(MaxArray,MaxArray+32));
49 3 : const uint160 MaxS = uint160(std::vector<unsigned char>(MaxArray,MaxArray+20));
50 :
51 12 : std::string ArrayToString(const unsigned char A[], unsigned int width)
52 : {
53 12 : std::stringstream Stream;
54 : Stream << std::hex;
55 324 : for (unsigned int i = 0; i < width; ++i)
56 : {
57 936 : Stream<<std::setw(2)<<std::setfill('0')<<(unsigned int)A[width-i-1];
58 : }
59 12 : return Stream.str();
60 : }
61 :
62 : inline uint160 uint160S(const char *str)
63 : {
64 : uint160 rv;
65 2 : rv.SetHex(str);
66 : return rv;
67 : }
68 : inline uint160 uint160S(const std::string& str)
69 : {
70 : uint160 rv;
71 7 : rv.SetHex(str);
72 : return rv;
73 : }
74 :
75 6 : BOOST_AUTO_TEST_CASE( basics ) // constructors, equality, inequality
76 : {
77 7 : BOOST_CHECK(1 == 0+1);
78 : // constructor uint256(vector<char>):
79 10 : BOOST_CHECK(R1L.ToString() == ArrayToString(R1Array,32));
80 10 : BOOST_CHECK(R1S.ToString() == ArrayToString(R1Array,20));
81 10 : BOOST_CHECK(R2L.ToString() == ArrayToString(R2Array,32));
82 10 : BOOST_CHECK(R2S.ToString() == ArrayToString(R2Array,20));
83 10 : BOOST_CHECK(ZeroL.ToString() == ArrayToString(ZeroArray,32));
84 10 : BOOST_CHECK(ZeroS.ToString() == ArrayToString(ZeroArray,20));
85 10 : BOOST_CHECK(OneL.ToString() == ArrayToString(OneArray,32));
86 10 : BOOST_CHECK(OneS.ToString() == ArrayToString(OneArray,20));
87 10 : BOOST_CHECK(MaxL.ToString() == ArrayToString(MaxArray,32));
88 10 : BOOST_CHECK(MaxS.ToString() == ArrayToString(MaxArray,20));
89 11 : BOOST_CHECK(OneL.ToString() != ArrayToString(ZeroArray,32));
90 11 : BOOST_CHECK(OneS.ToString() != ArrayToString(ZeroArray,20));
91 :
92 : // == and !=
93 9 : BOOST_CHECK(R1L != R2L && R1S != R2S);
94 9 : BOOST_CHECK(ZeroL != OneL && ZeroS != OneS);
95 9 : BOOST_CHECK(OneL != ZeroL && OneS != ZeroS);
96 9 : BOOST_CHECK(MaxL != ZeroL && MaxS != ZeroS);
97 :
98 : // String Constructor and Copy Constructor
99 11 : BOOST_CHECK(uint256S("0x"+R1L.ToString()) == R1L);
100 11 : BOOST_CHECK(uint256S("0x"+R2L.ToString()) == R2L);
101 11 : BOOST_CHECK(uint256S("0x"+ZeroL.ToString()) == ZeroL);
102 11 : BOOST_CHECK(uint256S("0x"+OneL.ToString()) == OneL);
103 11 : BOOST_CHECK(uint256S("0x"+MaxL.ToString()) == MaxL);
104 10 : BOOST_CHECK(uint256S(R1L.ToString()) == R1L);
105 12 : BOOST_CHECK(uint256S(" 0x"+R1L.ToString()+" ") == R1L);
106 8 : BOOST_CHECK(uint256S("") == ZeroL);
107 8 : BOOST_CHECK(R1L == uint256S(R1ArrayHex));
108 9 : BOOST_CHECK(uint256(R1L) == R1L);
109 9 : BOOST_CHECK(uint256(ZeroL) == ZeroL);
110 9 : BOOST_CHECK(uint256(OneL) == OneL);
111 :
112 11 : BOOST_CHECK(uint160S("0x"+R1S.ToString()) == R1S);
113 11 : BOOST_CHECK(uint160S("0x"+R2S.ToString()) == R2S);
114 10 : BOOST_CHECK(uint160S("0x"+ZeroS.ToString()) == ZeroS);
115 11 : BOOST_CHECK(uint160S("0x"+OneS.ToString()) == OneS);
116 11 : BOOST_CHECK(uint160S("0x"+MaxS.ToString()) == MaxS);
117 10 : BOOST_CHECK(uint160S(R1S.ToString()) == R1S);
118 12 : BOOST_CHECK(uint160S(" 0x"+R1S.ToString()+" ") == R1S);
119 8 : BOOST_CHECK(uint160S("") == ZeroS);
120 8 : BOOST_CHECK(R1S == uint160S(R1ArrayHex));
121 :
122 9 : BOOST_CHECK(uint160(R1S) == R1S);
123 9 : BOOST_CHECK(uint160(ZeroS) == ZeroS);
124 9 : BOOST_CHECK(uint160(OneS) == OneS);
125 1 : }
126 :
127 6 : BOOST_AUTO_TEST_CASE( comparison ) // <= >= < >
128 : {
129 : uint256 LastL;
130 257 : for (int i = 255; i >= 0; --i) {
131 : uint256 TmpL;
132 256 : *(TmpL.begin() + (i>>3)) |= 1<<(7-(i&7));
133 2048 : BOOST_CHECK( LastL < TmpL );
134 256 : LastL = TmpL;
135 : }
136 :
137 8 : BOOST_CHECK( ZeroL < R1L );
138 8 : BOOST_CHECK( R2L < R1L );
139 8 : BOOST_CHECK( ZeroL < OneL );
140 8 : BOOST_CHECK( OneL < MaxL );
141 8 : BOOST_CHECK( R1L < MaxL );
142 8 : BOOST_CHECK( R2L < MaxL );
143 :
144 : uint160 LastS;
145 161 : for (int i = 159; i >= 0; --i) {
146 : uint160 TmpS;
147 160 : *(TmpS.begin() + (i>>3)) |= 1<<(7-(i&7));
148 1280 : BOOST_CHECK( LastS < TmpS );
149 160 : LastS = TmpS;
150 : }
151 8 : BOOST_CHECK( ZeroS < R1S );
152 8 : BOOST_CHECK( R2S < R1S );
153 8 : BOOST_CHECK( ZeroS < OneS );
154 8 : BOOST_CHECK( OneS < MaxS );
155 8 : BOOST_CHECK( R1S < MaxS );
156 8 : BOOST_CHECK( R2S < MaxS );
157 1 : }
158 :
159 6 : BOOST_AUTO_TEST_CASE( methods ) // GetHex SetHex begin() end() size() GetLow64 GetSerializeSize, Serialize, Unserialize
160 : {
161 10 : BOOST_CHECK(R1L.GetHex() == R1L.ToString());
162 9 : BOOST_CHECK(R2L.GetHex() == R2L.ToString());
163 10 : BOOST_CHECK(OneL.GetHex() == OneL.ToString());
164 10 : BOOST_CHECK(MaxL.GetHex() == MaxL.ToString());
165 1 : uint256 TmpL(R1L);
166 8 : BOOST_CHECK(TmpL == R1L);
167 10 : TmpL.SetHex(R2L.ToString()); BOOST_CHECK(TmpL == R2L);
168 10 : TmpL.SetHex(ZeroL.ToString()); BOOST_CHECK(TmpL == uint256());
169 :
170 2 : TmpL.SetHex(R1L.ToString());
171 8 : BOOST_CHECK(memcmp(R1L.begin(), R1Array, 32)==0);
172 8 : BOOST_CHECK(memcmp(TmpL.begin(), R1Array, 32)==0);
173 8 : BOOST_CHECK(memcmp(R2L.begin(), R2Array, 32)==0);
174 8 : BOOST_CHECK(memcmp(ZeroL.begin(), ZeroArray, 32)==0);
175 8 : BOOST_CHECK(memcmp(OneL.begin(), OneArray, 32)==0);
176 8 : BOOST_CHECK(R1L.size() == sizeof(R1L));
177 8 : BOOST_CHECK(sizeof(R1L) == 32);
178 8 : BOOST_CHECK(R1L.size() == 32);
179 8 : BOOST_CHECK(R2L.size() == 32);
180 8 : BOOST_CHECK(ZeroL.size() == 32);
181 8 : BOOST_CHECK(MaxL.size() == 32);
182 8 : BOOST_CHECK(R1L.begin() + 32 == R1L.end());
183 8 : BOOST_CHECK(R2L.begin() + 32 == R2L.end());
184 8 : BOOST_CHECK(OneL.begin() + 32 == OneL.end());
185 8 : BOOST_CHECK(MaxL.begin() + 32 == MaxL.end());
186 8 : BOOST_CHECK(TmpL.begin() + 32 == TmpL.end());
187 8 : BOOST_CHECK(R1L.GetSerializeSize(0,PROTOCOL_VERSION) == 32);
188 8 : BOOST_CHECK(ZeroL.GetSerializeSize(0,PROTOCOL_VERSION) == 32);
189 :
190 1 : std::stringstream ss;
191 1 : R1L.Serialize(ss,0,PROTOCOL_VERSION);
192 12 : BOOST_CHECK(ss.str() == std::string(R1Array,R1Array+32));
193 1 : TmpL.Unserialize(ss,0,PROTOCOL_VERSION);
194 8 : BOOST_CHECK(R1L == TmpL);
195 3 : ss.str("");
196 1 : ZeroL.Serialize(ss,0,PROTOCOL_VERSION);
197 12 : BOOST_CHECK(ss.str() == std::string(ZeroArray,ZeroArray+32));
198 1 : TmpL.Unserialize(ss,0,PROTOCOL_VERSION);
199 8 : BOOST_CHECK(ZeroL == TmpL);
200 3 : ss.str("");
201 1 : MaxL.Serialize(ss,0,PROTOCOL_VERSION);
202 12 : BOOST_CHECK(ss.str() == std::string(MaxArray,MaxArray+32));
203 1 : TmpL.Unserialize(ss,0,PROTOCOL_VERSION);
204 8 : BOOST_CHECK(MaxL == TmpL);
205 3 : ss.str("");
206 :
207 10 : BOOST_CHECK(R1S.GetHex() == R1S.ToString());
208 10 : BOOST_CHECK(R2S.GetHex() == R2S.ToString());
209 10 : BOOST_CHECK(OneS.GetHex() == OneS.ToString());
210 10 : BOOST_CHECK(MaxS.GetHex() == MaxS.ToString());
211 1 : uint160 TmpS(R1S);
212 8 : BOOST_CHECK(TmpS == R1S);
213 10 : TmpS.SetHex(R2S.ToString()); BOOST_CHECK(TmpS == R2S);
214 10 : TmpS.SetHex(ZeroS.ToString()); BOOST_CHECK(TmpS == uint160());
215 :
216 2 : TmpS.SetHex(R1S.ToString());
217 8 : BOOST_CHECK(memcmp(R1S.begin(), R1Array, 20)==0);
218 8 : BOOST_CHECK(memcmp(TmpS.begin(), R1Array, 20)==0);
219 8 : BOOST_CHECK(memcmp(R2S.begin(), R2Array, 20)==0);
220 8 : BOOST_CHECK(memcmp(ZeroS.begin(), ZeroArray, 20)==0);
221 8 : BOOST_CHECK(memcmp(OneS.begin(), OneArray, 20)==0);
222 8 : BOOST_CHECK(R1S.size() == sizeof(R1S));
223 8 : BOOST_CHECK(sizeof(R1S) == 20);
224 8 : BOOST_CHECK(R1S.size() == 20);
225 8 : BOOST_CHECK(R2S.size() == 20);
226 8 : BOOST_CHECK(ZeroS.size() == 20);
227 8 : BOOST_CHECK(MaxS.size() == 20);
228 8 : BOOST_CHECK(R1S.begin() + 20 == R1S.end());
229 8 : BOOST_CHECK(R2S.begin() + 20 == R2S.end());
230 8 : BOOST_CHECK(OneS.begin() + 20 == OneS.end());
231 8 : BOOST_CHECK(MaxS.begin() + 20 == MaxS.end());
232 8 : BOOST_CHECK(TmpS.begin() + 20 == TmpS.end());
233 8 : BOOST_CHECK(R1S.GetSerializeSize(0,PROTOCOL_VERSION) == 20);
234 8 : BOOST_CHECK(ZeroS.GetSerializeSize(0,PROTOCOL_VERSION) == 20);
235 :
236 1 : R1S.Serialize(ss,0,PROTOCOL_VERSION);
237 12 : BOOST_CHECK(ss.str() == std::string(R1Array,R1Array+20));
238 1 : TmpS.Unserialize(ss,0,PROTOCOL_VERSION);
239 8 : BOOST_CHECK(R1S == TmpS);
240 3 : ss.str("");
241 1 : ZeroS.Serialize(ss,0,PROTOCOL_VERSION);
242 12 : BOOST_CHECK(ss.str() == std::string(ZeroArray,ZeroArray+20));
243 1 : TmpS.Unserialize(ss,0,PROTOCOL_VERSION);
244 8 : BOOST_CHECK(ZeroS == TmpS);
245 3 : ss.str("");
246 1 : MaxS.Serialize(ss,0,PROTOCOL_VERSION);
247 12 : BOOST_CHECK(ss.str() == std::string(MaxArray,MaxArray+20));
248 1 : TmpS.Unserialize(ss,0,PROTOCOL_VERSION);
249 8 : BOOST_CHECK(MaxS == TmpS);
250 3 : ss.str("");
251 1 : }
252 :
253 6 : BOOST_AUTO_TEST_CASE( conversion )
254 : {
255 9 : BOOST_CHECK(ArithToUint256(UintToArith256(ZeroL)) == ZeroL);
256 9 : BOOST_CHECK(ArithToUint256(UintToArith256(OneL)) == OneL);
257 9 : BOOST_CHECK(ArithToUint256(UintToArith256(R1L)) == R1L);
258 9 : BOOST_CHECK(ArithToUint256(UintToArith256(R2L)) == R2L);
259 9 : BOOST_CHECK(UintToArith256(ZeroL) == 0);
260 9 : BOOST_CHECK(UintToArith256(OneL) == 1);
261 9 : BOOST_CHECK(ArithToUint256(0) == ZeroL);
262 9 : BOOST_CHECK(ArithToUint256(1) == OneL);
263 10 : BOOST_CHECK(arith_uint256(R1L.GetHex()) == UintToArith256(R1L));
264 10 : BOOST_CHECK(arith_uint256(R2L.GetHex()) == UintToArith256(R2L));
265 10 : BOOST_CHECK(R1L.GetHex() == UintToArith256(R1L).GetHex());
266 10 : BOOST_CHECK(R2L.GetHex() == UintToArith256(R2L).GetHex());
267 1 : }
268 :
269 3 : BOOST_AUTO_TEST_SUITE_END()
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