public ColdStakingController(
            ILoggerFactory loggerFactory,
            IWalletManager walletManager,
            IWalletTransactionHandler walletTransactionHandler)
        {
            Guard.NotNull(loggerFactory, nameof(loggerFactory));
            Guard.NotNull(walletManager, nameof(walletManager));
            Guard.NotNull(walletTransactionHandler, nameof(walletTransactionHandler));

            this.ColdStakingManager = walletManager as ColdStakingManager;
            Guard.NotNull(this.ColdStakingManager, nameof(this.ColdStakingManager));

            this.logger = loggerFactory.CreateLogger(this.GetType().FullName);
            this.walletTransactionHandler = walletTransactionHandler;
        }
        public ColdStakingController(
            ILoggerFactory loggerFactory,
            IWalletManager walletManager,
            IWalletTransactionHandler walletTransactionHandler)
        {
            Guard.NotNull(loggerFactory, nameof(loggerFactory));
            Guard.NotNull(walletManager, nameof(walletManager));
            Guard.NotNull(walletTransactionHandler, nameof(walletTransactionHandler));

            this.ColdStakingManager = walletManager as ColdStakingManager;
            Guard.NotNull(this.ColdStakingManager, nameof(this.ColdStakingManager));

            this.logger = loggerFactory.CreateLogger("Impleum.Bitcoin.Fullnode");
            this.walletTransactionHandler = walletTransactionHandler;
        }
        /// <summary>
        /// Initializes each test case.
        /// </summary>
        /// <param name="callingMethod">The test method being executed.</param>
        private void Initialize([System.Runtime.CompilerServices.CallerMemberName] string callingMethod = "")
        {
            DataFolder dataFolder = CreateDataFolder(this, callingMethod);

            this.nodeSettings     = new NodeSettings(this.Network, ProtocolVersion.ALT_PROTOCOL_VERSION);
            this.dateTimeProvider = DateTimeProvider.Default;
            var walletSettings = new WalletSettings(this.nodeSettings);

            this.loggerFactory = this.nodeSettings.LoggerFactory;

            this.coldStakingManager = new ColdStakingManager(this.Network, new ConcurrentChain(this.Network), walletSettings, this.nodeSettings.DataFolder,
                                                             new Mock <IWalletFeePolicy>().Object, new Mock <IAsyncLoopFactory>().Object, new NodeLifetime(), new ScriptAddressReader(),
                                                             this.loggerFactory, DateTimeProvider.Default);

            var walletTransactionHandler = new WalletTransactionHandler(this.loggerFactory, this.coldStakingManager,
                                                                        new Mock <IWalletFeePolicy>().Object, this.Network, new StandardTransactionPolicy(this.Network));

            this.coldStakingController = new ColdStakingController(this.loggerFactory, this.coldStakingManager, walletTransactionHandler);
        }
        public void ProcessTransactionWithValidColdStakingSetupLoadsTransactionsIntoWalletIfMatching()
        {
            DataFolder dataFolder = CreateDataFolder(this);

            Directory.CreateDirectory(dataFolder.WalletPath);

            Wallet.Wallet wallet = this.walletFixture.GenerateBlankWallet("myWallet", "password");
            (ExtKey ExtKey, string ExtPubKey)accountKeys = WalletTestsHelpers.GenerateAccountKeys(wallet, "password", "m/44'/0'/0'");

            (PubKey PubKey, BitcoinPubKeyAddress Address)spendingKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/0");
            (PubKey PubKey, BitcoinPubKeyAddress Address)changeKeys   = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "1/0");

            Wallet.Wallet coldWallet = this.walletFixture.GenerateBlankWallet("myColdWallet", "password");
            (ExtKey ExtKey, string ExtPubKey)accountColdKeys = WalletTestsHelpers.GenerateAccountKeys(coldWallet, "password", $"m/44'/0'/{ColdStakingManager.ColdWalletAccountIndex}'");

            (PubKey PubKey, BitcoinPubKeyAddress Address)destinationColdKeys = WalletTestsHelpers.GenerateAddressKeys(coldWallet, accountColdKeys.ExtPubKey, "0/0");

            Wallet.Wallet hotWallet = this.walletFixture.GenerateBlankWallet("myHotWallet", "password");
            (ExtKey ExtKey, string ExtPubKey)accountHotKeys = WalletTestsHelpers.GenerateAccountKeys(hotWallet, "password", $"m/44'/0'/{ColdStakingManager.HotWalletAccountIndex}'");

            (PubKey PubKey, BitcoinPubKeyAddress Address)destinationHotKeys = WalletTestsHelpers.GenerateAddressKeys(hotWallet, accountHotKeys.ExtPubKey, "0/0");

            var spendingAddress = new HdAddress
            {
                Index        = 0,
                HdPath       = $"m/44'/0'/0'/0/0",
                Address      = spendingKeys.Address.ToString(),
                Pubkey       = spendingKeys.PubKey.ScriptPubKey,
                ScriptPubKey = spendingKeys.Address.ScriptPubKey,
                Transactions = new List <TransactionData>()
            };

            var destinationColdAddress = new HdAddress
            {
                Index        = 0,
                HdPath       = $"m/44'/0'/{ColdStakingManager.ColdWalletAccountIndex}'/0/0",
                Address      = destinationColdKeys.Address.ToString(),
                Pubkey       = destinationColdKeys.PubKey.ScriptPubKey,
                ScriptPubKey = destinationColdKeys.Address.ScriptPubKey,
                Transactions = new List <TransactionData>()
            };

            var destinationHotAddress = new HdAddress
            {
                Index        = 0,
                HdPath       = $"m/44'/0'/{ColdStakingManager.HotWalletAccountIndex}'/0/0",
                Address      = destinationHotKeys.Address.ToString(),
                Pubkey       = destinationHotKeys.PubKey.ScriptPubKey,
                ScriptPubKey = destinationHotKeys.Address.ScriptPubKey,
                Transactions = new List <TransactionData>()
            };

            var changeAddress = new HdAddress
            {
                Index        = 0,
                HdPath       = $"m/44'/0'/0'/1/0",
                Address      = changeKeys.Address.ToString(),
                Pubkey       = changeKeys.PubKey.ScriptPubKey,
                ScriptPubKey = changeKeys.Address.ScriptPubKey,
                Transactions = new List <TransactionData>()
            };

            // Generate a spendable transaction
            (ChainIndexer chain, uint256 blockhash, Block block)chainInfo = WalletTestsHelpers.CreateChainAndCreateFirstBlockWithPaymentToAddress(wallet.Network, spendingAddress);
            TransactionData spendingTransaction = WalletTestsHelpers.CreateTransactionDataFromFirstBlock(chainInfo);

            spendingAddress.Transactions.Add(spendingTransaction);

            wallet.AccountsRoot.ElementAt(0).Accounts.Add(new HdAccount
            {
                Index             = 0,
                Name              = "account 0",
                HdPath            = "m/44'/0'/0'",
                ExtendedPubKey    = accountKeys.ExtPubKey,
                ExternalAddresses = new List <HdAddress> {
                    spendingAddress
                },
                InternalAddresses = new List <HdAddress> {
                    changeAddress
                }
            });

            coldWallet.AccountsRoot.ElementAt(0).Accounts.Add(new HdAccount
            {
                Index             = ColdStakingManager.ColdWalletAccountIndex,
                Name              = ColdStakingManager.ColdWalletAccountName,
                HdPath            = $"m/44'/0'/{ColdStakingManager.ColdWalletAccountIndex}'",
                ExtendedPubKey    = accountColdKeys.ExtPubKey,
                ExternalAddresses = new List <HdAddress> {
                    destinationColdAddress
                },
                InternalAddresses = new List <HdAddress> {
                }
            });

            hotWallet.AccountsRoot.ElementAt(0).Accounts.Add(new HdAccount
            {
                Index             = ColdStakingManager.HotWalletAccountIndex,
                Name              = ColdStakingManager.HotWalletAccountName,
                HdPath            = $"m/44'/0'/{ColdStakingManager.HotWalletAccountIndex}'",
                ExtendedPubKey    = accountHotKeys.ExtPubKey,
                ExternalAddresses = new List <HdAddress> {
                    destinationHotAddress
                },
                InternalAddresses = new List <HdAddress> {
                }
            });

            var walletFeePolicy = new Mock <IWalletFeePolicy>();

            walletFeePolicy.Setup(w => w.GetMinimumFee(258, 50))
            .Returns(new Money(5000));

            var walletSettings = new WalletSettings(new NodeSettings(network: this.Network));

            var coldWalletManager = new ColdStakingManager(this.Network, chainInfo.chain, walletSettings, dataFolder, walletFeePolicy.Object,
                                                           new Mock <IAsyncProvider>().Object, new NodeLifetime(), new ScriptAddressReader(), this.LoggerFactory.Object, DateTimeProvider.Default, new Mock <ISignals>().Object, new Mock <IBroadcasterManager>().Object);

            coldWalletManager.Wallets.Add(wallet);
            coldWalletManager.Wallets.Add(coldWallet);
            coldWalletManager.LoadKeysLookupLock();

            // Create another instance for the hot wallet as it is not allowed to have both wallets on the same instance.
            var hotWalletManager = new ColdStakingManager(this.Network, chainInfo.chain, walletSettings, dataFolder, walletFeePolicy.Object,
                                                          new Mock <IAsyncProvider>().Object, new NodeLifetime(), new ScriptAddressReader(), this.LoggerFactory.Object, DateTimeProvider.Default, new Mock <ISignals>().Object, new Mock <IBroadcasterManager>().Object);

            hotWalletManager.Wallets.Add(hotWallet);
            hotWalletManager.LoadKeysLookupLock();

            // Create a cold staking setup transaction.
            Transaction transaction = this.CreateColdStakingSetupTransaction(wallet, "password", spendingAddress, destinationColdKeys.PubKey, destinationHotKeys.PubKey,
                                                                             changeAddress, new Money(7500), new Money(5000));

            coldWalletManager.ProcessTransaction(transaction);
            hotWalletManager.ProcessTransaction(transaction);

            HdAddress spentAddressResult = wallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).ExternalAddresses.ElementAt(0);

            Assert.Equal(1, spendingAddress.Transactions.Count);
            Assert.Equal(transaction.GetHash(), spentAddressResult.Transactions.ElementAt(0).SpendingDetails.TransactionId);
            Assert.Equal(transaction.Outputs[1].Value, spentAddressResult.Transactions.ElementAt(0).SpendingDetails.Payments.ElementAt(0).Amount);
            Assert.Equal(transaction.Outputs[1].ScriptPubKey, spentAddressResult.Transactions.ElementAt(0).SpendingDetails.Payments.ElementAt(0).DestinationScriptPubKey);

            Assert.Equal(1, wallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).InternalAddresses.ElementAt(0).Transactions.Count);
            TransactionData changeAddressResult = wallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).InternalAddresses.ElementAt(0).Transactions.ElementAt(0);

            Assert.Equal(transaction.GetHash(), changeAddressResult.Id);
            Assert.Equal(transaction.Outputs[0].Value, changeAddressResult.Amount);
            Assert.Equal(transaction.Outputs[0].ScriptPubKey, changeAddressResult.ScriptPubKey);

            // Verify that the transaction has been recorded in the cold wallet.
            Assert.Equal(1, coldWallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).ExternalAddresses.ElementAt(0).Transactions.Count);
            TransactionData destinationColdAddressResult = coldWallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).ExternalAddresses.ElementAt(0).Transactions.ElementAt(0);

            Assert.Equal(transaction.GetHash(), destinationColdAddressResult.Id);
            Assert.Equal(transaction.Outputs[1].Value, destinationColdAddressResult.Amount);
            Assert.Equal(transaction.Outputs[1].ScriptPubKey, destinationColdAddressResult.ScriptPubKey);

            // Verify that the transaction has been recorded in the hot wallet.
            Assert.Equal(1, hotWallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).ExternalAddresses.ElementAt(0).Transactions.Count);
            TransactionData destinationHotAddressResult = hotWallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).ExternalAddresses.ElementAt(0).Transactions.ElementAt(0);

            Assert.Equal(transaction.GetHash(), destinationHotAddressResult.Id);
            Assert.Equal(transaction.Outputs[1].Value, destinationHotAddressResult.Amount);
            Assert.Equal(transaction.Outputs[1].ScriptPubKey, destinationHotAddressResult.ScriptPubKey);

            // Try withdrawing from the cold staking setup.
            Wallet.Wallet withdrawalWallet = this.walletFixture.GenerateBlankWallet("myWithDrawalWallet", "password");
            (ExtKey ExtKey, string ExtPubKey)withdrawalAccountKeys = WalletTestsHelpers.GenerateAccountKeys(wallet, "password", "m/44'/0'/0'");

            (PubKey PubKey, BitcoinPubKeyAddress Address)withdrawalKeys = WalletTestsHelpers.GenerateAddressKeys(withdrawalWallet, withdrawalAccountKeys.ExtPubKey, "0/0");

            // Withdrawing to this address.
            var withdrawalAddress = new HdAddress
            {
                Index        = 0,
                HdPath       = $"m/44'/0'/0'/0/0",
                Address      = withdrawalKeys.Address.ToString(),
                Pubkey       = withdrawalKeys.PubKey.ScriptPubKey,
                ScriptPubKey = withdrawalKeys.Address.ScriptPubKey,
                Transactions = new List <TransactionData>()
            };

            withdrawalWallet.AccountsRoot.ElementAt(0).Accounts.Add(new HdAccount
            {
                Index             = 0,
                Name              = "account 0",
                HdPath            = "m/44'/0'/0'",
                ExtendedPubKey    = accountKeys.ExtPubKey,
                ExternalAddresses = new List <HdAddress> {
                    withdrawalAddress
                },
                InternalAddresses = new List <HdAddress> {
                }
            });

            // Will spend from the cold stake address and send the change back to the same address.
            var         coldStakeAddress      = coldWallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).ExternalAddresses.ElementAt(0);
            Transaction withdrawalTransaction = this.CreateColdStakingWithdrawalTransaction(coldWallet, "password", coldStakeAddress,
                                                                                            withdrawalKeys.PubKey, ColdStakingScriptTemplate.Instance.GenerateScriptPubKey(destinationColdKeys.PubKey.Hash, destinationHotKeys.PubKey.Hash),
                                                                                            new Money(750), new Money(262));

            // Wallet manager for the wallet receiving the funds.
            var receivingWalletManager = new ColdStakingManager(this.Network, chainInfo.chain, walletSettings, dataFolder, walletFeePolicy.Object,
                                                                new Mock <IAsyncProvider>().Object, new NodeLifetime(), new ScriptAddressReader(), this.LoggerFactory.Object, DateTimeProvider.Default, new Mock <ISignals>().Object, new Mock <IBroadcasterManager>().Object);

            receivingWalletManager.Wallets.Add(withdrawalWallet);
            receivingWalletManager.LoadKeysLookupLock();

            // Process the transaction in the cold wallet manager.
            coldWalletManager.ProcessTransaction(withdrawalTransaction);

            // Process the transaction in the hot wallet manager.
            hotWalletManager.ProcessTransaction(withdrawalTransaction);

            // Process the transaction in the receiving wallet manager.
            receivingWalletManager.ProcessTransaction(withdrawalTransaction);

            // Verify that the transaction has been recorded in the withdrawal wallet.
            Assert.Equal(1, withdrawalWallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).ExternalAddresses.ElementAt(0).Transactions.Count);
            TransactionData withdrawalAddressResult = withdrawalWallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).ExternalAddresses.ElementAt(0).Transactions.ElementAt(0);

            Assert.Equal(withdrawalTransaction.GetHash(), withdrawalAddressResult.Id);
            Assert.Equal(withdrawalTransaction.Outputs[1].Value, withdrawalAddressResult.Amount);
            Assert.Equal(withdrawalTransaction.Outputs[1].ScriptPubKey, withdrawalAddressResult.ScriptPubKey);

            // Verify that the transaction has been recorded in the cold wallet.
            Assert.Equal(2, coldWallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).ExternalAddresses.ElementAt(0).Transactions.Count);
            TransactionData coldAddressResult = coldWallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).ExternalAddresses.ElementAt(0).Transactions.ElementAt(1);

            Assert.Equal(withdrawalTransaction.GetHash(), coldAddressResult.Id);
            Assert.Equal(withdrawalTransaction.Outputs[0].Value, coldAddressResult.Amount);
            Assert.Equal(withdrawalTransaction.Outputs[0].ScriptPubKey, coldAddressResult.ScriptPubKey);

            // Verify that the transaction has been recorded in the hot wallet.
            Assert.Equal(2, hotWallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).ExternalAddresses.ElementAt(0).Transactions.Count);
            TransactionData hotAddressResult = hotWallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).ExternalAddresses.ElementAt(0).Transactions.ElementAt(1);

            Assert.Equal(withdrawalTransaction.GetHash(), hotAddressResult.Id);
            Assert.Equal(withdrawalTransaction.Outputs[0].Value, hotAddressResult.Amount);
            Assert.Equal(withdrawalTransaction.Outputs[0].ScriptPubKey, hotAddressResult.ScriptPubKey);

            // Verify the hot amount returned by GetBalances.
            AccountBalance hotBalance = hotWalletManager.GetBalances("myHotWallet", ColdStakingManager.HotWalletAccountName).FirstOrDefault();

            Assert.Equal(hotBalance.AmountUnconfirmed, hotAddressResult.Amount);

            // Verify the cold amount returned by GetBalances.
            AccountBalance coldBalance = coldWalletManager.GetBalances("myColdWallet", ColdStakingManager.ColdWalletAccountName).FirstOrDefault();

            Assert.Equal(coldBalance.AmountUnconfirmed, coldAddressResult.Amount);
        }
Esempio n. 5
0
        public void ProcessTransactionWithValidColdStakingSetupLoadsTransactionsIntoWalletIfMatching()
        {
            DataFolder dataFolder = CreateDataFolder(this);

            Directory.CreateDirectory(dataFolder.WalletPath);

            var chain = new ChainIndexer(this.Network);

            var walletFeePolicy = new Mock <IWalletFeePolicy>();

            walletFeePolicy.Setup(w => w.GetMinimumFee(258, 50))
            .Returns(new Money(5000));

            var walletSettings = new WalletSettings(new NodeSettings(network: this.Network));
            IScriptAddressReader scriptAddressReader = new ColdStakingDestinationReader(new ScriptAddressReader());
            var walletRepository = new SQLiteWalletRepository(this.LoggerFactory.Object, dataFolder, this.Network, DateTimeProvider.Default, scriptAddressReader);

            walletRepository.TestMode = true;
            var walletManager = new ColdStakingManager(this.Network, chain, walletSettings, dataFolder, walletFeePolicy.Object,
                                                       new Mock <IAsyncProvider>().Object, new NodeLifetime(), new ScriptAddressReader(), this.LoggerFactory.Object, DateTimeProvider.Default,
                                                       walletRepository, new Mock <IBroadcasterManager>().Object);

            walletManager.Start();

            (Wallet.Wallet wallet, ExtKey walletExtKey)                     = this.walletFixture.GenerateBlankWallet("myWallet", "password", walletRepository);
            (Wallet.Wallet coldWallet, ExtKey coldWalletExtKey)             = this.walletFixture.GenerateBlankWallet("myColdWallet", "password", walletRepository);
            (Wallet.Wallet hotWallet, ExtKey hotWalletExtKey)               = this.walletFixture.GenerateBlankWallet("myHotWallet", "password", walletRepository);
            (Wallet.Wallet withdrawalWallet, ExtKey withdrawalWalletExtKey) = this.walletFixture.GenerateBlankWallet("myWithDrawalWallet", "password", walletRepository);

            HdAccount withdrawalAccount = withdrawalWallet.AddNewAccount("password");
            HdAddress withdrawalAddress = withdrawalAccount.ExternalAddresses.ElementAt(0);
            PubKey    withdrawalPubKey  = withdrawalAddress.Pubkey.GetDestinationPublicKeys(this.Network)[0];

            HdAccount account         = wallet.AddNewAccount("password");
            HdAddress changeAddress   = account.InternalAddresses.ElementAt(0);
            HdAddress spendingAddress = account.ExternalAddresses.ElementAt(0);

            HdAccount coldWalletAccount      = coldWallet.AddNewAccount("password", ColdStakingManager.ColdWalletAccountIndex, ColdStakingManager.ColdWalletAccountName);
            HdAddress destinationColdAddress = coldWalletAccount.ExternalAddresses.ElementAt(0);
            PubKey    destinationColdPubKey  = destinationColdAddress.Pubkey.GetDestinationPublicKeys(this.Network)[0];

            HdAccount hotWalletAccount      = hotWallet.AddNewAccount("password", ColdStakingManager.HotWalletAccountIndex, ColdStakingManager.HotWalletAccountName);
            HdAddress destinationHotAddress = hotWalletAccount.ExternalAddresses.ElementAt(0);
            PubKey    destinationHotPubKey  = destinationHotAddress.Pubkey.GetDestinationPublicKeys(this.Network)[0];

            // Generate a spendable transaction
            (uint256 blockhash, Block block)chainInfo = WalletTestsHelpers.CreateFirstBlockWithPaymentToAddress(chain, wallet.Network, spendingAddress);

            walletManager.ProcessBlock(chainInfo.block);

            // Create a cold staking setup transaction.
            Transaction transaction = this.CreateColdStakingSetupTransaction(wallet, "password", spendingAddress, destinationColdPubKey, destinationHotPubKey,
                                                                             changeAddress, new Money(7500), new Money(5000));

            walletManager.ProcessBlock(WalletTestsHelpers.AppendTransactionInNewBlockToChain(chain, transaction));

            HdAddress spentAddressResult = wallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).ExternalAddresses.ElementAt(0);

            Assert.Single(spendingAddress.Transactions);
            Assert.Equal(transaction.GetHash(), spentAddressResult.Transactions.ElementAt(0).SpendingDetails.TransactionId);
            Assert.Equal(2, transaction.Outputs.Count);
            Assert.True(spentAddressResult.Transactions.ElementAt(0).SpendingDetails.Payments.Any(p => p.DestinationScriptPubKey == transaction.Outputs[1].ScriptPubKey && p.Amount == transaction.Outputs[1].Value));

            Assert.Single(wallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).InternalAddresses.ElementAt(0).Transactions);
            TransactionData changeAddressResult = wallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).InternalAddresses.ElementAt(0).Transactions.ElementAt(0);

            Assert.Equal(transaction.GetHash(), changeAddressResult.Id);
            Assert.Equal(transaction.Outputs[0].Value, changeAddressResult.Amount);
            Assert.Equal(transaction.Outputs[0].ScriptPubKey, changeAddressResult.ScriptPubKey);

            // Verify that the transaction has been recorded in the cold wallet.
            var coldAccounts = coldWallet.GetAccounts(Wallet.Wallet.AllAccounts);

            Assert.Single(coldAccounts.ElementAt(0).ExternalAddresses.ElementAt(0).Transactions);
            TransactionData destinationColdAddressResult = coldAccounts.ElementAt(0).ExternalAddresses.ElementAt(0).Transactions.ElementAt(0);

            Assert.Equal(transaction.GetHash(), destinationColdAddressResult.Id);
            Assert.Equal(transaction.Outputs[1].Value, destinationColdAddressResult.Amount);
            Assert.Equal(transaction.Outputs[1].ScriptPubKey, destinationColdAddressResult.ScriptPubKey);

            // Verify that the transaction has been recorded in the hot wallet.
            var hotAccounts = hotWallet.GetAccounts(Wallet.Wallet.AllAccounts);

            Assert.Single(hotAccounts.ElementAt(0).ExternalAddresses.ElementAt(0).Transactions);
            TransactionData destinationHotAddressResult = hotAccounts.ElementAt(0).ExternalAddresses.ElementAt(0).Transactions.ElementAt(0);

            Assert.Equal(transaction.GetHash(), destinationHotAddressResult.Id);
            Assert.Equal(transaction.Outputs[1].Value, destinationHotAddressResult.Amount);
            Assert.Equal(transaction.Outputs[1].ScriptPubKey, destinationHotAddressResult.ScriptPubKey);

            // Will spend from the cold stake address and send the change back to the same address.
            Money       balance               = walletManager.GetSpendableTransactionsInAccount(new WalletAccountReference(coldWallet.Name, coldWalletAccount.Name), 0).Sum(x => x.Transaction.Amount);
            var         coldStakeAddress      = coldWallet.GetAccounts(Wallet.Wallet.AllAccounts).ElementAt(0).ExternalAddresses.ElementAt(0);
            Transaction withdrawalTransaction = this.CreateColdStakingWithdrawalTransaction(coldWallet, "password", coldStakeAddress,
                                                                                            withdrawalPubKey, ColdStakingScriptTemplate.Instance.GenerateScriptPubKey(destinationHotPubKey.Hash, destinationColdPubKey.Hash),
                                                                                            new Money(750), new Money(263));

            // Process the transaction.
            walletManager.ProcessBlock(WalletTestsHelpers.AppendTransactionInNewBlockToChain(chain, withdrawalTransaction));

            // Verify that the transaction has been recorded in the withdrawal wallet.
            Assert.Single(withdrawalWallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).ExternalAddresses.ElementAt(0).Transactions);
            TransactionData withdrawalAddressResult = withdrawalWallet.AccountsRoot.ElementAt(0).Accounts.ElementAt(0).ExternalAddresses.ElementAt(0).Transactions
                                                      .Where(t => t.Id == withdrawalTransaction.GetHash()).First();

            Assert.Equal(withdrawalTransaction.GetHash(), withdrawalAddressResult.Id);
            Assert.Equal(withdrawalTransaction.Outputs[1].Value, withdrawalAddressResult.Amount);
            Assert.Equal(withdrawalTransaction.Outputs[1].ScriptPubKey, withdrawalAddressResult.ScriptPubKey);

            // Verify that the transaction has been recorded in the cold wallet.
            Assert.Equal(2, coldWallet.GetAccounts(Wallet.Wallet.AllAccounts).ElementAt(0).ExternalAddresses.ElementAt(0).Transactions.Count);
            TransactionData coldAddressResult = coldWallet.GetAccounts(Wallet.Wallet.AllAccounts).ElementAt(0).ExternalAddresses.ElementAt(0).Transactions
                                                .Where(t => t.Id == withdrawalTransaction.GetHash()).First();

            Assert.Equal(withdrawalTransaction.GetHash(), coldAddressResult.Id);
            Assert.Equal(withdrawalTransaction.Outputs[0].Value, coldAddressResult.Amount);
            Assert.Equal(withdrawalTransaction.Outputs[0].ScriptPubKey, coldAddressResult.ScriptPubKey);

            // Verify that the transaction has been recorded in the hot wallet.
            Assert.Equal(2, hotWallet.GetAccounts(Wallet.Wallet.AllAccounts).ElementAt(0).ExternalAddresses.ElementAt(0).Transactions.Count);
            TransactionData hotAddressResult = hotWallet.GetAccounts(Wallet.Wallet.AllAccounts).ElementAt(0).ExternalAddresses.ElementAt(0).Transactions
                                               .Where(t => t.Id == withdrawalTransaction.GetHash()).First();

            Assert.Equal(withdrawalTransaction.GetHash(), hotAddressResult.Id);
            Assert.Equal(withdrawalTransaction.Outputs[0].Value, hotAddressResult.Amount);
            Assert.Equal(withdrawalTransaction.Outputs[0].ScriptPubKey, hotAddressResult.ScriptPubKey);

            // Verify the hot amount returned by GetBalances.
            AccountBalance hotBalance = walletManager.GetBalances("myHotWallet", ColdStakingManager.HotWalletAccountName).FirstOrDefault();

            Assert.Equal(hotBalance.AmountConfirmed, hotAddressResult.Amount);

            // Verify the cold amount returned by GetBalances.
            AccountBalance coldBalance = walletManager.GetBalances("myColdWallet", ColdStakingManager.ColdWalletAccountName).FirstOrDefault();

            Assert.Equal(coldBalance.AmountConfirmed, coldAddressResult.Amount);
        }