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author | MarcoFalke <falke.marco@gmail.com> | 2021-07-27 11:20:29 +0200 |
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committer | MarcoFalke <falke.marco@gmail.com> | 2021-07-27 11:21:46 +0200 |
commit | 7075a52b67dc09c47142d987dcd089cc74bdcce6 (patch) | |
tree | ff197336be6a06ac2e10e65dd5fcc6a27d603e48 /src/wallet | |
parent | 1488f55fa57a1400a57be837b574183f019c7855 (diff) | |
parent | fe6dc76b7c9c5405f37464a3b19fcf82aaf22861 (diff) | |
download | bitcoin-7075a52b67dc09c47142d987dcd089cc74bdcce6.tar.xz |
Merge bitcoin/bitcoin#22155: wallet test: Add test for subtract fee from recipient behavior
fe6dc76b7c9c5405f37464a3b19fcf82aaf22861 wallet test: Add test for subtract fee from recipient behavior (Russell Yanofsky)
2565478c813fb7278153b113de4b9338fc186872 wallet test refactor: add CreateSyncedWallet function (Russell Yanofsky)
Pull request description:
This adds test coverage for wallet subtract from recipient behavior without changing it. Behavior seems to have changed recently in a minor way in #17331 without being noticed.
ACKs for top commit:
achow101:
ACK fe6dc76b7c9c5405f37464a3b19fcf82aaf22861
glozow:
ACK fe6dc76b7c9c5405f37464a3b19fcf82aaf22861
promag:
Code review ACK fe6dc76b7c9c5405f37464a3b19fcf82aaf22861.
Tree-SHA512: e00c5dfe467e4ccef5edb0dd4fff6c53f35a37828a4327bea2e166751e5ef971d519ffca7b8f735b12912bb4a547980626356bc1855981005aed1a6c2a57be0b
Diffstat (limited to 'src/wallet')
-rw-r--r-- | src/wallet/test/spend_tests.cpp | 61 | ||||
-rw-r--r-- | src/wallet/test/util.cpp | 38 | ||||
-rw-r--r-- | src/wallet/test/util.h | 19 | ||||
-rw-r--r-- | src/wallet/test/wallet_tests.cpp | 16 |
4 files changed, 120 insertions, 14 deletions
diff --git a/src/wallet/test/spend_tests.cpp b/src/wallet/test/spend_tests.cpp new file mode 100644 index 0000000000..66e7de4273 --- /dev/null +++ b/src/wallet/test/spend_tests.cpp @@ -0,0 +1,61 @@ +// Copyright (c) 2021 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 <policy/fees.h> +#include <validation.h> +#include <wallet/coincontrol.h> +#include <wallet/test/util.h> +#include <wallet/test/wallet_test_fixture.h> + +#include <boost/test/unit_test.hpp> + +BOOST_FIXTURE_TEST_SUITE(spend_tests, WalletTestingSetup) + +BOOST_FIXTURE_TEST_CASE(SubtractFee, TestChain100Setup) +{ + CreateAndProcessBlock({}, GetScriptForRawPubKey(coinbaseKey.GetPubKey())); + auto wallet = CreateSyncedWallet(*m_node.chain, m_node.chainman->ActiveChain(), coinbaseKey); + + // Check that a subtract-from-recipient transaction slightly less than the + // coinbase input amount does not create a change output (because it would + // be uneconomical to add and spend the output), and make sure it pays the + // leftover input amount which would have been change to the recipient + // instead of the miner. + auto check_tx = [&wallet](CAmount leftover_input_amount) { + CRecipient recipient{GetScriptForRawPubKey({}), 50 * COIN - leftover_input_amount, true /* subtract fee */}; + CTransactionRef tx; + CAmount fee; + int change_pos = -1; + bilingual_str error; + CCoinControl coin_control; + coin_control.m_feerate.emplace(10000); + coin_control.fOverrideFeeRate = true; + FeeCalculation fee_calc; + BOOST_CHECK(wallet->CreateTransaction({recipient}, tx, fee, change_pos, error, coin_control, fee_calc)); + BOOST_CHECK_EQUAL(tx->vout.size(), 1); + BOOST_CHECK_EQUAL(tx->vout[0].nValue, recipient.nAmount + leftover_input_amount - fee); + BOOST_CHECK_GT(fee, 0); + return fee; + }; + + // Send full input amount to recipient, check that only nonzero fee is + // subtracted (to_reduce == fee). + const CAmount fee{check_tx(0)}; + + // Send slightly less than full input amount to recipient, check leftover + // input amount is paid to recipient not the miner (to_reduce == fee - 123) + BOOST_CHECK_EQUAL(fee, check_tx(123)); + + // Send full input minus fee amount to recipient, check leftover input + // amount is paid to recipient not the miner (to_reduce == 0) + BOOST_CHECK_EQUAL(fee, check_tx(fee)); + + // Send full input minus more than the fee amount to recipient, check + // leftover input amount is paid to recipient not the miner (to_reduce == + // -123). This overpays the recipient instead of overpaying the miner more + // than double the neccesary fee. + BOOST_CHECK_EQUAL(fee, check_tx(fee + 123)); +} + +BOOST_AUTO_TEST_SUITE_END() diff --git a/src/wallet/test/util.cpp b/src/wallet/test/util.cpp new file mode 100644 index 0000000000..c3061b93c0 --- /dev/null +++ b/src/wallet/test/util.cpp @@ -0,0 +1,38 @@ +// Copyright (c) 2021 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 <wallet/test/util.h> + +#include <chain.h> +#include <key.h> +#include <test/util/setup_common.h> +#include <wallet/wallet.h> +#include <wallet/walletdb.h> + +#include <boost/test/unit_test.hpp> + +#include <memory> + +std::unique_ptr<CWallet> CreateSyncedWallet(interfaces::Chain& chain, CChain& cchain, const CKey& key) +{ + auto wallet = std::make_unique<CWallet>(&chain, "", CreateMockWalletDatabase()); + { + LOCK2(wallet->cs_wallet, ::cs_main); + wallet->SetLastBlockProcessed(cchain.Height(), cchain.Tip()->GetBlockHash()); + } + wallet->LoadWallet(); + { + auto spk_man = wallet->GetOrCreateLegacyScriptPubKeyMan(); + LOCK2(wallet->cs_wallet, spk_man->cs_KeyStore); + spk_man->AddKeyPubKey(key, key.GetPubKey()); + } + WalletRescanReserver reserver(*wallet); + reserver.reserve(); + CWallet::ScanResult result = wallet->ScanForWalletTransactions(cchain.Genesis()->GetBlockHash(), 0 /* start_height */, {} /* max_height */, reserver, false /* update */); + BOOST_CHECK_EQUAL(result.status, CWallet::ScanResult::SUCCESS); + BOOST_CHECK_EQUAL(result.last_scanned_block, cchain.Tip()->GetBlockHash()); + BOOST_CHECK_EQUAL(*result.last_scanned_height, cchain.Height()); + BOOST_CHECK(result.last_failed_block.IsNull()); + return wallet; +} diff --git a/src/wallet/test/util.h b/src/wallet/test/util.h new file mode 100644 index 0000000000..288c111571 --- /dev/null +++ b/src/wallet/test/util.h @@ -0,0 +1,19 @@ +// Copyright (c) 2021 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#ifndef BITCOIN_WALLET_TEST_UTIL_H +#define BITCOIN_WALLET_TEST_UTIL_H + +#include <memory> + +class CChain; +class CKey; +class CWallet; +namespace interfaces { +class Chain; +} // namespace interfaces + +std::unique_ptr<CWallet> CreateSyncedWallet(interfaces::Chain& chain, CChain& cchain, const CKey& key); + +#endif // BITCOIN_WALLET_TEST_UTIL_H diff --git a/src/wallet/test/wallet_tests.cpp b/src/wallet/test/wallet_tests.cpp index a0070b8dd3..75a08b6f74 100644 --- a/src/wallet/test/wallet_tests.cpp +++ b/src/wallet/test/wallet_tests.cpp @@ -20,6 +20,7 @@ #include <util/translation.h> #include <validation.h> #include <wallet/coincontrol.h> +#include <wallet/test/util.h> #include <wallet/test/wallet_test_fixture.h> #include <boost/test/unit_test.hpp> @@ -480,20 +481,7 @@ public: ListCoinsTestingSetup() { CreateAndProcessBlock({}, GetScriptForRawPubKey(coinbaseKey.GetPubKey())); - wallet = std::make_unique<CWallet>(m_node.chain.get(), "", CreateMockWalletDatabase()); - { - LOCK2(wallet->cs_wallet, ::cs_main); - wallet->SetLastBlockProcessed(m_node.chainman->ActiveChain().Height(), m_node.chainman->ActiveChain().Tip()->GetBlockHash()); - } - wallet->LoadWallet(); - AddKey(*wallet, coinbaseKey); - WalletRescanReserver reserver(*wallet); - reserver.reserve(); - CWallet::ScanResult result = wallet->ScanForWalletTransactions(m_node.chainman->ActiveChain().Genesis()->GetBlockHash(), 0 /* start_height */, {} /* max_height */, reserver, false /* update */); - BOOST_CHECK_EQUAL(result.status, CWallet::ScanResult::SUCCESS); - BOOST_CHECK_EQUAL(result.last_scanned_block, m_node.chainman->ActiveChain().Tip()->GetBlockHash()); - BOOST_CHECK_EQUAL(*result.last_scanned_height, m_node.chainman->ActiveChain().Height()); - BOOST_CHECK(result.last_failed_block.IsNull()); + wallet = CreateSyncedWallet(*m_node.chain, m_node.chainman->ActiveChain(), coinbaseKey); } ~ListCoinsTestingSetup() |