public void CreateNewBlock_WithScript_ValidatesTemplateUsingRuleContext()
{
var newOptions = new PowConsensusOptions()
{
MaxBlockWeight = 1500
};
this.ExecuteWithConsensusOptions(newOptions, () =>
{
var chain = GenerateChainWithHeight(5, this.network, this.key);
this.dateTimeProvider.Setup(d => d.GetAdjustedTimeAsUnixTimestamp())
.Returns(new DateTime(2017, 1, 7, 0, 0, 1, DateTimeKind.Utc).ToUnixTimestamp());
this.consensusLoop.Setup(c => c.Tip)
.Returns(chain.GetBlock(5));
var transaction = CreateTransaction(this.network, this.key, 5, new Money(400 * 1000 * 1000), new Key(), new uint256(124124));
var txFee = new Money(1000);
SetupTxMempool(chain, this.network.Consensus.Options as PowConsensusOptions, txFee, transaction);
var powBlockAssembler = new PowBlockAssembler(this.consensusLoop.Object, this.dateTimeProvider.Object, this.LoggerFactory.Object, this.txMempool.Object, new MempoolSchedulerLock(), this.network);
var blockTemplate = powBlockAssembler.Build(chain.Tip, this.key.ScriptPubKey);
Assert.NotNull(this.callbackRuleContext);
Assert.False(this.callbackRuleContext.CheckMerkleRoot);
Assert.False(this.callbackRuleContext.CheckPow);
Assert.Equal(blockTemplate.Block.GetHash(), this.callbackRuleContext.BlockValidationContext.Block.GetHash());
Assert.Equal(chain.GetBlock(5).HashBlock, this.callbackRuleContext.ConsensusTip.HashBlock);
Assert.Equal(1500, this.callbackRuleContext.Consensus.Option <PowConsensusOptions>().MaxBlockWeight);
this.consensusLoop.Verify();
});
}
public void CreateNewBlock_WithScript_ReturnsBlockTemplate()
{
this.ExecuteWithConsensusOptions(new PowConsensusOptions(), () =>
{
var chain = GenerateChainWithHeight(5, this.network, this.key);
this.dateTimeProvider.Setup(d => d.GetAdjustedTimeAsUnixTimestamp())
.Returns(new DateTime(2017, 1, 7, 0, 0, 1, DateTimeKind.Utc).ToUnixTimestamp());
var transaction = CreateTransaction(this.network, this.key, 5, new Money(400 * 1000 * 1000), new Key(), new uint256(124124));
var txFee = new Money(1000);
SetupTxMempool(chain, this.network.Consensus.Options as PowConsensusOptions, txFee, transaction);
var powBlockAssembler = new PowBlockAssembler(this.consensusLoop.Object, this.dateTimeProvider.Object, this.LoggerFactory.Object, this.txMempool.Object, new MempoolSchedulerLock(), this.network);
var blockTemplate = powBlockAssembler.Build(chain.Tip, this.key.ScriptPubKey);
Assert.Null(blockTemplate.CoinbaseCommitment);
Assert.Equal(new Money(1000), blockTemplate.TotalFee);
Assert.Equal(2, blockTemplate.TxSigOpsCost.Count);
Assert.Equal(-1, blockTemplate.TxSigOpsCost[0]);
Assert.Equal(2, blockTemplate.TxSigOpsCost[1]);
Assert.Equal(2, blockTemplate.VTxFees.Count);
Assert.Equal(new Money(-1000), blockTemplate.VTxFees[0]);
Assert.Equal(new Money(1000), blockTemplate.VTxFees[1]);
Assert.Equal(2, blockTemplate.Block.Transactions.Count);
Assert.Equal(536870912, blockTemplate.Block.Header.Version);
Assert.Equal(2, blockTemplate.Block.Transactions.Count);
var resultingTransaction = blockTemplate.Block.Transactions[0];
Assert.Equal((uint)new DateTime(2017, 1, 7, 0, 0, 1, DateTimeKind.Utc).ToUnixTimestamp(), resultingTransaction.Time);
Assert.NotEmpty(resultingTransaction.Inputs);
Assert.NotEmpty(resultingTransaction.Outputs);
Assert.True(resultingTransaction.IsCoinBase);
Assert.False(resultingTransaction.IsCoinStake);
Assert.Equal(TxIn.CreateCoinbase(6).ScriptSig, resultingTransaction.Inputs[0].ScriptSig);
Assert.Equal(this.powReward + txFee, resultingTransaction.TotalOut);
Assert.Equal(this.key.ScriptPubKey, resultingTransaction.Outputs[0].ScriptPubKey);
Assert.Equal(this.powReward + txFee, resultingTransaction.Outputs[0].Value);
resultingTransaction = blockTemplate.Block.Transactions[1];
Assert.NotEmpty(resultingTransaction.Inputs);
Assert.NotEmpty(resultingTransaction.Outputs);
Assert.False(resultingTransaction.IsCoinBase);
Assert.False(resultingTransaction.IsCoinStake);
Assert.Equal(new Money(400 * 1000 * 1000), resultingTransaction.TotalOut);
Assert.Equal(transaction.Inputs[0].PrevOut.Hash, resultingTransaction.Inputs[0].PrevOut.Hash);
Assert.Equal(transaction.Inputs[0].ScriptSig, transaction.Inputs[0].ScriptSig);
Assert.Equal(transaction.Outputs[0].ScriptPubKey, resultingTransaction.Outputs[0].ScriptPubKey);
Assert.Equal(new Money(400 * 1000 * 1000), resultingTransaction.Outputs[0].Value);
});
}
private static BlockTemplate CreateBlockTemplate(TestChainContext testChainContext, Script scriptPubKey,
TxMempool mempool, MempoolSchedulerLock mempoolLock)
{
PowBlockAssembler blockAssembler = CreatePowBlockAssembler(testChainContext.Consensus,
testChainContext.DateTimeProvider, testChainContext.LoggerFactory as LoggerFactory, mempool, mempoolLock,
testChainContext.Network);
BlockTemplate newBlock = blockAssembler.Build(testChainContext.Chain.Tip, scriptPubKey);
int nHeight = testChainContext.Chain.Tip.Height + 1; // Height first in coinbase required for block.version=2
Transaction txCoinbase = newBlock.Block.Transactions[0];
txCoinbase.Inputs[0] = TxIn.CreateCoinbase(nHeight);
return(newBlock);
}
/// <summary>
/// Creates the test chain with some default blocks and txs.
/// </summary>
/// <param name="network">Network to create the chain on.</param>
/// <param name="scriptPubKey">Public key to create blocks/txs with.</param>
/// <returns>Context object representing the test chain.</returns>
public static async Task <ITestChainContext> CreateAsync(Network network, Script scriptPubKey, string dataDir)
{
NodeSettings nodeSettings = new NodeSettings(network, args: new string[] { $"-datadir={dataDir}" });
var loggerFactory = nodeSettings.LoggerFactory;
IDateTimeProvider dateTimeProvider = DateTimeProvider.Default;
network.Consensus.Options = new PowConsensusOptions();
ConsensusSettings consensusSettings = new ConsensusSettings().Load(nodeSettings);
PowConsensusValidator consensusValidator = new PowConsensusValidator(network, new Checkpoints(), dateTimeProvider, loggerFactory);
ConcurrentChain chain = new ConcurrentChain(network);
CachedCoinView cachedCoinView = new CachedCoinView(new InMemoryCoinView(chain.Tip.HashBlock), DateTimeProvider.Default, loggerFactory);
NetworkPeerFactory networkPeerFactory = new NetworkPeerFactory(network, dateTimeProvider, loggerFactory, new PayloadProvider().DiscoverPayloads(), new SelfEndpointTracker());
var peerAddressManager = new PeerAddressManager(DateTimeProvider.Default, nodeSettings.DataFolder, loggerFactory, new SelfEndpointTracker());
var peerDiscovery = new PeerDiscovery(new AsyncLoopFactory(loggerFactory), loggerFactory, Network.Main, networkPeerFactory, new NodeLifetime(), nodeSettings, peerAddressManager);
var connectionSettings = new ConnectionManagerSettings();
connectionSettings.Load(nodeSettings);
var connectionManager = new ConnectionManager(dateTimeProvider, loggerFactory, network, networkPeerFactory, nodeSettings, new NodeLifetime(), new NetworkPeerConnectionParameters(), peerAddressManager, new IPeerConnector[] { }, peerDiscovery, connectionSettings);
LookaheadBlockPuller blockPuller = new LookaheadBlockPuller(chain, connectionManager, new LoggerFactory());
PeerBanning peerBanning = new PeerBanning(connectionManager, loggerFactory, dateTimeProvider, peerAddressManager);
NodeDeployments deployments = new NodeDeployments(network, chain);
ConsensusRules consensusRules = new PowConsensusRules(network, loggerFactory, dateTimeProvider, chain, deployments, consensusSettings, new Checkpoints(), new InMemoryCoinView(new uint256()), new Mock <ILookaheadBlockPuller>().Object).Register(new FullNodeBuilderConsensusExtension.PowConsensusRulesRegistration());
ConsensusLoop consensus = new ConsensusLoop(new AsyncLoopFactory(loggerFactory), consensusValidator, new NodeLifetime(), chain, cachedCoinView, blockPuller, deployments, loggerFactory, new ChainState(new InvalidBlockHashStore(dateTimeProvider)), connectionManager, dateTimeProvider, new Signals.Signals(), consensusSettings, nodeSettings, peerBanning, consensusRules);
await consensus.StartAsync();
BlockPolicyEstimator blockPolicyEstimator = new BlockPolicyEstimator(new MempoolSettings(nodeSettings), loggerFactory, nodeSettings);
TxMempool mempool = new TxMempool(dateTimeProvider, blockPolicyEstimator, loggerFactory, nodeSettings);
MempoolSchedulerLock mempoolLock = new MempoolSchedulerLock();
// Simple block creation, nothing special yet:
PowBlockAssembler blockAssembler = CreatePowBlockAssembler(consensus, dateTimeProvider, loggerFactory as LoggerFactory, mempool, mempoolLock, network);
BlockTemplate newBlock = blockAssembler.Build(chain.Tip, scriptPubKey);
chain.SetTip(newBlock.Block.Header);
await consensus.ValidateAndExecuteBlockAsync(new RuleContext(new BlockValidationContext {
Block = newBlock.Block
}, network.Consensus, consensus.Tip) { CheckPow = false, CheckMerkleRoot = false });
List <BlockInfo> blockinfo = CreateBlockInfoList();
// We can't make transactions until we have inputs
// Therefore, load 100 blocks :)
int baseheight = 0;
List <Block> blocks = new List <Block>();
List <Transaction> srcTxs = new List <Transaction>();
for (int i = 0; i < blockinfo.Count; ++i)
{
Block currentBlock = newBlock.Block.Clone(); // pointer for convenience
currentBlock.Header.HashPrevBlock = chain.Tip.HashBlock;
currentBlock.Header.Version = 1;
currentBlock.Header.Time = Utils.DateTimeToUnixTime(chain.Tip.GetMedianTimePast()) + 1;
Transaction txCoinbase = currentBlock.Transactions[0].Clone();
txCoinbase.Inputs.Clear();
txCoinbase.Version = 1;
txCoinbase.AddInput(new TxIn(new Script(new[] { Op.GetPushOp(blockinfo[i].extraNonce), Op.GetPushOp(chain.Height) })));
// Ignore the (optional) segwit commitment added by CreateNewBlock (as the hardcoded nonces don't account for this)
txCoinbase.AddOutput(new TxOut(Money.Zero, new Script()));
currentBlock.Transactions[0] = txCoinbase;
if (srcTxs.Count == 0)
{
baseheight = chain.Height;
}
if (srcTxs.Count < 4)
{
srcTxs.Add(currentBlock.Transactions[0]);
}
currentBlock.UpdateMerkleRoot();
currentBlock.Header.Nonce = blockinfo[i].nonce;
chain.SetTip(currentBlock.Header);
await consensus.ValidateAndExecuteBlockAsync(new RuleContext(new BlockValidationContext {
Block = currentBlock
}, network.Consensus, consensus.Tip) { CheckPow = false, CheckMerkleRoot = false });
blocks.Add(currentBlock);
}
// Just to make sure we can still make simple blocks
blockAssembler = CreatePowBlockAssembler(consensus, dateTimeProvider, loggerFactory as LoggerFactory, mempool, mempoolLock, network);
newBlock = blockAssembler.Build(chain.Tip, scriptPubKey);
MempoolValidator mempoolValidator = new MempoolValidator(mempool, mempoolLock, consensusValidator, dateTimeProvider, new MempoolSettings(nodeSettings), chain, cachedCoinView, loggerFactory, nodeSettings);
return(new TestChainContext {
MempoolValidator = mempoolValidator, SrcTxs = srcTxs
});
}
