public void DummyFilterMatchesToFalse()
{
var rnd = new Random(123456);
var blockHash = new byte[32];
rnd.NextBytes(blockHash);
var filter = IndexBuilderService.CreateDummyEmptyFilter(new uint256(blockHash));
var scriptPubKeys = Enumerable.Range(0, 1000).Select(x =>
{
var buffer = new byte[20];
rnd.NextBytes(buffer);
return(buffer);
});
var key = blockHash[0..16];
public static FilterModel GetStartingFilter(Network network)
{
var startingHeader = SmartHeader.GetStartingHeader(network);
if (network == Network.Main)
{
return(FilterModel.FromLine($"{startingHeader.Height}:{startingHeader.BlockHash}:02832810ec08a0:{startingHeader.PrevHash}:{startingHeader.EpochBlockTime}"));
}
else if (network == Network.TestNet)
{
return(FilterModel.FromLine($"{startingHeader.Height}:{startingHeader.BlockHash}:00000000000f0d5edcaeba823db17f366be49a80d91d15b77747c2e017b8c20a:{startingHeader.PrevHash}:{startingHeader.EpochBlockTime}"));
}
else if (network == Network.RegTest)
{
GolombRiceFilter filter = IndexBuilderService.CreateDummyEmptyFilter(startingHeader.BlockHash);
return(FilterModel.FromLine($"{startingHeader.Height}:{startingHeader.BlockHash}:{filter}:{startingHeader.PrevHash}:{startingHeader.EpochBlockTime}"));
}
else
{
throw new NotSupportedNetworkException(network);
}
}
public async Task FilterDownloaderTestAsync()
{
(_, IRPCClient rpc, _, _, _, BitcoinStore bitcoinStore, _) = await Common.InitializeTestEnvironmentAsync(RegTestFixture, 1);
var httpClientFactory = new HttpClientFactory(torEndPoint: null, backendUriGetter: () => new Uri(RegTestFixture.BackendEndPoint));
var synchronizer = new WasabiSynchronizer(rpc.Network, bitcoinStore, httpClientFactory);
try
{
synchronizer.Start(requestInterval: TimeSpan.FromSeconds(1), TimeSpan.FromSeconds(5), 1000);
var blockCount = await rpc.GetBlockCountAsync() + 1; // Plus one because of the zeroth.
// Test initial synchronization.
var times = 0;
int filterCount;
while ((filterCount = bitcoinStore.SmartHeaderChain.HashCount) < blockCount)
{
if (times > 500) // 30 sec
{
throw new TimeoutException($"{nameof(WasabiSynchronizer)} test timed out. Needed filters: {blockCount}, got only: {filterCount}.");
}
await Task.Delay(100);
times++;
}
Assert.Equal(blockCount, bitcoinStore.SmartHeaderChain.HashCount);
// Test later synchronization.
await RegTestFixture.BackendRegTestNode.GenerateAsync(10);
times = 0;
while ((filterCount = bitcoinStore.SmartHeaderChain.HashCount) < blockCount + 10)
{
if (times > 500) // 30 sec
{
throw new TimeoutException($"{nameof(WasabiSynchronizer)} test timed out. Needed filters: {blockCount + 10}, got only: {filterCount}.");
}
await Task.Delay(100);
times++;
}
// Test correct number of filters is received.
Assert.Equal(blockCount + 10, bitcoinStore.SmartHeaderChain.HashCount);
// Test filter block hashes are correct.
var filterList = new List <FilterModel>();
await bitcoinStore.IndexStore.ForeachFiltersAsync(async x =>
{
filterList.Add(x);
await Task.CompletedTask;
},
new Height(0));
FilterModel[] filters = filterList.ToArray();
for (int i = 0; i < 101; i++)
{
var expectedHash = await rpc.GetBlockHashAsync(i);
var filter = filters[i];
Assert.Equal(i, (int)filter.Header.Height);
Assert.Equal(expectedHash, filter.Header.BlockHash);
Assert.Equal(IndexBuilderService.CreateDummyEmptyFilter(expectedHash).ToString(), filter.Filter.ToString());
}
}
finally
{
if (synchronizer is { })
public async Task ReorgTestAsync()
{
(string password, IRPCClient rpc, Network network, _, _, BitcoinStore bitcoinStore, Backend.Global global) = await Common.InitializeTestEnvironmentAsync(RegTestFixture, 1);
var keyManager = KeyManager.CreateNew(out _, password, network);
// Mine some coins, make a few bech32 transactions then make it confirm.
await rpc.GenerateAsync(1);
var key = keyManager.GenerateNewKey(SmartLabel.Empty, KeyState.Clean, isInternal: false);
var tx2 = await rpc.SendToAddressAsync(key.GetP2wpkhAddress(network), Money.Coins(0.1m));
key = keyManager.GenerateNewKey(SmartLabel.Empty, KeyState.Clean, isInternal: false);
var tx3 = await rpc.SendToAddressAsync(key.GetP2wpkhAddress(network), Money.Coins(0.1m));
var tx4 = await rpc.SendToAddressAsync(key.GetP2pkhAddress(network), Money.Coins(0.1m));
var tx5 = await rpc.SendToAddressAsync(key.GetP2shOverP2wpkhAddress(network), Money.Coins(0.1m));
var tx1 = await rpc.SendToAddressAsync(key.GetP2wpkhAddress(network), Money.Coins(0.1m), replaceable : true);
await rpc.GenerateAsync(2); // Generate two, so we can test for two reorg
var node = RegTestFixture.BackendRegTestNode;
using HttpClientFactory httpClientFactory = new(torEndPoint : null, backendUriGetter : () => new Uri(RegTestFixture.BackendEndPoint));
WasabiSynchronizer synchronizer = new(bitcoinStore, httpClientFactory);
try
{
synchronizer.Start(requestInterval: TimeSpan.FromSeconds(3), 1000);
var reorgAwaiter = new EventsAwaiter <FilterModel>(
h => bitcoinStore.IndexStore.Reorged += h,
h => bitcoinStore.IndexStore.Reorged -= h,
2);
// Test initial synchronization.
await WaitForIndexesToSyncAsync(global, TimeSpan.FromSeconds(90), bitcoinStore);
var tip = await rpc.GetBestBlockHashAsync();
Assert.Equal(tip, bitcoinStore.SmartHeaderChain.TipHash);
var tipBlock = await rpc.GetBlockHeaderAsync(tip);
Assert.Equal(tipBlock.HashPrevBlock, bitcoinStore.SmartHeaderChain.GetChain().Select(x => x.header.BlockHash).ToArray()[bitcoinStore.SmartHeaderChain.HashCount - 2]);
// Test synchronization after fork.
await rpc.InvalidateBlockAsync(tip); // Reorg 1
tip = await rpc.GetBestBlockHashAsync();
await rpc.InvalidateBlockAsync(tip); // Reorg 2
var tx1bumpRes = await rpc.BumpFeeAsync(tx1); // RBF it
await rpc.GenerateAsync(5);
await WaitForIndexesToSyncAsync(global, TimeSpan.FromSeconds(90), bitcoinStore);
var hashes = bitcoinStore.SmartHeaderChain.GetChain().Select(x => x.header.BlockHash).ToArray();
Assert.DoesNotContain(tip, hashes);
Assert.DoesNotContain(tipBlock.HashPrevBlock, hashes);
tip = await rpc.GetBestBlockHashAsync();
Assert.Equal(tip, bitcoinStore.SmartHeaderChain.TipHash);
var filterList = new List <FilterModel>();
await bitcoinStore.IndexStore.ForeachFiltersAsync(async x =>
{
filterList.Add(x);
await Task.CompletedTask;
},
new Height(0));
var filterTip = filterList.Last();
Assert.Equal(tip, filterTip.Header.BlockHash);
// Test filter block hashes are correct after fork.
var blockCountIncludingGenesis = await rpc.GetBlockCountAsync() + 1;
filterList.Clear();
await bitcoinStore.IndexStore.ForeachFiltersAsync(async x =>
{
filterList.Add(x);
await Task.CompletedTask;
},
new Height(0));
FilterModel[] filters = filterList.ToArray();
for (int i = 0; i < blockCountIncludingGenesis; i++)
{
var expectedHash = await rpc.GetBlockHashAsync(i);
var filter = filters[i];
Assert.Equal(i, (int)filter.Header.Height);
Assert.Equal(expectedHash, filter.Header.BlockHash);
if (i < 101) // Later other tests may fill the filter.
{
Assert.Equal(IndexBuilderService.CreateDummyEmptyFilter(expectedHash).ToString(), filter.Filter.ToString());
}
}
// Test the serialization, too.
tip = await rpc.GetBestBlockHashAsync();
var blockHash = tip;
for (var i = 0; i < hashes.Length; i++)
{
var block = await rpc.GetBlockHeaderAsync(blockHash);
Assert.Equal(blockHash, hashes[hashes.Length - i - 1]);
blockHash = block.HashPrevBlock;
}
// Assert reorg happened exactly as many times as we reorged.
await reorgAwaiter.WaitAsync(TimeSpan.FromSeconds(10));
}
finally
{
await synchronizer.StopAsync();
}
}
