private Dictionary <MultiHash, Delta> BuildChainedDeltas(int chainSize) { var chainedDeltas = Enumerable.Range(0, chainSize + 1).ToDictionary( i => _hashProvider.ComputeUtf8MultiHash(i.ToString()), i => { var previousHash = _hashProvider.ComputeUtf8MultiHash((i - 1).ToString()); var delta = DeltaHelper.GetDelta(_hashProvider, previousHash); return(delta); }); _output.WriteLine("chain is:"); _output.WriteLine(string.Join(Environment.NewLine, chainedDeltas.Select((c, i) => $"{i}: current {c.Key} | previous {_hashProvider.Cast(c.Value.PreviousDeltaDfsHash.ToByteArray())}"))); return(chainedDeltas); }