diff options
author | James O'Beirne <james.obeirne@pm.me> | 2021-04-08 10:07:58 -0400 |
---|---|---|
committer | James O'Beirne <james.obeirne@pm.me> | 2021-09-15 15:46:51 -0400 |
commit | 673a5bd3377929a0a6a62eda8b560e47bc2cca0c (patch) | |
tree | fc6d0769f3a370c62c83c4faca3a7659d4d4ec1b /src/test/validation_chainstate_tests.cpp | |
parent | 2705570109a2a90ecfd3f4180944498626fc2707 (diff) | |
download | bitcoin-673a5bd3377929a0a6a62eda8b560e47bc2cca0c.tar.xz |
test: validation: add unittest for UpdateTip behavior
Diffstat (limited to 'src/test/validation_chainstate_tests.cpp')
-rw-r--r-- | src/test/validation_chainstate_tests.cpp | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/test/validation_chainstate_tests.cpp b/src/test/validation_chainstate_tests.cpp index 2893b412fb..2514e65194 100644 --- a/src/test/validation_chainstate_tests.cpp +++ b/src/test/validation_chainstate_tests.cpp @@ -2,10 +2,13 @@ // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. // +#include <chainparams.h> #include <random.h> #include <uint256.h> #include <consensus/validation.h> #include <sync.h> +#include <rpc/blockchain.h> +#include <test/util/chainstate.h> #include <test/util/setup_common.h> #include <validation.h> @@ -72,4 +75,77 @@ BOOST_AUTO_TEST_CASE(validation_chainstate_resize_caches) WITH_LOCK(::cs_main, manager.Unload()); } +//! Test UpdateTip behavior for both active and background chainstates. +//! +//! When run on the background chainstate, UpdateTip should do a subset +//! of what it does for the active chainstate. +BOOST_FIXTURE_TEST_CASE(chainstate_update_tip, TestChain100Setup) +{ + ChainstateManager& chainman = *Assert(m_node.chainman); + uint256 curr_tip = ::g_best_block; + + // Mine 10 more blocks, putting at us height 110 where a valid assumeutxo value can + // be found. + mineBlocks(10); + + // After adding some blocks to the tip, best block should have changed. + BOOST_CHECK(::g_best_block != curr_tip); + + BOOST_REQUIRE(CreateAndActivateUTXOSnapshot(m_node, m_path_root)); + + // Ensure our active chain is the snapshot chainstate. + BOOST_CHECK(chainman.IsSnapshotActive()); + + curr_tip = ::g_best_block; + + // Mine a new block on top of the activated snapshot chainstate. + mineBlocks(1); // Defined in TestChain100Setup. + + // After adding some blocks to the snapshot tip, best block should have changed. + BOOST_CHECK(::g_best_block != curr_tip); + + curr_tip = ::g_best_block; + + CChainState* background_cs; + + BOOST_CHECK_EQUAL(chainman.GetAll().size(), 2); + for (CChainState* cs : chainman.GetAll()) { + if (cs != &chainman.ActiveChainstate()) { + background_cs = cs; + } + } + BOOST_CHECK(background_cs); + + // Create a block to append to the validation chain. + std::vector<CMutableTransaction> noTxns; + CScript scriptPubKey = CScript() << ToByteVector(coinbaseKey.GetPubKey()) << OP_CHECKSIG; + CBlock validation_block = this->CreateBlock(noTxns, scriptPubKey, *background_cs); + auto pblock = std::make_shared<const CBlock>(validation_block); + BlockValidationState state; + CBlockIndex* pindex = nullptr; + const CChainParams& chainparams = Params(); + bool newblock = false; + + // TODO: much of this is inlined from ProcessNewBlock(); just reuse PNB() + // once it is changed to support multiple chainstates. + { + LOCK(::cs_main); + bool checked = CheckBlock(*pblock, state, chainparams.GetConsensus()); + BOOST_CHECK(checked); + bool accepted = background_cs->AcceptBlock( + pblock, state, &pindex, true, nullptr, &newblock); + BOOST_CHECK(accepted); + } + // UpdateTip is called here + bool block_added = background_cs->ActivateBestChain(state, pblock); + + // Ensure tip is as expected + BOOST_CHECK_EQUAL(background_cs->m_chain.Tip()->GetBlockHash(), validation_block.GetHash()); + + // g_best_block should be unchanged after adding a block to the background + // validation chain. + BOOST_CHECK(block_added); + BOOST_CHECK_EQUAL(curr_tip, ::g_best_block); +} + BOOST_AUTO_TEST_SUITE_END() |