Branch data Line data Source code
1 : : // Copyright (c) 2011-2021 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 : :
5 : : #include <streams.h>
6 : : #include <test/util/setup_common.h>
7 : : #include <uint256.h>
8 : : #include <util/strencodings.h>
9 : : #include <util/transaction_identifier.h>
10 : :
11 : : #include <boost/test/unit_test.hpp>
12 : :
13 : : #include <iomanip>
14 : : #include <sstream>
15 : : #include <string>
16 : : #include <string_view>
17 : : #include <vector>
18 : :
19 : : BOOST_AUTO_TEST_SUITE(uint256_tests)
20 : :
21 : : const unsigned char R1Array[] =
22 : : "\x9c\x52\x4a\xdb\xcf\x56\x11\x12\x2b\x29\x12\x5e\x5d\x35\xd2\xd2"
23 : : "\x22\x81\xaa\xb5\x33\xf0\x08\x32\xd5\x56\xb1\xf9\xea\xe5\x1d\x7d";
24 : : const char R1ArrayHex[] = "7D1DE5EAF9B156D53208F033B5AA8122D2d2355d5e12292b121156cfdb4a529c";
25 : : const uint256 R1L = uint256(std::vector<unsigned char>(R1Array,R1Array+32));
26 : : const uint160 R1S = uint160(std::vector<unsigned char>(R1Array,R1Array+20));
27 : :
28 : : const unsigned char R2Array[] =
29 : : "\x70\x32\x1d\x7c\x47\xa5\x6b\x40\x26\x7e\x0a\xc3\xa6\x9c\xb6\xbf"
30 : : "\x13\x30\x47\xa3\x19\x2d\xda\x71\x49\x13\x72\xf0\xb4\xca\x81\xd7";
31 : : const uint256 R2L = uint256(std::vector<unsigned char>(R2Array,R2Array+32));
32 : : const uint160 R2S = uint160(std::vector<unsigned char>(R2Array,R2Array+20));
33 : :
34 : : const unsigned char ZeroArray[] =
35 : : "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
36 : : "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
37 : : const uint256 ZeroL = uint256(std::vector<unsigned char>(ZeroArray,ZeroArray+32));
38 : : const uint160 ZeroS = uint160(std::vector<unsigned char>(ZeroArray,ZeroArray+20));
39 : :
40 : : const unsigned char OneArray[] =
41 : : "\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
42 : : "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
43 : : const uint256 OneL = uint256(std::vector<unsigned char>(OneArray,OneArray+32));
44 : : const uint160 OneS = uint160(std::vector<unsigned char>(OneArray,OneArray+20));
45 : :
46 : : const unsigned char MaxArray[] =
47 : : "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
48 : : "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff";
49 : : const uint256 MaxL = uint256(std::vector<unsigned char>(MaxArray,MaxArray+32));
50 : : const uint160 MaxS = uint160(std::vector<unsigned char>(MaxArray,MaxArray+20));
51 : :
52 : 12 : static std::string ArrayToString(const unsigned char A[], unsigned int width)
53 : : {
54 : 12 : std::stringstream Stream;
55 : 12 : Stream << std::hex;
56 [ + + ]: 324 : for (unsigned int i = 0; i < width; ++i)
57 : : {
58 [ + - + - ]: 312 : Stream<<std::setw(2)<<std::setfill('0')<<(unsigned int)A[width-i-1];
59 : : }
60 [ + - ]: 24 : return Stream.str();
61 : 12 : }
62 : :
63 [ + - + - : 7 : BOOST_AUTO_TEST_CASE( basics ) // constructors, equality, inequality
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64 : : {
65 : : // constructor uint256(vector<char>):
66 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(R1L.ToString(), ArrayToString(R1Array,32));
67 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(R1S.ToString(), ArrayToString(R1Array,20));
68 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(R2L.ToString(), ArrayToString(R2Array,32));
69 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(R2S.ToString(), ArrayToString(R2Array,20));
70 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(ZeroL.ToString(), ArrayToString(ZeroArray,32));
71 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(ZeroS.ToString(), ArrayToString(ZeroArray,20));
72 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(OneL.ToString(), ArrayToString(OneArray,32));
73 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(OneS.ToString(), ArrayToString(OneArray,20));
74 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(MaxL.ToString(), ArrayToString(MaxArray,32));
75 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(MaxS.ToString(), ArrayToString(MaxArray,20));
76 [ + - + - ]: 1 : BOOST_CHECK_NE(OneL.ToString(), ArrayToString(ZeroArray,32));
77 [ + - + - ]: 1 : BOOST_CHECK_NE(OneS.ToString(), ArrayToString(ZeroArray,20));
78 : :
79 : : // == and !=
80 [ + - + - ]: 1 : BOOST_CHECK_NE(R1L, R2L); BOOST_CHECK_NE(R1S, R2S);
81 [ + - + - ]: 1 : BOOST_CHECK_NE(ZeroL, OneL); BOOST_CHECK_NE(ZeroS, OneS);
82 [ + - + - ]: 1 : BOOST_CHECK_NE(OneL, ZeroL); BOOST_CHECK_NE(OneS, ZeroS);
83 [ + - + - : 1 : BOOST_CHECK_NE(MaxL, ZeroL); BOOST_CHECK_NE(MaxS, ZeroS);
+ - + - ]
84 : :
85 : : // String Constructor and Copy Constructor
86 [ + - + - ]: 2 : BOOST_CHECK_EQUAL(uint256::FromHex(R1L.ToString()).value(), R1L);
87 [ + - + - ]: 2 : BOOST_CHECK_EQUAL(uint256::FromHex(R2L.ToString()).value(), R2L);
88 [ + - + - ]: 2 : BOOST_CHECK_EQUAL(uint256::FromHex(ZeroL.ToString()).value(), ZeroL);
89 [ + - + - ]: 2 : BOOST_CHECK_EQUAL(uint256::FromHex(OneL.ToString()).value(), OneL);
90 [ + - + - ]: 2 : BOOST_CHECK_EQUAL(uint256::FromHex(MaxL.ToString()).value(), MaxL);
91 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(uint256::FromHex(R1ArrayHex).value(), R1L);
92 [ + - ]: 1 : BOOST_CHECK_EQUAL(uint256(R1L), R1L);
93 [ + - ]: 1 : BOOST_CHECK_EQUAL(uint256(ZeroL), ZeroL);
94 [ + - ]: 1 : BOOST_CHECK_EQUAL(uint256(OneL), OneL);
95 : :
96 [ + - + - ]: 2 : BOOST_CHECK_EQUAL(uint160::FromHex(R1S.ToString()).value(), R1S);
97 [ + - + - ]: 2 : BOOST_CHECK_EQUAL(uint160::FromHex(R2S.ToString()).value(), R2S);
98 [ + - + - ]: 2 : BOOST_CHECK_EQUAL(uint160::FromHex(ZeroS.ToString()).value(), ZeroS);
99 [ + - + - ]: 2 : BOOST_CHECK_EQUAL(uint160::FromHex(OneS.ToString()).value(), OneS);
100 [ + - + - ]: 2 : BOOST_CHECK_EQUAL(uint160::FromHex(MaxS.ToString()).value(), MaxS);
101 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(uint160::FromHex(std::string_view{R1ArrayHex + 24, 40}).value(), R1S);
102 : :
103 [ + - ]: 1 : BOOST_CHECK_EQUAL(uint160(R1S), R1S);
104 [ + - ]: 1 : BOOST_CHECK_EQUAL(uint160(ZeroS), ZeroS);
105 [ + - ]: 1 : BOOST_CHECK_EQUAL(uint160(OneS), OneS);
106 : 1 : }
107 : :
108 [ + - + - : 7 : BOOST_AUTO_TEST_CASE( comparison ) // <= >= < >
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109 : : {
110 : 1 : uint256 LastL;
111 [ + + ]: 257 : for (int i = 255; i >= 0; --i) {
112 : 256 : uint256 TmpL;
113 : 256 : *(TmpL.begin() + (i>>3)) |= 1<<(7-(i&7));
114 [ + - ]: 256 : BOOST_CHECK_LT(LastL, TmpL);
115 : 256 : LastL = TmpL;
116 : : }
117 : :
118 [ + - ]: 1 : BOOST_CHECK_LT(ZeroL, R1L);
119 [ + - ]: 1 : BOOST_CHECK_LT(R2L, R1L);
120 [ + - ]: 1 : BOOST_CHECK_LT(ZeroL, OneL);
121 [ + - ]: 1 : BOOST_CHECK_LT(OneL, MaxL);
122 [ + - ]: 1 : BOOST_CHECK_LT(R1L, MaxL);
123 [ + - ]: 1 : BOOST_CHECK_LT(R2L, MaxL);
124 : :
125 : 1 : uint160 LastS;
126 [ + + ]: 161 : for (int i = 159; i >= 0; --i) {
127 : 160 : uint160 TmpS;
128 : 160 : *(TmpS.begin() + (i>>3)) |= 1<<(7-(i&7));
129 [ + - ]: 160 : BOOST_CHECK_LT(LastS, TmpS);
130 : 160 : LastS = TmpS;
131 : : }
132 [ + - ]: 1 : BOOST_CHECK_LT(ZeroS, R1S);
133 [ + - ]: 1 : BOOST_CHECK_LT(R2S, R1S);
134 [ + - ]: 1 : BOOST_CHECK_LT(ZeroS, OneS);
135 [ + - ]: 1 : BOOST_CHECK_LT(OneS, MaxS);
136 [ + - ]: 1 : BOOST_CHECK_LT(R1S, MaxS);
137 [ + - ]: 1 : BOOST_CHECK_LT(R2S, MaxS);
138 : :
139 : : // Non-arithmetic uint256s compare from the beginning of their inner arrays:
140 [ + - ]: 1 : BOOST_CHECK_LT(R2L, R1L);
141 : : // Ensure first element comparisons give the same order as above:
142 [ + - ]: 1 : BOOST_CHECK_LT(*R2L.begin(), *R1L.begin());
143 : : // Ensure last element comparisons give a different result (swapped params):
144 [ + - ]: 1 : BOOST_CHECK_LT(*(R1L.end()-1), *(R2L.end()-1));
145 : : // Hex strings represent reverse-encoded bytes, with lexicographic ordering:
146 [ + - ]: 1 : BOOST_CHECK_LT(uint256{"1000000000000000000000000000000000000000000000000000000000000000"},
147 : : uint256{"0000000000000000000000000000000000000000000000000000000000000001"});
148 : 1 : }
149 : :
150 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(methods) // GetHex SetHexDeprecated FromHex begin() end() size() GetLow64 GetSerializeSize, Serialize, Unserialize
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151 : : {
152 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(R1L.GetHex(), R1L.ToString());
153 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(R2L.GetHex(), R2L.ToString());
154 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(OneL.GetHex(), OneL.ToString());
155 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(MaxL.GetHex(), MaxL.ToString());
156 : 1 : uint256 TmpL(R1L);
157 [ + - ]: 1 : BOOST_CHECK_EQUAL(TmpL, R1L);
158 : : // Verify previous values don't persist when setting to truncated string.
159 : 1 : TmpL.SetHexDeprecated("21");
160 [ + - ]: 1 : BOOST_CHECK_EQUAL(TmpL.ToString(), "0000000000000000000000000000000000000000000000000000000000000021");
161 [ + - + - ]: 2 : BOOST_CHECK_EQUAL(uint256::FromHex(R2L.ToString()).value(), R2L);
162 [ + - + - ]: 2 : BOOST_CHECK_EQUAL(uint256::FromHex(ZeroL.ToString()).value(), uint256());
163 : :
164 [ + - ]: 2 : TmpL = uint256::FromHex(R1L.ToString()).value();
165 [ + - + - ]: 2 : BOOST_CHECK_EQUAL_COLLECTIONS(R1L.begin(), R1L.end(), R1Array, R1Array + uint256::size());
166 [ + - + - ]: 2 : BOOST_CHECK_EQUAL_COLLECTIONS(TmpL.begin(), TmpL.end(), R1Array, R1Array + uint256::size());
167 [ + - + - ]: 2 : BOOST_CHECK_EQUAL_COLLECTIONS(R2L.begin(), R2L.end(), R2Array, R2Array + uint256::size());
168 [ + - + - ]: 2 : BOOST_CHECK_EQUAL_COLLECTIONS(ZeroL.begin(), ZeroL.end(), ZeroArray, ZeroArray + uint256::size());
169 [ + - + - ]: 2 : BOOST_CHECK_EQUAL_COLLECTIONS(OneL.begin(), OneL.end(), OneArray, OneArray + uint256::size());
170 [ + - ]: 1 : BOOST_CHECK_EQUAL(R1L.size(), sizeof(R1L));
171 [ + - ]: 1 : BOOST_CHECK_EQUAL(sizeof(R1L), 32);
172 [ + - ]: 1 : BOOST_CHECK_EQUAL(R1L.size(), 32);
173 [ + - ]: 1 : BOOST_CHECK_EQUAL(R2L.size(), 32);
174 [ + - ]: 1 : BOOST_CHECK_EQUAL(ZeroL.size(), 32);
175 [ + - ]: 1 : BOOST_CHECK_EQUAL(MaxL.size(), 32);
176 [ + - ]: 1 : BOOST_CHECK_EQUAL(R1L.begin() + 32, R1L.end());
177 [ + - ]: 1 : BOOST_CHECK_EQUAL(R2L.begin() + 32, R2L.end());
178 [ + - ]: 1 : BOOST_CHECK_EQUAL(OneL.begin() + 32, OneL.end());
179 [ + - ]: 1 : BOOST_CHECK_EQUAL(MaxL.begin() + 32, MaxL.end());
180 [ + - ]: 1 : BOOST_CHECK_EQUAL(TmpL.begin() + 32, TmpL.end());
181 [ + - ]: 1 : BOOST_CHECK_EQUAL(GetSerializeSize(R1L), 32);
182 [ + - ]: 1 : BOOST_CHECK_EQUAL(GetSerializeSize(ZeroL), 32);
183 : :
184 : 1 : DataStream ss{};
185 [ + - ]: 1 : ss << R1L;
186 [ + - + - : 2 : BOOST_CHECK_EQUAL(ss.str(), std::string(R1Array,R1Array+32));
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187 [ + - ]: 1 : ss >> TmpL;
188 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(R1L, TmpL);
189 [ - + ]: 1 : ss.clear();
190 [ + - ]: 1 : ss << ZeroL;
191 [ + - + - : 2 : BOOST_CHECK_EQUAL(ss.str(), std::string(ZeroArray,ZeroArray+32));
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192 [ + - ]: 1 : ss >> TmpL;
193 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(ZeroL, TmpL);
194 [ - + ]: 1 : ss.clear();
195 [ + - ]: 1 : ss << MaxL;
196 [ + - + - : 2 : BOOST_CHECK_EQUAL(ss.str(), std::string(MaxArray,MaxArray+32));
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197 [ + - ]: 1 : ss >> TmpL;
198 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(MaxL, TmpL);
199 [ - + ]: 1 : ss.clear();
200 : :
201 [ + - + - : 1 : BOOST_CHECK_EQUAL(R1S.GetHex(), R1S.ToString());
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202 [ + - + - : 1 : BOOST_CHECK_EQUAL(R2S.GetHex(), R2S.ToString());
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203 [ + - + - : 1 : BOOST_CHECK_EQUAL(OneS.GetHex(), OneS.ToString());
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204 [ + - + - : 1 : BOOST_CHECK_EQUAL(MaxS.GetHex(), MaxS.ToString());
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205 : 1 : uint160 TmpS(R1S);
206 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(TmpS, R1S);
207 [ + - + - : 2 : BOOST_CHECK_EQUAL(uint160::FromHex(R2S.ToString()).value(), R2S);
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208 [ + - + - : 2 : BOOST_CHECK_EQUAL(uint160::FromHex(ZeroS.ToString()).value(), uint160());
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209 : :
210 [ + - + - ]: 2 : TmpS = uint160::FromHex(R1S.ToString()).value();
211 [ + - + - : 2 : BOOST_CHECK_EQUAL_COLLECTIONS(R1S.begin(), R1S.end(), R1Array, R1Array + uint160::size());
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212 [ + - + - : 2 : BOOST_CHECK_EQUAL_COLLECTIONS(TmpS.begin(), TmpS.end(), R1Array, R1Array + uint160::size());
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213 [ + - + - : 2 : BOOST_CHECK_EQUAL_COLLECTIONS(R2S.begin(), R2S.end(), R2Array, R2Array + uint160::size());
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214 [ + - + - : 2 : BOOST_CHECK_EQUAL_COLLECTIONS(ZeroS.begin(), ZeroS.end(), ZeroArray, ZeroArray + uint160::size());
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215 [ + - + - : 2 : BOOST_CHECK_EQUAL_COLLECTIONS(OneS.begin(), OneS.end(), OneArray, OneArray + uint160::size());
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216 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(R1S.size(), sizeof(R1S));
217 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(sizeof(R1S), 20);
218 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(R1S.size(), 20);
219 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(R2S.size(), 20);
220 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(ZeroS.size(), 20);
221 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(MaxS.size(), 20);
222 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(R1S.begin() + 20, R1S.end());
223 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(R2S.begin() + 20, R2S.end());
224 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(OneS.begin() + 20, OneS.end());
225 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(MaxS.begin() + 20, MaxS.end());
226 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(TmpS.begin() + 20, TmpS.end());
227 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(GetSerializeSize(R1S), 20);
228 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(GetSerializeSize(ZeroS), 20);
229 : :
230 [ + - ]: 1 : ss << R1S;
231 [ + - + - : 2 : BOOST_CHECK_EQUAL(ss.str(), std::string(R1Array,R1Array+20));
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232 [ + - ]: 1 : ss >> TmpS;
233 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(R1S, TmpS);
234 [ - + ]: 1 : ss.clear();
235 [ + - ]: 1 : ss << ZeroS;
236 [ + - + - : 2 : BOOST_CHECK_EQUAL(ss.str(), std::string(ZeroArray,ZeroArray+20));
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237 [ + - ]: 1 : ss >> TmpS;
238 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(ZeroS, TmpS);
239 [ - + ]: 1 : ss.clear();
240 [ + - ]: 1 : ss << MaxS;
241 [ + - + - : 2 : BOOST_CHECK_EQUAL(ss.str(), std::string(MaxArray,MaxArray+20));
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242 [ + - ]: 1 : ss >> TmpS;
243 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(MaxS, TmpS);
244 [ - + ]: 1 : ss.clear();
245 : 1 : }
246 : :
247 : : /**
248 : : * Implemented as a templated function so it can be reused by other classes that have a FromHex()
249 : : * method that wraps base_blob::FromHex(), such as transaction_identifier::FromHex().
250 : : */
251 : : template <typename T>
252 : 4 : void TestFromHex()
253 : : {
254 : 4 : constexpr unsigned int num_chars{T::size() * 2};
255 : : static_assert(num_chars <= 64); // this test needs to be modified to allow for more than 64 hex chars
256 : 4 : const std::string valid_64char_input{"0123456789abcdef0123456789ABCDEF0123456789abcdef0123456789ABCDEF"};
257 [ + - ]: 4 : const auto valid_input{valid_64char_input.substr(0, num_chars)};
258 : : {
259 : : // check that lower and upper case hex characters are accepted
260 [ + - ]: 4 : auto valid_result{T::FromHex(valid_input)};
261 [ + - + - : 8 : BOOST_REQUIRE(valid_result);
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262 [ + - + - : 4 : BOOST_CHECK_EQUAL(valid_result->ToString(), ToLower(valid_input));
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263 : : }
264 : : {
265 : : // check that only strings of size num_chars are accepted
266 [ + - + - : 8 : BOOST_CHECK(!T::FromHex(""));
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267 [ + - + - : 8 : BOOST_CHECK(!T::FromHex("0"));
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268 [ + - + - : 8 : BOOST_CHECK(!T::FromHex(valid_input.substr(0, num_chars / 2)));
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269 [ + - + - : 8 : BOOST_CHECK(!T::FromHex(valid_input.substr(0, num_chars - 1)));
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270 [ + - + - : 8 : BOOST_CHECK(!T::FromHex(valid_input + "0"));
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271 : : }
272 : : {
273 : : // check that non-hex characters are not accepted
274 [ + - ]: 4 : std::string invalid_chars{R"( !"#$%&'()*+,-./:;<=>?@GHIJKLMNOPQRSTUVWXYZ[\]^_`ghijklmnopqrstuvwxyz{|}~)"};
275 [ + + ]: 296 : for (auto c : invalid_chars) {
276 [ + - + - : 584 : BOOST_CHECK(!T::FromHex(valid_input.substr(0, num_chars - 1) + c));
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277 : : }
278 : : // 0x prefixes are invalid
279 [ + - ]: 4 : std::string invalid_prefix{"0x" + valid_input};
280 [ + - + - : 8 : BOOST_CHECK(!T::FromHex(std::string_view(invalid_prefix.data(), num_chars)));
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281 [ + - + - : 8 : BOOST_CHECK(!T::FromHex(invalid_prefix));
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282 : 4 : }
283 : : {
284 : : // check that string_view length is respected
285 [ + - ]: 4 : std::string chars_68{valid_64char_input + "0123"};
286 [ + - + - : 8 : BOOST_CHECK_EQUAL(T::FromHex(std::string_view(chars_68.data(), num_chars)).value().ToString(), ToLower(valid_input));
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287 [ + - + - : 8 : BOOST_CHECK(!T::FromHex(std::string_view(chars_68.data(), num_chars - 1))); // too short
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288 [ + - + - : 8 : BOOST_CHECK(!T::FromHex(std::string_view(chars_68.data(), num_chars + 1))); // too long
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289 : 4 : }
290 : 4 : }
291 : :
292 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(from_hex)
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293 : : {
294 : 1 : TestFromHex<uint160>();
295 : 1 : TestFromHex<uint256>();
296 : 1 : TestFromHex<Txid>();
297 : 1 : TestFromHex<Wtxid>();
298 : 1 : }
299 : :
300 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(from_user_hex)
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301 : : {
302 [ + - ]: 1 : BOOST_CHECK_EQUAL(uint256::FromUserHex(""), uint256::ZERO);
303 [ + - ]: 1 : BOOST_CHECK_EQUAL(uint256::FromUserHex("0x"), uint256::ZERO);
304 [ + - ]: 1 : BOOST_CHECK_EQUAL(uint256::FromUserHex("0"), uint256::ZERO);
305 [ + - ]: 1 : BOOST_CHECK_EQUAL(uint256::FromUserHex("00"), uint256::ZERO);
306 [ + - ]: 1 : BOOST_CHECK_EQUAL(uint256::FromUserHex("1"), uint256::ONE);
307 [ + - ]: 1 : BOOST_CHECK_EQUAL(uint256::FromUserHex("0x10"), uint256{0x10});
308 [ + - ]: 1 : BOOST_CHECK_EQUAL(uint256::FromUserHex("10"), uint256{0x10});
309 [ + - ]: 1 : BOOST_CHECK_EQUAL(uint256::FromUserHex("0xFf"), uint256{0xff});
310 [ + - ]: 1 : BOOST_CHECK_EQUAL(uint256::FromUserHex("Ff"), uint256{0xff});
311 : 1 : const std::string valid_hex_64{"0x0123456789abcdef0123456789abcdef0123456789ABDCEF0123456789ABCDEF"};
312 [ + - + - ]: 1 : BOOST_REQUIRE_EQUAL(valid_hex_64.size(), 2 + 64); // 0x prefix and 64 hex digits
313 [ + - + - : 2 : BOOST_CHECK_EQUAL(uint256::FromUserHex(valid_hex_64.substr(2)).value().ToString(), ToLower(valid_hex_64.substr(2)));
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314 [ + - + - : 2 : BOOST_CHECK_EQUAL(uint256::FromUserHex(valid_hex_64.substr(0)).value().ToString(), ToLower(valid_hex_64.substr(2)));
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315 : :
316 [ + - + - : 2 : BOOST_CHECK(!uint256::FromUserHex("0x0 ")); // no spaces at end,
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317 [ + - + - : 2 : BOOST_CHECK(!uint256::FromUserHex(" 0x0")); // or beginning,
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318 [ + - + - : 2 : BOOST_CHECK(!uint256::FromUserHex("0x 0")); // or middle,
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319 [ + - + - : 2 : BOOST_CHECK(!uint256::FromUserHex(" ")); // etc.
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320 [ + - + - : 2 : BOOST_CHECK(!uint256::FromUserHex("0x0ga")); // invalid character
+ - + - ]
321 [ + - + - : 2 : BOOST_CHECK(!uint256::FromUserHex("x0")); // broken prefix
+ - + - ]
322 [ + - + - : 2 : BOOST_CHECK(!uint256::FromUserHex("0x0x00")); // two prefixes not allowed
+ - + - ]
323 [ + - + - : 3 : BOOST_CHECK(!uint256::FromUserHex(valid_hex_64.substr(2) + "0")); // 1 hex digit too many
+ - + - +
- ]
324 [ + - + - : 2 : BOOST_CHECK(!uint256::FromUserHex(valid_hex_64 + "a")); // 1 hex digit too many
+ - + - +
- ]
325 [ + - + - : 2 : BOOST_CHECK(!uint256::FromUserHex(valid_hex_64 + " ")); // whitespace after max length
+ - + - +
- ]
326 [ + - + - : 2 : BOOST_CHECK(!uint256::FromUserHex(valid_hex_64 + "z")); // invalid character after max length
+ - + - ]
327 : 1 : }
328 : :
329 [ + - + - : 7 : BOOST_AUTO_TEST_CASE( check_ONE )
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- ]
330 : : {
331 : 1 : uint256 one = uint256{"0000000000000000000000000000000000000000000000000000000000000001"};
332 [ + - ]: 1 : BOOST_CHECK_EQUAL(one, uint256::ONE);
333 : 1 : }
334 : :
335 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(FromHex_vs_uint256)
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- ]
336 : : {
337 : 1 : auto runtime_uint{uint256::FromHex("4A5E1E4BAAB89F3A32518A88C31BC87F618f76673e2cc77ab2127b7afdeda33b")};
338 : 1 : constexpr uint256 consteval_uint{ "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"};
339 [ + - ]: 1 : BOOST_CHECK_EQUAL(consteval_uint, runtime_uint);
340 : 1 : }
341 : :
342 : : BOOST_AUTO_TEST_SUITE_END()
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