forked from Bitcoin-ABC/bitcoin-abc
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathmempool_tests.cpp
1143 lines (1006 loc) · 46.3 KB
/
mempool_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
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
// Copyright (c) 2011-2019 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 <txmempool.h>
#include <policy/settings.h>
#include <reverse_iterator.h>
#include <util/system.h>
#include <util/time.h>
#include <test/util/setup_common.h>
#include <boost/test/unit_test.hpp>
#include <algorithm>
#include <vector>
BOOST_FIXTURE_TEST_SUITE(mempool_tests, TestingSetup)
BOOST_AUTO_TEST_CASE(TestPackageAccounting) {
CTxMemPool testPool;
LOCK2(cs_main, testPool.cs);
TestMemPoolEntryHelper entry;
CMutableTransaction parentOfAll;
std::vector<CTxIn> outpoints;
const size_t maxOutputs = 3;
// Construct a parent for the rest of the chain
parentOfAll.vin.resize(1);
parentOfAll.vin[0].scriptSig = CScript();
// Give us a couple outpoints so we can spend them
for (size_t i = 0; i < maxOutputs; i++) {
parentOfAll.vout.emplace_back(10 * SATOSHI, CScript() << OP_TRUE);
}
TxId parentOfAllId = parentOfAll.GetId();
testPool.addUnchecked(entry.SigOpCount(0).FromTx(parentOfAll));
// Add some outpoints to the tracking vector
for (size_t i = 0; i < maxOutputs; i++) {
outpoints.emplace_back(COutPoint(parentOfAllId, i));
}
Amount totalFee = Amount::zero();
size_t totalSize = CTransaction(parentOfAll).GetTotalSize();
size_t totalVirtualSize = totalSize;
int64_t totalSigOpCount = 0;
// Generate 100 transactions
for (size_t totalTransactions = 0; totalTransactions < 100;
totalTransactions++) {
CMutableTransaction tx;
uint64_t minAncestors = std::numeric_limits<size_t>::max();
uint64_t maxAncestors = 0;
Amount minFees = MAX_MONEY;
Amount maxFees = Amount::zero();
uint64_t minSize = std::numeric_limits<size_t>::max();
uint64_t maxSize = 0;
uint64_t minVirtualSize = std::numeric_limits<size_t>::max();
uint64_t maxVirtualSize = 0;
int64_t minSigOpCount = std::numeric_limits<int64_t>::max();
int64_t maxSigOpCount = 0;
// Consume random inputs, but make sure we don't consume more than
// available
for (size_t input = std::min(InsecureRandRange(maxOutputs) + 1,
uint64_t(outpoints.size()));
input > 0; input--) {
std::swap(outpoints[InsecureRandRange(outpoints.size())],
outpoints.back());
tx.vin.emplace_back(outpoints.back());
outpoints.pop_back();
// We don't know exactly how many ancestors this transaction has
// due to possible duplicates. Calculate a valid range based on
// parents.
CTxMemPoolEntry parent =
*testPool.mapTx.find(tx.vin.back().prevout.GetTxId());
minAncestors =
std::min(minAncestors, parent.GetCountWithAncestors());
maxAncestors += parent.GetCountWithAncestors();
minFees = std::min(minFees, parent.GetModFeesWithAncestors());
maxFees += parent.GetModFeesWithAncestors();
minSize = std::min(minSize, parent.GetSizeWithAncestors());
maxSize += parent.GetSizeWithAncestors();
minVirtualSize =
std::min(minSize, parent.GetVirtualSizeWithAncestors());
maxVirtualSize += parent.GetVirtualSizeWithAncestors();
minSigOpCount =
std::min(minSigOpCount, parent.GetSigOpCountWithAncestors());
maxSigOpCount += parent.GetSigOpCountWithAncestors();
}
// Produce random number of outputs
for (size_t output = InsecureRandRange(maxOutputs) + 1; output > 0;
output--) {
tx.vout.emplace_back(10 * SATOSHI, CScript() << OP_TRUE);
}
TxId curId = tx.GetId();
// Record the outputs
for (size_t output = tx.vout.size(); output > 0; output--) {
outpoints.emplace_back(COutPoint(curId, output));
}
Amount randFee = int64_t(InsecureRandRange(300)) * SATOSHI;
int randSigOpCount = InsecureRandRange(5);
testPool.addUnchecked(
entry.Fee(randFee).SigOpCount(randSigOpCount).FromTx(tx));
// Add this transaction to the totals.
minAncestors += 1;
maxAncestors += 1;
minFees += randFee;
maxFees += randFee;
minSize += CTransaction(tx).GetTotalSize();
maxSize += CTransaction(tx).GetTotalSize();
// virtualsize is a nonlinear function of its arguments, so we can't
// make as strong guarantees about its range; but assuming virtualsize
// is monotonically increasing in each argument, we can say the
// following:
minVirtualSize += 0;
maxVirtualSize += GetVirtualTransactionSize(
CTransaction(tx).GetTotalSize(), randSigOpCount);
minSigOpCount += randSigOpCount;
maxSigOpCount += randSigOpCount;
// Calculate overall values
totalFee += randFee;
totalSize += CTransaction(tx).GetTotalSize();
totalVirtualSize += GetVirtualTransactionSize(
CTransaction(tx).GetTotalSize(), randSigOpCount);
totalSigOpCount += randSigOpCount;
CTxMemPoolEntry parentEntry = *testPool.mapTx.find(parentOfAllId);
CTxMemPoolEntry latestEntry = *testPool.mapTx.find(curId);
// Based on size/sigops ranges we can compute more strict bounds for the
// virtual size ranges/totals, assuming virtualsize is monotonic in each
// argument.
uint64_t minVirtualSize_strict =
GetVirtualTransactionSize(minSize, minSigOpCount);
uint64_t maxVirtualSize_strict =
GetVirtualTransactionSize(maxSize, maxSigOpCount);
uint64_t totalVirtualSize_strict =
GetVirtualTransactionSize(totalSize, totalSigOpCount);
// these are as-good or better than the earlier estimations.
BOOST_CHECK(minVirtualSize_strict >= minVirtualSize);
BOOST_CHECK(maxVirtualSize_strict <= maxVirtualSize);
BOOST_CHECK(totalVirtualSize_strict <= totalVirtualSize);
// Ensure values are within the expected ranges
BOOST_CHECK(latestEntry.GetCountWithAncestors() >= minAncestors);
BOOST_CHECK(latestEntry.GetCountWithAncestors() <= maxAncestors);
BOOST_CHECK(latestEntry.GetSizeWithAncestors() >= minSize);
BOOST_CHECK(latestEntry.GetSizeWithAncestors() <= maxSize);
BOOST_CHECK(latestEntry.GetVirtualSizeWithAncestors() >=
minVirtualSize_strict);
BOOST_CHECK(latestEntry.GetVirtualSizeWithAncestors() <=
maxVirtualSize_strict);
BOOST_CHECK(latestEntry.GetSigOpCountWithAncestors() >= minSigOpCount);
BOOST_CHECK(latestEntry.GetSigOpCountWithAncestors() <= maxSigOpCount);
BOOST_CHECK(latestEntry.GetModFeesWithAncestors() >= minFees);
BOOST_CHECK(latestEntry.GetModFeesWithAncestors() <= maxFees);
BOOST_CHECK_EQUAL(parentEntry.GetCountWithDescendants(),
testPool.mapTx.size());
BOOST_CHECK_EQUAL(parentEntry.GetSizeWithDescendants(), totalSize);
BOOST_CHECK_EQUAL(parentEntry.GetVirtualSizeWithDescendants(),
totalVirtualSize_strict);
BOOST_CHECK_EQUAL(parentEntry.GetModFeesWithDescendants(), totalFee);
BOOST_CHECK_EQUAL(parentEntry.GetSigOpCountWithDescendants(),
totalSigOpCount);
}
}
static constexpr auto REMOVAL_REASON_DUMMY = MemPoolRemovalReason::REPLACED;
BOOST_AUTO_TEST_CASE(MempoolRemoveTest) {
// Test CTxMemPool::remove functionality
TestMemPoolEntryHelper entry;
// Parent transaction with three children, and three grand-children:
CMutableTransaction txParent;
txParent.vin.resize(1);
txParent.vin[0].scriptSig = CScript() << OP_11;
txParent.vout.resize(3);
for (int i = 0; i < 3; i++) {
txParent.vout[i].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
txParent.vout[i].nValue = 33000 * SATOSHI;
}
CMutableTransaction txChild[3];
for (int i = 0; i < 3; i++) {
txChild[i].vin.resize(1);
txChild[i].vin[0].scriptSig = CScript() << OP_11;
txChild[i].vin[0].prevout = COutPoint(txParent.GetId(), i);
txChild[i].vout.resize(1);
txChild[i].vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
txChild[i].vout[0].nValue = 11000 * SATOSHI;
}
CMutableTransaction txGrandChild[3];
for (int i = 0; i < 3; i++) {
txGrandChild[i].vin.resize(1);
txGrandChild[i].vin[0].scriptSig = CScript() << OP_11;
txGrandChild[i].vin[0].prevout = COutPoint(txChild[i].GetId(), 0);
txGrandChild[i].vout.resize(1);
txGrandChild[i].vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
txGrandChild[i].vout[0].nValue = 11000 * SATOSHI;
}
CTxMemPool testPool;
LOCK2(cs_main, testPool.cs);
// Nothing in pool, remove should do nothing:
unsigned int poolSize = testPool.size();
testPool.removeRecursive(CTransaction(txParent), REMOVAL_REASON_DUMMY);
BOOST_CHECK_EQUAL(testPool.size(), poolSize);
// Just the parent:
testPool.addUnchecked(entry.FromTx(txParent));
poolSize = testPool.size();
testPool.removeRecursive(CTransaction(txParent), REMOVAL_REASON_DUMMY);
BOOST_CHECK_EQUAL(testPool.size(), poolSize - 1);
// Parent, children, grandchildren:
testPool.addUnchecked(entry.FromTx(txParent));
for (int i = 0; i < 3; i++) {
testPool.addUnchecked(entry.FromTx(txChild[i]));
testPool.addUnchecked(entry.FromTx(txGrandChild[i]));
}
// Remove Child[0], GrandChild[0] should be removed:
poolSize = testPool.size();
testPool.removeRecursive(CTransaction(txChild[0]), REMOVAL_REASON_DUMMY);
BOOST_CHECK_EQUAL(testPool.size(), poolSize - 2);
// ... make sure grandchild and child are gone:
poolSize = testPool.size();
testPool.removeRecursive(CTransaction(txGrandChild[0]),
REMOVAL_REASON_DUMMY);
BOOST_CHECK_EQUAL(testPool.size(), poolSize);
poolSize = testPool.size();
testPool.removeRecursive(CTransaction(txChild[0]), REMOVAL_REASON_DUMMY);
BOOST_CHECK_EQUAL(testPool.size(), poolSize);
// Remove parent, all children/grandchildren should go:
poolSize = testPool.size();
testPool.removeRecursive(CTransaction(txParent), REMOVAL_REASON_DUMMY);
BOOST_CHECK_EQUAL(testPool.size(), poolSize - 5);
BOOST_CHECK_EQUAL(testPool.size(), 0UL);
// Add children and grandchildren, but NOT the parent (simulate the parent
// being in a block)
for (int i = 0; i < 3; i++) {
testPool.addUnchecked(entry.FromTx(txChild[i]));
testPool.addUnchecked(entry.FromTx(txGrandChild[i]));
}
// Now remove the parent, as might happen if a block-re-org occurs but the
// parent cannot be put into the mempool (maybe because it is non-standard):
poolSize = testPool.size();
testPool.removeRecursive(CTransaction(txParent), REMOVAL_REASON_DUMMY);
BOOST_CHECK_EQUAL(testPool.size(), poolSize - 6);
BOOST_CHECK_EQUAL(testPool.size(), 0UL);
}
BOOST_AUTO_TEST_CASE(MempoolClearTest) {
// Test CTxMemPool::clear functionality
TestMemPoolEntryHelper entry;
// Create a transaction
CMutableTransaction txParent;
txParent.vin.resize(1);
txParent.vin[0].scriptSig = CScript() << OP_11;
txParent.vout.resize(3);
for (int i = 0; i < 3; i++) {
txParent.vout[i].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
txParent.vout[i].nValue = 33000 * SATOSHI;
}
CTxMemPool testPool;
LOCK2(cs_main, testPool.cs);
// Nothing in pool, clear should do nothing:
testPool.clear();
BOOST_CHECK_EQUAL(testPool.size(), 0UL);
// Add the transaction
testPool.addUnchecked(entry.FromTx(txParent));
BOOST_CHECK_EQUAL(testPool.size(), 1UL);
BOOST_CHECK_EQUAL(testPool.mapTx.size(), 1UL);
BOOST_CHECK_EQUAL(testPool.mapNextTx.size(), 1UL);
BOOST_CHECK_EQUAL(testPool.vTxHashes.size(), 1UL);
// CTxMemPool's members should be empty after a clear
testPool.clear();
BOOST_CHECK_EQUAL(testPool.size(), 0UL);
BOOST_CHECK_EQUAL(testPool.mapTx.size(), 0UL);
BOOST_CHECK_EQUAL(testPool.mapNextTx.size(), 0UL);
BOOST_CHECK_EQUAL(testPool.vTxHashes.size(), 0UL);
}
template <typename name>
static void CheckSort(CTxMemPool &pool, std::vector<std::string> &sortedOrder,
const std::string &testcase)
EXCLUSIVE_LOCKS_REQUIRED(pool.cs) {
BOOST_CHECK_EQUAL(pool.size(), sortedOrder.size());
typename CTxMemPool::indexed_transaction_set::index<name>::type::iterator
it = pool.mapTx.get<name>().begin();
int count = 0;
for (; it != pool.mapTx.get<name>().end(); ++it, ++count) {
BOOST_CHECK_MESSAGE(it->GetTx().GetId().ToString() ==
sortedOrder[count],
it->GetTx().GetId().ToString()
<< " != " << sortedOrder[count] << " in test "
<< testcase << ":" << count);
}
}
BOOST_AUTO_TEST_CASE(MempoolIndexingTest) {
CTxMemPool pool;
LOCK2(cs_main, pool.cs);
TestMemPoolEntryHelper entry;
/**
* Remove the default nonzero sigops, since the below tests are focussing on
* fee-based ordering and involve some artificially very tiny 21-byte
* transactions without any inputs.
*/
entry.SigOpCount(0);
/* 3rd highest fee */
CMutableTransaction tx1 = CMutableTransaction();
tx1.vout.resize(1);
tx1.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx1.vout[0].nValue = 10 * COIN;
pool.addUnchecked(entry.Fee(10000 * SATOSHI).FromTx(tx1));
/* highest fee */
CMutableTransaction tx2 = CMutableTransaction();
tx2.vout.resize(1);
tx2.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx2.vout[0].nValue = 2 * COIN;
pool.addUnchecked(entry.Fee(20000 * SATOSHI).FromTx(tx2));
/* lowest fee */
CMutableTransaction tx3 = CMutableTransaction();
tx3.vout.resize(1);
tx3.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx3.vout[0].nValue = 5 * COIN;
pool.addUnchecked(entry.Fee(Amount::zero()).FromTx(tx3));
/* 2nd highest fee */
CMutableTransaction tx4 = CMutableTransaction();
tx4.vout.resize(1);
tx4.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx4.vout[0].nValue = 6 * COIN;
pool.addUnchecked(entry.Fee(15000 * SATOSHI).FromTx(tx4));
/* equal fee rate to tx1, but newer */
CMutableTransaction tx5 = CMutableTransaction();
tx5.vout.resize(1);
tx5.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx5.vout[0].nValue = 11 * COIN;
entry.nTime = 1;
pool.addUnchecked(entry.Fee(10000 * SATOSHI).FromTx(tx5));
BOOST_CHECK_EQUAL(pool.size(), 5UL);
std::vector<std::string> sortedOrder;
sortedOrder.resize(5);
sortedOrder[0] = tx3.GetId().ToString(); // 0
sortedOrder[1] = tx5.GetId().ToString(); // 10000
sortedOrder[2] = tx1.GetId().ToString(); // 10000
sortedOrder[3] = tx4.GetId().ToString(); // 15000
sortedOrder[4] = tx2.GetId().ToString(); // 20000
CheckSort<descendant_score>(pool, sortedOrder, "MempoolIndexingTest1");
/* low fee but with high fee child */
/* tx6 -> tx7 -> tx8, tx9 -> tx10 */
CMutableTransaction tx6 = CMutableTransaction();
tx6.vout.resize(1);
tx6.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx6.vout[0].nValue = 20 * COIN;
pool.addUnchecked(entry.Fee(Amount::zero()).FromTx(tx6));
BOOST_CHECK_EQUAL(pool.size(), 6UL);
// Check that at this point, tx6 is sorted low
sortedOrder.insert(sortedOrder.begin(), tx6.GetId().ToString());
CheckSort<descendant_score>(pool, sortedOrder, "MempoolIndexingTest2");
CTxMemPool::setEntries setAncestors;
setAncestors.insert(pool.mapTx.find(tx6.GetId()));
CMutableTransaction tx7 = CMutableTransaction();
tx7.vin.resize(1);
tx7.vin[0].prevout = COutPoint(tx6.GetId(), 0);
tx7.vin[0].scriptSig = CScript() << OP_11;
tx7.vout.resize(2);
tx7.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx7.vout[0].nValue = 10 * COIN;
tx7.vout[1].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx7.vout[1].nValue = 1 * COIN;
CTxMemPool::setEntries setAncestorsCalculated;
std::string dummy;
BOOST_CHECK_EQUAL(
pool.CalculateMemPoolAncestors(entry.Fee(2000000 * SATOSHI).FromTx(tx7),
setAncestorsCalculated, 100, 1000000,
1000, 1000000, dummy),
true);
BOOST_CHECK(setAncestorsCalculated == setAncestors);
pool.addUnchecked(entry.FromTx(tx7), setAncestors);
BOOST_CHECK_EQUAL(pool.size(), 7UL);
// Now tx6 should be sorted higher (high fee child): tx7, tx6, tx2, ...
sortedOrder.erase(sortedOrder.begin());
sortedOrder.push_back(tx6.GetId().ToString());
sortedOrder.push_back(tx7.GetId().ToString());
CheckSort<descendant_score>(pool, sortedOrder, "MempoolIndexingTest3");
/* low fee child of tx7 */
CMutableTransaction tx8 = CMutableTransaction();
tx8.vin.resize(1);
tx8.vin[0].prevout = COutPoint(tx7.GetId(), 0);
tx8.vin[0].scriptSig = CScript() << OP_11;
tx8.vout.resize(1);
tx8.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx8.vout[0].nValue = 10 * COIN;
setAncestors.insert(pool.mapTx.find(tx7.GetId()));
pool.addUnchecked(entry.Fee(Amount::zero()).Time(2).FromTx(tx8),
setAncestors);
// Now tx8 should be sorted low, but tx6/tx both high
sortedOrder.insert(sortedOrder.begin(), tx8.GetId().ToString());
CheckSort<descendant_score>(pool, sortedOrder, "MempoolIndexingTest4");
/* low fee child of tx7 */
CMutableTransaction tx9 = CMutableTransaction();
tx9.vin.resize(1);
tx9.vin[0].prevout = COutPoint(tx7.GetId(), 1);
tx9.vin[0].scriptSig = CScript() << OP_11;
tx9.vout.resize(1);
tx9.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx9.vout[0].nValue = 1 * COIN;
pool.addUnchecked(entry.Fee(Amount::zero()).Time(3).FromTx(tx9),
setAncestors);
// tx9 should be sorted low
BOOST_CHECK_EQUAL(pool.size(), 9UL);
sortedOrder.insert(sortedOrder.begin(), tx9.GetId().ToString());
CheckSort<descendant_score>(pool, sortedOrder, "MempoolIndexingTest5");
std::vector<std::string> snapshotOrder = sortedOrder;
setAncestors.insert(pool.mapTx.find(tx8.GetId()));
setAncestors.insert(pool.mapTx.find(tx9.GetId()));
/* tx10 depends on tx8 and tx9 and has a high fee*/
CMutableTransaction tx10 = CMutableTransaction();
tx10.vin.resize(2);
tx10.vin[0].prevout = COutPoint(tx8.GetId(), 0);
tx10.vin[0].scriptSig = CScript() << OP_11;
tx10.vin[1].prevout = COutPoint(tx9.GetId(), 0);
tx10.vin[1].scriptSig = CScript() << OP_11;
tx10.vout.resize(1);
tx10.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx10.vout[0].nValue = 10 * COIN;
setAncestorsCalculated.clear();
BOOST_CHECK_EQUAL(pool.CalculateMemPoolAncestors(
entry.Fee(200000 * SATOSHI).Time(4).FromTx(tx10),
setAncestorsCalculated, 100, 1000000, 1000, 1000000,
dummy),
true);
BOOST_CHECK(setAncestorsCalculated == setAncestors);
pool.addUnchecked(entry.FromTx(tx10), setAncestors);
/**
* tx8 and tx9 should both now be sorted higher
* Final order after tx10 is added:
*
* tx3 = 0 (1)
* tx5 = 10000 (1)
* tx1 = 10000 (1)
* tx4 = 15000 (1)
* tx2 = 20000 (1)
* tx9 = 200k (2 txs)
* tx8 = 200k (2 txs)
* tx10 = 200k (1 tx)
* tx6 = 2.2M (5 txs)
* tx7 = 2.2M (4 txs)
*/
// take out tx9, tx8 from the beginning
sortedOrder.erase(sortedOrder.begin(), sortedOrder.begin() + 2);
sortedOrder.insert(sortedOrder.begin() + 5, tx9.GetId().ToString());
sortedOrder.insert(sortedOrder.begin() + 6, tx8.GetId().ToString());
// tx10 is just before tx6
sortedOrder.insert(sortedOrder.begin() + 7, tx10.GetId().ToString());
CheckSort<descendant_score>(pool, sortedOrder, "MempoolIndexingTest6");
// there should be 10 transactions in the mempool
BOOST_CHECK_EQUAL(pool.size(), 10UL);
// Now try removing tx10 and verify the sort order returns to normal
pool.removeRecursive(pool.mapTx.find(tx10.GetId())->GetTx(),
REMOVAL_REASON_DUMMY);
CheckSort<descendant_score>(pool, snapshotOrder, "MempoolIndexingTest7");
pool.removeRecursive(pool.mapTx.find(tx9.GetId())->GetTx(),
REMOVAL_REASON_DUMMY);
pool.removeRecursive(pool.mapTx.find(tx8.GetId())->GetTx(),
REMOVAL_REASON_DUMMY);
}
BOOST_AUTO_TEST_CASE(MempoolAncestorIndexingTest) {
CTxMemPool pool;
LOCK2(cs_main, pool.cs);
TestMemPoolEntryHelper entry;
/**
* Remove the default nonzero sigops, since the below tests are focussing on
* fee-based ordering and involve some artificially very tiny 21-byte
* transactions without any inputs.
*/
entry.SigOpCount(0);
/* 3rd highest fee */
CMutableTransaction tx1 = CMutableTransaction();
tx1.vout.resize(1);
tx1.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx1.vout[0].nValue = 10 * COIN;
pool.addUnchecked(entry.Fee(10000 * SATOSHI).FromTx(tx1));
/* highest fee */
CMutableTransaction tx2 = CMutableTransaction();
tx2.vout.resize(1);
tx2.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx2.vout[0].nValue = 2 * COIN;
pool.addUnchecked(entry.Fee(20000 * SATOSHI).FromTx(tx2));
uint64_t tx2Size = CTransaction(tx2).GetTotalSize();
/* lowest fee */
CMutableTransaction tx3 = CMutableTransaction();
tx3.vout.resize(1);
tx3.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx3.vout[0].nValue = 5 * COIN;
pool.addUnchecked(entry.Fee(Amount::zero()).FromTx(tx3));
/* 2nd highest fee */
CMutableTransaction tx4 = CMutableTransaction();
tx4.vout.resize(1);
tx4.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx4.vout[0].nValue = 6 * COIN;
pool.addUnchecked(entry.Fee(15000 * SATOSHI).FromTx(tx4));
/* equal fee rate to tx1, but newer */
CMutableTransaction tx5 = CMutableTransaction();
tx5.vout.resize(1);
tx5.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx5.vout[0].nValue = 11 * COIN;
pool.addUnchecked(entry.Fee(10000 * SATOSHI).FromTx(tx5));
BOOST_CHECK_EQUAL(pool.size(), 5UL);
std::vector<std::string> sortedOrder;
sortedOrder.resize(5);
sortedOrder[0] = tx2.GetId().ToString(); // 20000
sortedOrder[1] = tx4.GetId().ToString(); // 15000
// tx1 and tx5 are both 10000
// Ties are broken by hash, not timestamp, so determine which hash comes
// first.
if (tx1.GetId() < tx5.GetId()) {
sortedOrder[2] = tx1.GetId().ToString();
sortedOrder[3] = tx5.GetId().ToString();
} else {
sortedOrder[2] = tx5.GetId().ToString();
sortedOrder[3] = tx1.GetId().ToString();
}
sortedOrder[4] = tx3.GetId().ToString(); // 0
CheckSort<ancestor_score>(pool, sortedOrder,
"MempoolAncestorIndexingTest1");
/* low fee parent with high fee child */
/* tx6 (0) -> tx7 (high) */
CMutableTransaction tx6 = CMutableTransaction();
tx6.vout.resize(1);
tx6.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx6.vout[0].nValue = 20 * COIN;
uint64_t tx6Size = CTransaction(tx6).GetTotalSize();
pool.addUnchecked(entry.Fee(Amount::zero()).FromTx(tx6));
BOOST_CHECK_EQUAL(pool.size(), 6UL);
// Ties are broken by hash
if (tx3.GetId() < tx6.GetId()) {
sortedOrder.push_back(tx6.GetId().ToString());
} else {
sortedOrder.insert(sortedOrder.end() - 1, tx6.GetId().ToString());
}
CheckSort<ancestor_score>(pool, sortedOrder,
"MempoolAncestorIndexingTest2");
CMutableTransaction tx7 = CMutableTransaction();
tx7.vin.resize(1);
tx7.vin[0].prevout = COutPoint(tx6.GetId(), 0);
tx7.vin[0].scriptSig = CScript() << OP_11;
tx7.vout.resize(1);
tx7.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx7.vout[0].nValue = 10 * COIN;
uint64_t tx7Size = CTransaction(tx7).GetTotalSize();
/* set the fee to just below tx2's feerate when including ancestor */
Amount fee = int64_t((20000 / tx2Size) * (tx7Size + tx6Size) - 1) * SATOSHI;
// CTxMemPoolEntry entry7(tx7, fee, 2, 10.0, 1, true);
pool.addUnchecked(entry.Fee(Amount(fee)).FromTx(tx7));
BOOST_CHECK_EQUAL(pool.size(), 7UL);
sortedOrder.insert(sortedOrder.begin() + 1, tx7.GetId().ToString());
CheckSort<ancestor_score>(pool, sortedOrder,
"MempoolAncestorIndexingTest3");
/* after tx6 is mined, tx7 should move up in the sort */
std::vector<CTransactionRef> vtx;
vtx.push_back(MakeTransactionRef(tx6));
pool.removeForBlock(vtx, 1);
sortedOrder.erase(sortedOrder.begin() + 1);
// Ties are broken by hash
if (tx3.GetId() < tx6.GetId()) {
sortedOrder.pop_back();
} else {
sortedOrder.erase(sortedOrder.end() - 2);
}
sortedOrder.insert(sortedOrder.begin(), tx7.GetId().ToString());
CheckSort<ancestor_score>(pool, sortedOrder,
"MempoolAncestorIndexingTest4");
// High-fee parent, low-fee child
// tx7 -> tx8
CMutableTransaction tx8 = CMutableTransaction();
tx8.vin.resize(1);
tx8.vin[0].prevout = COutPoint(tx7.GetId(), 0);
tx8.vin[0].scriptSig = CScript() << OP_11;
tx8.vout.resize(1);
tx8.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx8.vout[0].nValue = 10 * COIN;
// Check that we sort by min(feerate, ancestor_feerate):
// set the fee so that the ancestor feerate is above tx1/5,
// but the transaction's own feerate is lower
pool.addUnchecked(entry.Fee(Amount(5000 * SATOSHI)).FromTx(tx8));
sortedOrder.insert(sortedOrder.end() - 1, tx8.GetId().ToString());
CheckSort<ancestor_score>(pool, sortedOrder,
"MempoolAncestorIndexingTest5");
}
BOOST_AUTO_TEST_CASE(MempoolSizeLimitTest) {
CTxMemPool pool;
LOCK2(cs_main, pool.cs);
TestMemPoolEntryHelper entry;
Amount feeIncrement = MEMPOOL_FULL_FEE_INCREMENT.GetFeePerK();
CMutableTransaction tx1 = CMutableTransaction();
tx1.vin.resize(1);
tx1.vin[0].scriptSig = CScript() << OP_1;
tx1.vout.resize(1);
tx1.vout[0].scriptPubKey = CScript() << OP_1 << OP_EQUAL;
tx1.vout[0].nValue = 10 * COIN;
pool.addUnchecked(entry.Fee(10000 * SATOSHI).FromTx(tx1));
CMutableTransaction tx2 = CMutableTransaction();
tx2.vin.resize(1);
tx2.vin[0].scriptSig = CScript() << OP_2;
tx2.vout.resize(1);
tx2.vout[0].scriptPubKey = CScript() << OP_2 << OP_EQUAL;
tx2.vout[0].nValue = 10 * COIN;
pool.addUnchecked(entry.Fee(5000 * SATOSHI).FromTx(tx2));
// should do nothing
pool.TrimToSize(pool.DynamicMemoryUsage());
BOOST_CHECK(pool.exists(tx1.GetId()));
BOOST_CHECK(pool.exists(tx2.GetId()));
// should remove the lower-feerate transaction
pool.TrimToSize(pool.DynamicMemoryUsage() * 3 / 4);
BOOST_CHECK(pool.exists(tx1.GetId()));
BOOST_CHECK(!pool.exists(tx2.GetId()));
pool.addUnchecked(entry.FromTx(tx2));
CMutableTransaction tx3 = CMutableTransaction();
tx3.vin.resize(1);
tx3.vin[0].prevout = COutPoint(tx2.GetId(), 0);
tx3.vin[0].scriptSig = CScript() << OP_2;
tx3.vout.resize(1);
tx3.vout[0].scriptPubKey = CScript() << OP_3 << OP_EQUAL;
tx3.vout[0].nValue = 10 * COIN;
pool.addUnchecked(entry.Fee(20000 * SATOSHI).FromTx(tx3));
// tx3 should pay for tx2 (CPFP)
pool.TrimToSize(pool.DynamicMemoryUsage() * 3 / 4);
BOOST_CHECK(!pool.exists(tx1.GetId()));
BOOST_CHECK(pool.exists(tx2.GetId()));
BOOST_CHECK(pool.exists(tx3.GetId()));
// mempool is limited to tx1's size in memory usage, so nothing fits
pool.TrimToSize(CTransaction(tx1).GetTotalSize());
BOOST_CHECK(!pool.exists(tx1.GetId()));
BOOST_CHECK(!pool.exists(tx2.GetId()));
BOOST_CHECK(!pool.exists(tx3.GetId()));
CFeeRate maxFeeRateRemoved(25000 * SATOSHI,
CTransaction(tx3).GetTotalSize() +
CTransaction(tx2).GetTotalSize());
BOOST_CHECK_EQUAL(pool.GetMinFee(1).GetFeePerK(),
maxFeeRateRemoved.GetFeePerK() + feeIncrement);
CMutableTransaction tx4 = CMutableTransaction();
tx4.vin.resize(2);
tx4.vin[0].prevout = COutPoint();
tx4.vin[0].scriptSig = CScript() << OP_4;
tx4.vin[1].prevout = COutPoint();
tx4.vin[1].scriptSig = CScript() << OP_4;
tx4.vout.resize(2);
tx4.vout[0].scriptPubKey = CScript() << OP_4 << OP_EQUAL;
tx4.vout[0].nValue = 10 * COIN;
tx4.vout[1].scriptPubKey = CScript() << OP_4 << OP_EQUAL;
tx4.vout[1].nValue = 10 * COIN;
CMutableTransaction tx5 = CMutableTransaction();
tx5.vin.resize(2);
tx5.vin[0].prevout = COutPoint(tx4.GetId(), 0);
tx5.vin[0].scriptSig = CScript() << OP_4;
tx5.vin[1].prevout = COutPoint();
tx5.vin[1].scriptSig = CScript() << OP_5;
tx5.vout.resize(2);
tx5.vout[0].scriptPubKey = CScript() << OP_5 << OP_EQUAL;
tx5.vout[0].nValue = 10 * COIN;
tx5.vout[1].scriptPubKey = CScript() << OP_5 << OP_EQUAL;
tx5.vout[1].nValue = 10 * COIN;
CMutableTransaction tx6 = CMutableTransaction();
tx6.vin.resize(2);
tx6.vin[0].prevout = COutPoint(tx4.GetId(), 1);
tx6.vin[0].scriptSig = CScript() << OP_4;
tx6.vin[1].prevout = COutPoint();
tx6.vin[1].scriptSig = CScript() << OP_6;
tx6.vout.resize(2);
tx6.vout[0].scriptPubKey = CScript() << OP_6 << OP_EQUAL;
tx6.vout[0].nValue = 10 * COIN;
tx6.vout[1].scriptPubKey = CScript() << OP_6 << OP_EQUAL;
tx6.vout[1].nValue = 10 * COIN;
CMutableTransaction tx7 = CMutableTransaction();
tx7.vin.resize(2);
tx7.vin[0].prevout = COutPoint(tx5.GetId(), 0);
tx7.vin[0].scriptSig = CScript() << OP_5;
tx7.vin[1].prevout = COutPoint(tx6.GetId(), 0);
tx7.vin[1].scriptSig = CScript() << OP_6;
tx7.vout.resize(2);
tx7.vout[0].scriptPubKey = CScript() << OP_7 << OP_EQUAL;
tx7.vout[0].nValue = 10 * COIN;
tx7.vout[1].scriptPubKey = CScript() << OP_7 << OP_EQUAL;
tx7.vout[1].nValue = 10 * COIN;
pool.addUnchecked(entry.Fee(7000 * SATOSHI).FromTx(tx4));
pool.addUnchecked(entry.Fee(1000 * SATOSHI).FromTx(tx5));
pool.addUnchecked(entry.Fee(1100 * SATOSHI).FromTx(tx6));
pool.addUnchecked(entry.Fee(9000 * SATOSHI).FromTx(tx7));
// we only require this to remove, at max, 2 txn, because it's not clear
// what we're really optimizing for aside from that
pool.TrimToSize(pool.DynamicMemoryUsage() - 1);
BOOST_CHECK(pool.exists(tx4.GetId()));
BOOST_CHECK(pool.exists(tx6.GetId()));
BOOST_CHECK(!pool.exists(tx7.GetId()));
if (!pool.exists(tx5.GetId())) {
pool.addUnchecked(entry.Fee(1000 * SATOSHI).FromTx(tx5));
}
pool.addUnchecked(entry.Fee(9000 * SATOSHI).FromTx(tx7));
// should maximize mempool size by only removing 5/7
pool.TrimToSize(pool.DynamicMemoryUsage() / 2);
BOOST_CHECK(pool.exists(tx4.GetId()));
BOOST_CHECK(!pool.exists(tx5.GetId()));
BOOST_CHECK(pool.exists(tx6.GetId()));
BOOST_CHECK(!pool.exists(tx7.GetId()));
pool.addUnchecked(entry.Fee(1000 * SATOSHI).FromTx(tx5));
pool.addUnchecked(entry.Fee(9000 * SATOSHI).FromTx(tx7));
std::vector<CTransactionRef> vtx;
SetMockTime(42);
SetMockTime(42 + CTxMemPool::ROLLING_FEE_HALFLIFE);
BOOST_CHECK_EQUAL(pool.GetMinFee(1).GetFeePerK(),
maxFeeRateRemoved.GetFeePerK() + feeIncrement);
// ... we should keep the same min fee until we get a block
pool.removeForBlock(vtx, 1);
SetMockTime(42 + 2 * CTxMemPool::ROLLING_FEE_HALFLIFE);
BOOST_CHECK_EQUAL(pool.GetMinFee(1).GetFeePerK(),
(maxFeeRateRemoved.GetFeePerK() + feeIncrement) / 2);
// ... then feerate should drop 1/2 each halflife
SetMockTime(42 + 2 * CTxMemPool::ROLLING_FEE_HALFLIFE +
CTxMemPool::ROLLING_FEE_HALFLIFE / 2);
BOOST_CHECK_EQUAL(
pool.GetMinFee(pool.DynamicMemoryUsage() * 5 / 2).GetFeePerK(),
(maxFeeRateRemoved.GetFeePerK() + feeIncrement) / 4);
// ... with a 1/2 halflife when mempool is < 1/2 its target size
SetMockTime(42 + 2 * CTxMemPool::ROLLING_FEE_HALFLIFE +
CTxMemPool::ROLLING_FEE_HALFLIFE / 2 +
CTxMemPool::ROLLING_FEE_HALFLIFE / 4);
BOOST_CHECK_EQUAL(
pool.GetMinFee(pool.DynamicMemoryUsage() * 9 / 2).GetFeePerK(),
(maxFeeRateRemoved.GetFeePerK() + feeIncrement) / 8 + SATOSHI);
// ... with a 1/4 halflife when mempool is < 1/4 its target size
}
// expectedSize can be smaller than correctlyOrderedIds.size(), since we
// might be testing intermediary states. Just avoiding some slice operations,
void CheckDisconnectPoolOrder(DisconnectedBlockTransactions &disconnectPool,
std::vector<TxId> correctlyOrderedIds,
unsigned int expectedSize) {
int i = 0;
BOOST_CHECK_EQUAL(disconnectPool.GetQueuedTx().size(), expectedSize);
// Txns in queuedTx's insertion_order index are sorted from children to
// parent txn
for (const CTransactionRef &tx :
reverse_iterate(disconnectPool.GetQueuedTx().get<insertion_order>())) {
BOOST_CHECK(tx->GetId() == correctlyOrderedIds[i]);
i++;
}
}
typedef std::vector<CMutableTransaction *> vecptx;
BOOST_AUTO_TEST_CASE(TestImportMempool) {
CMutableTransaction chainedTxn[5];
std::vector<TxId> correctlyOrderedIds;
COutPoint lastOutpoint;
// Construct a chain of 5 transactions
for (int i = 0; i < 5; i++) {
chainedTxn[i].vin.emplace_back(lastOutpoint);
chainedTxn[i].vout.emplace_back(10 * SATOSHI, CScript() << OP_TRUE);
correctlyOrderedIds.push_back(chainedTxn[i].GetId());
lastOutpoint = COutPoint(correctlyOrderedIds[i], 0);
}
// The first 3 txns simulate once confirmed transactions that have been
// disconnected. We test 3 different orders: in order, one case of mixed
// order and inverted order.
vecptx disconnectedTxnsInOrder = {&chainedTxn[0], &chainedTxn[1],
&chainedTxn[2]};
vecptx disconnectedTxnsMixedOrder = {&chainedTxn[1], &chainedTxn[2],
&chainedTxn[0]};
vecptx disconnectedTxnsInvertedOrder = {&chainedTxn[2], &chainedTxn[1],
&chainedTxn[0]};
// The last 2 txns simulate a chain of unconfirmed transactions in the
// mempool. We test 2 different orders: in and out of order.
vecptx unconfTxnsInOrder = {&chainedTxn[3], &chainedTxn[4]};
vecptx unconfTxnsOutOfOrder = {&chainedTxn[4], &chainedTxn[3]};
// Now we test all combinations of the previously defined orders for
// disconnected and unconfirmed txns. The expected outcome is to have these
// transactions in the correct order in queuedTx, as defined in
// correctlyOrderedIds.
for (auto &disconnectedTxns :
{disconnectedTxnsInOrder, disconnectedTxnsMixedOrder,
disconnectedTxnsInvertedOrder}) {
for (auto &unconfTxns : {unconfTxnsInOrder, unconfTxnsOutOfOrder}) {
CTxMemPool testPool;
// addForBlock inserts disconnectTxns in disconnectPool. They
// simulate transactions that were once confirmed in a block
std::vector<CTransactionRef> vtx;
for (auto tx : disconnectedTxns) {
vtx.push_back(MakeTransactionRef(*tx));
}
DisconnectedBlockTransactions disconnectPool;
LOCK(testPool.cs);
{
disconnectPool.addForBlock(vtx, testPool);
CheckDisconnectPoolOrder(disconnectPool, correctlyOrderedIds,
disconnectedTxns.size());
// If the mempool is empty, importMempool doesn't change
// disconnectPool
disconnectPool.importMempool(testPool);
CheckDisconnectPoolOrder(disconnectPool, correctlyOrderedIds,
disconnectedTxns.size());
{
LOCK(cs_main);
// Add all unconfirmed transactions in testPool
for (auto tx : unconfTxns) {
TestMemPoolEntryHelper entry;
testPool.addUnchecked(entry.FromTx(*tx));
}
}
// Now we test importMempool with a non empty mempool
disconnectPool.importMempool(testPool);
}
CheckDisconnectPoolOrder(disconnectPool, correctlyOrderedIds,
disconnectedTxns.size() +
unconfTxns.size());
// We must clear disconnectPool to not trigger the assert in its
// destructor
disconnectPool.clear();
}
}
}
inline CTransactionRef
make_tx(std::vector<Amount> &&output_values,
std::vector<CTransactionRef> &&inputs = std::vector<CTransactionRef>(),
std::vector<uint32_t> &&input_indices = std::vector<uint32_t>()) {
CMutableTransaction tx = CMutableTransaction();
tx.vin.resize(inputs.size());
tx.vout.resize(output_values.size());
for (size_t i = 0; i < inputs.size(); ++i) {
tx.vin[i].prevout =
COutPoint(inputs[i]->GetId(),
input_indices.size() > i ? input_indices[i] : 0);
}
for (size_t i = 0; i < output_values.size(); ++i) {
tx.vout[i].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx.vout[i].nValue = output_values[i];
}
return MakeTransactionRef(tx);
}
BOOST_AUTO_TEST_CASE(MempoolAncestryTests) {
size_t ancestors, descendants;
CTxMemPool pool;
LOCK2(cs_main, pool.cs);
TestMemPoolEntryHelper entry;
/* Base transaction */
//
// [tx1]
//
CTransactionRef tx1 = make_tx(/* output_values */ {10 * COIN});
pool.addUnchecked(entry.Fee(10000 * SATOSHI).FromTx(tx1));
// Ancestors / descendants should be 1 / 1 (itself / itself)
pool.GetTransactionAncestry(tx1->GetId(), ancestors, descendants);
BOOST_CHECK_EQUAL(ancestors, 1ULL);
BOOST_CHECK_EQUAL(descendants, 1ULL);
/* Child transaction */
//
// [tx1].0 <- [tx2]
//
CTransactionRef tx2 =
make_tx(/* output_values */ {495 * CENT, 5 * COIN}, /* inputs */ {tx1});
pool.addUnchecked(entry.Fee(10000 * SATOSHI).FromTx(tx2));
// Ancestors / descendants should be:
// transaction ancestors descendants
// ============ =========== ===========
// tx1 1 (tx1) 2 (tx1,2)
// tx2 2 (tx1,2) 2 (tx1,2)
pool.GetTransactionAncestry(tx1->GetId(), ancestors, descendants);
BOOST_CHECK_EQUAL(ancestors, 1ULL);
BOOST_CHECK_EQUAL(descendants, 2ULL);
pool.GetTransactionAncestry(tx2->GetId(), ancestors, descendants);
BOOST_CHECK_EQUAL(ancestors, 2ULL);
BOOST_CHECK_EQUAL(descendants, 2ULL);
/* Grand-child 1 */
//
// [tx1].0 <- [tx2].0 <- [tx3]
//
CTransactionRef tx3 = make_tx(/* output_values */ {290 * CENT, 200 * CENT},
/* inputs */ {tx2});
pool.addUnchecked(entry.Fee(10000 * SATOSHI).FromTx(tx3));
// Ancestors / descendants should be:
// transaction ancestors descendants
// ============ =========== ===========
// tx1 1 (tx1) 3 (tx1,2,3)
// tx2 2 (tx1,2) 3 (tx1,2,3)
// tx3 3 (tx1,2,3) 3 (tx1,2,3)
pool.GetTransactionAncestry(tx1->GetId(), ancestors, descendants);
BOOST_CHECK_EQUAL(ancestors, 1ULL);
BOOST_CHECK_EQUAL(descendants, 3ULL);
pool.GetTransactionAncestry(tx2->GetId(), ancestors, descendants);
BOOST_CHECK_EQUAL(ancestors, 2ULL);
BOOST_CHECK_EQUAL(descendants, 3ULL);
pool.GetTransactionAncestry(tx3->GetId(), ancestors, descendants);
BOOST_CHECK_EQUAL(ancestors, 3ULL);
BOOST_CHECK_EQUAL(descendants, 3ULL);