From e3b2222144a0def7fa61822bdd11fb7e6bdc70ec Mon Sep 17 00:00:00 2001 From: Matt Corallo Date: Mon, 25 Apr 2016 15:51:08 -0700 Subject: Add some blockencodings tests --- src/Makefile.test.include | 1 + src/test/blockencodings_tests.cpp | 315 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 316 insertions(+) create mode 100644 src/test/blockencodings_tests.cpp (limited to 'src') diff --git a/src/Makefile.test.include b/src/Makefile.test.include index 41d811fb54..c8918eb53f 100644 --- a/src/Makefile.test.include +++ b/src/Makefile.test.include @@ -45,6 +45,7 @@ BITCOIN_TESTS =\ test/base58_tests.cpp \ test/base64_tests.cpp \ test/bip32_tests.cpp \ + test/blockencodings_tests.cpp \ test/bloom_tests.cpp \ test/Checkpoints_tests.cpp \ test/coins_tests.cpp \ diff --git a/src/test/blockencodings_tests.cpp b/src/test/blockencodings_tests.cpp new file mode 100644 index 0000000000..3884bf3fe3 --- /dev/null +++ b/src/test/blockencodings_tests.cpp @@ -0,0 +1,315 @@ +// Copyright (c) 2011-2015 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 "blockencodings.h" +#include "consensus/merkle.h" +#include "chainparams.h" +#include "random.h" + +#include "test/test_bitcoin.h" + +#include + +struct RegtestingSetup : public TestingSetup { + RegtestingSetup() : TestingSetup(CBaseChainParams::REGTEST) {} +}; + +BOOST_FIXTURE_TEST_SUITE(blockencodings_tests, RegtestingSetup) + +static CBlock BuildBlockTestCase() { + CBlock block; + CMutableTransaction tx; + tx.vin.resize(1); + tx.vin[0].scriptSig.resize(10); + tx.vout.resize(1); + tx.vout[0].nValue = 42; + + block.vtx.resize(3); + block.vtx[0] = tx; + block.nVersion = 42; + block.hashPrevBlock = GetRandHash(); + block.nBits = 0x207fffff; + + tx.vin[0].prevout.hash = GetRandHash(); + tx.vin[0].prevout.n = 0; + block.vtx[1] = tx; + + tx.vin.resize(10); + for (size_t i = 0; i < tx.vin.size(); i++) { + tx.vin[i].prevout.hash = GetRandHash(); + tx.vin[i].prevout.n = 0; + } + block.vtx[2] = tx; + + bool mutated; + block.hashMerkleRoot = BlockMerkleRoot(block, &mutated); + assert(!mutated); + while (!CheckProofOfWork(block.GetHash(), block.nBits, Params().GetConsensus())) ++block.nNonce; + return block; +} + +// Number of shared use_counts we expect for a tx we havent touched +// == 2 (mempool + our copy from the GetSharedTx call) +#define SHARED_TX_OFFSET 2 + +BOOST_AUTO_TEST_CASE(SimpleRoundTripTest) +{ + CTxMemPool pool(CFeeRate(0)); + TestMemPoolEntryHelper entry; + CBlock block(BuildBlockTestCase()); + + pool.addUnchecked(block.vtx[2].GetHash(), entry.FromTx(block.vtx[2])); + BOOST_CHECK_EQUAL(pool.mapTx.find(block.vtx[2].GetHash())->GetSharedTx().use_count(), SHARED_TX_OFFSET + 0); + + // Do a simple ShortTxIDs RT + { + CBlockHeaderAndShortTxIDs shortIDs(block); + + CDataStream stream(SER_NETWORK, PROTOCOL_VERSION); + stream << shortIDs; + + CBlockHeaderAndShortTxIDs shortIDs2; + stream >> shortIDs2; + + PartiallyDownloadedBlock partialBlock(&pool); + BOOST_CHECK(partialBlock.InitData(shortIDs2) == READ_STATUS_OK); + BOOST_CHECK( partialBlock.IsTxAvailable(0)); + BOOST_CHECK(!partialBlock.IsTxAvailable(1)); + BOOST_CHECK( partialBlock.IsTxAvailable(2)); + + BOOST_CHECK_EQUAL(pool.mapTx.find(block.vtx[2].GetHash())->GetSharedTx().use_count(), SHARED_TX_OFFSET + 1); + + std::list removed; + pool.removeRecursive(block.vtx[2], removed); + BOOST_CHECK_EQUAL(removed.size(), 1); + + CBlock block2; + std::vector vtx_missing; + BOOST_CHECK(partialBlock.FillBlock(block2, vtx_missing) == READ_STATUS_INVALID); // No transactions + + vtx_missing.push_back(block.vtx[2]); // Wrong transaction + partialBlock.FillBlock(block2, vtx_missing); // Current implementation doesn't check txn here, but don't require that + bool mutated; + BOOST_CHECK(block.hashMerkleRoot != BlockMerkleRoot(block2, &mutated)); + + vtx_missing[0] = block.vtx[1]; + CBlock block3; + BOOST_CHECK(partialBlock.FillBlock(block3, vtx_missing) == READ_STATUS_OK); + BOOST_CHECK_EQUAL(block.GetHash().ToString(), block3.GetHash().ToString()); + BOOST_CHECK_EQUAL(block.hashMerkleRoot.ToString(), BlockMerkleRoot(block3, &mutated).ToString()); + BOOST_CHECK(!mutated); + } +} + +class TestHeaderAndShortIDs { + // Utility to encode custom CBlockHeaderAndShortTxIDs +public: + CBlockHeader header; + uint64_t nonce; + std::vector shorttxids; + std::vector prefilledtxn; + + TestHeaderAndShortIDs(const CBlockHeaderAndShortTxIDs& orig) { + CDataStream stream(SER_NETWORK, PROTOCOL_VERSION); + stream << orig; + stream >> *this; + } + TestHeaderAndShortIDs(const CBlock& block) : + TestHeaderAndShortIDs(CBlockHeaderAndShortTxIDs(block)) {} + + uint64_t GetShortID(const uint256& txhash) const { + CDataStream stream(SER_NETWORK, PROTOCOL_VERSION); + stream << *this; + CBlockHeaderAndShortTxIDs base; + stream >> base; + return base.GetShortID(txhash); + } + + ADD_SERIALIZE_METHODS; + + template + inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) { + READWRITE(header); + READWRITE(nonce); + size_t shorttxids_size = shorttxids.size(); + READWRITE(VARINT(shorttxids_size)); + shorttxids.resize(shorttxids_size); + for (size_t i = 0; i < shorttxids.size(); i++) { + uint32_t lsb = shorttxids[i] & 0xffffffff; + uint16_t msb = (shorttxids[i] >> 32) & 0xffff; + READWRITE(lsb); + READWRITE(msb); + shorttxids[i] = (uint64_t(msb) << 32) | uint64_t(lsb); + } + READWRITE(prefilledtxn); + } +}; + +BOOST_AUTO_TEST_CASE(NonCoinbasePreforwardRTTest) +{ + CTxMemPool pool(CFeeRate(0)); + TestMemPoolEntryHelper entry; + CBlock block(BuildBlockTestCase()); + + pool.addUnchecked(block.vtx[2].GetHash(), entry.FromTx(block.vtx[2])); + BOOST_CHECK_EQUAL(pool.mapTx.find(block.vtx[2].GetHash())->GetSharedTx().use_count(), SHARED_TX_OFFSET + 0); + + // Test with pre-forwarding tx 1, but not coinbase + { + TestHeaderAndShortIDs shortIDs(block); + shortIDs.prefilledtxn.resize(1); + shortIDs.prefilledtxn[0] = {1, block.vtx[1]}; + shortIDs.shorttxids.resize(2); + shortIDs.shorttxids[0] = shortIDs.GetShortID(block.vtx[0].GetHash()); + shortIDs.shorttxids[1] = shortIDs.GetShortID(block.vtx[2].GetHash()); + + CDataStream stream(SER_NETWORK, PROTOCOL_VERSION); + stream << shortIDs; + + CBlockHeaderAndShortTxIDs shortIDs2; + stream >> shortIDs2; + + PartiallyDownloadedBlock partialBlock(&pool); + BOOST_CHECK(partialBlock.InitData(shortIDs2) == READ_STATUS_OK); + BOOST_CHECK(!partialBlock.IsTxAvailable(0)); + BOOST_CHECK( partialBlock.IsTxAvailable(1)); + BOOST_CHECK( partialBlock.IsTxAvailable(2)); + + BOOST_CHECK_EQUAL(pool.mapTx.find(block.vtx[2].GetHash())->GetSharedTx().use_count(), SHARED_TX_OFFSET + 1); + + CBlock block2; + std::vector vtx_missing; + BOOST_CHECK(partialBlock.FillBlock(block2, vtx_missing) == READ_STATUS_INVALID); // No transactions + + vtx_missing.push_back(block.vtx[1]); // Wrong transaction + partialBlock.FillBlock(block2, vtx_missing); // Current implementation doesn't check txn here, but don't require that + bool mutated; + BOOST_CHECK(block.hashMerkleRoot != BlockMerkleRoot(block2, &mutated)); + + vtx_missing[0] = block.vtx[0]; + CBlock block3; + BOOST_CHECK(partialBlock.FillBlock(block3, vtx_missing) == READ_STATUS_OK); + BOOST_CHECK_EQUAL(block.GetHash().ToString(), block3.GetHash().ToString()); + BOOST_CHECK_EQUAL(block.hashMerkleRoot.ToString(), BlockMerkleRoot(block3, &mutated).ToString()); + BOOST_CHECK(!mutated); + + BOOST_CHECK_EQUAL(pool.mapTx.find(block.vtx[2].GetHash())->GetSharedTx().use_count(), SHARED_TX_OFFSET + 1); + } + BOOST_CHECK_EQUAL(pool.mapTx.find(block.vtx[2].GetHash())->GetSharedTx().use_count(), SHARED_TX_OFFSET + 0); +} + +BOOST_AUTO_TEST_CASE(SufficientPreforwardRTTest) +{ + CTxMemPool pool(CFeeRate(0)); + TestMemPoolEntryHelper entry; + CBlock block(BuildBlockTestCase()); + + pool.addUnchecked(block.vtx[1].GetHash(), entry.FromTx(block.vtx[1])); + BOOST_CHECK_EQUAL(pool.mapTx.find(block.vtx[1].GetHash())->GetSharedTx().use_count(), SHARED_TX_OFFSET + 0); + + // Test with pre-forwarding coinbase + tx 2 with tx 1 in mempool + { + TestHeaderAndShortIDs shortIDs(block); + shortIDs.prefilledtxn.resize(2); + shortIDs.prefilledtxn[0] = {0, block.vtx[0]}; + shortIDs.prefilledtxn[1] = {1, block.vtx[2]}; // id == 1 as it is 1 after index 1 + shortIDs.shorttxids.resize(1); + shortIDs.shorttxids[0] = shortIDs.GetShortID(block.vtx[1].GetHash()); + + CDataStream stream(SER_NETWORK, PROTOCOL_VERSION); + stream << shortIDs; + + CBlockHeaderAndShortTxIDs shortIDs2; + stream >> shortIDs2; + + PartiallyDownloadedBlock partialBlock(&pool); + BOOST_CHECK(partialBlock.InitData(shortIDs2) == READ_STATUS_OK); + BOOST_CHECK( partialBlock.IsTxAvailable(0)); + BOOST_CHECK( partialBlock.IsTxAvailable(1)); + BOOST_CHECK( partialBlock.IsTxAvailable(2)); + + BOOST_CHECK_EQUAL(pool.mapTx.find(block.vtx[1].GetHash())->GetSharedTx().use_count(), SHARED_TX_OFFSET + 1); + + CBlock block2; + std::vector vtx_missing; + BOOST_CHECK(partialBlock.FillBlock(block2, vtx_missing) == READ_STATUS_OK); + BOOST_CHECK_EQUAL(block.GetHash().ToString(), block2.GetHash().ToString()); + bool mutated; + BOOST_CHECK_EQUAL(block.hashMerkleRoot.ToString(), BlockMerkleRoot(block2, &mutated).ToString()); + BOOST_CHECK(!mutated); + + BOOST_CHECK_EQUAL(pool.mapTx.find(block.vtx[1].GetHash())->GetSharedTx().use_count(), SHARED_TX_OFFSET + 1); + } + BOOST_CHECK_EQUAL(pool.mapTx.find(block.vtx[1].GetHash())->GetSharedTx().use_count(), SHARED_TX_OFFSET + 0); +} + +BOOST_AUTO_TEST_CASE(EmptyBlockRoundTripTest) +{ + CTxMemPool pool(CFeeRate(0)); + CMutableTransaction coinbase; + coinbase.vin.resize(1); + coinbase.vin[0].scriptSig.resize(10); + coinbase.vout.resize(1); + coinbase.vout[0].nValue = 42; + + CBlock block; + block.vtx.resize(1); + block.vtx[0] = coinbase; + block.nVersion = 42; + block.hashPrevBlock = GetRandHash(); + block.nBits = 0x207fffff; + + bool mutated; + block.hashMerkleRoot = BlockMerkleRoot(block, &mutated); + assert(!mutated); + while (!CheckProofOfWork(block.GetHash(), block.nBits, Params().GetConsensus())) ++block.nNonce; + + // Test simple header round-trip with only coinbase + { + CBlockHeaderAndShortTxIDs shortIDs(block); + + CDataStream stream(SER_NETWORK, PROTOCOL_VERSION); + stream << shortIDs; + + CBlockHeaderAndShortTxIDs shortIDs2; + stream >> shortIDs2; + + PartiallyDownloadedBlock partialBlock(&pool); + BOOST_CHECK(partialBlock.InitData(shortIDs2) == READ_STATUS_OK); + BOOST_CHECK(partialBlock.IsTxAvailable(0)); + + CBlock block2; + std::vector vtx_missing; + BOOST_CHECK(partialBlock.FillBlock(block2, vtx_missing) == READ_STATUS_OK); + BOOST_CHECK_EQUAL(block.GetHash().ToString(), block2.GetHash().ToString()); + bool mutated; + BOOST_CHECK_EQUAL(block.hashMerkleRoot.ToString(), BlockMerkleRoot(block2, &mutated).ToString()); + BOOST_CHECK(!mutated); + } +} + +BOOST_AUTO_TEST_CASE(TransactionsRequestSerializationTest) { + BlockTransactionsRequest req1; + req1.blockhash = GetRandHash(); + req1.indexes.resize(4); + req1.indexes[0] = 0; + req1.indexes[1] = 1; + req1.indexes[2] = 3; + req1.indexes[3] = 4; + + CDataStream stream(SER_NETWORK, PROTOCOL_VERSION); + stream << req1; + + BlockTransactionsRequest req2; + stream >> req2; + + BOOST_CHECK_EQUAL(req1.blockhash.ToString(), req2.blockhash.ToString()); + BOOST_CHECK_EQUAL(req1.indexes.size(), req2.indexes.size()); + BOOST_CHECK_EQUAL(req1.indexes[0], req2.indexes[0]); + BOOST_CHECK_EQUAL(req1.indexes[1], req2.indexes[1]); + BOOST_CHECK_EQUAL(req1.indexes[2], req2.indexes[2]); + BOOST_CHECK_EQUAL(req1.indexes[3], req2.indexes[3]); +} + +BOOST_AUTO_TEST_SUITE_END() -- cgit v1.2.3