Differential D1892 Diff 5317 src/test/mempool_tests.cpp

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src/test/mempool_tests.cpp

	// Copyright (c) 2011-2016 The Bitcoin Core developers			// Copyright (c) 2011-2016 The Bitcoin Core developers
	// Distributed under the MIT software license, see the accompanying			// Distributed under the MIT software license, see the accompanying
	// file COPYING or http://www.opensource.org/licenses/mit-license.php.			// file COPYING or http://www.opensource.org/licenses/mit-license.php.

	#include "policy/policy.h"			#include "policy/policy.h"
	#include "txmempool.h"			#include "txmempool.h"
	#include "util.h"			#include "util.h"

	#include "test/test_bitcoin.h"			#include "test/test_bitcoin.h"

				#include <algorithm>
	#include <boost/test/unit_test.hpp>			#include <boost/test/unit_test.hpp>
	#include <list>			#include <list>
	#include <vector>			#include <vector>

	BOOST_FIXTURE_TEST_SUITE(mempool_tests, TestingSetup)			BOOST_FIXTURE_TEST_SUITE(mempool_tests, TestingSetup)

				BOOST_AUTO_TEST_CASE(TestPackageAccounting) {
				CTxMemPool testPool;
				TestMemPoolEntryHelper entry;
				CMutableTransaction parentOfAll;

				std::vector<CTxIn> outpoints;
				const size_t maxOutputs = 3;

				// Construct a parent for the rest of the chain
				parentOfAll.vin.resize(1);
				parentOfAll.vin[0].scriptSig = CScript();
				// Give us a couple outpoints so we can spend them
				for (size_t i = 0; i < maxOutputs; i++) {
				parentOfAll.vout.emplace_back(10 * SATOSHI, CScript() << OP_TRUE);
				}
				TxId parentOfAllId = parentOfAll.GetId();
				testPool.addUnchecked(parentOfAllId, entry.FromTx(parentOfAll));

				// Add some outpoints to the tracking vector
				for (size_t i = 0; i < maxOutputs; i++) {
				outpoints.emplace_back(COutPoint(parentOfAllId, i));
				}

				Amount totalFee = Amount::zero();
				size_t totalSize = CTransaction(parentOfAll).GetTotalSize();

				// Generate 100 transactions
				for (size_t totalTransactions = 0; totalTransactions < 100;
				totalTransactions++) {
				CMutableTransaction mtx;

				uint64_t minAncestors = std::numeric_limits<size_t>::max();
				uint64_t maxAncestors = 0;
				Amount minFees = MAX_MONEY;
				Amount maxFees = Amount::zero();
				uint64_t minSize = std::numeric_limits<size_t>::max();
				uint64_t maxSize = 0;
				// Consume random inputs, but make sure we don't consume more than
				// available
				for (size_t input = std::min(InsecureRandRange(maxOutputs) + 1,
				uint64_t(outpoints.size()));
				input > 0; input--) {
				std::swap(outpoints[InsecureRandRange(outpoints.size())],
				outpoints.back());
				mtx.vin.emplace_back(outpoints.back());
				outpoints.pop_back();

				// We don't know exactly how many ancestors this transaction has
				// due to possible duplicates. Calculate a valid range based on
				// parents.

				CTxMemPoolEntry parent =
				*testPool.mapTx.find(mtx.vin.back().prevout.GetTxId());

				minAncestors =
				std::min(minAncestors, parent.GetCountWithAncestors());
				maxAncestors += parent.GetCountWithAncestors();
				minFees = std::min(minFees, parent.GetModFeesWithAncestors());
				maxFees += parent.GetModFeesWithAncestors();
				minSize = std::min(minSize, parent.GetSizeWithAncestors());
				maxSize += parent.GetSizeWithAncestors();
				}

				// Produce random number of outputs
				for (size_t output = InsecureRandRange(maxOutputs) + 1; output > 0;
				output--) {
				mtx.vout.emplace_back(10 * SATOSHI, CScript() << OP_TRUE);
				}

				CTransaction tx(mtx);
				TxId curId = tx.GetId();

				// Record the outputs
				for (size_t output = tx.vout.size(); output > 0; output--) {
				outpoints.emplace_back(COutPoint(curId, output));
				}

				Amount randFee = int64_t(InsecureRandRange(300)) * SATOSHI;

				testPool.addUnchecked(curId, entry.Fee(randFee).FromTx(tx));

				// Add this transaction to the totals.
				minAncestors += 1;
				maxAncestors += 1;
				minFees += randFee;
				maxFees += randFee;
				minSize += CTransaction(tx).GetTotalSize();
				maxSize += CTransaction(tx).GetTotalSize();

				// Calculate overall values
				totalFee += randFee;
				totalSize += CTransaction(tx).GetTotalSize();
				CTxMemPoolEntry parentEntry = *testPool.mapTx.find(parentOfAllId);
				CTxMemPoolEntry latestEntry = *testPool.mapTx.find(curId);

				// Ensure values are within the expected ranges
				BOOST_CHECK(latestEntry.GetCountWithAncestors() >= minAncestors);
				BOOST_CHECK(latestEntry.GetCountWithAncestors() <= maxAncestors);

				BOOST_CHECK(latestEntry.GetSizeWithAncestors() >= minSize);
				BOOST_CHECK(latestEntry.GetSizeWithAncestors() <= maxSize);

				BOOST_CHECK(latestEntry.GetModFeesWithAncestors() >= minFees);
				BOOST_CHECK(latestEntry.GetModFeesWithAncestors() <= maxFees);

				BOOST_CHECK_EQUAL(parentEntry.GetCountWithDescendants(),
				testPool.mapTx.size());
				BOOST_CHECK_EQUAL(parentEntry.GetSizeWithDescendants(), totalSize);
				BOOST_CHECK_EQUAL(parentEntry.GetModFeesWithDescendants(), totalFee);
				}
				}

	BOOST_AUTO_TEST_CASE(MempoolRemoveTest) {			BOOST_AUTO_TEST_CASE(MempoolRemoveTest) {
	// Test CTxMemPool::remove functionality			// Test CTxMemPool::remove functionality

	TestMemPoolEntryHelper entry;			TestMemPoolEntryHelper entry;
	// Parent transaction with three children, and three grand-children:			// Parent transaction with three children, and three grand-children:
	CMutableTransaction txParent;			CMutableTransaction txParent;
	txParent.vin.resize(1);			txParent.vin.resize(1);
	txParent.vin[0].scriptSig = CScript() << OP_11;			txParent.vin[0].scriptSig = CScript() << OP_11;
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