Branch data Line data Source code
1 : : // Copyright (c) 2021-2022 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 <consensus/validation.h>
6 : : #include <key_io.h>
7 : : #include <policy/packages.h>
8 : : #include <policy/policy.h>
9 : : #include <policy/rbf.h>
10 : : #include <primitives/transaction.h>
11 : : #include <script/script.h>
12 : : #include <serialize.h>
13 : : #include <streams.h>
14 : : #include <test/util/random.h>
15 : : #include <test/util/script.h>
16 : : #include <test/util/setup_common.h>
17 : : #include <util/strencodings.h>
18 : : #include <test/util/txmempool.h>
19 : : #include <validation.h>
20 : :
21 : : #include <boost/test/unit_test.hpp>
22 : :
23 : : using namespace util::hex_literals;
24 : :
25 : : // A fee amount that is above 1sat/vB but below 5sat/vB for most transactions created within these
26 : : // unit tests.
27 : : static const CAmount low_fee_amt{200};
28 : :
29 : 18 : struct TxPackageTest : TestChain100Setup {
30 : : // Create placeholder transactions that have no meaning.
31 : 29 : inline CTransactionRef create_placeholder_tx(size_t num_inputs, size_t num_outputs)
32 : : {
33 : 29 : CMutableTransaction mtx = CMutableTransaction();
34 [ + - ]: 29 : mtx.vin.resize(num_inputs);
35 [ + - ]: 29 : mtx.vout.resize(num_outputs);
36 [ + - + - ]: 29 : auto random_script = CScript() << ToByteVector(m_rng.rand256()) << ToByteVector(m_rng.rand256());
37 [ + + ]: 1205 : for (size_t i{0}; i < num_inputs; ++i) {
38 : 1176 : mtx.vin[i].prevout.hash = Txid::FromUint256(m_rng.rand256());
39 : 1176 : mtx.vin[i].prevout.n = 0;
40 : 1176 : mtx.vin[i].scriptSig = random_script;
41 : : }
42 [ + + ]: 1205 : for (size_t o{0}; o < num_outputs; ++o) {
43 : 1176 : mtx.vout[o].nValue = 1 * CENT;
44 : 1176 : mtx.vout[o].scriptPubKey = random_script;
45 : : }
46 [ + - ]: 58 : return MakeTransactionRef(mtx);
47 : 58 : }
48 : : }; // struct TxPackageTest
49 : :
50 : : BOOST_FIXTURE_TEST_SUITE(txpackage_tests, TxPackageTest)
51 : :
52 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(package_hash_tests)
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53 : : {
54 : : // Random real segwit transaction
55 : 1 : DataStream stream_1{
56 : 1 : "02000000000101964b8aa63509579ca6086e6012eeaa4c2f4dd1e283da29b67c8eea38b3c6fd220000000000fdffffff0294c618000000000017a9145afbbb42f4e83312666d0697f9e66259912ecde38768fa2c0000000000160014897388a0889390fd0e153a22bb2cf9d8f019faf50247304402200547406380719f84d68cf4e96cc3e4a1688309ef475b150be2b471c70ea562aa02206d255f5acc40fd95981874d77201d2eb07883657ce1c796513f32b6079545cdf0121023ae77335cefcb5ab4c1dc1fb0d2acfece184e593727d7d5906c78e564c7c11d125cf0c00"_hex,
57 : 1 : };
58 [ + - ]: 1 : CTransaction tx_1(deserialize, TX_WITH_WITNESS, stream_1);
59 [ + - ]: 1 : CTransactionRef ptx_1{MakeTransactionRef(tx_1)};
60 : :
61 : : // Random real nonsegwit transaction
62 : 1 : DataStream stream_2{
63 [ + - ]: 1 : "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"_hex,
64 [ + - ]: 1 : };
65 [ + - ]: 1 : CTransaction tx_2(deserialize, TX_WITH_WITNESS, stream_2);
66 [ + - ]: 1 : CTransactionRef ptx_2{MakeTransactionRef(tx_2)};
67 : :
68 : : // Random real segwit transaction
69 : 1 : DataStream stream_3{
70 [ + - ]: 1 : "0200000000010177862801f77c2c068a70372b4c435ef8dd621291c36a64eb4dd491f02218f5324600000000fdffffff014a0100000000000022512035ea312034cfac01e956a269f3bf147f569c2fbb00180677421262da042290d803402be713325ff285e66b0380f53f2fae0d0fb4e16f378a440fed51ce835061437566729d4883bc917632f3cff474d6384bc8b989961a1d730d4a87ed38ad28bd337b20f1d658c6c138b1c312e072b4446f50f01ae0da03a42e6274f8788aae53416a7fac0063036f7264010118746578742f706c61696e3b636861727365743d7574662d3800357b2270223a226272632d3230222c226f70223a226d696e74222c227469636b223a224342414c222c22616d74223a2236393639227d6821c1f1d658c6c138b1c312e072b4446f50f01ae0da03a42e6274f8788aae53416a7f00000000"_hex,
71 [ + - ]: 1 : };
72 [ + - ]: 1 : CTransaction tx_3(deserialize, TX_WITH_WITNESS, stream_3);
73 [ + - ]: 1 : CTransactionRef ptx_3{MakeTransactionRef(tx_3)};
74 : :
75 : : // It's easy to see that wtxids are sorted in lexicographical order:
76 [ + - ]: 1 : Wtxid wtxid_1{Wtxid::FromHex("85cd1a31eb38f74ed5742ec9cb546712ab5aaf747de28a9168b53e846cbda17f").value()};
77 [ + - ]: 1 : Wtxid wtxid_2{Wtxid::FromHex("b4749f017444b051c44dfd2720e88f314ff94f3dd6d56d40ef65854fcd7fff6b").value()};
78 [ + - ]: 1 : Wtxid wtxid_3{Wtxid::FromHex("e065bac15f62bb4e761d761db928ddee65a47296b2b776785abb912cdec474e3").value()};
79 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(tx_1.GetWitnessHash(), wtxid_1);
80 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(tx_2.GetWitnessHash(), wtxid_2);
81 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(tx_3.GetWitnessHash(), wtxid_3);
82 : :
83 [ + - + - : 2 : BOOST_CHECK(wtxid_1.GetHex() < wtxid_2.GetHex());
+ - + - +
- + - ]
84 [ + - + - : 2 : BOOST_CHECK(wtxid_2.GetHex() < wtxid_3.GetHex());
+ - + - +
- ]
85 : :
86 : : // The txids are not (we want to test that sorting and hashing use wtxid, not txid):
87 [ + - ]: 1 : Txid txid_1{Txid::FromHex("bd0f71c1d5e50589063e134fad22053cdae5ab2320db5bf5e540198b0b5a4e69").value()};
88 [ + - ]: 1 : Txid txid_2{Txid::FromHex("b4749f017444b051c44dfd2720e88f314ff94f3dd6d56d40ef65854fcd7fff6b").value()};
89 [ + - ]: 1 : Txid txid_3{Txid::FromHex("ee707be5201160e32c4fc715bec227d1aeea5940fb4295605e7373edce3b1a93").value()};
90 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(tx_1.GetHash(), txid_1);
91 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(tx_2.GetHash(), txid_2);
92 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(tx_3.GetHash(), txid_3);
93 : :
94 [ + - + - : 2 : BOOST_CHECK(txid_2.GetHex() < txid_1.GetHex());
+ - + - +
- ]
95 : :
96 [ + - + - : 2 : BOOST_CHECK(txid_1.ToUint256() != wtxid_1.ToUint256());
+ - ]
97 [ + - + - : 2 : BOOST_CHECK(txid_2.ToUint256() == wtxid_2.ToUint256());
+ - ]
98 [ + - + - : 2 : BOOST_CHECK(txid_3.ToUint256() != wtxid_3.ToUint256());
+ - ]
99 : :
100 : : // We are testing that both functions compare using GetHex() and not uint256.
101 : : // (in this pair of wtxids, hex string order != uint256 order)
102 [ + - + - : 2 : BOOST_CHECK(wtxid_2 < wtxid_1);
+ - ]
103 : : // (in this pair of wtxids, hex string order == uint256 order)
104 [ + - + - : 2 : BOOST_CHECK(wtxid_2 < wtxid_3);
+ - ]
105 : :
106 : : // All permutations of the package containing ptx_1, ptx_2, ptx_3 have the same package hash
107 [ + + + - : 4 : std::vector<CTransactionRef> package_123{ptx_1, ptx_2, ptx_3};
- - - - ]
108 [ + + + - : 4 : std::vector<CTransactionRef> package_132{ptx_1, ptx_3, ptx_2};
- - - - ]
109 [ + + + - : 4 : std::vector<CTransactionRef> package_231{ptx_2, ptx_3, ptx_1};
- - - - ]
110 [ + + + - : 4 : std::vector<CTransactionRef> package_213{ptx_2, ptx_1, ptx_3};
- - - - ]
111 [ + + + - : 4 : std::vector<CTransactionRef> package_312{ptx_3, ptx_1, ptx_2};
- - - - ]
112 [ + + + - : 4 : std::vector<CTransactionRef> package_321{ptx_3, ptx_2, ptx_1};
- - - - ]
113 : :
114 [ + - + - : 1 : uint256 calculated_hash_123 = (HashWriter() << wtxid_1 << wtxid_2 << wtxid_3).GetSHA256();
+ - + - +
- ]
115 : :
116 [ + - + - : 1 : uint256 hash_if_by_txid = (HashWriter() << wtxid_2 << wtxid_1 << wtxid_3).GetSHA256();
+ - + - +
- ]
117 [ + - + - : 2 : BOOST_CHECK(hash_if_by_txid != calculated_hash_123);
+ - ]
118 : :
119 [ + - + - : 1 : uint256 hash_if_use_txid = (HashWriter() << txid_2 << txid_1 << txid_3).GetSHA256();
+ - + - +
- ]
120 [ + - + - : 2 : BOOST_CHECK(hash_if_use_txid != calculated_hash_123);
+ - ]
121 : :
122 [ + - + - : 1 : uint256 hash_if_use_int_order = (HashWriter() << wtxid_2 << wtxid_1 << wtxid_3).GetSHA256();
+ - + - +
- ]
123 [ + - + - : 2 : BOOST_CHECK(hash_if_use_int_order != calculated_hash_123);
+ - ]
124 : :
125 [ + - + - : 1 : BOOST_CHECK_EQUAL(calculated_hash_123, GetPackageHash(package_123));
+ - ]
126 [ + - + - : 1 : BOOST_CHECK_EQUAL(calculated_hash_123, GetPackageHash(package_132));
+ - ]
127 [ + - + - : 1 : BOOST_CHECK_EQUAL(calculated_hash_123, GetPackageHash(package_231));
+ - ]
128 [ + - + - : 1 : BOOST_CHECK_EQUAL(calculated_hash_123, GetPackageHash(package_213));
+ - ]
129 [ + - + - : 1 : BOOST_CHECK_EQUAL(calculated_hash_123, GetPackageHash(package_312));
+ - ]
130 [ + - + - : 1 : BOOST_CHECK_EQUAL(calculated_hash_123, GetPackageHash(package_321));
+ - ]
131 [ + - + - : 31 : }
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132 : :
133 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(package_sanitization_tests)
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134 : : {
135 : : // Packages can't have more than 25 transactions.
136 : 1 : Package package_too_many;
137 [ + - ]: 1 : package_too_many.reserve(MAX_PACKAGE_COUNT + 1);
138 [ + + ]: 27 : for (size_t i{0}; i < MAX_PACKAGE_COUNT + 1; ++i) {
139 [ + - + - ]: 52 : package_too_many.emplace_back(create_placeholder_tx(1, 1));
140 : : }
141 [ + - ]: 1 : PackageValidationState state_too_many;
142 [ + - + - : 2 : BOOST_CHECK(!IsWellFormedPackage(package_too_many, state_too_many, /*require_sorted=*/true));
+ - + - ]
143 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(state_too_many.GetResult(), PackageValidationResult::PCKG_POLICY);
144 [ + - + - : 1 : BOOST_CHECK_EQUAL(state_too_many.GetRejectReason(), "package-too-many-transactions");
+ - ]
145 : :
146 : : // Packages can't have a total weight of more than 404'000WU.
147 [ + - ]: 1 : CTransactionRef large_ptx = create_placeholder_tx(150, 150);
148 : 1 : Package package_too_large;
149 : 1 : auto size_large = GetTransactionWeight(*large_ptx);
150 : 1 : size_t total_weight{0};
151 [ + + ]: 6 : while (total_weight <= MAX_PACKAGE_WEIGHT) {
152 [ + - ]: 4 : package_too_large.push_back(large_ptx);
153 : 4 : total_weight += size_large;
154 : : }
155 [ + - + - : 2 : BOOST_CHECK(package_too_large.size() <= MAX_PACKAGE_COUNT);
+ - ]
156 [ + - ]: 1 : PackageValidationState state_too_large;
157 [ + - + - : 2 : BOOST_CHECK(!IsWellFormedPackage(package_too_large, state_too_large, /*require_sorted=*/true));
+ - + - ]
158 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(state_too_large.GetResult(), PackageValidationResult::PCKG_POLICY);
159 [ + - + - : 1 : BOOST_CHECK_EQUAL(state_too_large.GetRejectReason(), "package-too-large");
+ - ]
160 : :
161 : : // Packages can't contain transactions with the same txid.
162 : 1 : Package package_duplicate_txids_empty;
163 [ + + ]: 4 : for (auto i{0}; i < 3; ++i) {
164 [ + - ]: 3 : CMutableTransaction empty_tx;
165 [ + - + - ]: 9 : package_duplicate_txids_empty.emplace_back(MakeTransactionRef(empty_tx));
166 : 3 : }
167 [ + - ]: 1 : PackageValidationState state_duplicates;
168 [ + - + - : 2 : BOOST_CHECK(!IsWellFormedPackage(package_duplicate_txids_empty, state_duplicates, /*require_sorted=*/true));
+ - + - ]
169 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(state_duplicates.GetResult(), PackageValidationResult::PCKG_POLICY);
170 [ + - + - : 1 : BOOST_CHECK_EQUAL(state_duplicates.GetRejectReason(), "package-contains-duplicates");
+ - ]
171 [ + - + - : 2 : BOOST_CHECK(!IsConsistentPackage(package_duplicate_txids_empty));
+ - + - ]
172 : :
173 : : // Packages can't have transactions spending the same prevout
174 [ + - ]: 1 : CMutableTransaction tx_zero_1;
175 [ + - ]: 1 : CMutableTransaction tx_zero_2;
176 [ + - ]: 1 : COutPoint same_prevout{Txid::FromUint256(m_rng.rand256()), 0};
177 [ + - ]: 1 : tx_zero_1.vin.emplace_back(same_prevout);
178 [ + - ]: 1 : tx_zero_2.vin.emplace_back(same_prevout);
179 : : // Different vouts (not the same tx)
180 [ + - ]: 1 : tx_zero_1.vout.emplace_back(CENT, P2WSH_OP_TRUE);
181 [ + - ]: 1 : tx_zero_2.vout.emplace_back(2 * CENT, P2WSH_OP_TRUE);
182 [ + + + - : 3 : Package package_conflicts{MakeTransactionRef(tx_zero_1), MakeTransactionRef(tx_zero_2)};
- - - - ]
183 [ + - + - : 2 : BOOST_CHECK(!IsConsistentPackage(package_conflicts));
+ - + - ]
184 : : // Transactions are considered sorted when they have no dependencies.
185 [ + - + - : 2 : BOOST_CHECK(IsTopoSortedPackage(package_conflicts));
+ - + - ]
186 [ + - ]: 1 : PackageValidationState state_conflicts;
187 [ + - + - : 2 : BOOST_CHECK(!IsWellFormedPackage(package_conflicts, state_conflicts, /*require_sorted=*/true));
+ - + - ]
188 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(state_conflicts.GetResult(), PackageValidationResult::PCKG_POLICY);
189 [ + - + - : 1 : BOOST_CHECK_EQUAL(state_conflicts.GetRejectReason(), "conflict-in-package");
+ - ]
190 : :
191 : : // IsConsistentPackage only cares about conflicts between transactions, not about a transaction
192 : : // conflicting with itself (i.e. duplicate prevouts in vin).
193 [ + - ]: 1 : CMutableTransaction dup_tx;
194 [ + - ]: 1 : const COutPoint rand_prevout{Txid::FromUint256(m_rng.rand256()), 0};
195 [ + - ]: 1 : dup_tx.vin.emplace_back(rand_prevout);
196 [ + - ]: 1 : dup_tx.vin.emplace_back(rand_prevout);
197 [ + + + - : 2 : Package package_with_dup_tx{MakeTransactionRef(dup_tx)};
- - - - ]
198 [ + - + - : 2 : BOOST_CHECK(IsConsistentPackage(package_with_dup_tx));
+ - + - ]
199 [ + - + - ]: 1 : package_with_dup_tx.emplace_back(create_placeholder_tx(1, 1));
200 [ + - + - : 2 : BOOST_CHECK(IsConsistentPackage(package_with_dup_tx));
+ - ]
201 [ + - + - : 14 : }
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- - ]
202 : :
203 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(package_validation_tests)
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204 : : {
205 : 1 : LOCK(cs_main);
206 [ + - ]: 1 : unsigned int initialPoolSize = m_node.mempool->size();
207 : :
208 : : // Parent and Child Package
209 : 1 : CKey parent_key = GenerateRandomKey();
210 [ + - + - : 1 : CScript parent_locking_script = GetScriptForDestination(PKHash(parent_key.GetPubKey()));
+ - ]
211 [ + - ]: 2 : auto mtx_parent = CreateValidMempoolTransaction(/*input_transaction=*/m_coinbase_txns[0], /*input_vout=*/0,
212 [ + - ]: 1 : /*input_height=*/0, /*input_signing_key=*/coinbaseKey,
213 : : /*output_destination=*/parent_locking_script,
214 [ + - ]: 2 : /*output_amount=*/CAmount(49 * COIN), /*submit=*/false);
215 [ + - ]: 1 : CTransactionRef tx_parent = MakeTransactionRef(mtx_parent);
216 : :
217 : 1 : CKey child_key = GenerateRandomKey();
218 [ + - + - : 1 : CScript child_locking_script = GetScriptForDestination(PKHash(child_key.GetPubKey()));
+ - ]
219 [ + - ]: 2 : auto mtx_child = CreateValidMempoolTransaction(/*input_transaction=*/tx_parent, /*input_vout=*/0,
220 : : /*input_height=*/101, /*input_signing_key=*/parent_key,
221 : : /*output_destination=*/child_locking_script,
222 [ + - ]: 2 : /*output_amount=*/CAmount(48 * COIN), /*submit=*/false);
223 [ + - ]: 1 : CTransactionRef tx_child = MakeTransactionRef(mtx_child);
224 [ + + + - : 3 : Package package_parent_child{tx_parent, tx_child};
- - - - ]
225 [ + - + - ]: 1 : const auto result_parent_child = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool, package_parent_child, /*test_accept=*/true, /*client_maxfeerate=*/{});
226 [ + - - + ]: 1 : if (auto err_parent_child{CheckPackageMempoolAcceptResult(package_parent_child, result_parent_child, /*expect_valid=*/true, nullptr)}) {
227 [ # # # # : 0 : BOOST_ERROR(err_parent_child.value());
# # ]
228 : : } else {
229 : 1 : auto it_parent = result_parent_child.m_tx_results.find(tx_parent->GetWitnessHash());
230 : 1 : auto it_child = result_parent_child.m_tx_results.find(tx_child->GetWitnessHash());
231 : :
232 [ + - + - : 2 : BOOST_CHECK(it_parent->second.m_effective_feerate.value().GetFee(GetVirtualTransactionSize(*tx_parent)) == COIN);
+ - + - +
- + - ]
233 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_parent->second.m_wtxids_fee_calculations.value().size(), 1);
+ - ]
234 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_parent->second.m_wtxids_fee_calculations.value().front(), tx_parent->GetWitnessHash());
+ - ]
235 : :
236 [ + - + - : 2 : BOOST_CHECK(it_child->second.m_effective_feerate.value().GetFee(GetVirtualTransactionSize(*tx_child)) == COIN);
+ - + - +
- + - ]
237 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_child->second.m_wtxids_fee_calculations.value().size(), 1);
+ - ]
238 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_child->second.m_wtxids_fee_calculations.value().front(), tx_child->GetWitnessHash());
+ - ]
239 : 0 : }
240 : : // A single, giant transaction submitted through ProcessNewPackage fails on single tx policy.
241 [ + - ]: 1 : CTransactionRef giant_ptx = create_placeholder_tx(999, 999);
242 [ + - + - : 2 : BOOST_CHECK(GetVirtualTransactionSize(*giant_ptx) > DEFAULT_ANCESTOR_SIZE_LIMIT_KVB * 1000);
+ - + - ]
243 [ + + + - : 2 : Package package_single_giant{giant_ptx};
- - - - ]
244 [ + - + - ]: 1 : auto result_single_large = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool, package_single_giant, /*test_accept=*/true, /*client_maxfeerate=*/{});
245 [ + - - + ]: 1 : if (auto err_single_large{CheckPackageMempoolAcceptResult(package_single_giant, result_single_large, /*expect_valid=*/false, nullptr)}) {
246 [ # # # # : 0 : BOOST_ERROR(err_single_large.value());
# # ]
247 : : } else {
248 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(result_single_large.m_state.GetResult(), PackageValidationResult::PCKG_TX);
249 [ + - + - : 1 : BOOST_CHECK_EQUAL(result_single_large.m_state.GetRejectReason(), "transaction failed");
+ - ]
250 : 1 : auto it_giant_tx = result_single_large.m_tx_results.find(giant_ptx->GetWitnessHash());
251 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_giant_tx->second.m_state.GetRejectReason(), "tx-size");
+ - ]
252 : 0 : }
253 : :
254 : : // Check that mempool size hasn't changed.
255 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), initialPoolSize);
+ - ]
256 [ + - + - : 12 : }
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+ - + - ]
257 : :
258 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(noncontextual_package_tests)
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259 : : {
260 : : // The signatures won't be verified so we can just use a placeholder
261 : 1 : CKey placeholder_key = GenerateRandomKey();
262 [ + - + - : 1 : CScript spk = GetScriptForDestination(PKHash(placeholder_key.GetPubKey()));
+ - ]
263 : 1 : CKey placeholder_key_2 = GenerateRandomKey();
264 [ + - + - : 1 : CScript spk2 = GetScriptForDestination(PKHash(placeholder_key_2.GetPubKey()));
+ - ]
265 : :
266 : : // Parent and Child Package
267 : 1 : {
268 [ + - + - ]: 2 : auto mtx_parent = CreateValidMempoolTransaction(m_coinbase_txns[0], 0, 0, coinbaseKey, spk,
269 [ + - ]: 2 : CAmount(49 * COIN), /*submit=*/false);
270 [ + - ]: 1 : CTransactionRef tx_parent = MakeTransactionRef(mtx_parent);
271 : :
272 [ + - ]: 2 : auto mtx_child = CreateValidMempoolTransaction(tx_parent, 0, 101, placeholder_key, spk2,
273 [ + - ]: 2 : CAmount(48 * COIN), /*submit=*/false);
274 [ + - ]: 1 : CTransactionRef tx_child = MakeTransactionRef(mtx_child);
275 : :
276 [ + - ]: 1 : PackageValidationState state;
277 [ + - + - : 5 : BOOST_CHECK(IsWellFormedPackage({tx_parent, tx_child}, state, /*require_sorted=*/true));
+ - + - +
+ + - - -
- - ]
278 [ + - + - : 5 : BOOST_CHECK(!IsWellFormedPackage({tx_child, tx_parent}, state, /*require_sorted=*/true));
+ - + - +
+ + - - -
- - ]
279 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(state.GetResult(), PackageValidationResult::PCKG_POLICY);
280 [ + - + - : 1 : BOOST_CHECK_EQUAL(state.GetRejectReason(), "package-not-sorted");
+ - ]
281 [ + - + - : 5 : BOOST_CHECK(IsChildWithParents({tx_parent, tx_child}));
+ - + - +
+ + - - -
- - ]
282 [ + - + - : 5 : BOOST_CHECK(IsChildWithParentsTree({tx_parent, tx_child}));
+ - + - +
+ + - - -
- - ]
283 [ + - + - : 6 : BOOST_CHECK(GetPackageHash({tx_parent}) != GetPackageHash({tx_child}));
+ - + - +
- + + + -
+ + + - -
- - - - -
- - ]
284 [ + - + - : 7 : BOOST_CHECK(GetPackageHash({tx_child, tx_child}) != GetPackageHash({tx_child}));
+ - + - +
- + + + -
+ + + - -
- - - - -
- - ]
285 [ + - + - : 8 : BOOST_CHECK(GetPackageHash({tx_child, tx_parent}) != GetPackageHash({tx_child, tx_child}));
+ - + - +
- + + + -
+ + + - -
- - - - -
- - ]
286 [ + - + - : 2 : BOOST_CHECK(!IsChildWithParents({}));
+ - + - ]
287 [ + - + - : 2 : BOOST_CHECK(!IsChildWithParentsTree({}));
+ - ]
288 [ + - + - ]: 4 : }
289 : :
290 : : // 24 Parents and 1 Child
291 : 1 : {
292 : 1 : Package package;
293 [ + - ]: 1 : CMutableTransaction child;
294 [ + + ]: 25 : for (int i{0}; i < 24; ++i) {
295 [ + - + - : 96 : auto parent = MakeTransactionRef(CreateValidMempoolTransaction(m_coinbase_txns[i + 1],
+ - + - ]
296 : 24 : 0, 0, coinbaseKey, spk, CAmount(48 * COIN), false));
297 [ + - ]: 24 : package.emplace_back(parent);
298 [ + - ]: 24 : child.vin.emplace_back(COutPoint(parent->GetHash(), 0));
299 : 24 : }
300 [ + - ]: 1 : child.vout.emplace_back(47 * COIN, spk2);
301 : :
302 : : // The child must be in the package.
303 [ + - + - : 2 : BOOST_CHECK(!IsChildWithParents(package));
+ - ]
304 : :
305 : : // The parents can be in any order.
306 : 1 : FastRandomContext rng;
307 : 1 : std::shuffle(package.begin(), package.end(), rng);
308 [ + - + - : 2 : package.push_back(MakeTransactionRef(child));
- + ]
309 : :
310 [ + - ]: 1 : PackageValidationState state;
311 [ + - + - : 2 : BOOST_CHECK(IsWellFormedPackage(package, state, /*require_sorted=*/true));
+ - + - ]
312 [ + - + - : 2 : BOOST_CHECK(IsChildWithParents(package));
+ - + - ]
313 [ + - + - : 2 : BOOST_CHECK(IsChildWithParentsTree(package));
+ - ]
314 : :
315 : 1 : package.erase(package.begin());
316 [ + - + - : 2 : BOOST_CHECK(IsChildWithParents(package));
+ - + - ]
317 : :
318 : : // The package cannot have unrelated transactions.
319 [ + - ]: 1 : package.insert(package.begin(), m_coinbase_txns[0]);
320 [ + - + - : 2 : BOOST_CHECK(!IsChildWithParents(package));
+ - ]
321 : 2 : }
322 : :
323 : : // 2 Parents and 1 Child where one parent depends on the other.
324 : 1 : {
325 [ + - ]: 1 : CMutableTransaction mtx_parent;
326 [ + - ]: 1 : mtx_parent.vin.emplace_back(COutPoint(m_coinbase_txns[0]->GetHash(), 0));
327 [ + - ]: 1 : mtx_parent.vout.emplace_back(20 * COIN, spk);
328 [ + - ]: 1 : mtx_parent.vout.emplace_back(20 * COIN, spk2);
329 [ + - ]: 1 : CTransactionRef tx_parent = MakeTransactionRef(mtx_parent);
330 : :
331 [ + - ]: 1 : CMutableTransaction mtx_parent_also_child;
332 [ + - ]: 1 : mtx_parent_also_child.vin.emplace_back(COutPoint(tx_parent->GetHash(), 0));
333 [ + - ]: 1 : mtx_parent_also_child.vout.emplace_back(20 * COIN, spk);
334 [ + - ]: 1 : CTransactionRef tx_parent_also_child = MakeTransactionRef(mtx_parent_also_child);
335 : :
336 [ + - ]: 1 : CMutableTransaction mtx_child;
337 [ + - ]: 1 : mtx_child.vin.emplace_back(COutPoint(tx_parent->GetHash(), 1));
338 [ + - ]: 1 : mtx_child.vin.emplace_back(COutPoint(tx_parent_also_child->GetHash(), 0));
339 [ + - ]: 1 : mtx_child.vout.emplace_back(39 * COIN, spk);
340 [ + - ]: 1 : CTransactionRef tx_child = MakeTransactionRef(mtx_child);
341 : :
342 [ + - ]: 1 : PackageValidationState state;
343 [ + - + - : 5 : BOOST_CHECK(IsChildWithParents({tx_parent, tx_parent_also_child}));
+ - + - +
+ + - - -
- - ]
344 [ + - + - : 5 : BOOST_CHECK(IsChildWithParents({tx_parent, tx_child}));
+ - + - +
+ + - - -
- - ]
345 [ + - + - : 6 : BOOST_CHECK(IsChildWithParents({tx_parent, tx_parent_also_child, tx_child}));
+ - + - +
+ + - - -
- - ]
346 [ + - + - : 6 : BOOST_CHECK(!IsChildWithParentsTree({tx_parent, tx_parent_also_child, tx_child}));
+ - + - +
+ + - - -
- - ]
347 : : // IsChildWithParents does not detect unsorted parents.
348 [ + - + - : 6 : BOOST_CHECK(IsChildWithParents({tx_parent_also_child, tx_parent, tx_child}));
+ - + - +
+ + - - -
- - ]
349 [ + - + - : 6 : BOOST_CHECK(IsWellFormedPackage({tx_parent, tx_parent_also_child, tx_child}, state, /*require_sorted=*/true));
+ - + - +
+ + - - -
- - ]
350 [ + - + - : 6 : BOOST_CHECK(!IsWellFormedPackage({tx_parent_also_child, tx_parent, tx_child}, state, /*require_sorted=*/true));
+ - + - +
+ + - - -
- - ]
351 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(state.GetResult(), PackageValidationResult::PCKG_POLICY);
352 [ + - + - : 1 : BOOST_CHECK_EQUAL(state.GetRejectReason(), "package-not-sorted");
+ - ]
353 [ + - + - : 7 : }
+ - ]
354 [ + - + - : 54 : }
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - ]
355 : :
356 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(package_submission_tests)
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- ]
357 : : {
358 : 1 : LOCK(cs_main);
359 [ + - ]: 1 : unsigned int expected_pool_size = m_node.mempool->size();
360 : 1 : CKey parent_key = GenerateRandomKey();
361 [ + - + - : 1 : CScript parent_locking_script = GetScriptForDestination(PKHash(parent_key.GetPubKey()));
+ - ]
362 : :
363 : : // Unrelated transactions are not allowed in package submission.
364 : 1 : Package package_unrelated;
365 [ + + ]: 11 : for (size_t i{0}; i < 10; ++i) {
366 [ + - ]: 20 : auto mtx = CreateValidMempoolTransaction(/*input_transaction=*/m_coinbase_txns[i + 25], /*input_vout=*/0,
367 [ + - ]: 10 : /*input_height=*/0, /*input_signing_key=*/coinbaseKey,
368 : : /*output_destination=*/parent_locking_script,
369 [ + - ]: 20 : /*output_amount=*/CAmount(49 * COIN), /*submit=*/false);
370 [ + - + - ]: 30 : package_unrelated.emplace_back(MakeTransactionRef(mtx));
371 : 10 : }
372 [ + - ]: 1 : auto result_unrelated_submit = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
373 [ + - + - ]: 1 : package_unrelated, /*test_accept=*/false, /*client_maxfeerate=*/{});
374 : : // We don't expect m_tx_results for each transaction when basic sanity checks haven't passed.
375 [ + - + - : 2 : BOOST_CHECK(result_unrelated_submit.m_state.IsInvalid());
+ - ]
376 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(result_unrelated_submit.m_state.GetResult(), PackageValidationResult::PCKG_POLICY);
377 [ + - + - : 1 : BOOST_CHECK_EQUAL(result_unrelated_submit.m_state.GetRejectReason(), "package-not-child-with-parents");
+ - ]
378 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
379 : :
380 : : // Parent and Child (and Grandchild) Package
381 : 1 : Package package_parent_child;
382 : 1 : Package package_3gen;
383 [ + - ]: 2 : auto mtx_parent = CreateValidMempoolTransaction(/*input_transaction=*/m_coinbase_txns[0], /*input_vout=*/0,
384 [ + - ]: 1 : /*input_height=*/0, /*input_signing_key=*/coinbaseKey,
385 : : /*output_destination=*/parent_locking_script,
386 [ + - ]: 2 : /*output_amount=*/CAmount(49 * COIN), /*submit=*/false);
387 [ + - ]: 1 : CTransactionRef tx_parent = MakeTransactionRef(mtx_parent);
388 [ + - ]: 1 : package_parent_child.push_back(tx_parent);
389 [ + - ]: 1 : package_3gen.push_back(tx_parent);
390 : :
391 : 1 : CKey child_key = GenerateRandomKey();
392 [ + - + - : 1 : CScript child_locking_script = GetScriptForDestination(PKHash(child_key.GetPubKey()));
+ - ]
393 [ + - ]: 2 : auto mtx_child = CreateValidMempoolTransaction(/*input_transaction=*/tx_parent, /*input_vout=*/0,
394 : : /*input_height=*/101, /*input_signing_key=*/parent_key,
395 : : /*output_destination=*/child_locking_script,
396 [ + - ]: 2 : /*output_amount=*/CAmount(48 * COIN), /*submit=*/false);
397 [ + - ]: 1 : CTransactionRef tx_child = MakeTransactionRef(mtx_child);
398 [ + - ]: 1 : package_parent_child.push_back(tx_child);
399 [ + - ]: 1 : package_3gen.push_back(tx_child);
400 : :
401 : 1 : CKey grandchild_key = GenerateRandomKey();
402 [ + - + - : 1 : CScript grandchild_locking_script = GetScriptForDestination(PKHash(grandchild_key.GetPubKey()));
+ - ]
403 [ + - ]: 2 : auto mtx_grandchild = CreateValidMempoolTransaction(/*input_transaction=*/tx_child, /*input_vout=*/0,
404 : : /*input_height=*/101, /*input_signing_key=*/child_key,
405 : : /*output_destination=*/grandchild_locking_script,
406 [ + - ]: 2 : /*output_amount=*/CAmount(47 * COIN), /*submit=*/false);
407 [ + - ]: 1 : CTransactionRef tx_grandchild = MakeTransactionRef(mtx_grandchild);
408 [ + - ]: 1 : package_3gen.push_back(tx_grandchild);
409 : :
410 : : // 3 Generations is not allowed.
411 : 1 : {
412 [ + - ]: 1 : auto result_3gen_submit = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
413 [ + - + - ]: 1 : package_3gen, /*test_accept=*/false, /*client_maxfeerate=*/{});
414 [ + - + - : 2 : BOOST_CHECK(result_3gen_submit.m_state.IsInvalid());
+ - ]
415 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(result_3gen_submit.m_state.GetResult(), PackageValidationResult::PCKG_POLICY);
416 [ + - + - : 1 : BOOST_CHECK_EQUAL(result_3gen_submit.m_state.GetRejectReason(), "package-not-child-with-parents");
+ - ]
417 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
418 : 1 : }
419 : :
420 : : // Parent and child package where transactions are invalid for reasons other than fee and
421 : : // missing inputs, so the package validation isn't expected to happen.
422 : 1 : {
423 : 1 : CScriptWitness bad_witness;
424 [ + - ]: 1 : bad_witness.stack.emplace_back(1);
425 [ + - ]: 1 : CMutableTransaction mtx_parent_invalid{mtx_parent};
426 [ + - ]: 1 : mtx_parent_invalid.vin[0].scriptWitness = bad_witness;
427 [ + - ]: 1 : CTransactionRef tx_parent_invalid = MakeTransactionRef(mtx_parent_invalid);
428 [ + + + - : 3 : Package package_invalid_parent{tx_parent_invalid, tx_child};
- - - - ]
429 [ + - ]: 1 : auto result_quit_early = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
430 [ + - + - ]: 1 : package_invalid_parent, /*test_accept=*/ false, /*client_maxfeerate=*/{});
431 [ + - - + ]: 1 : if (auto err_parent_invalid{CheckPackageMempoolAcceptResult(package_invalid_parent, result_quit_early, /*expect_valid=*/false, m_node.mempool.get())}) {
432 [ # # # # : 0 : BOOST_ERROR(err_parent_invalid.value());
# # ]
433 : : } else {
434 : 1 : auto it_parent = result_quit_early.m_tx_results.find(tx_parent_invalid->GetWitnessHash());
435 : 1 : auto it_child = result_quit_early.m_tx_results.find(tx_child->GetWitnessHash());
436 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_parent->second.m_state.GetResult(), TxValidationResult::TX_WITNESS_MUTATED);
437 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_parent->second.m_state.GetRejectReason(), "bad-witness-nonstandard");
+ - ]
438 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_child->second.m_state.GetResult(), TxValidationResult::TX_MISSING_INPUTS);
439 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_child->second.m_state.GetRejectReason(), "bad-txns-inputs-missingorspent");
+ - ]
440 : 0 : }
441 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(result_quit_early.m_state.GetResult(), PackageValidationResult::PCKG_TX);
442 [ + - ]: 3 : }
443 : :
444 : : // Child with missing parent.
445 [ + - ]: 1 : mtx_child.vin.emplace_back(COutPoint(package_unrelated[0]->GetHash(), 0));
446 : 1 : Package package_missing_parent;
447 [ + - ]: 1 : package_missing_parent.push_back(tx_parent);
448 [ + - + - : 2 : package_missing_parent.push_back(MakeTransactionRef(mtx_child));
- + ]
449 : 1 : {
450 [ + - ]: 1 : const auto result_missing_parent = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
451 [ + - + - ]: 1 : package_missing_parent, /*test_accept=*/false, /*client_maxfeerate=*/{});
452 [ + - + - : 2 : BOOST_CHECK(result_missing_parent.m_state.IsInvalid());
+ - ]
453 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(result_missing_parent.m_state.GetResult(), PackageValidationResult::PCKG_POLICY);
454 [ + - + - : 1 : BOOST_CHECK_EQUAL(result_missing_parent.m_state.GetRejectReason(), "package-not-child-with-unconfirmed-parents");
+ - ]
455 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
456 : 1 : }
457 : :
458 : : // Submit package with parent + child.
459 : 1 : {
460 [ + - ]: 1 : const auto submit_parent_child = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
461 [ + - + - ]: 1 : package_parent_child, /*test_accept=*/false, /*client_maxfeerate=*/{});
462 : 1 : expected_pool_size += 2;
463 [ + - + - : 2 : BOOST_CHECK_MESSAGE(submit_parent_child.m_state.IsValid(),
+ - + - ]
464 : : "Package validation unexpectedly failed: " << submit_parent_child.m_state.GetRejectReason());
465 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(submit_parent_child.m_tx_results.size(), package_parent_child.size());
466 : 1 : auto it_parent = submit_parent_child.m_tx_results.find(tx_parent->GetWitnessHash());
467 : 1 : auto it_child = submit_parent_child.m_tx_results.find(tx_child->GetWitnessHash());
468 [ + - + - : 2 : BOOST_CHECK(it_parent != submit_parent_child.m_tx_results.end());
+ - ]
469 [ + - + - : 2 : BOOST_CHECK(it_parent->second.m_state.IsValid());
+ - ]
470 [ + - + - : 3 : BOOST_CHECK(it_parent->second.m_effective_feerate == CFeeRate(1 * COIN, GetVirtualTransactionSize(*tx_parent)));
+ - + - +
- + - ]
471 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_parent->second.m_wtxids_fee_calculations.value().size(), 1);
+ - ]
472 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_parent->second.m_wtxids_fee_calculations.value().front(), tx_parent->GetWitnessHash());
+ - ]
473 [ + - + - : 3 : BOOST_CHECK(it_child->second.m_effective_feerate == CFeeRate(1 * COIN, GetVirtualTransactionSize(*tx_child)));
+ - + - +
- + - ]
474 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_child->second.m_wtxids_fee_calculations.value().size(), 1);
+ - ]
475 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_child->second.m_wtxids_fee_calculations.value().front(), tx_child->GetWitnessHash());
+ - ]
476 : :
477 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
478 : 1 : }
479 : :
480 : : // Already-in-mempool transactions should be detected and de-duplicated.
481 : 1 : {
482 [ + - ]: 1 : const auto submit_deduped = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
483 [ + - + - ]: 1 : package_parent_child, /*test_accept=*/false, /*client_maxfeerate=*/{});
484 [ + - - + ]: 1 : if (auto err_deduped{CheckPackageMempoolAcceptResult(package_parent_child, submit_deduped, /*expect_valid=*/true, m_node.mempool.get())}) {
485 [ # # # # : 0 : BOOST_ERROR(err_deduped.value());
# # ]
486 : : } else {
487 : 1 : auto it_parent_deduped = submit_deduped.m_tx_results.find(tx_parent->GetWitnessHash());
488 : 1 : auto it_child_deduped = submit_deduped.m_tx_results.find(tx_child->GetWitnessHash());
489 [ + - + - : 2 : BOOST_CHECK(it_parent_deduped->second.m_result_type == MempoolAcceptResult::ResultType::MEMPOOL_ENTRY);
+ - ]
490 [ + - + - ]: 2 : BOOST_CHECK(it_child_deduped->second.m_result_type == MempoolAcceptResult::ResultType::MEMPOOL_ENTRY);
491 : 0 : }
492 : :
493 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
494 : 1 : }
495 [ + - + - : 11 : }
- + + - +
- + - +
- ]
496 : :
497 : : // Tests for packages containing a single transaction
498 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(package_single_tx)
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- ]
499 : : {
500 : : // Mine blocks to mature coinbases.
501 : 1 : mineBlocks(3);
502 : 1 : LOCK(cs_main);
503 [ + - ]: 1 : auto expected_pool_size{m_node.mempool->size()};
504 : :
505 : 1 : const CAmount high_fee{1000};
506 : :
507 : : // No unconfirmed parents
508 : 1 : CKey single_key = GenerateRandomKey();
509 [ + - + - : 1 : CScript single_locking_script = GetScriptForDestination(PKHash(single_key.GetPubKey()));
+ - ]
510 [ + - ]: 2 : auto mtx_single = CreateValidMempoolTransaction(/*input_transaction=*/m_coinbase_txns[0], /*input_vout=*/0,
511 [ + - ]: 1 : /*input_height=*/0, /*input_signing_key=*/coinbaseKey,
512 : : /*output_destination=*/single_locking_script,
513 [ + - ]: 2 : /*output_amount=*/CAmount(49 * COIN), /*submit=*/false);
514 [ + - ]: 1 : CTransactionRef tx_single = MakeTransactionRef(mtx_single);
515 [ + + + - : 2 : Package package_tx_single{tx_single};
- - - - ]
516 [ + - ]: 1 : const auto result_single_tx = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
517 [ + - + - ]: 1 : package_tx_single, /*test_accept=*/false, /*client_maxfeerate=*/{});
518 : 1 : expected_pool_size += 1;
519 [ + - + - : 2 : BOOST_CHECK_MESSAGE(result_single_tx.m_state.IsValid(),
+ - + - ]
520 : : "Package validation unexpectedly failed: " << result_single_tx.m_state.ToString());
521 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
522 : :
523 : : // Parent and Child. Both submitted by themselves through the ProcessNewPackage interface.
524 : 1 : CKey parent_key = GenerateRandomKey();
525 [ + - + - : 1 : CScript parent_locking_script = GetScriptForDestination(WitnessV0KeyHash(parent_key.GetPubKey()));
+ - ]
526 [ + - + - ]: 2 : auto mtx_parent = CreateValidMempoolTransaction(/*input_transaction=*/m_coinbase_txns[1], /*input_vout=*/0,
527 : : /*input_height=*/0, /*input_signing_key=*/coinbaseKey,
528 : : /*output_destination=*/parent_locking_script,
529 [ + - ]: 2 : /*output_amount=*/CAmount(50 * COIN) - high_fee, /*submit=*/false);
530 [ + - ]: 1 : CTransactionRef tx_parent = MakeTransactionRef(mtx_parent);
531 [ + + + - : 2 : Package package_just_parent{tx_parent};
- - - - ]
532 [ + - + - ]: 1 : const auto result_just_parent = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool, package_just_parent, /*test_accept=*/false, /*client_maxfeerate=*/{});
533 [ + - - + ]: 1 : if (auto err_parent_child{CheckPackageMempoolAcceptResult(package_just_parent, result_just_parent, /*expect_valid=*/true, nullptr)}) {
534 [ # # # # : 0 : BOOST_ERROR(err_parent_child.value());
# # ]
535 : : } else {
536 : 1 : auto it_parent = result_just_parent.m_tx_results.find(tx_parent->GetWitnessHash());
537 [ + - + - : 2 : BOOST_CHECK_MESSAGE(it_parent->second.m_state.IsValid(), it_parent->second.m_state.ToString());
+ - ]
538 [ + - + - : 2 : BOOST_CHECK(it_parent->second.m_effective_feerate.value().GetFee(GetVirtualTransactionSize(*tx_parent)) == high_fee);
+ - + - +
- + - ]
539 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_parent->second.m_wtxids_fee_calculations.value().size(), 1);
+ - ]
540 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_parent->second.m_wtxids_fee_calculations.value().front(), tx_parent->GetWitnessHash());
+ - ]
541 : 0 : }
542 : 1 : expected_pool_size += 1;
543 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
544 : :
545 : 1 : CKey child_key = GenerateRandomKey();
546 [ + - + - : 1 : CScript child_locking_script = GetScriptForDestination(WitnessV0KeyHash(child_key.GetPubKey()));
+ - ]
547 [ + - ]: 2 : auto mtx_child = CreateValidMempoolTransaction(/*input_transaction=*/tx_parent, /*input_vout=*/0,
548 : : /*input_height=*/101, /*input_signing_key=*/parent_key,
549 : : /*output_destination=*/child_locking_script,
550 [ + - ]: 2 : /*output_amount=*/CAmount(50 * COIN) - 2 * high_fee, /*submit=*/false);
551 [ + - ]: 1 : CTransactionRef tx_child = MakeTransactionRef(mtx_child);
552 [ + + + - : 2 : Package package_just_child{tx_child};
- - - - ]
553 [ + - + - ]: 1 : const auto result_just_child = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool, package_just_child, /*test_accept=*/false, /*client_maxfeerate=*/{});
554 [ + - - + ]: 1 : if (auto err_parent_child{CheckPackageMempoolAcceptResult(package_just_child, result_just_child, /*expect_valid=*/true, nullptr)}) {
555 [ # # # # : 0 : BOOST_ERROR(err_parent_child.value());
# # ]
556 : : } else {
557 : 1 : auto it_child = result_just_child.m_tx_results.find(tx_child->GetWitnessHash());
558 [ + - + - : 2 : BOOST_CHECK_MESSAGE(it_child->second.m_state.IsValid(), it_child->second.m_state.ToString());
+ - ]
559 [ + - + - : 2 : BOOST_CHECK(it_child->second.m_effective_feerate.value().GetFee(GetVirtualTransactionSize(*tx_child)) == high_fee);
+ - + - +
- + - ]
560 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_child->second.m_wtxids_fee_calculations.value().size(), 1);
+ - ]
561 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_child->second.m_wtxids_fee_calculations.value().front(), tx_child->GetWitnessHash());
+ - ]
562 : 0 : }
563 : 1 : expected_pool_size += 1;
564 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
565 : :
566 : : // Too-low fee to RBF tx_single
567 [ + - + - ]: 2 : auto mtx_single_low_fee = CreateValidMempoolTransaction(/*input_transaction=*/m_coinbase_txns[0], /*input_vout=*/0,
568 : : /*input_height=*/0, /*input_signing_key=*/coinbaseKey,
569 : : /*output_destination=*/single_locking_script,
570 [ + - ]: 2 : /*output_amount=*/CAmount(49 * COIN - 1), /*submit=*/false);
571 [ + - ]: 1 : CTransactionRef tx_single_low_fee = MakeTransactionRef(mtx_single_low_fee);
572 [ + + + - : 2 : Package package_tx_single_low_fee{tx_single_low_fee};
- - - - ]
573 [ + - ]: 1 : const auto result_single_tx_low_fee = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
574 [ + - + - ]: 1 : package_tx_single_low_fee, /*test_accept=*/false, /*client_maxfeerate=*/{});
575 : :
576 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
577 : :
578 [ + - + - : 2 : BOOST_CHECK(!result_single_tx_low_fee.m_state.IsValid());
+ - ]
579 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(result_single_tx_low_fee.m_state.GetResult(), PackageValidationResult::PCKG_TX);
580 : 1 : auto it_low_fee = result_single_tx_low_fee.m_tx_results.find(tx_single_low_fee->GetWitnessHash());
581 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_low_fee->second.m_state.GetResult(), TxValidationResult::TX_RECONSIDERABLE);
582 [ + - - + ]: 1 : if (auto err_single{CheckPackageMempoolAcceptResult(package_tx_single_low_fee, result_single_tx_low_fee, /*expect_valid=*/false, m_node.mempool.get())}) {
583 [ # # # # : 0 : BOOST_ERROR(err_single.value());
# # ]
584 : 0 : }
585 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
586 [ + - - + : 18 : }
+ - - + +
- - + + -
- + + - +
- + - + -
+ - ]
587 : :
588 : : // Tests for packages containing transactions that have same-txid-different-witness equivalents in
589 : : // the mempool.
590 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(package_witness_swap_tests)
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- ]
591 : : {
592 : : // Mine blocks to mature coinbases.
593 : 1 : mineBlocks(5);
594 : 1 : MockMempoolMinFee(CFeeRate(5000));
595 : 1 : LOCK(cs_main);
596 : :
597 : : // Transactions with a same-txid-different-witness transaction in the mempool should be ignored,
598 : : // and the mempool entry's wtxid returned.
599 [ + - + - ]: 1 : CScript witnessScript = CScript() << OP_DROP << OP_TRUE;
600 [ + - + - ]: 1 : CScript scriptPubKey = GetScriptForDestination(WitnessV0ScriptHash(witnessScript));
601 [ + - ]: 2 : auto mtx_parent = CreateValidMempoolTransaction(/*input_transaction=*/m_coinbase_txns[0], /*input_vout=*/0,
602 [ + - ]: 1 : /*input_height=*/0, /*input_signing_key=*/coinbaseKey,
603 : : /*output_destination=*/scriptPubKey,
604 [ + - ]: 2 : /*output_amount=*/CAmount(49 * COIN), /*submit=*/false);
605 [ + - ]: 1 : CTransactionRef ptx_parent = MakeTransactionRef(mtx_parent);
606 : :
607 : : // Make two children with the same txid but different witnesses.
608 : 1 : CScriptWitness witness1;
609 [ + - ]: 1 : witness1.stack.emplace_back(1);
610 [ - + + - ]: 1 : witness1.stack.emplace_back(witnessScript.begin(), witnessScript.end());
611 : :
612 [ + - ]: 1 : CScriptWitness witness2(witness1);
613 [ + - ]: 1 : witness2.stack.emplace_back(2);
614 [ - + + - ]: 1 : witness2.stack.emplace_back(witnessScript.begin(), witnessScript.end());
615 : :
616 : 1 : CKey child_key = GenerateRandomKey();
617 [ + - + - : 1 : CScript child_locking_script = GetScriptForDestination(WitnessV0KeyHash(child_key.GetPubKey()));
+ - ]
618 [ + - ]: 1 : CMutableTransaction mtx_child1;
619 : 1 : mtx_child1.version = 1;
620 [ + - ]: 1 : mtx_child1.vin.resize(1);
621 : 1 : mtx_child1.vin[0].prevout.hash = ptx_parent->GetHash();
622 : 1 : mtx_child1.vin[0].prevout.n = 0;
623 : 1 : mtx_child1.vin[0].scriptSig = CScript();
624 [ + - ]: 1 : mtx_child1.vin[0].scriptWitness = witness1;
625 [ + - ]: 1 : mtx_child1.vout.resize(1);
626 : 1 : mtx_child1.vout[0].nValue = CAmount(48 * COIN);
627 : 1 : mtx_child1.vout[0].scriptPubKey = child_locking_script;
628 : :
629 [ + - ]: 1 : CMutableTransaction mtx_child2{mtx_child1};
630 [ + - ]: 1 : mtx_child2.vin[0].scriptWitness = witness2;
631 : :
632 [ + - ]: 1 : CTransactionRef ptx_child1 = MakeTransactionRef(mtx_child1);
633 [ + - ]: 1 : CTransactionRef ptx_child2 = MakeTransactionRef(mtx_child2);
634 : :
635 : : // child1 and child2 have the same txid
636 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(ptx_child1->GetHash(), ptx_child2->GetHash());
637 : : // child1 and child2 have different wtxids
638 [ + - + - : 2 : BOOST_CHECK(ptx_child1->GetWitnessHash() != ptx_child2->GetWitnessHash());
+ - ]
639 : : // Check that they have different package hashes
640 [ + - + - : 8 : BOOST_CHECK(GetPackageHash({ptx_parent, ptx_child1}) != GetPackageHash({ptx_parent, ptx_child2}));
+ - + - +
- + + + -
+ + + - -
- - - - -
- - ]
641 : :
642 : : // Try submitting Package1{parent, child1} and Package2{parent, child2} where the children are
643 : : // same-txid-different-witness.
644 : 1 : {
645 [ + + + - : 3 : Package package_parent_child1{ptx_parent, ptx_child1};
- - - - ]
646 [ + - ]: 1 : const auto submit_witness1 = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
647 [ + - + - ]: 1 : package_parent_child1, /*test_accept=*/false, /*client_maxfeerate=*/{});
648 [ + - - + ]: 1 : if (auto err_witness1{CheckPackageMempoolAcceptResult(package_parent_child1, submit_witness1, /*expect_valid=*/true, m_node.mempool.get())}) {
649 [ # # # # : 0 : BOOST_ERROR(err_witness1.value());
# # ]
650 : 0 : }
651 : :
652 : : // Child2 would have been validated individually.
653 [ + + + - : 3 : Package package_parent_child2{ptx_parent, ptx_child2};
- - - - ]
654 [ + - ]: 1 : const auto submit_witness2 = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
655 [ + - + - ]: 1 : package_parent_child2, /*test_accept=*/false, /*client_maxfeerate=*/{});
656 [ + - - + ]: 1 : if (auto err_witness2{CheckPackageMempoolAcceptResult(package_parent_child2, submit_witness2, /*expect_valid=*/true, m_node.mempool.get())}) {
657 [ # # # # : 0 : BOOST_ERROR(err_witness2.value());
# # ]
658 : : } else {
659 : 1 : auto it_parent2_deduped = submit_witness2.m_tx_results.find(ptx_parent->GetWitnessHash());
660 : 1 : auto it_child2 = submit_witness2.m_tx_results.find(ptx_child2->GetWitnessHash());
661 [ + - + - : 2 : BOOST_CHECK(it_parent2_deduped->second.m_result_type == MempoolAcceptResult::ResultType::MEMPOOL_ENTRY);
+ - ]
662 [ + - + - : 2 : BOOST_CHECK(it_child2->second.m_result_type == MempoolAcceptResult::ResultType::DIFFERENT_WITNESS);
+ - ]
663 [ + - + - : 1 : BOOST_CHECK_EQUAL(ptx_child1->GetWitnessHash(), it_child2->second.m_other_wtxid.value());
+ - ]
664 : 0 : }
665 : :
666 : : // Deduplication should work when wtxid != txid. Submit package with the already-in-mempool
667 : : // transactions again, which should not fail.
668 [ + - ]: 1 : const auto submit_segwit_dedup = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
669 [ + - + - ]: 1 : package_parent_child1, /*test_accept=*/false, /*client_maxfeerate=*/{});
670 [ + - - + ]: 1 : if (auto err_segwit_dedup{CheckPackageMempoolAcceptResult(package_parent_child1, submit_segwit_dedup, /*expect_valid=*/true, m_node.mempool.get())}) {
671 [ # # # # : 0 : BOOST_ERROR(err_segwit_dedup.value());
# # ]
672 : : } else {
673 : 1 : auto it_parent_dup = submit_segwit_dedup.m_tx_results.find(ptx_parent->GetWitnessHash());
674 : 1 : auto it_child_dup = submit_segwit_dedup.m_tx_results.find(ptx_child1->GetWitnessHash());
675 [ + - + - : 2 : BOOST_CHECK(it_parent_dup->second.m_result_type == MempoolAcceptResult::ResultType::MEMPOOL_ENTRY);
+ - ]
676 [ + - + - ]: 2 : BOOST_CHECK(it_child_dup->second.m_result_type == MempoolAcceptResult::ResultType::MEMPOOL_ENTRY);
677 : 0 : }
678 : 1 : }
679 : :
680 : : // Try submitting Package1{child2, grandchild} where child2 is same-txid-different-witness as
681 : : // the in-mempool transaction, child1. Since child1 exists in the mempool and its outputs are
682 : : // available, child2 should be ignored and grandchild should be accepted.
683 : : //
684 : : // This tests a potential censorship vector in which an attacker broadcasts a competing package
685 : : // where a parent's witness is mutated. The honest package should be accepted despite the fact
686 : : // that we don't allow witness replacement.
687 : 1 : CKey grandchild_key = GenerateRandomKey();
688 [ + - + - : 1 : CScript grandchild_locking_script = GetScriptForDestination(WitnessV0KeyHash(grandchild_key.GetPubKey()));
+ - ]
689 [ + - ]: 2 : auto mtx_grandchild = CreateValidMempoolTransaction(/*input_transaction=*/ptx_child2, /*input_vout=*/0,
690 : : /*input_height=*/0, /*input_signing_key=*/child_key,
691 : : /*output_destination=*/grandchild_locking_script,
692 [ + - ]: 2 : /*output_amount=*/CAmount(47 * COIN), /*submit=*/false);
693 [ + - ]: 1 : CTransactionRef ptx_grandchild = MakeTransactionRef(mtx_grandchild);
694 : : // Check that they have different package hashes
695 [ + - + - : 8 : BOOST_CHECK(GetPackageHash({ptx_child1, ptx_grandchild}) != GetPackageHash({ptx_child2, ptx_grandchild}));
+ - + - +
- + + + -
+ + + - -
- - - - -
- - ]
696 : : // We already submitted child1 above.
697 : 1 : {
698 [ + + + - : 3 : Package package_child2_grandchild{ptx_child2, ptx_grandchild};
- - - - ]
699 [ + - ]: 1 : const auto submit_spend_ignored = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
700 [ + - + - ]: 1 : package_child2_grandchild, /*test_accept=*/false, /*client_maxfeerate=*/{});
701 [ + - - + ]: 1 : if (auto err_spend_ignored{CheckPackageMempoolAcceptResult(package_child2_grandchild, submit_spend_ignored, /*expect_valid=*/true, m_node.mempool.get())}) {
702 [ # # # # : 0 : BOOST_ERROR(err_spend_ignored.value());
# # ]
703 : : } else {
704 : 1 : auto it_child2_ignored = submit_spend_ignored.m_tx_results.find(ptx_child2->GetWitnessHash());
705 : 1 : auto it_grandchild = submit_spend_ignored.m_tx_results.find(ptx_grandchild->GetWitnessHash());
706 [ + - + - : 2 : BOOST_CHECK(it_child2_ignored->second.m_result_type == MempoolAcceptResult::ResultType::DIFFERENT_WITNESS);
+ - ]
707 [ + - + - ]: 2 : BOOST_CHECK(it_grandchild->second.m_result_type == MempoolAcceptResult::ResultType::VALID);
708 : 0 : }
709 : 1 : }
710 : :
711 : : // A package Package{parent1, parent2, parent3, child} where the parents are a mixture of
712 : : // identical-tx-in-mempool, same-txid-different-witness-in-mempool, and new transactions.
713 : 1 : Package package_mixed;
714 : :
715 : : // Give all the parents anyone-can-spend scripts so we don't have to deal with signing the child.
716 [ + - ]: 1 : CScript acs_script = CScript() << OP_TRUE;
717 [ + - + - ]: 1 : CScript acs_spk = GetScriptForDestination(WitnessV0ScriptHash(acs_script));
718 : 1 : CScriptWitness acs_witness;
719 [ - + + - ]: 1 : acs_witness.stack.emplace_back(acs_script.begin(), acs_script.end());
720 : :
721 : : // parent1 will already be in the mempool
722 [ + - + - ]: 2 : auto mtx_parent1 = CreateValidMempoolTransaction(/*input_transaction=*/m_coinbase_txns[1], /*input_vout=*/0,
723 : : /*input_height=*/0, /*input_signing_key=*/coinbaseKey,
724 : : /*output_destination=*/acs_spk,
725 [ + - ]: 2 : /*output_amount=*/CAmount(49 * COIN), /*submit=*/true);
726 [ + - ]: 1 : CTransactionRef ptx_parent1 = MakeTransactionRef(mtx_parent1);
727 [ + - ]: 1 : package_mixed.push_back(ptx_parent1);
728 : :
729 : : // parent2 will have a same-txid-different-witness tx already in the mempool
730 [ + - + - ]: 1 : CScript grandparent2_script = CScript() << OP_DROP << OP_TRUE;
731 [ + - + - ]: 1 : CScript grandparent2_spk = GetScriptForDestination(WitnessV0ScriptHash(grandparent2_script));
732 : 1 : CScriptWitness parent2_witness1;
733 [ + - ]: 1 : parent2_witness1.stack.emplace_back(1);
734 [ - + + - ]: 1 : parent2_witness1.stack.emplace_back(grandparent2_script.begin(), grandparent2_script.end());
735 : 1 : CScriptWitness parent2_witness2;
736 [ + - ]: 1 : parent2_witness2.stack.emplace_back(2);
737 [ - + + - ]: 1 : parent2_witness2.stack.emplace_back(grandparent2_script.begin(), grandparent2_script.end());
738 : :
739 : : // Create grandparent2 creating an output with multiple spending paths. Submit to mempool.
740 [ + - + - ]: 2 : auto mtx_grandparent2 = CreateValidMempoolTransaction(/*input_transaction=*/m_coinbase_txns[2], /*input_vout=*/0,
741 : : /*input_height=*/0, /*input_signing_key=*/coinbaseKey,
742 : : /*output_destination=*/grandparent2_spk,
743 [ + - ]: 2 : /*output_amount=*/CAmount(49 * COIN), /*submit=*/true);
744 [ + - ]: 1 : CTransactionRef ptx_grandparent2 = MakeTransactionRef(mtx_grandparent2);
745 : :
746 [ + - ]: 1 : CMutableTransaction mtx_parent2_v1;
747 : 1 : mtx_parent2_v1.version = 1;
748 [ + - ]: 1 : mtx_parent2_v1.vin.resize(1);
749 : 1 : mtx_parent2_v1.vin[0].prevout.hash = ptx_grandparent2->GetHash();
750 : 1 : mtx_parent2_v1.vin[0].prevout.n = 0;
751 : 1 : mtx_parent2_v1.vin[0].scriptSig = CScript();
752 [ + - ]: 1 : mtx_parent2_v1.vin[0].scriptWitness = parent2_witness1;
753 [ + - ]: 1 : mtx_parent2_v1.vout.resize(1);
754 : 1 : mtx_parent2_v1.vout[0].nValue = CAmount(48 * COIN);
755 : 1 : mtx_parent2_v1.vout[0].scriptPubKey = acs_spk;
756 : :
757 [ + - ]: 1 : CMutableTransaction mtx_parent2_v2{mtx_parent2_v1};
758 [ + - ]: 1 : mtx_parent2_v2.vin[0].scriptWitness = parent2_witness2;
759 : :
760 [ + - ]: 1 : CTransactionRef ptx_parent2_v1 = MakeTransactionRef(mtx_parent2_v1);
761 [ + - ]: 1 : CTransactionRef ptx_parent2_v2 = MakeTransactionRef(mtx_parent2_v2);
762 : : // Put parent2_v1 in the package, submit parent2_v2 to the mempool.
763 [ + - ]: 1 : const MempoolAcceptResult parent2_v2_result = m_node.chainman->ProcessTransaction(ptx_parent2_v2);
764 [ + - + - : 2 : BOOST_CHECK(parent2_v2_result.m_result_type == MempoolAcceptResult::ResultType::VALID);
+ - ]
765 [ + - ]: 1 : package_mixed.push_back(ptx_parent2_v1);
766 : :
767 : : // parent3 will be a new transaction. Put a low feerate to make it invalid on its own.
768 [ + - + - ]: 2 : auto mtx_parent3 = CreateValidMempoolTransaction(/*input_transaction=*/m_coinbase_txns[3], /*input_vout=*/0,
769 : : /*input_height=*/0, /*input_signing_key=*/coinbaseKey,
770 : : /*output_destination=*/acs_spk,
771 [ + - ]: 2 : /*output_amount=*/CAmount(50 * COIN - low_fee_amt), /*submit=*/false);
772 [ + - ]: 1 : CTransactionRef ptx_parent3 = MakeTransactionRef(mtx_parent3);
773 [ + - ]: 1 : package_mixed.push_back(ptx_parent3);
774 [ + - + - : 2 : BOOST_CHECK(m_node.mempool->GetMinFee().GetFee(GetVirtualTransactionSize(*ptx_parent3)) > low_fee_amt);
+ - + - +
- + - ]
775 [ + - + - : 2 : BOOST_CHECK(m_node.mempool->m_opts.min_relay_feerate.GetFee(GetVirtualTransactionSize(*ptx_parent3)) <= low_fee_amt);
+ - + - ]
776 : :
777 : : // child spends parent1, parent2, and parent3
778 : 1 : CKey mixed_grandchild_key = GenerateRandomKey();
779 [ + - + - : 1 : CScript mixed_child_spk = GetScriptForDestination(WitnessV0KeyHash(mixed_grandchild_key.GetPubKey()));
+ - ]
780 : :
781 [ + - ]: 1 : CMutableTransaction mtx_mixed_child;
782 [ + - ]: 1 : mtx_mixed_child.vin.emplace_back(COutPoint(ptx_parent1->GetHash(), 0));
783 [ + - ]: 1 : mtx_mixed_child.vin.emplace_back(COutPoint(ptx_parent2_v1->GetHash(), 0));
784 [ + - ]: 1 : mtx_mixed_child.vin.emplace_back(COutPoint(ptx_parent3->GetHash(), 0));
785 [ + - ]: 1 : mtx_mixed_child.vin[0].scriptWitness = acs_witness;
786 [ + - ]: 1 : mtx_mixed_child.vin[1].scriptWitness = acs_witness;
787 [ + - ]: 1 : mtx_mixed_child.vin[2].scriptWitness = acs_witness;
788 [ + - ]: 1 : mtx_mixed_child.vout.emplace_back((48 + 49 + 50 - 1) * COIN, mixed_child_spk);
789 [ + - ]: 1 : CTransactionRef ptx_mixed_child = MakeTransactionRef(mtx_mixed_child);
790 [ + - ]: 1 : package_mixed.push_back(ptx_mixed_child);
791 : :
792 : : // Submit package:
793 : : // parent1 should be ignored
794 : : // parent2_v1 should be ignored (and v2 wtxid returned)
795 : : // parent3 should be accepted
796 : : // child should be accepted
797 : 1 : {
798 [ + - + - ]: 1 : const auto mixed_result = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool, package_mixed, false, /*client_maxfeerate=*/{});
799 [ + - - + ]: 1 : if (auto err_mixed{CheckPackageMempoolAcceptResult(package_mixed, mixed_result, /*expect_valid=*/true, m_node.mempool.get())}) {
800 [ # # # # : 0 : BOOST_ERROR(err_mixed.value());
# # ]
801 : : } else {
802 : 1 : auto it_parent1 = mixed_result.m_tx_results.find(ptx_parent1->GetWitnessHash());
803 : 1 : auto it_parent2 = mixed_result.m_tx_results.find(ptx_parent2_v1->GetWitnessHash());
804 : 1 : auto it_parent3 = mixed_result.m_tx_results.find(ptx_parent3->GetWitnessHash());
805 : 1 : auto it_child = mixed_result.m_tx_results.find(ptx_mixed_child->GetWitnessHash());
806 : :
807 [ + - + - : 2 : BOOST_CHECK(it_parent1->second.m_result_type == MempoolAcceptResult::ResultType::MEMPOOL_ENTRY);
+ - ]
808 [ + - + - : 2 : BOOST_CHECK(it_parent2->second.m_result_type == MempoolAcceptResult::ResultType::DIFFERENT_WITNESS);
+ - ]
809 [ + - + - : 2 : BOOST_CHECK(it_parent3->second.m_result_type == MempoolAcceptResult::ResultType::VALID);
+ - ]
810 [ + - + - : 2 : BOOST_CHECK(it_child->second.m_result_type == MempoolAcceptResult::ResultType::VALID);
+ - ]
811 [ + - + - : 1 : BOOST_CHECK_EQUAL(ptx_parent2_v2->GetWitnessHash(), it_parent2->second.m_other_wtxid.value());
+ - ]
812 : :
813 : : // package feerate should include parent3 and child. It should not include parent1 or parent2_v1.
814 [ + - + - : 1 : const CFeeRate expected_feerate(1 * COIN, GetVirtualTransactionSize(*ptx_parent3) + GetVirtualTransactionSize(*ptx_mixed_child));
+ - ]
815 [ + - + - : 2 : BOOST_CHECK(it_parent3->second.m_effective_feerate.value() == expected_feerate);
+ - + - ]
816 [ + - + - : 2 : BOOST_CHECK(it_child->second.m_effective_feerate.value() == expected_feerate);
+ - + - ]
817 [ + - ]: 1 : std::vector<Wtxid> expected_wtxids({ptx_parent3->GetWitnessHash(), ptx_mixed_child->GetWitnessHash()});
818 [ + - + - : 2 : BOOST_CHECK(it_parent3->second.m_wtxids_fee_calculations.value() == expected_wtxids);
+ - + - ]
819 [ + - + - : 2 : BOOST_CHECK(it_child->second.m_wtxids_fee_calculations.value() == expected_wtxids);
+ - ]
820 : 1 : }
821 [ + - ]: 1 : }
822 [ + - + - : 42 : }
+ - + - +
- + - + -
+ - - + +
- + - - +
+ - + - +
- + - + -
+ - + - +
- - + + -
+ - + - +
- + - + -
+ - + - +
- + - ]
823 : :
824 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(package_cpfp_tests)
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- ]
825 : : {
826 : 1 : mineBlocks(5);
827 : 1 : MockMempoolMinFee(CFeeRate(5000));
828 : 1 : LOCK(::cs_main);
829 [ + - ]: 1 : size_t expected_pool_size = m_node.mempool->size();
830 : 1 : CKey child_key = GenerateRandomKey();
831 [ + - + - : 1 : CScript parent_spk = GetScriptForDestination(WitnessV0KeyHash(child_key.GetPubKey()));
+ - ]
832 : 1 : CKey grandchild_key = GenerateRandomKey();
833 [ + - + - : 1 : CScript child_spk = GetScriptForDestination(WitnessV0KeyHash(grandchild_key.GetPubKey()));
+ - ]
834 : :
835 : : // low-fee parent and high-fee child package
836 : 1 : const CAmount coinbase_value{50 * COIN};
837 : 1 : const CAmount parent_value{coinbase_value - low_fee_amt};
838 : 1 : const CAmount child_value{parent_value - COIN};
839 : :
840 : 1 : Package package_cpfp;
841 [ + - ]: 2 : auto mtx_parent = CreateValidMempoolTransaction(/*input_transaction=*/m_coinbase_txns[0], /*input_vout=*/0,
842 [ + - ]: 1 : /*input_height=*/0, /*input_signing_key=*/coinbaseKey,
843 : : /*output_destination=*/parent_spk,
844 [ + - ]: 2 : /*output_amount=*/parent_value, /*submit=*/false);
845 [ + - ]: 1 : CTransactionRef tx_parent = MakeTransactionRef(mtx_parent);
846 [ + - ]: 1 : package_cpfp.push_back(tx_parent);
847 : :
848 [ + - ]: 2 : auto mtx_child = CreateValidMempoolTransaction(/*input_transaction=*/tx_parent, /*input_vout=*/0,
849 : : /*input_height=*/101, /*input_signing_key=*/child_key,
850 : : /*output_destination=*/child_spk,
851 [ + - ]: 2 : /*output_amount=*/child_value, /*submit=*/false);
852 [ + - ]: 1 : CTransactionRef tx_child = MakeTransactionRef(mtx_child);
853 [ + - ]: 1 : package_cpfp.push_back(tx_child);
854 : :
855 : : // Package feerate is calculated using modified fees, and prioritisetransaction accepts negative
856 : : // fee deltas. This should be taken into account. De-prioritise the parent transaction
857 : : // to bring the package feerate to 0.
858 [ + - ]: 1 : m_node.mempool->PrioritiseTransaction(tx_parent->GetHash(), child_value - coinbase_value);
859 : 1 : {
860 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
861 [ + - ]: 1 : const auto submit_cpfp_deprio = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
862 [ + - + - ]: 1 : package_cpfp, /*test_accept=*/ false, /*client_maxfeerate=*/{});
863 [ + - - + ]: 1 : if (auto err_cpfp_deprio{CheckPackageMempoolAcceptResult(package_cpfp, submit_cpfp_deprio, /*expect_valid=*/false, m_node.mempool.get())}) {
864 [ # # # # : 0 : BOOST_ERROR(err_cpfp_deprio.value());
# # ]
865 : : } else {
866 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(submit_cpfp_deprio.m_state.GetResult(), PackageValidationResult::PCKG_TX);
867 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(submit_cpfp_deprio.m_tx_results.find(tx_parent->GetWitnessHash())->second.m_state.GetResult(),
868 : : TxValidationResult::TX_MEMPOOL_POLICY);
869 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(submit_cpfp_deprio.m_tx_results.find(tx_child->GetWitnessHash())->second.m_state.GetResult(),
870 : : TxValidationResult::TX_MISSING_INPUTS);
871 [ + - + - : 2 : BOOST_CHECK(submit_cpfp_deprio.m_tx_results.find(tx_parent->GetWitnessHash())->second.m_state.GetRejectReason() == "min relay fee not met");
+ - + - ]
872 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
873 : 0 : }
874 : 1 : }
875 : :
876 : : // Clear the prioritisation of the parent transaction.
877 [ + - ]: 3 : WITH_LOCK(m_node.mempool->cs, m_node.mempool->ClearPrioritisation(tx_parent->GetHash()));
878 : :
879 : : // Package CPFP: Even though the parent's feerate is below the mempool minimum feerate, the
880 : : // child pays enough for the package feerate to meet the threshold.
881 : 1 : {
882 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
883 [ + - ]: 1 : const auto submit_cpfp = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
884 [ + - + - ]: 1 : package_cpfp, /*test_accept=*/ false, /*client_maxfeerate=*/{});
885 [ + - - + ]: 1 : if (auto err_cpfp{CheckPackageMempoolAcceptResult(package_cpfp, submit_cpfp, /*expect_valid=*/true, m_node.mempool.get())}) {
886 [ # # # # : 0 : BOOST_ERROR(err_cpfp.value());
# # ]
887 : : } else {
888 : 1 : auto it_parent = submit_cpfp.m_tx_results.find(tx_parent->GetWitnessHash());
889 : 1 : auto it_child = submit_cpfp.m_tx_results.find(tx_child->GetWitnessHash());
890 [ + - + - : 2 : BOOST_CHECK(it_parent->second.m_result_type == MempoolAcceptResult::ResultType::VALID);
+ - ]
891 [ + - + - : 2 : BOOST_CHECK(it_parent->second.m_base_fees.value() == coinbase_value - parent_value);
+ - + - ]
892 [ + - + - : 2 : BOOST_CHECK(it_child->second.m_result_type == MempoolAcceptResult::ResultType::VALID);
+ - ]
893 [ + - + - : 2 : BOOST_CHECK(it_child->second.m_base_fees.value() == COIN);
+ - + - ]
894 : :
895 [ + - ]: 1 : const CFeeRate expected_feerate(coinbase_value - child_value,
896 [ + - + - : 1 : GetVirtualTransactionSize(*tx_parent) + GetVirtualTransactionSize(*tx_child));
+ - ]
897 [ + - + - : 2 : BOOST_CHECK(it_parent->second.m_effective_feerate.value() == expected_feerate);
+ - + - ]
898 [ + - + - : 2 : BOOST_CHECK(it_child->second.m_effective_feerate.value() == expected_feerate);
+ - + - ]
899 [ + - ]: 1 : std::vector<Wtxid> expected_wtxids({tx_parent->GetWitnessHash(), tx_child->GetWitnessHash()});
900 [ + - + - : 2 : BOOST_CHECK(it_parent->second.m_wtxids_fee_calculations.value() == expected_wtxids);
+ - + - ]
901 [ + - + - : 2 : BOOST_CHECK(it_child->second.m_wtxids_fee_calculations.value() == expected_wtxids);
+ - + - ]
902 [ + - + - ]: 2 : BOOST_CHECK(expected_feerate.GetFeePerK() > 1000);
903 : 1 : }
904 : 1 : expected_pool_size += 2;
905 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
906 : 1 : }
907 : :
908 : : // Just because we allow low-fee parents doesn't mean we allow low-feerate packages.
909 : : // The mempool minimum feerate is 5sat/vB, but this package just pays 800 satoshis total.
910 : : // The child fees would be able to pay for itself, but isn't enough for the entire package.
911 : 1 : Package package_still_too_low;
912 : 1 : const CAmount parent_fee{200};
913 : 1 : const CAmount child_fee{600};
914 [ + - + - ]: 2 : auto mtx_parent_cheap = CreateValidMempoolTransaction(/*input_transaction=*/m_coinbase_txns[1], /*input_vout=*/0,
915 : : /*input_height=*/0, /*input_signing_key=*/coinbaseKey,
916 : : /*output_destination=*/parent_spk,
917 [ + - ]: 2 : /*output_amount=*/coinbase_value - parent_fee, /*submit=*/false);
918 [ + - ]: 1 : CTransactionRef tx_parent_cheap = MakeTransactionRef(mtx_parent_cheap);
919 [ + - ]: 1 : package_still_too_low.push_back(tx_parent_cheap);
920 [ + - + - : 2 : BOOST_CHECK(m_node.mempool->GetMinFee().GetFee(GetVirtualTransactionSize(*tx_parent_cheap)) > parent_fee);
+ - + - +
- + - ]
921 [ + - + - : 2 : BOOST_CHECK(m_node.mempool->m_opts.min_relay_feerate.GetFee(GetVirtualTransactionSize(*tx_parent_cheap)) <= parent_fee);
+ - + - ]
922 : :
923 [ + - ]: 2 : auto mtx_child_cheap = CreateValidMempoolTransaction(/*input_transaction=*/tx_parent_cheap, /*input_vout=*/0,
924 : : /*input_height=*/101, /*input_signing_key=*/child_key,
925 : : /*output_destination=*/child_spk,
926 [ + - ]: 2 : /*output_amount=*/coinbase_value - parent_fee - child_fee, /*submit=*/false);
927 [ + - ]: 1 : CTransactionRef tx_child_cheap = MakeTransactionRef(mtx_child_cheap);
928 [ + - ]: 1 : package_still_too_low.push_back(tx_child_cheap);
929 [ + - + - : 2 : BOOST_CHECK(m_node.mempool->GetMinFee().GetFee(GetVirtualTransactionSize(*tx_child_cheap)) <= child_fee);
+ - + - +
- + - ]
930 [ + - + - : 2 : BOOST_CHECK(m_node.mempool->GetMinFee().GetFee(GetVirtualTransactionSize(*tx_parent_cheap) + GetVirtualTransactionSize(*tx_child_cheap)) > parent_fee + child_fee);
+ - + - +
- + - +
- ]
931 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
932 : :
933 : : // Cheap package should fail for being too low fee.
934 : 1 : {
935 [ + - ]: 1 : const auto submit_package_too_low = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
936 [ + - + - ]: 1 : package_still_too_low, /*test_accept=*/false, /*client_maxfeerate=*/{});
937 [ + - - + ]: 1 : if (auto err_package_too_low{CheckPackageMempoolAcceptResult(package_still_too_low, submit_package_too_low, /*expect_valid=*/false, m_node.mempool.get())}) {
938 [ # # # # : 0 : BOOST_ERROR(err_package_too_low.value());
# # ]
939 : : } else {
940 : : // Individual feerate of parent is too low.
941 [ + - + - : 1 : BOOST_CHECK_EQUAL(submit_package_too_low.m_tx_results.at(tx_parent_cheap->GetWitnessHash()).m_state.GetResult(),
+ - ]
942 : : TxValidationResult::TX_RECONSIDERABLE);
943 [ + - + - : 2 : BOOST_CHECK(submit_package_too_low.m_tx_results.at(tx_parent_cheap->GetWitnessHash()).m_effective_feerate.value() ==
+ - + - +
- + - +
- ]
944 : : CFeeRate(parent_fee, GetVirtualTransactionSize(*tx_parent_cheap)));
945 : : // Package feerate of parent + child is too low.
946 [ + - + - : 1 : BOOST_CHECK_EQUAL(submit_package_too_low.m_tx_results.at(tx_child_cheap->GetWitnessHash()).m_state.GetResult(),
+ - ]
947 : : TxValidationResult::TX_RECONSIDERABLE);
948 [ + - + - : 2 : BOOST_CHECK(submit_package_too_low.m_tx_results.at(tx_child_cheap->GetWitnessHash()).m_effective_feerate.value() ==
+ - + - +
- + - +
- ]
949 : : CFeeRate(parent_fee + child_fee, GetVirtualTransactionSize(*tx_parent_cheap) + GetVirtualTransactionSize(*tx_child_cheap)));
950 : 0 : }
951 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(submit_package_too_low.m_state.GetResult(), PackageValidationResult::PCKG_TX);
952 [ + - + - : 1 : BOOST_CHECK_EQUAL(submit_package_too_low.m_state.GetRejectReason(), "transaction failed");
+ - ]
953 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
954 : 1 : }
955 : :
956 : : // Package feerate includes the modified fees of the transactions.
957 : : // This means a child with its fee delta from prioritisetransaction can pay for a parent.
958 [ + - ]: 1 : m_node.mempool->PrioritiseTransaction(tx_child_cheap->GetHash(), 1 * COIN);
959 : : // Now that the child's fees have "increased" by 1 BTC, the cheap package should succeed.
960 : 1 : {
961 [ + - ]: 1 : const auto submit_prioritised_package = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
962 [ + - + - ]: 1 : package_still_too_low, /*test_accept=*/false, /*client_maxfeerate=*/{});
963 [ + - - + ]: 1 : if (auto err_prioritised{CheckPackageMempoolAcceptResult(package_still_too_low, submit_prioritised_package, /*expect_valid=*/true, m_node.mempool.get())}) {
964 [ # # # # : 0 : BOOST_ERROR(err_prioritised.value());
# # ]
965 : : } else {
966 [ + - ]: 1 : const CFeeRate expected_feerate(1 * COIN + parent_fee + child_fee,
967 [ + - + - : 1 : GetVirtualTransactionSize(*tx_parent_cheap) + GetVirtualTransactionSize(*tx_child_cheap));
+ - ]
968 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(submit_prioritised_package.m_tx_results.size(), package_still_too_low.size());
969 : 1 : auto it_parent = submit_prioritised_package.m_tx_results.find(tx_parent_cheap->GetWitnessHash());
970 : 1 : auto it_child = submit_prioritised_package.m_tx_results.find(tx_child_cheap->GetWitnessHash());
971 [ + - + - : 2 : BOOST_CHECK(it_parent->second.m_result_type == MempoolAcceptResult::ResultType::VALID);
+ - ]
972 [ + - + - : 2 : BOOST_CHECK(it_parent->second.m_base_fees.value() == parent_fee);
+ - + - ]
973 [ + - + - : 2 : BOOST_CHECK(it_parent->second.m_effective_feerate.value() == expected_feerate);
+ - + - ]
974 [ + - + - : 2 : BOOST_CHECK(it_child->second.m_result_type == MempoolAcceptResult::ResultType::VALID);
+ - ]
975 [ + - + - : 2 : BOOST_CHECK(it_child->second.m_base_fees.value() == child_fee);
+ - + - ]
976 [ + - + - : 2 : BOOST_CHECK(it_child->second.m_effective_feerate.value() == expected_feerate);
+ - + - ]
977 [ + - ]: 1 : std::vector<Wtxid> expected_wtxids({tx_parent_cheap->GetWitnessHash(), tx_child_cheap->GetWitnessHash()});
978 [ + - + - : 2 : BOOST_CHECK(it_parent->second.m_wtxids_fee_calculations.value() == expected_wtxids);
+ - + - ]
979 [ + - + - : 2 : BOOST_CHECK(it_child->second.m_wtxids_fee_calculations.value() == expected_wtxids);
+ - ]
980 : 1 : }
981 : 1 : expected_pool_size += 2;
982 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
983 : 1 : }
984 : :
985 : : // Package feerate is calculated without topology in mind; it's just aggregating fees and sizes.
986 : : // However, this should not allow parents to pay for children. Each transaction should be
987 : : // validated individually first, eliminating sufficient-feerate parents before they are unfairly
988 : : // included in the package feerate. It's also important that the low-fee child doesn't prevent
989 : : // the parent from being accepted.
990 : 1 : Package package_rich_parent;
991 : 1 : const CAmount high_parent_fee{1 * COIN};
992 [ + - + - ]: 2 : auto mtx_parent_rich = CreateValidMempoolTransaction(/*input_transaction=*/m_coinbase_txns[2], /*input_vout=*/0,
993 : : /*input_height=*/0, /*input_signing_key=*/coinbaseKey,
994 : : /*output_destination=*/parent_spk,
995 [ + - ]: 2 : /*output_amount=*/coinbase_value - high_parent_fee, /*submit=*/false);
996 [ + - ]: 1 : CTransactionRef tx_parent_rich = MakeTransactionRef(mtx_parent_rich);
997 [ + - ]: 1 : package_rich_parent.push_back(tx_parent_rich);
998 : :
999 [ + - ]: 2 : auto mtx_child_poor = CreateValidMempoolTransaction(/*input_transaction=*/tx_parent_rich, /*input_vout=*/0,
1000 : : /*input_height=*/101, /*input_signing_key=*/child_key,
1001 : : /*output_destination=*/child_spk,
1002 [ + - ]: 2 : /*output_amount=*/coinbase_value - high_parent_fee, /*submit=*/false);
1003 [ + - ]: 1 : CTransactionRef tx_child_poor = MakeTransactionRef(mtx_child_poor);
1004 [ + - ]: 1 : package_rich_parent.push_back(tx_child_poor);
1005 : :
1006 : : // Parent pays 1 BTC and child pays none. The parent should be accepted without the child.
1007 : 1 : {
1008 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
1009 [ + - ]: 1 : const auto submit_rich_parent = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool,
1010 [ + - + - ]: 1 : package_rich_parent, /*test_accept=*/false, /*client_maxfeerate=*/{});
1011 [ + - - + ]: 1 : if (auto err_rich_parent{CheckPackageMempoolAcceptResult(package_rich_parent, submit_rich_parent, /*expect_valid=*/false, m_node.mempool.get())}) {
1012 [ # # # # : 0 : BOOST_ERROR(err_rich_parent.value());
# # ]
1013 : : } else {
1014 : : // The child would have been validated on its own and failed.
1015 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(submit_rich_parent.m_state.GetResult(), PackageValidationResult::PCKG_TX);
1016 [ + - + - : 1 : BOOST_CHECK_EQUAL(submit_rich_parent.m_state.GetRejectReason(), "transaction failed");
+ - ]
1017 : :
1018 : 1 : auto it_parent = submit_rich_parent.m_tx_results.find(tx_parent_rich->GetWitnessHash());
1019 : 1 : auto it_child = submit_rich_parent.m_tx_results.find(tx_child_poor->GetWitnessHash());
1020 [ + - + - : 2 : BOOST_CHECK(it_parent->second.m_result_type == MempoolAcceptResult::ResultType::VALID);
+ - ]
1021 [ + - + - : 2 : BOOST_CHECK(it_child->second.m_result_type == MempoolAcceptResult::ResultType::INVALID);
+ - ]
1022 [ + - + - : 2 : BOOST_CHECK(it_parent->second.m_state.GetRejectReason() == "");
+ - + - ]
1023 [ + - + - : 2 : BOOST_CHECK_MESSAGE(it_parent->second.m_base_fees.value() == high_parent_fee,
+ - + - +
- ]
1024 : : strprintf("rich parent: expected fee %s, got %s", high_parent_fee, it_parent->second.m_base_fees.value()));
1025 [ + - + - : 3 : BOOST_CHECK(it_parent->second.m_effective_feerate == CFeeRate(high_parent_fee, GetVirtualTransactionSize(*tx_parent_rich)));
+ - + - +
- + - ]
1026 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_child->second.m_result_type, MempoolAcceptResult::ResultType::INVALID);
1027 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_child->second.m_state.GetResult(), TxValidationResult::TX_MEMPOOL_POLICY);
1028 [ + - + - : 2 : BOOST_CHECK(it_child->second.m_state.GetRejectReason() == "min relay fee not met");
+ - ]
1029 : 0 : }
1030 : 1 : expected_pool_size += 1;
1031 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
1032 [ + - ]: 1 : }
1033 [ + - + - : 13 : }
+ - + - +
- + - ]
1034 : :
1035 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(package_rbf_tests)
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- + - + -
+ - + - +
- ]
1036 : : {
1037 : 1 : mineBlocks(5);
1038 : 1 : LOCK(::cs_main);
1039 [ + - ]: 1 : size_t expected_pool_size = m_node.mempool->size();
1040 : 1 : CKey child_key{GenerateRandomKey()};
1041 [ + - + - : 1 : CScript parent_spk = GetScriptForDestination(WitnessV0KeyHash(child_key.GetPubKey()));
+ - ]
1042 : 1 : CKey grandchild_key{GenerateRandomKey()};
1043 [ + - + - : 1 : CScript child_spk = GetScriptForDestination(WitnessV0KeyHash(grandchild_key.GetPubKey()));
+ - ]
1044 : :
1045 : 1 : const CAmount coinbase_value{50 * COIN};
1046 : : // Test that de-duplication works. This is not actually package rbf.
1047 : 1 : {
1048 : : // 1 parent paying 200sat, 1 child paying 300sat
1049 : 1 : Package package1;
1050 : : // 1 parent paying 200sat, 1 child paying 500sat
1051 : 1 : Package package2;
1052 : : // Package1 and package2 have the same parent. The children conflict.
1053 [ + - ]: 2 : auto mtx_parent = CreateValidMempoolTransaction(/*input_transaction=*/m_coinbase_txns[0], /*input_vout=*/0,
1054 [ + - ]: 1 : /*input_height=*/0, /*input_signing_key=*/coinbaseKey,
1055 : : /*output_destination=*/parent_spk,
1056 [ + - ]: 2 : /*output_amount=*/coinbase_value - low_fee_amt, /*submit=*/false);
1057 [ + - ]: 1 : CTransactionRef tx_parent = MakeTransactionRef(mtx_parent);
1058 [ + - ]: 1 : package1.push_back(tx_parent);
1059 [ + - ]: 1 : package2.push_back(tx_parent);
1060 : :
1061 [ + - + - : 5 : CTransactionRef tx_child_1 = MakeTransactionRef(CreateValidMempoolTransaction(tx_parent, 0, 101, child_key, child_spk, coinbase_value - low_fee_amt - 300, false));
+ - ]
1062 [ + - ]: 1 : package1.push_back(tx_child_1);
1063 [ + - + - : 5 : CTransactionRef tx_child_2 = MakeTransactionRef(CreateValidMempoolTransaction(tx_parent, 0, 101, child_key, child_spk, coinbase_value - low_fee_amt - 500, false));
+ - ]
1064 [ + - ]: 1 : package2.push_back(tx_child_2);
1065 : :
1066 [ + - ]: 1 : LOCK(m_node.mempool->cs);
1067 [ + - + - ]: 1 : const auto submit1 = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool, package1, /*test_accept=*/false, std::nullopt);
1068 [ + - - + ]: 1 : if (auto err_1{CheckPackageMempoolAcceptResult(package1, submit1, /*expect_valid=*/true, m_node.mempool.get())}) {
1069 [ # # # # : 0 : BOOST_ERROR(err_1.value());
# # ]
1070 : 0 : }
1071 : :
1072 : : // Check precise ResultTypes and mempool size. We know it_parent_1 and it_child_1 exist from above call
1073 : 1 : auto it_parent_1 = submit1.m_tx_results.find(tx_parent->GetWitnessHash());
1074 : 1 : auto it_child_1 = submit1.m_tx_results.find(tx_child_1->GetWitnessHash());
1075 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_parent_1->second.m_result_type, MempoolAcceptResult::ResultType::VALID);
1076 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_child_1->second.m_result_type, MempoolAcceptResult::ResultType::VALID);
1077 : 1 : expected_pool_size += 2;
1078 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
1079 : :
1080 [ + - + - ]: 1 : const auto submit2 = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool, package2, /*test_accept=*/false, std::nullopt);
1081 [ + - - + ]: 1 : if (auto err_2{CheckPackageMempoolAcceptResult(package2, submit2, /*expect_valid=*/true, m_node.mempool.get())}) {
1082 [ # # # # : 0 : BOOST_ERROR(err_2.value());
# # ]
1083 : 0 : }
1084 : :
1085 : : // Check precise ResultTypes and mempool size. We know it_parent_2 and it_child_2 exist from above call
1086 : 1 : auto it_parent_2 = submit2.m_tx_results.find(tx_parent->GetWitnessHash());
1087 : 1 : auto it_child_2 = submit2.m_tx_results.find(tx_child_2->GetWitnessHash());
1088 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_parent_2->second.m_result_type, MempoolAcceptResult::ResultType::MEMPOOL_ENTRY);
1089 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_child_2->second.m_result_type, MempoolAcceptResult::ResultType::VALID);
1090 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
1091 : :
1092 : : // child1 has been replaced
1093 [ + - + - : 2 : BOOST_CHECK(!m_node.mempool->exists(GenTxid::Txid(tx_child_1->GetHash())));
+ - ]
1094 [ + - + - : 6 : }
+ - + - ]
1095 : :
1096 : : // Test package rbf.
1097 : 1 : {
1098 [ + - + - : 4 : CTransactionRef tx_parent_1 = MakeTransactionRef(CreateValidMempoolTransaction(
+ - ]
1099 [ + - ]: 1 : m_coinbase_txns[1], /*input_vout=*/0, /*input_height=*/0,
1100 : 1 : coinbaseKey, parent_spk, coinbase_value - 200, /*submit=*/false));
1101 [ + - + - : 4 : CTransactionRef tx_child_1 = MakeTransactionRef(CreateValidMempoolTransaction(
+ - ]
1102 : : tx_parent_1, /*input_vout=*/0, /*input_height=*/101,
1103 : 1 : child_key, child_spk, coinbase_value - 400, /*submit=*/false));
1104 : :
1105 [ + - + - : 4 : CTransactionRef tx_parent_2 = MakeTransactionRef(CreateValidMempoolTransaction(
+ - ]
1106 [ + - ]: 1 : m_coinbase_txns[1], /*input_vout=*/0, /*input_height=*/0,
1107 : 1 : coinbaseKey, parent_spk, coinbase_value - 800, /*submit=*/false));
1108 [ + - + - : 4 : CTransactionRef tx_child_2 = MakeTransactionRef(CreateValidMempoolTransaction(
+ - ]
1109 : : tx_parent_2, /*input_vout=*/0, /*input_height=*/101,
1110 : 1 : child_key, child_spk, coinbase_value - 800 - 200, /*submit=*/false));
1111 : :
1112 [ + - + - : 4 : CTransactionRef tx_parent_3 = MakeTransactionRef(CreateValidMempoolTransaction(
+ - ]
1113 [ + - ]: 1 : m_coinbase_txns[1], /*input_vout=*/0, /*input_height=*/0,
1114 : 1 : coinbaseKey, parent_spk, coinbase_value - 199, /*submit=*/false));
1115 [ + - + - : 4 : CTransactionRef tx_child_3 = MakeTransactionRef(CreateValidMempoolTransaction(
+ - ]
1116 : : tx_parent_3, /*input_vout=*/0, /*input_height=*/101,
1117 : 1 : child_key, child_spk, coinbase_value - 199 - 1300, /*submit=*/false));
1118 : :
1119 : : // In all packages, the parents conflict with each other
1120 [ + - + - : 2 : BOOST_CHECK(tx_parent_1->GetHash() != tx_parent_2->GetHash() && tx_parent_2->GetHash() != tx_parent_3->GetHash());
- + + - +
- ]
1121 : :
1122 : : // 1 parent paying 200sat, 1 child paying 200sat.
1123 [ + + + - : 3 : Package package1{tx_parent_1, tx_child_1};
- - - - ]
1124 : : // 1 parent paying 800sat, 1 child paying 200sat.
1125 [ + + + - : 3 : Package package2{tx_parent_2, tx_child_2};
- - - - ]
1126 : : // 1 parent paying 199sat, 1 child paying 1300sat.
1127 [ + + + - : 3 : Package package3{tx_parent_3, tx_child_3};
- - - - ]
1128 : :
1129 [ + - + - ]: 1 : const auto submit1 = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool, package1, false, std::nullopt);
1130 [ + - - + ]: 1 : if (auto err_1{CheckPackageMempoolAcceptResult(package1, submit1, /*expect_valid=*/true, m_node.mempool.get())}) {
1131 [ # # # # : 0 : BOOST_ERROR(err_1.value());
# # ]
1132 : 0 : }
1133 : 1 : auto it_parent_1 = submit1.m_tx_results.find(tx_parent_1->GetWitnessHash());
1134 : 1 : auto it_child_1 = submit1.m_tx_results.find(tx_child_1->GetWitnessHash());
1135 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_parent_1->second.m_result_type, MempoolAcceptResult::ResultType::VALID);
1136 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_child_1->second.m_result_type, MempoolAcceptResult::ResultType::VALID);
1137 : 1 : expected_pool_size += 2;
1138 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
1139 : :
1140 : : // This replacement is actually not package rbf; the parent carries enough fees
1141 : : // to replace the entire package on its own.
1142 [ + - + - ]: 1 : const auto submit2 = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool, package2, false, std::nullopt);
1143 [ + - - + ]: 1 : if (auto err_2{CheckPackageMempoolAcceptResult(package2, submit2, /*expect_valid=*/true, m_node.mempool.get())}) {
1144 [ # # # # : 0 : BOOST_ERROR(err_2.value());
# # ]
1145 : 0 : }
1146 : 1 : auto it_parent_2 = submit2.m_tx_results.find(tx_parent_2->GetWitnessHash());
1147 : 1 : auto it_child_2 = submit2.m_tx_results.find(tx_child_2->GetWitnessHash());
1148 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_parent_2->second.m_result_type, MempoolAcceptResult::ResultType::VALID);
1149 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_child_2->second.m_result_type, MempoolAcceptResult::ResultType::VALID);
1150 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
1151 : :
1152 : : // Package RBF, in which the replacement transaction's child sponsors the fees to meet RBF feerate rules
1153 [ + - + - ]: 1 : const auto submit3 = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool, package3, false, std::nullopt);
1154 [ + - - + ]: 1 : if (auto err_3{CheckPackageMempoolAcceptResult(package3, submit3, /*expect_valid=*/true, m_node.mempool.get())}) {
1155 [ # # # # : 0 : BOOST_ERROR(err_3.value());
# # ]
1156 : 0 : }
1157 : 1 : auto it_parent_3 = submit3.m_tx_results.find(tx_parent_3->GetWitnessHash());
1158 : 1 : auto it_child_3 = submit3.m_tx_results.find(tx_child_3->GetWitnessHash());
1159 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_parent_3->second.m_result_type, MempoolAcceptResult::ResultType::VALID);
1160 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_child_3->second.m_result_type, MempoolAcceptResult::ResultType::VALID);
1161 : :
1162 : : // package3 was considered as a package to replace both package2 transactions
1163 [ + - + - : 2 : BOOST_CHECK(it_parent_3->second.m_replaced_transactions.size() == 2);
+ - ]
1164 [ + - + - : 2 : BOOST_CHECK(it_child_3->second.m_replaced_transactions.empty());
+ - ]
1165 : :
1166 [ + - ]: 1 : std::vector<Wtxid> expected_package3_wtxids({tx_parent_3->GetWitnessHash(), tx_child_3->GetWitnessHash()});
1167 [ + - + - ]: 1 : const auto package3_total_vsize{GetVirtualTransactionSize(*tx_parent_3) + GetVirtualTransactionSize(*tx_child_3)};
1168 [ + - + - : 2 : BOOST_CHECK(it_parent_3->second.m_wtxids_fee_calculations.value() == expected_package3_wtxids);
+ - + - ]
1169 [ + - + - : 2 : BOOST_CHECK(it_child_3->second.m_wtxids_fee_calculations.value() == expected_package3_wtxids);
+ - + - ]
1170 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_parent_3->second.m_effective_feerate.value().GetFee(package3_total_vsize), 199 + 1300);
+ - + - ]
1171 [ + - + - : 1 : BOOST_CHECK_EQUAL(it_child_3->second.m_effective_feerate.value().GetFee(package3_total_vsize), 199 + 1300);
+ - + - ]
1172 : :
1173 [ + - + - : 1 : BOOST_CHECK_EQUAL(m_node.mempool->size(), expected_pool_size);
+ - ]
1174 : :
1175 : : // Finally, check that we can prioritise tx_child_1 to get package1 into the mempool.
1176 : : // It should not be possible to resubmit package1 and get it in without prioritisation.
1177 [ + - + - ]: 1 : const auto submit4 = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool, package1, false, std::nullopt);
1178 [ + - - + ]: 1 : if (auto err_4{CheckPackageMempoolAcceptResult(package1, submit4, /*expect_valid=*/false, m_node.mempool.get())}) {
1179 [ # # # # : 0 : BOOST_ERROR(err_4.value());
# # ]
1180 : 0 : }
1181 [ + - ]: 1 : m_node.mempool->PrioritiseTransaction(tx_child_1->GetHash(), 1363);
1182 [ + - + - ]: 1 : const auto submit5 = ProcessNewPackage(m_node.chainman->ActiveChainstate(), *m_node.mempool, package1, false, std::nullopt);
1183 [ + - - + ]: 1 : if (auto err_5{CheckPackageMempoolAcceptResult(package1, submit5, /*expect_valid=*/true, m_node.mempool.get())}) {
1184 [ # # # # : 0 : BOOST_ERROR(err_5.value());
# # ]
1185 : 0 : }
1186 : 1 : it_parent_1 = submit5.m_tx_results.find(tx_parent_1->GetWitnessHash());
1187 : 1 : it_child_1 = submit5.m_tx_results.find(tx_child_1->GetWitnessHash());
1188 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_parent_1->second.m_result_type, MempoolAcceptResult::ResultType::VALID);
1189 [ + - + - ]: 1 : BOOST_CHECK_EQUAL(it_child_1->second.m_result_type, MempoolAcceptResult::ResultType::VALID);
1190 [ + - ]: 1 : LOCK(m_node.mempool->cs);
1191 [ + - + - : 2 : BOOST_CHECK(m_node.mempool->GetIter(tx_parent_1->GetHash()).has_value());
+ - + - ]
1192 [ + - + - : 2 : BOOST_CHECK(m_node.mempool->GetIter(tx_child_1->GetHash()).has_value());
+ - + - ]
1193 [ + - + - : 7 : }
+ - + - +
- + - ]
1194 [ + - + - : 11 : }
- + + - +
- - + + -
+ - - + +
- ]
1195 : : BOOST_AUTO_TEST_SUITE_END()
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