public void CacheDeltasBetween_Should_Stop_When_One_Of_Deltas_Is_Missing()
{
var chainSize = 5;
var chain = BuildChainedDeltas(chainSize);
SetCacheExpectations(chain);
var hashes = chain.Keys.ToArray();
var brokenChainIndex = 2;
_deltaCache.TryGetOrAddConfirmedDelta(hashes[brokenChainIndex], out Arg.Any <Delta>())
.Returns(false);
_output.WriteLine($"chain is broken for {hashes[brokenChainIndex]}, it cannot be found on Dfs.");
var cachedHashes = _synchroniser.CacheDeltasBetween(hashes.First(),
hashes.Last(), _cancellationToken).ToList();
OutputCachedHashes(cachedHashes);
cachedHashes.Count.Should().Be(chainSize - brokenChainIndex);
hashes.TakeLast(chainSize - brokenChainIndex + 1).ToList().ForEach(h =>
{
_deltaCache.Received(1).TryGetOrAddConfirmedDelta(h,
out Arg.Any <Delta>(), _cancellationToken);
});
}
public void BuildDeltaEmptyPoolContent()
{
var transactionRetriever = Substitute.For <IDeltaTransactionRetriever>();
transactionRetriever.GetMempoolTransactionsByPriority()
.Returns(new List <TransactionBroadcast>());
var deltaBuilder = new DeltaBuilder(transactionRetriever, _randomFactory, _hashProvider, _peerSettings, _cache, _dateTimeProvider, _logger);
var candidate = deltaBuilder.BuildCandidateDelta(_previousDeltaHash);
ValidateDeltaCandidate(candidate, _zeroCoinbaseEntry.ToByteArray());
_cache.Received(1).AddLocalDelta(Arg.Is(candidate), Arg.Any <Delta>());
}
public async Task Sync_Can_Download_Deltas()
{
_syncTestHeight = 10;
var sync = new Synchroniser(new SyncState(), _peerSyncManager, _deltaCache, _deltaHeightWatcher, _deltaHashProvider, _deltaDfsReader, _deltaIndexService,
_mapperProvider, _userOutput, Substitute.For <ILogger>(), _syncTestHeight);
sync.SyncCompleted.Subscribe(x => { _manualResetEventSlim.Set(); });
await sync.StartAsync(CancellationToken.None);
_manualResetEventSlim.Wait();
_deltaCache.Received(_syncTestHeight).TryGetOrAddConfirmedDelta(Arg.Any <Cid>(), out Arg.Any <Delta>());
}
public async Task GetDeltaRequestObserver_Should_Send_Response_When_Delta_Found_In_Cache()
{
var cid = _hashProvider.ComputeUtf8MultiHash("abcd").CreateCid();
var delta = CreateAndExpectDeltaFromCache(cid);
var observable = CreateStreamWithDeltaRequest(cid);
_observer.StartObserving(observable);
_testScheduler.Start();
_deltaCache.Received(1).TryGetOrAddConfirmedDelta(Arg.Is <Cid>(
s => s.Equals(cid)), out Arg.Any <Delta>());
await _fakeContext.Channel.ReceivedWithAnyArgs(1)
.WriteAndFlushAsync(Arg.Is <IMessageDto <ProtocolMessage> >(pm =>
pm.Content.FromProtocolMessage <GetDeltaResponse>().Delta.PreviousDeltaDfsHash ==
delta.PreviousDeltaDfsHash));
}