public void gets_through_rpc() { string result = "0x0123"; _jsonSerializer.Deserialize <JsonRpcSuccessResponse>(Arg.Any <string>()).Returns(new JsonRpcSuccessResponse() { Result = result }); byte[] key = new byte[1]; byte[] elem = _rpcDb[key]; _jsonRpcClient.Received().Post("debug_getFromDb", "Name", key.ToHexString()); _recordDb.Received()[key] = Arg.Is <byte[]>(a => a.SequenceEqual(Bytes.FromHexString(result))); }