a25fd6be13
UNITTEST inherites from MAIN but allows synamically changing its parameters using the ModifiableParams() interface
233 lines
9.0 KiB
C++
233 lines
9.0 KiB
C++
// 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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// Tests the majority rule which states that after 1000 v2 blocks no v1 block can go
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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 difValue)
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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+difValue) << 0);
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else
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txCoinbase.vin[0].scriptSig = (CScript() << difValue << 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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// 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 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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// First create a block v1, check that it is accepted. The block has an invalid height
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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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// Now create exactly 1000 blocks v2
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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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// 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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// Unluckily, 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.
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// We verify instead that the chain height has not been incremented.
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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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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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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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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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// Now we try to add a block v2, with an invalid height and it should be rejected. We use 2000 because is not in the range [1000..1750].
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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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// Now we add a block with height, must be ok.
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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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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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pblock->hashPrevBlock = pblock->GetHash(); // update parent
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}
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LogPrintf("Blockv2test block v1 rejected\n");
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// Now we add 200 additional blocks, until we get 950 (the threshold were v1 blocks are not accepted anymore)
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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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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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// Some other missing tests, added here as bonus...
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// Block time too old check
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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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// Adding a non-final coinbase, must modify coinbase
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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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delete pblocktemplate;
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ModifiableParams()->setSkipProofOfWorkCheck(false);
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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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