forked from bitcoin/bitcoin
-
Notifications
You must be signed in to change notification settings - Fork 1.2k
/
transaction_tests.cpp
477 lines (416 loc) · 20.7 KB
/
transaction_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
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
// 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 <test/data/tx_invalid.json.h>
#include <test/data/tx_valid.json.h>
#include <test/util/setup_common.h>
#include <checkqueue.h>
#include <clientversion.h>
#include <consensus/tx_check.h>
#include <consensus/validation.h>
#include <core_io.h>
#include <key.h>
#include <policy/policy.h>
#include <policy/settings.h>
#include <script/script.h>
#include <script/script_error.h>
#include <script/signingprovider.h>
#include <streams.h>
#include <test/util/transaction_utils.h>
#include <util/strencodings.h>
#include <validation.h>
#include <functional>
#include <map>
#include <string>
#include <boost/test/unit_test.hpp>
#include <univalue.h>
// In script_tests.cpp
extern UniValue read_json(const std::string& jsondata);
static std::map<std::string, unsigned int> mapFlagNames = {
{std::string("NONE"), (unsigned int) SCRIPT_VERIFY_NONE},
{std::string("P2SH"), (unsigned int) SCRIPT_VERIFY_P2SH},
{std::string("STRICTENC"), (unsigned int) SCRIPT_VERIFY_STRICTENC},
{std::string("DERSIG"), (unsigned int) SCRIPT_VERIFY_DERSIG},
{std::string("LOW_S"), (unsigned int) SCRIPT_VERIFY_LOW_S},
{std::string("SIGPUSHONLY"), (unsigned int) SCRIPT_VERIFY_SIGPUSHONLY},
{std::string("MINIMALDATA"), (unsigned int) SCRIPT_VERIFY_MINIMALDATA},
{std::string("NULLDUMMY"), (unsigned int) SCRIPT_VERIFY_NULLDUMMY},
{std::string("DISCOURAGE_UPGRADABLE_NOPS"), (unsigned int) SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS},
{std::string("CLEANSTACK"), (unsigned int) SCRIPT_VERIFY_CLEANSTACK},
{std::string("NULLFAIL"), (unsigned int) SCRIPT_VERIFY_NULLFAIL},
{std::string("CHECKLOCKTIMEVERIFY"), (unsigned int) SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY},
{std::string("CHECKSEQUENCEVERIFY"), (unsigned int) SCRIPT_VERIFY_CHECKSEQUENCEVERIFY},
{std::string("DIP0020_OPCODES"), (unsigned int) SCRIPT_ENABLE_DIP0020_OPCODES},
{std::string("CONST_SCRIPTCODE"), (unsigned int)SCRIPT_VERIFY_CONST_SCRIPTCODE},
};
unsigned int ParseScriptFlags(std::string strFlags)
{
if (strFlags.empty()) {
return 0;
}
unsigned int flags = 0;
std::vector<std::string> words = SplitString(strFlags, ',');
for (const std::string& word : words)
{
if (!mapFlagNames.count(word))
BOOST_ERROR("Bad test: unknown verification flag '" << word << "'");
flags |= mapFlagNames[word];
}
return flags;
}
std::string FormatScriptFlags(unsigned int flags)
{
if (flags == 0) {
return "";
}
std::string ret;
std::map<std::string, unsigned int>::const_iterator it = mapFlagNames.begin();
while (it != mapFlagNames.end()) {
if (flags & it->second) {
ret += it->first + ",";
}
it++;
}
return ret.substr(0, ret.size() - 1);
}
BOOST_FIXTURE_TEST_SUITE(transaction_tests, BasicTestingSetup)
BOOST_AUTO_TEST_CASE(tx_valid)
{
// Read tests from test/data/tx_valid.json
// Format is an array of arrays
// Inner arrays are either [ "comment" ]
// or [[[prevout hash, prevout index, prevout scriptPubKey], [input 2], ...],"], serializedTransaction, verifyFlags
// ... where all scripts are stringified scripts.
//
// verifyFlags is a comma separated list of script verification flags to apply, or "NONE"
UniValue tests = read_json(std::string(json_tests::tx_valid, json_tests::tx_valid + sizeof(json_tests::tx_valid)));
ScriptError err;
for (unsigned int idx = 0; idx < tests.size(); idx++) {
UniValue test = tests[idx];
std::string strTest = test.write();
if (test[0].isArray())
{
if (test.size() != 3 || !test[1].isStr() || !test[2].isStr())
{
BOOST_ERROR("Bad test: " << strTest);
continue;
}
std::map<COutPoint, CScript> mapprevOutScriptPubKeys;
UniValue inputs = test[0].get_array();
bool fValid = true;
for (unsigned int inpIdx = 0; inpIdx < inputs.size(); inpIdx++) {
const UniValue& input = inputs[inpIdx];
if (!input.isArray()) {
fValid = false;
break;
}
UniValue vinput = input.get_array();
if (vinput.size() != 3)
{
fValid = false;
break;
}
mapprevOutScriptPubKeys[COutPoint(uint256S(vinput[0].get_str()), vinput[1].get_int())] = ParseScript(vinput[2].get_str());
}
if (!fValid)
{
BOOST_ERROR("Bad test: " << strTest);
continue;
}
std::string transaction = test[1].get_str();
CDataStream stream(ParseHex(transaction), SER_NETWORK, PROTOCOL_VERSION);
CTransaction tx(deserialize, stream);
TxValidationState state;
BOOST_CHECK_MESSAGE(CheckTransaction(tx, state), strTest);
BOOST_CHECK(state.IsValid());
PrecomputedTransactionData txdata(tx);
for (unsigned int i = 0; i < tx.vin.size(); i++)
{
if (!mapprevOutScriptPubKeys.count(tx.vin[i].prevout))
{
BOOST_ERROR("Bad test: " << strTest);
break;
}
CAmount amount = 0;
unsigned int verify_flags = ParseScriptFlags(test[2].get_str());
BOOST_CHECK_MESSAGE(VerifyScript(tx.vin[i].scriptSig, mapprevOutScriptPubKeys[tx.vin[i].prevout],
verify_flags, TransactionSignatureChecker(&tx, i, amount, txdata), &err),
strTest);
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
}
}
}
}
BOOST_AUTO_TEST_CASE(tx_invalid)
{
// Read tests from test/data/tx_invalid.json
// Format is an array of arrays
// Inner arrays are either [ "comment" ]
// or [[[prevout hash, prevout index, prevout scriptPubKey], [input 2], ...],"], serializedTransaction, verifyFlags
// ... where all scripts are stringified scripts.
//
// verifyFlags is a comma separated list of script verification flags to apply, or "NONE"
UniValue tests = read_json(std::string(json_tests::tx_invalid, json_tests::tx_invalid + sizeof(json_tests::tx_invalid)));
// Initialize to SCRIPT_ERR_OK. The tests expect err to be changed to a
// value other than SCRIPT_ERR_OK.
ScriptError err = SCRIPT_ERR_OK;
for (unsigned int idx = 0; idx < tests.size(); idx++) {
UniValue test = tests[idx];
std::string strTest = test.write();
if (test[0].isArray())
{
if (test.size() != 3 || !test[1].isStr() || !test[2].isStr())
{
BOOST_ERROR("Bad test: " << strTest);
continue;
}
std::map<COutPoint, CScript> mapprevOutScriptPubKeys;
UniValue inputs = test[0].get_array();
bool fValid = true;
for (unsigned int inpIdx = 0; inpIdx < inputs.size(); inpIdx++) {
const UniValue& input = inputs[inpIdx];
if (!input.isArray()) {
fValid = false;
break;
}
UniValue vinput = input.get_array();
if (vinput.size() != 3)
{
fValid = false;
break;
}
mapprevOutScriptPubKeys[COutPoint(uint256S(vinput[0].get_str()), vinput[1].get_int())] = ParseScript(vinput[2].get_str());
}
if (!fValid)
{
BOOST_ERROR("Bad test: " << strTest);
continue;
}
std::string transaction = test[1].get_str();
CDataStream stream(ParseHex(transaction), SER_NETWORK, PROTOCOL_VERSION);
CTransaction tx(deserialize, stream);
TxValidationState state;
fValid = CheckTransaction(tx, state) && state.IsValid();
PrecomputedTransactionData txdata(tx);
for (unsigned int i = 0; i < tx.vin.size() && fValid; i++)
{
if (!mapprevOutScriptPubKeys.count(tx.vin[i].prevout))
{
BOOST_ERROR("Bad test: " << strTest);
break;
}
unsigned int verify_flags = ParseScriptFlags(test[2].get_str());
CAmount amount = 0;
fValid = VerifyScript(tx.vin[i].scriptSig, mapprevOutScriptPubKeys[tx.vin[i].prevout],
verify_flags, TransactionSignatureChecker(&tx, i, amount, txdata), &err);
}
BOOST_CHECK_MESSAGE(!fValid, strTest);
BOOST_CHECK_MESSAGE(err != SCRIPT_ERR_OK, ScriptErrorString(err));
}
}
}
BOOST_AUTO_TEST_CASE(basic_transaction_tests)
{
// Random real transaction (e2769b09e784f32f62ef849763d4f45b98e07ba658647343b915ff832b110436)
unsigned char ch[] = {0x01, 0x00, 0x00, 0x00, 0x01, 0x6b, 0xff, 0x7f, 0xcd, 0x4f, 0x85, 0x65, 0xef, 0x40, 0x6d, 0xd5, 0xd6, 0x3d, 0x4f, 0xf9, 0x4f, 0x31, 0x8f, 0xe8, 0x20, 0x27, 0xfd, 0x4d, 0xc4, 0x51, 0xb0, 0x44, 0x74, 0x01, 0x9f, 0x74, 0xb4, 0x00, 0x00, 0x00, 0x00, 0x8c, 0x49, 0x30, 0x46, 0x02, 0x21, 0x00, 0xda, 0x0d, 0xc6, 0xae, 0xce, 0xfe, 0x1e, 0x06, 0xef, 0xdf, 0x05, 0x77, 0x37, 0x57, 0xde, 0xb1, 0x68, 0x82, 0x09, 0x30, 0xe3, 0xb0, 0xd0, 0x3f, 0x46, 0xf5, 0xfc, 0xf1, 0x50, 0xbf, 0x99, 0x0c, 0x02, 0x21, 0x00, 0xd2, 0x5b, 0x5c, 0x87, 0x04, 0x00, 0x76, 0xe4, 0xf2, 0x53, 0xf8, 0x26, 0x2e, 0x76, 0x3e, 0x2d, 0xd5, 0x1e, 0x7f, 0xf0, 0xbe, 0x15, 0x77, 0x27, 0xc4, 0xbc, 0x42, 0x80, 0x7f, 0x17, 0xbd, 0x39, 0x01, 0x41, 0x04, 0xe6, 0xc2, 0x6e, 0xf6, 0x7d, 0xc6, 0x10, 0xd2, 0xcd, 0x19, 0x24, 0x84, 0x78, 0x9a, 0x6c, 0xf9, 0xae, 0xa9, 0x93, 0x0b, 0x94, 0x4b, 0x7e, 0x2d, 0xb5, 0x34, 0x2b, 0x9d, 0x9e, 0x5b, 0x9f, 0xf7, 0x9a, 0xff, 0x9a, 0x2e, 0xe1, 0x97, 0x8d, 0xd7, 0xfd, 0x01, 0xdf, 0xc5, 0x22, 0xee, 0x02, 0x28, 0x3d, 0x3b, 0x06, 0xa9, 0xd0, 0x3a, 0xcf, 0x80, 0x96, 0x96, 0x8d, 0x7d, 0xbb, 0x0f, 0x91, 0x78, 0xff, 0xff, 0xff, 0xff, 0x02, 0x8b, 0xa7, 0x94, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x19, 0x76, 0xa9, 0x14, 0xba, 0xde, 0xec, 0xfd, 0xef, 0x05, 0x07, 0x24, 0x7f, 0xc8, 0xf7, 0x42, 0x41, 0xd7, 0x3b, 0xc0, 0x39, 0x97, 0x2d, 0x7b, 0x88, 0xac, 0x40, 0x94, 0xa8, 0x02, 0x00, 0x00, 0x00, 0x00, 0x19, 0x76, 0xa9, 0x14, 0xc1, 0x09, 0x32, 0x48, 0x3f, 0xec, 0x93, 0xed, 0x51, 0xf5, 0xfe, 0x95, 0xe7, 0x25, 0x59, 0xf2, 0xcc, 0x70, 0x43, 0xf9, 0x88, 0xac, 0x00, 0x00, 0x00, 0x00, 0x00};
std::vector<unsigned char> vch(ch, ch + sizeof(ch) -1);
CDataStream stream(vch, SER_DISK, CLIENT_VERSION);
CMutableTransaction tx;
stream >> tx;
TxValidationState state;
BOOST_CHECK_MESSAGE(CheckTransaction(CTransaction(tx), state) && state.IsValid(), "Simple deserialized transaction should be valid.");
// Check that duplicate txins fail
tx.vin.push_back(tx.vin[0]);
BOOST_CHECK_MESSAGE(!CheckTransaction(CTransaction(tx), state) || !state.IsValid(), "Transaction with duplicate txins should be invalid.");
}
BOOST_AUTO_TEST_CASE(test_Get)
{
FillableSigningProvider keystore;
CCoinsView coinsDummy;
CCoinsViewCache coins(&coinsDummy);
std::vector<CMutableTransaction> dummyTransactions =
SetupDummyInputs(keystore, coins, {11*CENT, 50*CENT, 21*CENT, 22*CENT});
CMutableTransaction t1;
t1.vin.resize(3);
t1.vin[0].prevout.hash = dummyTransactions[0].GetHash();
t1.vin[0].prevout.n = 1;
t1.vin[0].scriptSig << std::vector<unsigned char>(65, 0);
t1.vin[1].prevout.hash = dummyTransactions[1].GetHash();
t1.vin[1].prevout.n = 0;
t1.vin[1].scriptSig << std::vector<unsigned char>(65, 0) << std::vector<unsigned char>(33, 4);
t1.vin[2].prevout.hash = dummyTransactions[1].GetHash();
t1.vin[2].prevout.n = 1;
t1.vin[2].scriptSig << std::vector<unsigned char>(65, 0) << std::vector<unsigned char>(33, 4);
t1.vout.resize(2);
t1.vout[0].nValue = 90*CENT;
t1.vout[0].scriptPubKey << OP_1;
BOOST_CHECK(AreInputsStandard(CTransaction(t1), coins));
}
BOOST_AUTO_TEST_CASE(test_IsStandard)
{
LOCK(cs_main);
FillableSigningProvider keystore;
CCoinsView coinsDummy;
CCoinsViewCache coins(&coinsDummy);
std::vector<CMutableTransaction> dummyTransactions =
SetupDummyInputs(keystore, coins, {11*CENT, 50*CENT, 21*CENT, 22*CENT});
CMutableTransaction t;
t.vin.resize(1);
t.vin[0].prevout.hash = dummyTransactions[0].GetHash();
t.vin[0].prevout.n = 1;
t.vin[0].scriptSig << std::vector<unsigned char>(65, 0);
t.vout.resize(1);
t.vout[0].nValue = 90*CENT;
CKey key;
key.MakeNewKey(true);
t.vout[0].scriptPubKey = GetScriptForDestination(PKHash(key.GetPubKey()));
std::string reason;
BOOST_CHECK(IsStandardTx(CTransaction(t), reason));
// Check dust with default relay fee:
CAmount nDustThreshold = 182 * dustRelayFee.GetFeePerK()/1000;
BOOST_CHECK_EQUAL(nDustThreshold, 546);
// dust:
t.vout[0].nValue = nDustThreshold - 1;
reason.clear();
BOOST_CHECK(!IsStandardTx(CTransaction(t), reason));
BOOST_CHECK_EQUAL(reason, "dust");
// not dust:
t.vout[0].nValue = nDustThreshold;
BOOST_CHECK(IsStandardTx(CTransaction(t), reason));
// Disallowed nVersion
t.nVersion = -1;
reason.clear();
BOOST_CHECK(!IsStandardTx(CTransaction(t), reason));
BOOST_CHECK_EQUAL(reason, "version");
t.nVersion = 0;
reason.clear();
BOOST_CHECK(!IsStandardTx(CTransaction(t), reason));
BOOST_CHECK_EQUAL(reason, "version");
t.nVersion = 4;
reason.clear();
BOOST_CHECK(!IsStandardTx(CTransaction(t), reason));
BOOST_CHECK_EQUAL(reason, "version");
// Allowed nVersion
t.nVersion = 1;
BOOST_CHECK(IsStandardTx(CTransaction(t), reason));
t.nVersion = 2;
BOOST_CHECK(IsStandardTx(CTransaction(t), reason));
t.nVersion = 3;
BOOST_CHECK(IsStandardTx(CTransaction(t), reason));
// Check dust with odd relay fee to verify rounding:
// nDustThreshold = 182 * 3702 / 1000
minRelayTxFee = CFeeRate(3702);
// dust:
t.vout[0].nValue = 546 - 1;
reason.clear();
BOOST_CHECK(!IsStandardTx(CTransaction(t), reason));
BOOST_CHECK_EQUAL(reason, "dust");
// not dust:
t.vout[0].nValue = 546;
BOOST_CHECK(IsStandardTx(CTransaction(t), reason));
minRelayTxFee = CFeeRate(DUST_RELAY_TX_FEE);
t.vout[0].scriptPubKey = CScript() << OP_1;
reason.clear();
BOOST_CHECK(!IsStandardTx(CTransaction(t), reason));
BOOST_CHECK_EQUAL(reason, "scriptpubkey");
// MAX_OP_RETURN_RELAY-byte TxoutType::NULL_DATA (standard)
t.vout[0].scriptPubKey = CScript() << OP_RETURN << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef3804678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38");
BOOST_CHECK_EQUAL(MAX_OP_RETURN_RELAY, t.vout[0].scriptPubKey.size());
BOOST_CHECK(IsStandardTx(CTransaction(t), reason));
// MAX_OP_RETURN_RELAY+1-byte TxoutType::NULL_DATA (non-standard)
t.vout[0].scriptPubKey = CScript() << OP_RETURN << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef3804678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef3800");
BOOST_CHECK_EQUAL(MAX_OP_RETURN_RELAY + 1, t.vout[0].scriptPubKey.size());
reason.clear();
BOOST_CHECK(!IsStandardTx(CTransaction(t), reason));
BOOST_CHECK_EQUAL(reason, "scriptpubkey");
// Data payload can be encoded in any way...
t.vout[0].scriptPubKey = CScript() << OP_RETURN << ParseHex("");
BOOST_CHECK(IsStandardTx(CTransaction(t), reason));
t.vout[0].scriptPubKey = CScript() << OP_RETURN << ParseHex("00") << ParseHex("01");
BOOST_CHECK(IsStandardTx(CTransaction(t), reason));
// OP_RESERVED *is* considered to be a PUSHDATA type opcode by IsPushOnly()!
t.vout[0].scriptPubKey = CScript() << OP_RETURN << OP_RESERVED << -1 << 0 << ParseHex("01") << 2 << 3 << 4 << 5 << 6 << 7 << 8 << 9 << 10 << 11 << 12 << 13 << 14 << 15 << 16;
BOOST_CHECK(IsStandardTx(CTransaction(t), reason));
t.vout[0].scriptPubKey = CScript() << OP_RETURN << 0 << ParseHex("01") << 2 << ParseHex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
BOOST_CHECK(IsStandardTx(CTransaction(t), reason));
// ...so long as it only contains PUSHDATA's
t.vout[0].scriptPubKey = CScript() << OP_RETURN << OP_RETURN;
reason.clear();
BOOST_CHECK(!IsStandardTx(CTransaction(t), reason));
BOOST_CHECK_EQUAL(reason, "scriptpubkey");
// TxoutType::NULL_DATA w/o PUSHDATA
t.vout.resize(1);
t.vout[0].scriptPubKey = CScript() << OP_RETURN;
BOOST_CHECK(IsStandardTx(CTransaction(t), reason));
// Only one TxoutType::NULL_DATA permitted in all cases
t.vout.resize(2);
t.vout[0].scriptPubKey = CScript() << OP_RETURN << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38");
t.vout[0].nValue = 0;
t.vout[1].scriptPubKey = CScript() << OP_RETURN << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38");
t.vout[1].nValue = 0;
reason.clear();
BOOST_CHECK(!IsStandardTx(CTransaction(t), reason));
BOOST_CHECK_EQUAL(reason, "multi-op-return");
t.vout[0].scriptPubKey = CScript() << OP_RETURN << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38");
t.vout[1].scriptPubKey = CScript() << OP_RETURN;
reason.clear();
BOOST_CHECK(!IsStandardTx(CTransaction(t), reason));
BOOST_CHECK_EQUAL(reason, "multi-op-return");
t.vout[0].scriptPubKey = CScript() << OP_RETURN;
t.vout[1].scriptPubKey = CScript() << OP_RETURN;
reason.clear();
BOOST_CHECK(!IsStandardTx(CTransaction(t), reason));
BOOST_CHECK_EQUAL(reason, "multi-op-return");
// Check large scriptSig (non-standard if size is >1650 bytes)
t.vout.resize(1);
t.vout[0].nValue = MAX_MONEY;
t.vout[0].scriptPubKey = GetScriptForDestination(PKHash(key.GetPubKey()));
// OP_PUSHDATA2 with len (3 bytes) + data (1647 bytes) = 1650 bytes
t.vin[0].scriptSig = CScript() << std::vector<unsigned char>(1647, 0); // 1650
BOOST_CHECK(IsStandardTx(CTransaction(t), reason));
t.vin[0].scriptSig = CScript() << std::vector<unsigned char>(1648, 0); // 1651
reason.clear();
BOOST_CHECK(!IsStandardTx(CTransaction(t), reason));
BOOST_CHECK_EQUAL(reason, "scriptsig-size");
// Check scriptSig format (non-standard if there are any other ops than just PUSHs)
t.vin[0].scriptSig = CScript()
<< OP_TRUE << OP_0 << OP_1NEGATE << OP_16 // OP_n (single byte pushes: n = 1, 0, -1, 16)
<< std::vector<unsigned char>(75, 0) // OP_PUSHx [...x bytes...]
<< std::vector<unsigned char>(235, 0) // OP_PUSHDATA1 x [...x bytes...]
<< std::vector<unsigned char>(1234, 0) // OP_PUSHDATA2 x [...x bytes...]
<< OP_9;
BOOST_CHECK(IsStandardTx(CTransaction(t), reason));
const std::vector<unsigned char> non_push_ops = { // arbitrary set of non-push operations
OP_NOP, OP_VERIFY, OP_IF, OP_ROT, OP_3DUP, OP_SIZE, OP_EQUAL, OP_ADD, OP_SUB,
OP_HASH256, OP_CODESEPARATOR, OP_CHECKSIG, OP_CHECKLOCKTIMEVERIFY };
CScript::const_iterator pc = t.vin[0].scriptSig.begin();
while (pc < t.vin[0].scriptSig.end()) {
opcodetype opcode;
CScript::const_iterator prev_pc = pc;
t.vin[0].scriptSig.GetOp(pc, opcode); // advance to next op
// for the sake of simplicity, we only replace single-byte push operations
if (opcode >= 1 && opcode <= OP_PUSHDATA4)
continue;
int index = prev_pc - t.vin[0].scriptSig.begin();
unsigned char orig_op = *prev_pc; // save op
// replace current push-op with each non-push-op
for (auto op : non_push_ops) {
t.vin[0].scriptSig[index] = op;
BOOST_CHECK(!IsStandardTx(CTransaction(t), reason));
BOOST_CHECK_EQUAL(reason, "scriptsig-not-pushonly");
}
t.vin[0].scriptSig[index] = orig_op; // restore op
BOOST_CHECK(IsStandardTx(CTransaction(t), reason));
}
// Check bare multisig (standard if policy flag fIsBareMultisigStd is set)
fIsBareMultisigStd = true;
t.vout[0].scriptPubKey = GetScriptForMultisig(1, {key.GetPubKey()}); // simple 1-of-1
t.vin[0].scriptSig = CScript() << std::vector<unsigned char>(65, 0);
BOOST_CHECK(IsStandardTx(CTransaction(t), reason));
fIsBareMultisigStd = false;
reason.clear();
BOOST_CHECK(!IsStandardTx(CTransaction(t), reason));
BOOST_CHECK_EQUAL(reason, "bare-multisig");
fIsBareMultisigStd = DEFAULT_PERMIT_BAREMULTISIG;
}
BOOST_AUTO_TEST_SUITE_END()