Browse Source
It breaks the new mingw tests! See - https://travis-ci.org/bitcoin/bitcoin/jobs/36845581 - https://travis-ci.org/bitcoin/bitcoin/jobs/36845582 This reverts commitpull/4/head4705902777,5e2e7fcb99,a25fd6be13.
Wladimir J. van der Laan
10 years ago
12 changed files with 4 additions and 371 deletions
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// Copyright (c) 2011-2014 The Bitcoin Core developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "main.h" |
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#include "miner.h" |
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#include "uint256.h" |
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#include "util.h" |
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#include <boost/test/unit_test.hpp> |
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// This test cheecks the majority rule which states that after 1000 v2 blocks no new v1 block can be part of that branch.
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BOOST_AUTO_TEST_SUITE(blockv2_tests) |
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static CScript scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG; |
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static void SetEmptyBlock(CBlock * pblock) |
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{ |
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pblock->nVersion = 2; |
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pblock->nTime = chainActive.Tip()->GetMedianTimePast()+1; |
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pblock->nNonce = 0; |
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} |
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static void SetBlockDefaultAttributesAndHeight(CBlock * pblock,bool addHeight,int heightDifference) |
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{ |
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SetEmptyBlock(pblock); |
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// Add the coinbase
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CMutableTransaction txCoinbase(pblock->vtx[0]); |
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if (addHeight) |
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txCoinbase.vin[0].scriptSig = (CScript() << (chainActive.Height()+1+heightDifference) << 0); |
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else |
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txCoinbase.vin[0].scriptSig = (CScript() << heightDifference << 0); // At least size 2, this is a protocol spec
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txCoinbase.vout[0].scriptPubKey = CScript(); |
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pblock->vtx[0] = CTransaction(txCoinbase); |
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pblock->hashMerkleRoot = pblock->BuildMerkleTree(); |
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} |
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void CheckSubsidyHalving(CBlockTemplate * &pblocktemplate, CBlock * &pblock) |
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{ |
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if ((chainActive.Height()+1) % Params().SubsidyHalvingInterval() == 0) |
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{ |
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// The RegTest network has a low subsidy halving interval (150) so
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// we must recompute the coinbase subsidy if we reach the boundary.
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// The unittest network allows modifying this interval. We check it so this
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// test can work in any network.
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// preserve parent hash
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uint256 prevParent = pblock->hashPrevBlock; |
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delete pblocktemplate; |
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pblocktemplate = CreateNewBlock(scriptPubKey); |
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pblock = &pblocktemplate->block; // pointer for convenience
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pblock->hashPrevBlock = prevParent; |
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} |
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} |
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void CheckBlockAddedToBestChainSuccessfully(CBlock *pblock) |
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{ |
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int PreviousHeight; |
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CValidationState state; |
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PreviousHeight = chainActive.Height(); |
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BOOST_CHECK(ProcessBlock(state, NULL, pblock)); |
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BOOST_CHECK(state.IsValid()); |
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BOOST_CHECK((PreviousHeight+1) == chainActive.Height()); // to differentiate from orphan blocks, which also get accepted in ProcessBlock()
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// Previous checks do not assure the current best chain has pblock as tip. It could be the case that a because
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// of a malfunction in the chain reorganization code, a reorganization causes an increase of the chain length, but with another tip.
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// So we also check that.
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BOOST_CHECK(chainActive.Tip()->GetBlockHash()==pblock->GetHash()); |
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} |
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void Blockv2test() |
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{ |
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assert(Params().NetworkID() == CBaseChainParams::UNITTEST); |
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ModifiableParams()->setSkipProofOfWorkCheck(true); |
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// We don't know the state of the block-chain here: it depends on which other tests are run before this test.
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// See https://github.com/bitcoin/bitcoin/pull/4688 for a patch that allows the re-creation of the block-chain
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// for each testcase that requires it.
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// If miner_tests.cpp is run before, the chain will be 100 blocks long, and all of them will be v1
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LogPrintf("Blockv2test testcase starts\n"); |
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CBlockTemplate *pblocktemplate; |
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CScript script; |
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uint256 hash; |
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int PreviousHeight; |
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LOCK(cs_main); |
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// Simple block creation, nothing special yet.
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pblocktemplate = CreateNewBlock(scriptPubKey); |
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CBlock *pblock = &pblocktemplate->block; // pointer for convenience
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LogPrintf("Blockv2test block v1 add begin\n"); |
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////////////////////////////////////////////////////////////////////////////////////////
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// First create a block v1, check that it is accepted. The block has an invalid height.
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////////////////////////////////////////////////////////////////////////////////////////
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SetBlockDefaultAttributesAndHeight(pblock,false,5000); |
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pblock->nVersion = 1; |
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CValidationState state1; |
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PreviousHeight = chainActive.Height(); |
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BOOST_CHECK(ProcessBlock(state1, NULL, pblock)); |
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BOOST_CHECK(state1.IsValid()); |
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BOOST_CHECK((PreviousHeight+1) == chainActive.Height()); // to differentiate from orphan blocks, which also get accepted in ProcessBlock()
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pblock->hashPrevBlock = pblock->GetHash(); // update parent
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// First check that the supermajority threshold is exactly 1000 blocks
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BOOST_CHECK(Params().ToCheckBlockUpgradeMajority()==1000); //
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BOOST_CHECK(Params().EnforceBlockUpgradeMajority()==750); |
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BOOST_CHECK(Params().RejectBlockOutdatedMajority()==950); |
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// Over the last 1000 blocks, 750 blocks must be v2 to switch to v2-only mode.
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// Here we're testing only the last 750, not any subset.
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LogPrintf("Blockv2test BIP30 repetition begin\n"); |
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///////////////////////////////////////////////////////////////////////////////////////////////////////
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// First, if we try to add a block v2 with the same coinbase tx, we should get
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// "bad-txns-BIP30" because the coinbase tx has the same hash as the previous.
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// Even if ConnectBlock returns a "bad-txns-BIP30", ActivateBestChainStep clears
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// the state, so we get true here and the "bad-txns-BIP30" reason is lost. But this
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// is the intended behaviour: Receiving a single block can cause zero or multiple blocks to be
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// connected, and ActivateBestChain's responsibility is just switching the best block whatsoever.
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// Feedback about failures causes a reject message to be sent to the peer from which we received
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// the actual block (not necessarily the same as from whom we got the block that caused the reorg),
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// for which we remember the peerid.
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// Because we cannot access the failure reason here, we just verify instead that the chain
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// height has not been incremented.
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//////////////////////////////////////////////////////////////////////////////////////////////////////
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CValidationState state7; |
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PreviousHeight = chainActive.Height(); |
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CheckSubsidyHalving(pblocktemplate,pblock); |
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SetBlockDefaultAttributesAndHeight(pblock,false,5000); //
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pblock->nVersion = 2; |
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BOOST_CHECK(ProcessBlock(state7, NULL, pblock)); // should we care about the return value?
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BOOST_CHECK(state7.IsValid()); |
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BOOST_CHECK(PreviousHeight == chainActive.Height()); // we check the block has not been added.
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LogPrintf("Blockv2test 750 v2 blocks begin\n"); |
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////////////////////////////
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// Now create 750 v2 blocks
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////////////////////////////
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for (int i=0;i<750;i++) |
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{ |
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LogPrintf("Blockv2test block %d begin\n",i); |
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CheckSubsidyHalving(pblocktemplate,pblock); |
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// We add a value to the height to make is NOT equal to the actual height.
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SetBlockDefaultAttributesAndHeight(pblock,true,1000); // blocks version 2 without height are allowed! for only 750 blocks
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pblock->nVersion = 2; |
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CheckBlockAddedToBestChainSuccessfully(pblock); |
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pblock->hashPrevBlock = pblock->GetHash(); // update parent
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} |
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LogPrintf("Blockv2test v2 without height rejected begin\n"); |
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/////////////////////////////////////////////////////////////////////////////////////
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// Now we try to add a block v2, with an invalid height and it should be rejected.
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// We use 2000 as argument heightDifference because is not in the range [1000..1750].
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/////////////////////////////////////////////////////////////////////////////////////
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CheckSubsidyHalving(pblocktemplate,pblock); |
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SetBlockDefaultAttributesAndHeight(pblock,true,2000); //
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pblock->nVersion = 2; |
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CValidationState state0; |
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BOOST_CHECK(ProcessBlock(state0, NULL, pblock)==false); |
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BOOST_CHECK(!state0.IsValid()); |
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BOOST_CHECK(state0.GetRejectReason()=="bad-cb-height"); |
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// Do not update parent since block has failed
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LogPrintf("Blockv2test v2 with height accepted begin\n"); |
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/////////////////////////////////////////////////////////////
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// Now we add 200 additional blocks, until we get 950
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// (the threshold where v1 blocks are not accepted anymore)
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/////////////////////////////////////////////////////////////
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for (int i=0;i<200;i++) |
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{ |
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LogPrintf("Blockv2test v2block %d begin\n",i); |
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CheckSubsidyHalving(pblocktemplate,pblock); |
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SetBlockDefaultAttributesAndHeight(pblock,true,0); |
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pblock->nVersion = 2; |
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CheckBlockAddedToBestChainSuccessfully(pblock); |
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pblock->hashPrevBlock = pblock->GetHash(); // update parent
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} |
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LogPrintf("Blockv2test block v1 rejected\n"); |
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/////////////////////////////////////////////////////////////////////////////////////////
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// Now we try to add a block v1, it should be rejected, even if it hash the height field
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/////////////////////////////////////////////////////////////////////////////////////////
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CheckSubsidyHalving(pblocktemplate,pblock); |
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SetBlockDefaultAttributesAndHeight(pblock,true,0); |
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pblock->nVersion = 1; |
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CValidationState state2; |
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BOOST_CHECK(ProcessBlock(state2, NULL, pblock)==false); |
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BOOST_CHECK(!state2.IsValid()); |
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BOOST_CHECK(state2.GetRejectReason()=="bad-version"); |
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// Do not update parent since block has failed
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////////////////////////////////////////////////////////
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// Block time too old check
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////////////////////////////////////////////////////////
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CheckSubsidyHalving(pblocktemplate,pblock); |
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SetBlockDefaultAttributesAndHeight(pblock,true,0); |
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pblock->nVersion = 2; |
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pblock->nTime = chainActive.Tip()->GetMedianTimePast()-1; |
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CValidationState state4; |
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BOOST_CHECK(ProcessBlock(state4, NULL, pblock)==false); |
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BOOST_CHECK(!state4.IsValid()); |
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BOOST_CHECK(state4.GetRejectReason()=="time-too-old"); |
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// Do not update parent since block has failed
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////////////////////////////////////////////////////////
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// Adding a non-final coinbase, must modify coinbase
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////////////////////////////////////////////////////////
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CheckSubsidyHalving(pblocktemplate,pblock); |
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SetEmptyBlock(pblock); |
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// Use a mutable coinbase to change nLockTime and nSequence
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CMutableTransaction txCoinbase(pblock->vtx[0]); |
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txCoinbase.vin[0].scriptSig = (CScript() << chainActive.Height() << 0); |
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txCoinbase.nLockTime = LOCKTIME_THRESHOLD-1; // refers to height
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txCoinbase.vin[0].nSequence = 1; // non-zero sequence
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pblock->vtx[0] = CTransaction(txCoinbase); |
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pblock->nVersion = 2; |
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pblock->hashMerkleRoot = pblock->BuildMerkleTree(); |
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CValidationState state5; |
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BOOST_CHECK(ProcessBlock(state5, NULL, pblock)==false); |
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BOOST_CHECK(!state5.IsValid()); |
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BOOST_CHECK(state5.GetRejectReason()=="bad-txns-nonfinal"); |
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// Do not update parent since block has failed
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ModifiableParams()->setSkipProofOfWorkCheck(false); |
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////////////////////////////////////////////////////////////////////////////////
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// Just to be sure that proof-of-work skipping is working ok, we submit a block
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// without enought proof of work and it must be rejected.
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////////////////////////////////////////////////////////////////////////////////
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CheckSubsidyHalving(pblocktemplate,pblock); |
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SetBlockDefaultAttributesAndHeight(pblock,true,0); |
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pblock->nVersion = 2; |
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CValidationState state6; |
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BOOST_CHECK(ProcessBlock(state6, NULL, pblock)==false); |
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BOOST_CHECK(!state6.IsValid()); |
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BOOST_CHECK(state6.GetRejectReason()=="high-hash"); |
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delete pblocktemplate; |
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LogPrintf("Blockv2test testcase ends\n"); |
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} |
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BOOST_AUTO_TEST_CASE(Blockv2testcase) |
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{ |
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Blockv2test(); |
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} |
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BOOST_AUTO_TEST_SUITE_END() |
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