public void CanGetTransactionsFromMemPool()
{
using (var builder = NodeBuilderEx.Create())
{
var node = builder.CreateNode();
node.ConfigParameters.Add("whitelist", "127.0.0.1");
node.Start();
var rpc = node.CreateRPCClient();
rpc.Generate(101);
rpc.SendCommand("sendtoaddress", new Key().PubKey.GetAddress(Network.RegTest).ToString(), "1.0");
var client = node.CreateNodeClient();
client.VersionHandshake();
var transactions = client.GetMempoolTransactions();
Assert.True(transactions.Length == 1);
}
}
public void CanDownloadHeaders()
{
using (var builder = NodeBuilderEx.Create())
{
var node = builder.CreateNode(true).CreateNodeClient();
builder.Nodes[0].Generate(50);
node.VersionHandshake();
var begin = node.Counter.Snapshot();
var result = node.GetChain();
var end = node.Counter.Snapshot();
var diff = end - begin;
Assert.True(node.PeerVersion.StartHeight <= result.Height);
var subChain = node.GetChain(result.GetBlock(10).HashBlock);
Assert.Equal(10, subChain.Height);
}
}
public void CanDownloadBlock()
{
using (var builder = NodeBuilderEx.Create())
{
var node = builder.CreateNode(true).CreateNodeClient();
node.VersionHandshake();
node.SendMessageAsync(new GetDataPayload(new InventoryVector
{
Hash = Network.RegTest.GenesisHash,
Type = InventoryType.MSG_BLOCK
}));
var block = node.ReceiveMessage <BlockPayload>();
Assert.True(block.Object.CheckMerkleRoot());
}
}
public void CanSyncWithPoW()
{
using (var builder = NodeBuilderEx.Create())
{
var node = builder.CreateNode();
builder.StartAll();
node.Generate(100);
var nodeClient = node.CreateNodeClient();
nodeClient.VersionHandshake();
var chain = new ConcurrentChain(builder.Network);
nodeClient.SynchronizeChain(chain, new SynchronizeChainOptions {
SkipPoWCheck = false
});
Assert.Equal(100, chain.Height);
}
}
public void CanDownloadBlocks()
{
using (var builder = NodeBuilderEx.Create())
{
var node = builder.CreateNode(true).CreateNodeClient();
builder.Nodes[0].Generate(50);
var chain = node.GetChain();
chain.SetTip(chain.GetBlock(9));
var blocks = node.GetBlocks(chain.ToEnumerable(true).Select(c => c.HashBlock)).ToList();
foreach (var block in blocks)
{
Assert.True(block.CheckMerkleRoot());
}
Assert.Equal(10, blocks.Count);
}
}
public void CanGetChainsConcurrenty()
{
using (var builder = NodeBuilderEx.Create())
{
var generating = true;
var node = builder.CreateNode(true);
var rpc = node.CreateRPCClient();
Task.Run(() =>
{
rpc.Generate(600);
generating = false;
});
var nodeClient = node.CreateNodeClient();
nodeClient._pollHeaderDelay = TimeSpan.FromSeconds(2);
nodeClient.VersionHandshake();
var rand = new Random();
Thread.Sleep(1000);
var chains =
Enumerable.Range(0, 5)
.Select(_ => Task.Factory.StartNew(() =>
{
Thread.Sleep(rand.Next(0, 1000));
return(nodeClient.GetChain());
}))
.Select(t => t.Result)
.ToArray();
while (generating)
{
SyncAll(nodeClient, rand, chains);
}
SyncAll(nodeClient, rand, chains);
foreach (var c in chains)
{
Assert.Equal(600, c.Height);
}
var chainNoHeader = nodeClient.GetChain(new SynchronizeChainOptions
{
SkipPoWCheck = true, StripHeaders = true
});
Assert.False(chainNoHeader.Tip.HasHeader);
}
}
public void CanGetBlocksWithProtocol()
{
using (var builder = NodeBuilderEx.Create())
{
var node = builder.CreateNode(true);
var rpc = node.CreateRPCClient();
rpc.Generate(50);
var client = node.CreateNodeClient();
var chain = client.GetChain();
var blocks = client.GetBlocks(chain.GetBlock(20).HashBlock).ToArray();
Assert.Equal(20, blocks.Length);
Assert.Equal(chain.GetBlock(20).HashBlock, blocks.Last().Header.GetHash());
blocks = client.GetBlocksFromFork(chain.GetBlock(45)).ToArray();
Assert.Equal(5, blocks.Length);
Assert.Equal(chain.GetBlock(50).HashBlock, blocks.Last().Header.GetHash());
Assert.Equal(chain.GetBlock(46).HashBlock, blocks.First().Header.GetHash());
}
}
public void SynchronizeChainSurviveReorg()
{
using (var builder = NodeBuilderEx.Create())
{
var chain = new ConcurrentChain(Network.RegTest);
var node1 = builder.CreateNode(true);
node1.Generate(10);
node1.CreateNodeClient().SynchronizeChain(chain);
Assert.Equal(10, chain.Height);
var node2 = builder.CreateNode(true);
node2.Generate(12);
var node2c = node2.CreateNodeClient();
node2c._pollHeaderDelay = TimeSpan.FromSeconds(2);
node2c.SynchronizeChain(chain);
Assert.Equal(12, chain.Height);
}
}
public void CanGetMemPool()
{
using (var builder = NodeBuilderEx.Create())
{
var node = builder.CreateNode();
var rpc = node.CreateRPCClient();
node.ConfigParameters.Add("whitelist", "127.0.0.1");
node.Start();
rpc.Generate(102);
for (var i = 0; i < 2; i++)
{
node.CreateRPCClient().SendCommand("sendtoaddress",
new Key().PubKey.GetAddress(Network.RegTest).ToString(), "1.0");
}
var client = node.CreateNodeClient();
var txIds = client.GetMempool();
Assert.True(txIds.Length == 2);
}
}
public void CanCancelConnection()
{
using (var builder = NodeBuilderEx.Create())
{
var node = builder.CreateNode(true);
var cts = new CancellationTokenSource();
cts.Cancel();
try
{
var client = Node.Connect(Network.RegTest, "127.0.0.1:" + node.ProtocolPort,
new NodeConnectionParameters
{
ConnectCancellation = cts.Token
});
Assert.False(true, "Should have thrown");
}
catch (OperationCanceledException)
{
}
}
}
public void CanMaintainChainWithChainBehavior()
{
using (var builder = NodeBuilderEx.Create())
{
var node = builder.CreateNode(true).CreateNodeClient();
builder.Nodes[0].Generate(600);
var rpc = builder.Nodes[0].CreateRPCClient();
var chain = node.GetChain(rpc.GetBlockHash(500));
Assert.True(chain.Height == 500);
using (var tester = new NodeServerTester())
{
var n1 = tester.Node1;
n1.Behaviors.Add(new ChainBehavior(chain));
n1.VersionHandshake();
Assert.True(n1.MyVersion.StartHeight == 500);
var n2 = tester.Node2;
Assert.True(n2.MyVersion.StartHeight == 0);
Assert.True(n2.PeerVersion.StartHeight == 500);
Assert.True(n1.State == NodeState.HandShaked);
Assert.True(n2.State == NodeState.HandShaked);
var behavior = new ChainBehavior(new ConcurrentChain(Network.RegTest));
n2.Behaviors.Add(behavior);
TestUtils.Eventually(() => behavior.Chain.Height == 500);
var chain2 = n2.GetChain(rpc.GetBlockHash(500));
Assert.True(chain2.Height == 500);
var chain1 = n1.GetChain(rpc.GetBlockHash(500));
Assert.True(chain1.Height == 500);
chain1 = n1.GetChain(rpc.GetBlockHash(499));
Assert.True(chain1.Height == 499);
//Should not broadcast above HighestValidatorPoW
n1.Behaviors.Find <ChainBehavior>().SharedState.HighestValidatedPoW = chain1.GetBlock(300);
chain1 = n2.GetChain(rpc.GetBlockHash(499));
Assert.True(chain1.Height == 300);
}
}
}
public void CanDownloadLastBlocks()
{
using (var builder = NodeBuilderEx.Create())
{
var node = builder.CreateNode(true).CreateNodeClient();
builder.Nodes[0].Generate(150);
var chain = node.GetChain();
Assert.True(node.PeerVersion.StartHeight <= chain.Height);
var subChain = chain.ToEnumerable(true).Take(100).Select(s => s.HashBlock).ToArray();
var begin = node.Counter.Snapshot();
var blocks = node.GetBlocks(subChain).Select(_ => 1).ToList();
var end = node.Counter.Snapshot();
var diff = end - begin;
Assert.True(diff.Start == begin.Taken);
Assert.True(diff.Taken == end.Taken);
Assert.True(diff.TotalBytesRead == end.TotalBytesRead - begin.TotalBytesRead);
Assert.True(diff.TotalBytesWritten == end.TotalBytesWritten - begin.TotalBytesWritten);
Assert.True(blocks.Count == 100);
}
}
public void CanGetMerkleRoot()
{
using (var builder = NodeBuilderEx.Create())
{
var node = builder.CreateNode(true);
var rpc = node.CreateRPCClient();
var nodeClient = node.CreateNodeClient();
rpc.Generate(101);
var knownAddresses = new List <TxDestination>();
var batch = rpc.PrepareBatch();
for (var i = 0; i < 20; i++)
{
var address = new Key().PubKey.GetAddress(rpc.Network);
knownAddresses.Add(address.Hash);
#pragma warning disable CS4014
batch.SendCommandAsync("sendtoaddress", address.ToString(), "0.5");
#pragma warning restore CS4014
}
batch.SendBatch();
knownAddresses = knownAddresses.Take(10).ToList();
var blockId = rpc.Generate(1)[0];
var block = rpc.GetBlock(blockId);
Assert.Equal(21, block.Transactions.Count);
var knownTx = block.Transactions[1].GetHash();
nodeClient.VersionHandshake();
using (var list = nodeClient.CreateListener()
.Where(m => m.Message.Payload is MerkleBlockPayload || m.Message.Payload is TxPayload))
{
var filter = new BloomFilter(1, 0.0001, 50, BloomFlags.UPDATE_NONE);
foreach (var a in knownAddresses)
{
filter.Insert(a.ToBytes());
}
nodeClient.SendMessageAsync(new FilterLoadPayload(filter));
nodeClient.SendMessageAsync(
new GetDataPayload(new InventoryVector(InventoryType.MSG_FILTERED_BLOCK, block.GetHash())));
var merkle = list.ReceivePayload <MerkleBlockPayload>();
var tree = merkle.Object.PartialMerkleTree;
Assert.True(tree.Check(block.Header.HashMerkleRoot));
Assert.True(tree.GetMatchedTransactions().Count() >= 10);
Assert.True(tree.GetMatchedTransactions().Contains(knownTx));
var matched = new List <Transaction>();
for (var i = 0; i < tree.GetMatchedTransactions().Count(); i++)
{
matched.Add(list.ReceivePayload <TxPayload>().Object);
}
Assert.True(matched.Count >= 10);
tree = tree.Trim(knownTx);
Assert.True(tree.GetMatchedTransactions().Count() == 1);
Assert.True(tree.GetMatchedTransactions().Contains(knownTx));
Action act = () =>
{
foreach (var match in matched)
{
Assert.True(filter.IsRelevantAndUpdate(match));
}
};
act();
filter = filter.Clone();
act();
var unknownBlock =
uint256.Parse("00000000ad262227291eaf90cafdc56a8f8451e2d7653843122c5bb0bf2dfcdd");
nodeClient.SendMessageAsync(new GetDataPayload(new InventoryVector(InventoryType.MSG_FILTERED_BLOCK,
Network.RegTest.GetGenesis().GetHash())));
merkle = list.ReceivePayload <MerkleBlockPayload>();
tree = merkle.Object.PartialMerkleTree;
Assert.True(tree.Check(merkle.Object.Header.HashMerkleRoot));
Assert.True(!tree.GetMatchedTransactions().Contains(knownTx));
}
}
}