/// <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 = new ExtendedLoggerFactory();
IDateTimeProvider dateTimeProvider = DateTimeProvider.Default;
network.Consensus.Options = new PowConsensusOptions();
ConsensusSettings consensusSettings = new ConsensusSettings(nodeSettings, loggerFactory);
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);
var peerAddressManager = new PeerAddressManager(DateTimeProvider.Default, nodeSettings.DataFolder, loggerFactory);
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, nodeSettings);
NodeDeployments deployments = new NodeDeployments(network, chain);
ConsensusRules consensusRules = new PowConsensusRules(network, loggerFactory, dateTimeProvider, chain, deployments, consensusSettings, new Checkpoints()).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(network, consensus, chain, mempoolLock, mempool, dateTimeProvider, loggerFactory);
BlockTemplate newBlock = blockAssembler.CreateNewBlock(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(network, consensus, chain, mempoolLock, mempool, dateTimeProvider, loggerFactory);
newBlock = blockAssembler.CreateNewBlock(scriptPubKey);
MempoolValidator mempoolValidator = new MempoolValidator(mempool, mempoolLock, consensusValidator, dateTimeProvider, new MempoolSettings(nodeSettings), chain, cachedCoinView, loggerFactory, nodeSettings);
return(new TestChainContext {
MempoolValidator = mempoolValidator, SrcTxs = srcTxs
});
}
/// <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 ITestChainContext Create(Network network, Script scriptPubKey, string dataDir)
{
NodeSettings nodeSettings = NodeSettings.FromArguments(new string[] { $"-datadir={dataDir}" }, network.Name, network);
if (dataDir != null)
{
nodeSettings.DataDir = dataDir;
}
LoggerFactory loggerFactory = new LoggerFactory();
IDateTimeProvider dateTimeProvider = DateTimeProvider.Default;
network.Consensus.Options = new PowConsensusOptions();
PowConsensusValidator consensusValidator = new PowConsensusValidator(network, new Checkpoints(network), loggerFactory);
ConcurrentChain chain = new ConcurrentChain(network);
CachedCoinView cachedCoinView = new CachedCoinView(new InMemoryCoinView(chain.Tip.HashBlock), loggerFactory);
ConnectionManager connectionManager = new ConnectionManager(network, new NodeConnectionParameters(), nodeSettings, loggerFactory, new NodeLifetime());
LookaheadBlockPuller blockPuller = new LookaheadBlockPuller(chain, connectionManager, new LoggerFactory());
ConsensusLoop consensus = new ConsensusLoop(consensusValidator, chain, cachedCoinView, blockPuller, new NodeDeployments(network), loggerFactory);
consensus.Initialize();
BlockPolicyEstimator blockPolicyEstimator = new BlockPolicyEstimator(new MempoolSettings(nodeSettings), loggerFactory, nodeSettings);
TxMempool mempool = new TxMempool(dateTimeProvider, blockPolicyEstimator, loggerFactory, nodeSettings);
MempoolAsyncLock mempoolLock = new MempoolAsyncLock();
// Simple block creation, nothing special yet:
PowBlockAssembler blockAssembler = CreatePowBlockAssembler(network, consensus, chain, mempoolLock, mempool, dateTimeProvider, loggerFactory);
BlockTemplate newBlock = blockAssembler.CreateNewBlock(scriptPubKey);
chain.SetTip(newBlock.Block.Header);
consensus.AcceptBlock(new ContextInformation(new BlockResult {
Block = newBlock.Block
}, network.Consensus)
{
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);
consensus.AcceptBlock(new ContextInformation(new BlockResult {
Block = currentBlock
}, network.Consensus)
{
CheckPow = false, CheckMerkleRoot = false
});
blocks.Add(currentBlock);
}
// Just to make sure we can still make simple blocks
blockAssembler = CreatePowBlockAssembler(network, consensus, chain, mempoolLock, mempool, dateTimeProvider, loggerFactory);
newBlock = blockAssembler.CreateNewBlock(scriptPubKey);
MempoolValidator mempoolValidator = new MempoolValidator(mempool, mempoolLock, consensusValidator, dateTimeProvider, new MempoolSettings(nodeSettings), chain, cachedCoinView, loggerFactory, nodeSettings);
return(new TestChainContext {
MempoolValidator = mempoolValidator, SrcTxs = srcTxs
});
}
private PowMining CreateProofOfWorkMiner(PowBlockAssembler blockBuilder)
{
return(new PowMining(this.asyncLoopFactory.Object, blockBuilder, this.consensusLoop.Object, this.chain, DateTimeProvider.Default, this.mempool.Object, this.mempoolLock, this.network, this.nodeLifetime.Object, this.LoggerFactory.Object));
}