Files
bitcoin/src/test/mempool_tests.cpp
Suhas Daftuar a3c31dfd71 scripted-diff: rename AddToMempool -> TryAddToMempool
-BEGIN VERIFY SCRIPT-
find src/test -type f -exec sed -i 's/AddToMempool/TryAddToMempool/g' {} +
find src/bench -type f -exec sed -i 's/AddToMempool/TryAddToMempool/g' {} +
-END VERIFY SCRIPT-
2025-11-30 10:57:48 -05:00

502 lines
21 KiB
C++

// Copyright (c) 2011-2022 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 <common/system.h>
#include <policy/policy.h>
#include <test/util/txmempool.h>
#include <txmempool.h>
#include <util/time.h>
#include <test/util/setup_common.h>
#include <boost/test/unit_test.hpp>
#include <vector>
BOOST_FIXTURE_TEST_SUITE(mempool_tests, TestingSetup)
static constexpr auto REMOVAL_REASON_DUMMY = MemPoolRemovalReason::REPLACED;
class MemPoolTest final : public CTxMemPool
{
public:
using CTxMemPool::GetMinFee;
};
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 = 33000LL;
}
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.hash = txParent.GetHash();
txChild[i].vin[0].prevout.n = i;
txChild[i].vout.resize(1);
txChild[i].vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
txChild[i].vout[0].nValue = 11000LL;
}
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.hash = txChild[i].GetHash();
txGrandChild[i].vin[0].prevout.n = 0;
txGrandChild[i].vout.resize(1);
txGrandChild[i].vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
txGrandChild[i].vout[0].nValue = 11000LL;
}
CTxMemPool& testPool = *Assert(m_node.mempool);
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:
TryAddToMempool(testPool, entry.FromTx(txParent));
poolSize = testPool.size();
testPool.removeRecursive(CTransaction(txParent), REMOVAL_REASON_DUMMY);
BOOST_CHECK_EQUAL(testPool.size(), poolSize - 1);
// Parent, children, grandchildren:
TryAddToMempool(testPool, entry.FromTx(txParent));
for (int i = 0; i < 3; i++)
{
TryAddToMempool(testPool, entry.FromTx(txChild[i]));
TryAddToMempool(testPool, 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(), 0U);
// Add children and grandchildren, but NOT the parent (simulate the parent being in a block)
for (int i = 0; i < 3; i++)
{
TryAddToMempool(testPool, entry.FromTx(txChild[i]));
TryAddToMempool(testPool, 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(), 0U);
}
BOOST_AUTO_TEST_CASE(MempoolSizeLimitTest)
{
auto& pool = static_cast<MemPoolTest&>(*Assert(m_node.mempool));
LOCK2(cs_main, pool.cs);
TestMemPoolEntryHelper entry;
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;
TryAddToMempool(pool, entry.Fee(1000LL).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;
TryAddToMempool(pool, entry.Fee(500LL).FromTx(tx2));
pool.TrimToSize(pool.DynamicMemoryUsage()); // should do nothing
BOOST_CHECK(pool.exists(tx1.GetHash()));
BOOST_CHECK(pool.exists(tx2.GetHash()));
pool.TrimToSize(pool.DynamicMemoryUsage() * 3 / 4); // should remove the lower-feerate transaction
BOOST_CHECK(pool.exists(tx1.GetHash()));
BOOST_CHECK(!pool.exists(tx2.GetHash()));
TryAddToMempool(pool, entry.FromTx(tx2));
CMutableTransaction tx3 = CMutableTransaction();
tx3.vin.resize(1);
tx3.vin[0].prevout = COutPoint(tx2.GetHash(), 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;
TryAddToMempool(pool, entry.Fee(2000LL).FromTx(tx3));
pool.TrimToSize(pool.DynamicMemoryUsage() * 3 / 4); // tx3 should pay for tx2 (CPFP)
BOOST_CHECK(!pool.exists(tx1.GetHash()));
BOOST_CHECK(pool.exists(tx2.GetHash()));
BOOST_CHECK(pool.exists(tx3.GetHash()));
pool.TrimToSize(GetVirtualTransactionSize(CTransaction(tx1))); // mempool is limited to tx1's size in memory usage, so nothing fits
BOOST_CHECK(!pool.exists(tx1.GetHash()));
BOOST_CHECK(!pool.exists(tx2.GetHash()));
BOOST_CHECK(!pool.exists(tx3.GetHash()));
CFeeRate maxFeeRateRemoved(2500, GetVirtualTransactionSize(CTransaction(tx3)) + GetVirtualTransactionSize(CTransaction(tx2)));
BOOST_CHECK_EQUAL(pool.GetMinFee(1).GetFeePerK(), maxFeeRateRemoved.GetFeePerK() + DEFAULT_INCREMENTAL_RELAY_FEE);
CMutableTransaction tx4 = CMutableTransaction();
tx4.vin.resize(2);
tx4.vin[0].prevout.SetNull();
tx4.vin[0].scriptSig = CScript() << OP_4;
tx4.vin[1].prevout.SetNull();
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.GetHash(), 0);
tx5.vin[0].scriptSig = CScript() << OP_4;
tx5.vin[1].prevout.SetNull();
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.GetHash(), 1);
tx6.vin[0].scriptSig = CScript() << OP_4;
tx6.vin[1].prevout.SetNull();
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.GetHash(), 0);
tx7.vin[0].scriptSig = CScript() << OP_5;
tx7.vin[1].prevout = COutPoint(tx6.GetHash(), 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;
TryAddToMempool(pool, entry.Fee(700LL).FromTx(tx4));
auto usage_with_tx4_only = pool.DynamicMemoryUsage();
TryAddToMempool(pool, entry.Fee(100LL).FromTx(tx5));
TryAddToMempool(pool, entry.Fee(110LL).FromTx(tx6));
TryAddToMempool(pool, entry.Fee(900LL).FromTx(tx7));
// From the topology above, tx7 must be sorted last, so it should
// definitely evicted first if we must trim. tx4 should definitely remain
// in the mempool since it has a higher feerate than its descendants and
// should be in its own chunk.
pool.TrimToSize(pool.DynamicMemoryUsage() - 1);
BOOST_CHECK(pool.exists(tx4.GetHash()));
BOOST_CHECK(!pool.exists(tx7.GetHash()));
// Tx5 and Tx6 may be removed as well because they're in the same chunk as
// tx7, but this behavior need not be guaranteed.
if (!pool.exists(tx5.GetHash()))
TryAddToMempool(pool, entry.Fee(100LL).FromTx(tx5));
if (!pool.exists(tx6.GetHash()))
TryAddToMempool(pool, entry.Fee(110LL).FromTx(tx6));
TryAddToMempool(pool, entry.Fee(900LL).FromTx(tx7));
// If we trim sufficiently, everything but tx4 should be removed.
pool.TrimToSize(usage_with_tx4_only + 1);
BOOST_CHECK(pool.exists(tx4.GetHash()));
BOOST_CHECK(!pool.exists(tx5.GetHash()));
BOOST_CHECK(!pool.exists(tx6.GetHash()));
BOOST_CHECK(!pool.exists(tx7.GetHash()));
TryAddToMempool(pool, entry.Fee(100LL).FromTx(tx5));
TryAddToMempool(pool, entry.Fee(110LL).FromTx(tx6));
TryAddToMempool(pool, entry.Fee(900LL).FromTx(tx7));
std::vector<CTransactionRef> vtx;
SetMockTime(42);
SetMockTime(42 + CTxMemPool::ROLLING_FEE_HALFLIFE);
BOOST_CHECK_EQUAL(pool.GetMinFee(1).GetFeePerK(), maxFeeRateRemoved.GetFeePerK() + DEFAULT_INCREMENTAL_RELAY_FEE);
// ... 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(), llround((maxFeeRateRemoved.GetFeePerK() + DEFAULT_INCREMENTAL_RELAY_FEE)/2.0));
// ... 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(), llround((maxFeeRateRemoved.GetFeePerK() + DEFAULT_INCREMENTAL_RELAY_FEE)/4.0));
// ... 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(), llround((maxFeeRateRemoved.GetFeePerK() + DEFAULT_INCREMENTAL_RELAY_FEE)/8.0));
// ... with a 1/4 halflife when mempool is < 1/4 its target size
SetMockTime(42 + 7*CTxMemPool::ROLLING_FEE_HALFLIFE + CTxMemPool::ROLLING_FEE_HALFLIFE/2 + CTxMemPool::ROLLING_FEE_HALFLIFE/4);
BOOST_CHECK_EQUAL(pool.GetMinFee(1).GetFeePerK(), DEFAULT_INCREMENTAL_RELAY_FEE);
// ... but feerate should never drop below DEFAULT_INCREMENTAL_RELAY_FEE
SetMockTime(42 + 8*CTxMemPool::ROLLING_FEE_HALFLIFE + CTxMemPool::ROLLING_FEE_HALFLIFE/2 + CTxMemPool::ROLLING_FEE_HALFLIFE/4);
BOOST_CHECK_EQUAL(pool.GetMinFee(1).GetFeePerK(), 0);
// ... unless it has gone all the way to 0 (after getting past DEFAULT_INCREMENTAL_RELAY_FEE/2)
}
inline CTransactionRef make_tx(std::vector<CAmount>&& 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.hash = inputs[i]->GetHash();
tx.vin[i].prevout.n = 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, clustersize;
CTxMemPool& pool = *Assert(m_node.mempool);
LOCK2(cs_main, pool.cs);
TestMemPoolEntryHelper entry;
/* Base transaction */
//
// [tx1]
//
CTransactionRef tx1 = make_tx(/*output_values=*/{10 * COIN});
TryAddToMempool(pool, entry.Fee(10000LL).FromTx(tx1));
// Ancestors / clustersize should be 1 / 1 (itself / itself)
pool.GetTransactionAncestry(tx1->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 1ULL);
BOOST_CHECK_EQUAL(clustersize, 1ULL);
/* Child transaction */
//
// [tx1].0 <- [tx2]
//
CTransactionRef tx2 = make_tx(/*output_values=*/{495 * CENT, 5 * COIN}, /*inputs=*/{tx1});
TryAddToMempool(pool, entry.Fee(10000LL).FromTx(tx2));
// Ancestors / clustersize should be:
// transaction ancestors clustersize
// ============ =========== ===========
// tx1 1 (tx1) 2 (tx1,2)
// tx2 2 (tx1,2) 2 (tx1,2)
pool.GetTransactionAncestry(tx1->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 1ULL);
BOOST_CHECK_EQUAL(clustersize, 2ULL);
pool.GetTransactionAncestry(tx2->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 2ULL);
BOOST_CHECK_EQUAL(clustersize, 2ULL);
/* Grand-child 1 */
//
// [tx1].0 <- [tx2].0 <- [tx3]
//
CTransactionRef tx3 = make_tx(/*output_values=*/{290 * CENT, 200 * CENT}, /*inputs=*/{tx2});
TryAddToMempool(pool, entry.Fee(10000LL).FromTx(tx3));
// Ancestors / clustersize should be:
// transaction ancestors clustersize
// ============ =========== ===========
// 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->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 1ULL);
BOOST_CHECK_EQUAL(clustersize, 3ULL);
pool.GetTransactionAncestry(tx2->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 2ULL);
BOOST_CHECK_EQUAL(clustersize, 3ULL);
pool.GetTransactionAncestry(tx3->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 3ULL);
BOOST_CHECK_EQUAL(clustersize, 3ULL);
/* Grand-child 2 */
//
// [tx1].0 <- [tx2].0 <- [tx3]
// |
// \---1 <- [tx4]
//
CTransactionRef tx4 = make_tx(/*output_values=*/{290 * CENT, 250 * CENT}, /*inputs=*/{tx2}, /*input_indices=*/{1});
TryAddToMempool(pool, entry.Fee(10000LL).FromTx(tx4));
// Ancestors / clustersize should be:
// transaction ancestors clustersize
// ============ =========== ===========
// tx1 1 (tx1) 4 (tx1,2,3,4)
// tx2 2 (tx1,2) 4 (tx1,2,3,4)
// tx3 3 (tx1,2,3) 4 (tx1,2,3,4)
// tx4 3 (tx1,2,4) 4 (tx1,2,3,4)
pool.GetTransactionAncestry(tx1->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 1ULL);
BOOST_CHECK_EQUAL(clustersize, 4ULL);
pool.GetTransactionAncestry(tx2->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 2ULL);
BOOST_CHECK_EQUAL(clustersize, 4ULL);
pool.GetTransactionAncestry(tx3->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 3ULL);
BOOST_CHECK_EQUAL(clustersize, 4ULL);
pool.GetTransactionAncestry(tx4->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 3ULL);
BOOST_CHECK_EQUAL(clustersize, 4ULL);
/* Make an alternate branch that is longer and connect it to tx3 */
//
// [ty1].0 <- [ty2].0 <- [ty3].0 <- [ty4].0 <- [ty5].0
// |
// [tx1].0 <- [tx2].0 <- [tx3].0 <- [ty6] --->--/
// |
// \---1 <- [tx4]
//
CTransactionRef ty1, ty2, ty3, ty4, ty5;
CTransactionRef* ty[5] = {&ty1, &ty2, &ty3, &ty4, &ty5};
CAmount v = 5 * COIN;
for (uint64_t i = 0; i < 5; i++) {
CTransactionRef& tyi = *ty[i];
tyi = make_tx(/*output_values=*/{v}, /*inputs=*/i > 0 ? std::vector<CTransactionRef>{*ty[i - 1]} : std::vector<CTransactionRef>{});
v -= 50 * CENT;
TryAddToMempool(pool, entry.Fee(10000LL).FromTx(tyi));
pool.GetTransactionAncestry(tyi->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, i+1);
BOOST_CHECK_EQUAL(clustersize, i+1);
}
CTransactionRef ty6 = make_tx(/*output_values=*/{5 * COIN}, /*inputs=*/{tx3, ty5});
TryAddToMempool(pool, entry.Fee(10000LL).FromTx(ty6));
// Ancestors / clustersize should be:
// transaction ancestors clustersize
// ============ =================== ===========
// tx1 1 (tx1) 10 (tx1-5, ty1-5)
// tx2 2 (tx1,2) 10
// tx3 3 (tx1,2,3) 10
// tx4 3 (tx1,2,4) 10
// ty1 1 (ty1) 10
// ty2 2 (ty1,2) 10
// ty3 3 (ty1,2,3) 10
// ty4 4 (y1234) 10
// ty5 5 (y12345) 10
// ty6 9 (tx123, ty123456) 10
pool.GetTransactionAncestry(tx1->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 1ULL);
BOOST_CHECK_EQUAL(clustersize, 10ULL);
pool.GetTransactionAncestry(tx2->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 2ULL);
BOOST_CHECK_EQUAL(clustersize, 10ULL);
pool.GetTransactionAncestry(tx3->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 3ULL);
BOOST_CHECK_EQUAL(clustersize, 10ULL);
pool.GetTransactionAncestry(tx4->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 3ULL);
BOOST_CHECK_EQUAL(clustersize, 10ULL);
pool.GetTransactionAncestry(ty1->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 1ULL);
BOOST_CHECK_EQUAL(clustersize, 10ULL);
pool.GetTransactionAncestry(ty2->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 2ULL);
BOOST_CHECK_EQUAL(clustersize, 10ULL);
pool.GetTransactionAncestry(ty3->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 3ULL);
BOOST_CHECK_EQUAL(clustersize, 10ULL);
pool.GetTransactionAncestry(ty4->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 4ULL);
BOOST_CHECK_EQUAL(clustersize, 10ULL);
pool.GetTransactionAncestry(ty5->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 5ULL);
BOOST_CHECK_EQUAL(clustersize, 10ULL);
pool.GetTransactionAncestry(ty6->GetHash(), ancestors, clustersize);
BOOST_CHECK_EQUAL(ancestors, 9ULL);
BOOST_CHECK_EQUAL(clustersize, 10ULL);
}
BOOST_AUTO_TEST_CASE(MempoolAncestryTestsDiamond)
{
size_t ancestors, descendants;
CTxMemPool& pool = *Assert(m_node.mempool);
LOCK2(::cs_main, pool.cs);
TestMemPoolEntryHelper entry;
/* Ancestors represented more than once ("diamond") */
//
// [ta].0 <- [tb].0 -----<------- [td].0
// | |
// \---1 <- [tc].0 --<--/
//
CTransactionRef ta, tb, tc, td;
ta = make_tx(/*output_values=*/{10 * COIN});
tb = make_tx(/*output_values=*/{5 * COIN, 3 * COIN}, /*inputs=*/ {ta});
tc = make_tx(/*output_values=*/{2 * COIN}, /*inputs=*/{tb}, /*input_indices=*/{1});
td = make_tx(/*output_values=*/{6 * COIN}, /*inputs=*/{tb, tc}, /*input_indices=*/{0, 0});
TryAddToMempool(pool, entry.Fee(10000LL).FromTx(ta));
TryAddToMempool(pool, entry.Fee(10000LL).FromTx(tb));
TryAddToMempool(pool, entry.Fee(10000LL).FromTx(tc));
TryAddToMempool(pool, entry.Fee(10000LL).FromTx(td));
// Ancestors / descendants should be:
// transaction ancestors descendants
// ============ =================== ===========
// ta 1 (ta 4 (ta,tb,tc,td)
// tb 2 (ta,tb) 4 (ta,tb,tc,td)
// tc 3 (ta,tb,tc) 4 (ta,tb,tc,td)
// td 4 (ta,tb,tc,td) 4 (ta,tb,tc,td)
pool.GetTransactionAncestry(ta->GetHash(), ancestors, descendants);
BOOST_CHECK_EQUAL(ancestors, 1ULL);
BOOST_CHECK_EQUAL(descendants, 4ULL);
pool.GetTransactionAncestry(tb->GetHash(), ancestors, descendants);
BOOST_CHECK_EQUAL(ancestors, 2ULL);
BOOST_CHECK_EQUAL(descendants, 4ULL);
pool.GetTransactionAncestry(tc->GetHash(), ancestors, descendants);
BOOST_CHECK_EQUAL(ancestors, 3ULL);
BOOST_CHECK_EQUAL(descendants, 4ULL);
pool.GetTransactionAncestry(td->GetHash(), ancestors, descendants);
BOOST_CHECK_EQUAL(ancestors, 4ULL);
BOOST_CHECK_EQUAL(descendants, 4ULL);
}
BOOST_AUTO_TEST_SUITE_END()