Differential D8540 Diff 26092 src/test/validation_chainstatemanager_tests.cpp

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src/test/validation_chainstatemanager_tests.cpp

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				// Copyright (c) 2019 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 <chainparams.h>
				#include <config.h>
				#include <consensus/validation.h>
				#include <random.h>
				#include <sync.h>
				#include <test/util/setup_common.h>
				#include <validation.h>

				#include <vector>

				#include <boost/test/unit_test.hpp>

				BOOST_FIXTURE_TEST_SUITE(validation_chainstatemanager_tests, TestingSetup)

				//! Basic tests for ChainstateManager.
				//!
				//! First create a legacy (IBD) chainstate, then create a snapshot chainstate.
				BOOST_AUTO_TEST_CASE(chainstatemanager) {
				ChainstateManager manager;
				std::vector<CChainState *> chainstates;
				const CChainParams &chainparams = Params();

				// Create a legacy (IBD) chainstate.
				//
				ENTER_CRITICAL_SECTION(cs_main);
				CChainState &c1 = manager.InitializeChainstate();
				LEAVE_CRITICAL_SECTION(cs_main);
				chainstates.push_back(&c1);
				c1.InitCoinsDB(
				/* cache_size_bytes / 1 << 23, / in_memory */ true,
				/* should_wipe */ false);
				WITH_LOCK(::cs_main, c1.InitCoinsCache());

				BOOST_CHECK(!manager.IsSnapshotActive());
				BOOST_CHECK(!manager.IsSnapshotValidated());
				BOOST_CHECK(!manager.IsBackgroundIBD(&c1));
				auto all = manager.GetAll();
				BOOST_CHECK_EQUAL_COLLECTIONS(all.begin(), all.end(), chainstates.begin(),
				chainstates.end());

				auto &active_chain = manager.ActiveChain();
				BOOST_CHECK_EQUAL(&active_chain, &c1.m_chain);

				BOOST_CHECK_EQUAL(manager.ActiveHeight(), -1);

				auto active_tip = manager.ActiveTip();
				auto exp_tip = c1.m_chain.Tip();
				BOOST_CHECK_EQUAL(active_tip, exp_tip);

				auto &validated_cs = manager.ValidatedChainstate();
				BOOST_CHECK_EQUAL(&validated_cs, &c1);

				// Create a snapshot-based chainstate.
				//
				ENTER_CRITICAL_SECTION(cs_main);
				CChainState &c2 = manager.InitializeChainstate(BlockHash(GetRandHash()));
				LEAVE_CRITICAL_SECTION(cs_main);
				chainstates.push_back(&c2);
				c2.InitCoinsDB(
				/* cache_size_bytes / 1 << 23, / in_memory */ true,
				/* should_wipe */ false);
				WITH_LOCK(::cs_main, c2.InitCoinsCache());
				// Unlike c1, which doesn't have any blocks. Gets us different tip, height.
				c2.LoadGenesisBlock(chainparams);
				BlockValidationState _;
				BOOST_CHECK(c2.ActivateBestChain(GetConfig(), _, nullptr));

				BOOST_CHECK(manager.IsSnapshotActive());
				BOOST_CHECK(!manager.IsSnapshotValidated());
				BOOST_CHECK(manager.IsBackgroundIBD(&c1));
				BOOST_CHECK(!manager.IsBackgroundIBD(&c2));
				auto all2 = manager.GetAll();
				BOOST_CHECK_EQUAL_COLLECTIONS(all2.begin(), all2.end(), chainstates.begin(),
				chainstates.end());

				auto &active_chain2 = manager.ActiveChain();
				BOOST_CHECK_EQUAL(&active_chain2, &c2.m_chain);

				BOOST_CHECK_EQUAL(manager.ActiveHeight(), 0);

				auto active_tip2 = manager.ActiveTip();
				auto exp_tip2 = c2.m_chain.Tip();
				BOOST_CHECK_EQUAL(active_tip2, exp_tip2);

				// Ensure that these pointers actually correspond to different
				// CCoinsViewCache instances.
				BOOST_CHECK(exp_tip != exp_tip2);

				auto &validated_cs2 = manager.ValidatedChainstate();
				BOOST_CHECK_EQUAL(&validated_cs2, &c1);

				auto &validated_chain = manager.ValidatedChain();
				BOOST_CHECK_EQUAL(&validated_chain, &c1.m_chain);

				auto validated_tip = manager.ValidatedTip();
				exp_tip = c1.m_chain.Tip();
				BOOST_CHECK_EQUAL(validated_tip, exp_tip);

				// Avoid triggering the address sanitizer.
				WITH_LOCK(::cs_main, manager.Unload());
				}

				BOOST_AUTO_TEST_SUITE_END()