public async Task Can_Process_DeltaHeightRequest_Correctly()
{
var fakeContext = Substitute.For <IChannelHandlerContext>();
var deltaHistoryRequestMessage = new DeltaHistoryRequest();
var channeledAny = new ObserverDto(fakeContext,
deltaHistoryRequestMessage.ToProtocolMessage(PeerIdHelper.GetPeerId(),
CorrelationId.GenerateCorrelationId()
)
);
var observableStream = new[] { channeledAny }.ToObservable(_testScheduler);
_deltaHistoryRequestObserver.StartObserving(observableStream);
_testScheduler.Start();
var response = new DeltaHistoryResponse();
var hp = new HashProvider(HashingAlgorithm.GetAlgorithmMetadata("keccak-256"));
var lastDeltaHash = hp.ComputeMultiHash(ByteUtil.GenerateRandomByteArray(32));
for (uint x = 0; x < 10; x++)
{
var delta = new Delta
{
PreviousDeltaDfsHash = lastDeltaHash.Digest.ToByteString()
};
var index = new DeltaIndex
{
Height = 10,
Cid = delta.ToByteString()
};
response.DeltaIndex.Add(index);
lastDeltaHash = hp.ComputeMultiHash(ByteUtil.GenerateRandomByteArray(32));
}
await fakeContext.Channel.ReceivedWithAnyArgs(1)
.WriteAndFlushAsync(response.ToProtocolMessage(PeerIdHelper.GetPeerId(), CorrelationId.GenerateCorrelationId())).ConfigureAwait(false);
_subbedLogger.ReceivedWithAnyArgs(1);
}
private void DeltaHistoryOnNext(DeltaHistoryResponse deltaHistoryResponse)
{
//First block is always previous block
if (deltaHistoryResponse.DeltaIndex.Count <= 1)
{
return;
}
var deltaHistoryRanker = _deltaHistoryRanker;
if (deltaHistoryRanker == null)
{
return;
}
var startHeight = (int)deltaHistoryResponse.DeltaIndex.FirstOrDefault()?.Height;
if (startHeight == deltaHistoryRanker.Height)
{
deltaHistoryRanker.Add(deltaHistoryResponse.DeltaIndex);
}
}
private DeltaHistoryResponse GenerateSampleData(int height, int range, int maxHeight = -1)
{
var deltaHeightResponse = new DeltaHistoryResponse();
var deltaIndexList = new List <DeltaIndex>();
var heightSum = height + range;
if (heightSum > maxHeight)
{
heightSum = maxHeight;
}
for (var i = height; i <= heightSum; i++)
{
deltaIndexList.Add(new DeltaIndex
{
Cid = ByteString.CopyFrom(_hashProvider.ComputeUtf8MultiHash(i.ToString()).ToCid().ToArray()),
Height = (uint)i
});
}
deltaHeightResponse.DeltaIndex.Add(deltaIndexList);
return(deltaHeightResponse);
}