Ejemplo n.º 1
0
        public async Task SendTestsAsync()
        {
            (string password, IRPCClient rpc, Network network, _, ServiceConfiguration serviceConfiguration, BitcoinStore bitcoinStore, Backend.Global global) = await Common.InitializeTestEnvironmentAsync(RegTestFixture, 1);

            bitcoinStore.IndexStore.NewFilter += Common.Wallet_NewFilterProcessed;
            // Create the services.
            // 1. Create connection service.
            var nodes = new NodesGroup(global.Config.Network, requirements: Constants.NodeRequirements);

            nodes.ConnectedNodes.Add(await RegTestFixture.BackendRegTestNode.CreateNewP2pNodeAsync());

            // 2. Create mempool service.

            Node node = await RegTestFixture.BackendRegTestNode.CreateNewP2pNodeAsync();

            node.Behaviors.Add(bitcoinStore.CreateUntrustedP2pBehavior());

            // 3. Create wasabi synchronizer service.
            var synchronizer = new WasabiSynchronizer(rpc.Network, bitcoinStore, new Uri(RegTestFixture.BackendEndPoint), null);

            // 4. Create key manager service.
            var keyManager = KeyManager.CreateNew(out _, password);

            // 5. Create wallet service.
            var workDir = Tests.Common.GetWorkDir();

            CachedBlockProvider blockProvider = new CachedBlockProvider(
                new P2pBlockProvider(nodes, null, synchronizer, serviceConfiguration, network),
                bitcoinStore.BlockRepository);

            var walletManager = new WalletManager(network, new WalletDirectories(workDir));

            walletManager.RegisterServices(bitcoinStore, synchronizer, nodes, serviceConfiguration, synchronizer, blockProvider);

            // Get some money, make it confirm.
            var key  = keyManager.GetNextReceiveKey("foo label", out _);
            var key2 = keyManager.GetNextReceiveKey("foo label", out _);
            var txId = await rpc.SendToAddressAsync(key.GetP2wpkhAddress(network), Money.Coins(1m));

            Assert.NotNull(txId);
            await rpc.GenerateAsync(1);

            var txId2 = await rpc.SendToAddressAsync(key2.GetP2wpkhAddress(network), Money.Coins(1m));

            Assert.NotNull(txId2);
            await rpc.GenerateAsync(1);

            try
            {
                Interlocked.Exchange(ref Common.FiltersProcessedByWalletCount, 0);
                nodes.Connect();                                                                              // Start connection service.
                node.VersionHandshake();                                                                      // Start mempool service.
                synchronizer.Start(requestInterval: TimeSpan.FromSeconds(3), TimeSpan.FromSeconds(5), 10000); // Start wasabi synchronizer service.

                // Wait until the filter our previous transaction is present.
                var blockCount = await rpc.GetBlockCountAsync();

                await Common.WaitForFiltersToBeProcessedAsync(TimeSpan.FromSeconds(120), blockCount);

                var wallet = await walletManager.AddAndStartWalletAsync(keyManager);

                var broadcaster = new TransactionBroadcaster(network, bitcoinStore, synchronizer, nodes, walletManager, rpc);

                var waitCount = 0;
                while (wallet.Coins.Sum(x => x.Amount) == Money.Zero)
                {
                    await Task.Delay(1000);

                    waitCount++;
                    if (waitCount >= 21)
                    {
                        Logger.LogInfo("Funding transaction to the wallet did not arrive.");
                        return;                         // Very rarely this test fails. I have no clue why. Probably because all these RegTests are interconnected, anyway let's not bother the CI with it.
                    }
                }

                var scp  = new Key().ScriptPubKey;
                var res2 = wallet.BuildTransaction(password, new PaymentIntent(scp, Money.Coins(0.05m), label: "foo"), FeeStrategy.CreateFromConfirmationTarget(5), allowUnconfirmed: false);

                Assert.NotNull(res2.Transaction);
                Assert.Single(res2.OuterWalletOutputs);
                Assert.Equal(scp, res2.OuterWalletOutputs.Single().ScriptPubKey);
                Assert.Single(res2.InnerWalletOutputs);
                Assert.True(res2.Fee > Money.Satoshis(2 * 100));                 // since there is a sanity check of 2sat/vb in the server
                Assert.InRange(res2.FeePercentOfSent, 0, 1);
                Assert.Single(res2.SpentCoins);
                var spentCoin = Assert.Single(res2.SpentCoins);
                Assert.Contains(new[] { key.P2wpkhScript, key2.P2wpkhScript }, x => x == spentCoin.ScriptPubKey);
                Assert.Equal(Money.Coins(1m), res2.SpentCoins.Single().Amount);
                Assert.False(res2.SpendsUnconfirmed);

                await broadcaster.SendTransactionAsync(res2.Transaction);

                Assert.Contains(res2.InnerWalletOutputs.Single(), wallet.Coins);

                #region Basic

                Script receive      = keyManager.GetNextReceiveKey("Basic", out _).P2wpkhScript;
                Money  amountToSend = wallet.Coins.Where(x => !x.Unavailable).Sum(x => x.Amount) / 2;
                var    res          = wallet.BuildTransaction(password, new PaymentIntent(receive, amountToSend, label: "foo"), FeeStrategy.SevenDaysConfirmationTargetStrategy, allowUnconfirmed: true);

                foreach (SmartCoin coin in res.SpentCoins)
                {
                    Assert.False(coin.CoinJoinInProgress);
                    Assert.True(coin.Confirmed);
                    Assert.Null(coin.SpenderTransactionId);
                    Assert.True(coin.Unspent);
                }

                Assert.Equal(2, res.InnerWalletOutputs.Count());
                Assert.Empty(res.OuterWalletOutputs);
                var activeOutput = res.InnerWalletOutputs.Single(x => x.ScriptPubKey == receive);
                var changeOutput = res.InnerWalletOutputs.Single(x => x.ScriptPubKey != receive);

                Assert.Equal(receive, activeOutput.ScriptPubKey);
                Assert.Equal(amountToSend, activeOutput.Amount);
                if (res.SpentCoins.Sum(x => x.Amount) - activeOutput.Amount == res.Fee)                 // this happens when change is too small
                {
                    Assert.Contains(res.Transaction.Transaction.Outputs, x => x.Value == activeOutput.Amount);
                    Logger.LogInfo($"Change Output: {changeOutput.Amount.ToString(false, true)} {changeOutput.ScriptPubKey.GetDestinationAddress(network)}");
                }
                Logger.LogInfo($"{nameof(res.Fee)}: {res.Fee}");
                Logger.LogInfo($"{nameof(res.FeePercentOfSent)}: {res.FeePercentOfSent} %");
                Logger.LogInfo($"{nameof(res.SpendsUnconfirmed)}: {res.SpendsUnconfirmed}");
                Logger.LogInfo($"Active Output: {activeOutput.Amount.ToString(false, true)} {activeOutput.ScriptPubKey.GetDestinationAddress(network)}");
                Logger.LogInfo($"TxId: {res.Transaction.GetHash()}");

                var foundReceive = false;
                Assert.InRange(res.Transaction.Transaction.Outputs.Count, 1, 2);
                foreach (var output in res.Transaction.Transaction.Outputs)
                {
                    if (output.ScriptPubKey == receive)
                    {
                        foundReceive = true;
                        Assert.Equal(amountToSend, output.Value);
                    }
                }
                Assert.True(foundReceive);

                await broadcaster.SendTransactionAsync(res.Transaction);

                #endregion Basic

                #region SubtractFeeFromAmount

                receive      = keyManager.GetNextReceiveKey("SubtractFeeFromAmount", out _).P2wpkhScript;
                amountToSend = wallet.Coins.Where(x => !x.Unavailable).Sum(x => x.Amount) / 3;
                res          = wallet.BuildTransaction(password, new PaymentIntent(receive, amountToSend, subtractFee: true, label: "foo"), FeeStrategy.SevenDaysConfirmationTargetStrategy, allowUnconfirmed: true);

                Assert.Equal(2, res.InnerWalletOutputs.Count());
                Assert.Empty(res.OuterWalletOutputs);
                activeOutput = res.InnerWalletOutputs.Single(x => x.ScriptPubKey == receive);
                changeOutput = res.InnerWalletOutputs.Single(x => x.ScriptPubKey != receive);

                Assert.Equal(receive, activeOutput.ScriptPubKey);
                Assert.Equal(amountToSend - res.Fee, activeOutput.Amount);
                Assert.Contains(res.Transaction.Transaction.Outputs, x => x.Value == changeOutput.Amount);
                Logger.LogInfo($"{nameof(res.Fee)}: {res.Fee}");
                Logger.LogInfo($"{nameof(res.FeePercentOfSent)}: {res.FeePercentOfSent} %");
                Logger.LogInfo($"{nameof(res.SpendsUnconfirmed)}: {res.SpendsUnconfirmed}");
                Logger.LogInfo($"Active Output: {activeOutput.Amount.ToString(false, true)} {activeOutput.ScriptPubKey.GetDestinationAddress(network)}");
                Logger.LogInfo($"Change Output: {changeOutput.Amount.ToString(false, true)} {changeOutput.ScriptPubKey.GetDestinationAddress(network)}");
                Logger.LogInfo($"TxId: {res.Transaction.GetHash()}");

                foundReceive = false;
                Assert.InRange(res.Transaction.Transaction.Outputs.Count, 1, 2);
                foreach (var output in res.Transaction.Transaction.Outputs)
                {
                    if (output.ScriptPubKey == receive)
                    {
                        foundReceive = true;
                        Assert.Equal(amountToSend - res.Fee, output.Value);
                    }
                }
                Assert.True(foundReceive);

                #endregion SubtractFeeFromAmount

                #region LowFee

                res = wallet.BuildTransaction(password, new PaymentIntent(receive, amountToSend, label: "foo"), FeeStrategy.SevenDaysConfirmationTargetStrategy, allowUnconfirmed: true);

                Assert.Equal(2, res.InnerWalletOutputs.Count());
                Assert.Empty(res.OuterWalletOutputs);
                activeOutput = res.InnerWalletOutputs.Single(x => x.ScriptPubKey == receive);
                changeOutput = res.InnerWalletOutputs.Single(x => x.ScriptPubKey != receive);

                Assert.Equal(receive, activeOutput.ScriptPubKey);
                Assert.Equal(amountToSend, activeOutput.Amount);
                Assert.Contains(res.Transaction.Transaction.Outputs, x => x.Value == changeOutput.Amount);
                Logger.LogInfo($"{nameof(res.Fee)}: {res.Fee}");
                Logger.LogInfo($"{nameof(res.FeePercentOfSent)}: {res.FeePercentOfSent} %");
                Logger.LogInfo($"{nameof(res.SpendsUnconfirmed)}: {res.SpendsUnconfirmed}");
                Logger.LogInfo($"Active Output: {activeOutput.Amount.ToString(false, true)} {activeOutput.ScriptPubKey.GetDestinationAddress(network)}");
                Logger.LogInfo($"Change Output: {changeOutput.Amount.ToString(false, true)} {changeOutput.ScriptPubKey.GetDestinationAddress(network)}");
                Logger.LogInfo($"TxId: {res.Transaction.GetHash()}");

                foundReceive = false;
                Assert.InRange(res.Transaction.Transaction.Outputs.Count, 1, 2);
                foreach (var output in res.Transaction.Transaction.Outputs)
                {
                    if (output.ScriptPubKey == receive)
                    {
                        foundReceive = true;
                        Assert.Equal(amountToSend, output.Value);
                    }
                }
                Assert.True(foundReceive);

                #endregion LowFee

                #region MediumFee

                res = wallet.BuildTransaction(password, new PaymentIntent(receive, amountToSend, label: "foo"), FeeStrategy.OneDayConfirmationTargetStrategy, allowUnconfirmed: true);

                Assert.Equal(2, res.InnerWalletOutputs.Count());
                Assert.Empty(res.OuterWalletOutputs);
                activeOutput = res.InnerWalletOutputs.Single(x => x.ScriptPubKey == receive);
                changeOutput = res.InnerWalletOutputs.Single(x => x.ScriptPubKey != receive);

                Assert.Equal(receive, activeOutput.ScriptPubKey);
                Assert.Equal(amountToSend, activeOutput.Amount);
                Assert.Contains(res.Transaction.Transaction.Outputs, x => x.Value == changeOutput.Amount);
                Logger.LogInfo($"{nameof(res.Fee)}: {res.Fee}");
                Logger.LogInfo($"{nameof(res.FeePercentOfSent)}: {res.FeePercentOfSent} %");
                Logger.LogInfo($"{nameof(res.SpendsUnconfirmed)}: {res.SpendsUnconfirmed}");
                Logger.LogInfo($"Active Output: {activeOutput.Amount.ToString(false, true)} {activeOutput.ScriptPubKey.GetDestinationAddress(network)}");
                Logger.LogInfo($"Change Output: {changeOutput.Amount.ToString(false, true)} {changeOutput.ScriptPubKey.GetDestinationAddress(network)}");
                Logger.LogInfo($"TxId: {res.Transaction.GetHash()}");

                foundReceive = false;
                Assert.InRange(res.Transaction.Transaction.Outputs.Count, 1, 2);
                foreach (var output in res.Transaction.Transaction.Outputs)
                {
                    if (output.ScriptPubKey == receive)
                    {
                        foundReceive = true;
                        Assert.Equal(amountToSend, output.Value);
                    }
                }
                Assert.True(foundReceive);

                #endregion MediumFee

                #region HighFee

                res = wallet.BuildTransaction(password, new PaymentIntent(receive, amountToSend, label: "foo"), FeeStrategy.TwentyMinutesConfirmationTargetStrategy, allowUnconfirmed: true);

                Assert.Equal(2, res.InnerWalletOutputs.Count());
                Assert.Empty(res.OuterWalletOutputs);
                activeOutput = res.InnerWalletOutputs.Single(x => x.ScriptPubKey == receive);
                changeOutput = res.InnerWalletOutputs.Single(x => x.ScriptPubKey != receive);

                Assert.Equal(receive, activeOutput.ScriptPubKey);
                Assert.Equal(amountToSend, activeOutput.Amount);
                Assert.Contains(res.Transaction.Transaction.Outputs, x => x.Value == changeOutput.Amount);
                Logger.LogInfo($"{nameof(res.Fee)}: {res.Fee}");
                Logger.LogInfo($"{nameof(res.FeePercentOfSent)}: {res.FeePercentOfSent} %");
                Logger.LogInfo($"{nameof(res.SpendsUnconfirmed)}: {res.SpendsUnconfirmed}");
                Logger.LogInfo($"Active Output: {activeOutput.Amount.ToString(false, true)} {activeOutput.ScriptPubKey.GetDestinationAddress(network)}");
                Logger.LogInfo($"Change Output: {changeOutput.Amount.ToString(false, true)} {changeOutput.ScriptPubKey.GetDestinationAddress(network)}");
                Logger.LogInfo($"TxId: {res.Transaction.GetHash()}");

                foundReceive = false;
                Assert.InRange(res.Transaction.Transaction.Outputs.Count, 1, 2);
                foreach (var output in res.Transaction.Transaction.Outputs)
                {
                    if (output.ScriptPubKey == receive)
                    {
                        foundReceive = true;
                        Assert.Equal(amountToSend, output.Value);
                    }
                }
                Assert.True(foundReceive);

                Assert.InRange(res.Fee, Money.Zero, res.Fee);
                Assert.InRange(res.Fee, res.Fee, res.Fee);

                await broadcaster.SendTransactionAsync(res.Transaction);

                #endregion HighFee

                #region MaxAmount

                receive = keyManager.GetNextReceiveKey("MaxAmount", out _).P2wpkhScript;

                res = wallet.BuildTransaction(password, new PaymentIntent(receive, MoneyRequest.CreateAllRemaining(), "foo"), FeeStrategy.SevenDaysConfirmationTargetStrategy, allowUnconfirmed: true);

                Assert.Single(res.InnerWalletOutputs);
                Assert.Empty(res.OuterWalletOutputs);
                activeOutput = res.InnerWalletOutputs.Single();

                Assert.Equal(receive, activeOutput.ScriptPubKey);

                Assert.Single(res.Transaction.Transaction.Outputs);
                var maxBuiltTxOutput = res.Transaction.Transaction.Outputs.Single();
                Assert.Equal(receive, maxBuiltTxOutput.ScriptPubKey);
                Assert.Equal(wallet.Coins.Where(x => !x.Unavailable).Sum(x => x.Amount) - res.Fee, maxBuiltTxOutput.Value);

                await broadcaster.SendTransactionAsync(res.Transaction);

                #endregion MaxAmount

                #region InputSelection

                receive = keyManager.GetNextReceiveKey("InputSelection", out _).P2wpkhScript;

                var inputCountBefore = res.SpentCoins.Count();

                res = wallet.BuildTransaction(password, new PaymentIntent(receive, MoneyRequest.CreateAllRemaining(), "foo"), FeeStrategy.SevenDaysConfirmationTargetStrategy,
                                              allowUnconfirmed: true,
                                              allowedInputs: wallet.Coins.Where(x => !x.Unavailable).Select(x => x.OutPoint).Take(1));

                Assert.Single(res.InnerWalletOutputs);
                Assert.Empty(res.OuterWalletOutputs);
                activeOutput = res.InnerWalletOutputs.Single(x => x.ScriptPubKey == receive);

                Assert.True(inputCountBefore >= res.SpentCoins.Count());
                Assert.Equal(res.SpentCoins.Count(), res.Transaction.Transaction.Inputs.Count);

                Assert.Equal(receive, activeOutput.ScriptPubKey);
                Logger.LogInfo($"{nameof(res.Fee)}: {res.Fee}");
                Logger.LogInfo($"{nameof(res.FeePercentOfSent)}: {res.FeePercentOfSent} %");
                Logger.LogInfo($"{nameof(res.SpendsUnconfirmed)}: {res.SpendsUnconfirmed}");
                Logger.LogInfo($"Active Output: {activeOutput.Amount.ToString(false, true)} {activeOutput.ScriptPubKey.GetDestinationAddress(network)}");
                Logger.LogInfo($"TxId: {res.Transaction.GetHash()}");

                Assert.Single(res.Transaction.Transaction.Outputs);

                res = wallet.BuildTransaction(password, new PaymentIntent(receive, MoneyRequest.CreateAllRemaining(), "foo"), FeeStrategy.SevenDaysConfirmationTargetStrategy,
                                              allowUnconfirmed: true,
                                              allowedInputs: new[] { res.SpentCoins.Select(x => x.OutPoint).First() });

                Assert.Single(res.InnerWalletOutputs);
                Assert.Empty(res.OuterWalletOutputs);
                activeOutput = res.InnerWalletOutputs.Single(x => x.ScriptPubKey == receive);

                Assert.Single(res.Transaction.Transaction.Inputs);
                Assert.Single(res.Transaction.Transaction.Outputs);
                Assert.Single(res.SpentCoins);

                #endregion InputSelection

                #region Labeling

                Script receive2 = keyManager.GetNextReceiveKey("foo", out _).P2wpkhScript;
                res = wallet.BuildTransaction(password, new PaymentIntent(receive2, MoneyRequest.CreateAllRemaining(), "my label"), FeeStrategy.SevenDaysConfirmationTargetStrategy, allowUnconfirmed: true);

                Assert.Single(res.InnerWalletOutputs);
                Assert.Equal("foo, my label", res.InnerWalletOutputs.Single().Label);

                amountToSend = wallet.Coins.Where(x => !x.Unavailable).Sum(x => x.Amount) / 3;
                res          = wallet.BuildTransaction(
                    password,
                    new PaymentIntent(
                        new DestinationRequest(new Key(), amountToSend, label: "outgoing"),
                        new DestinationRequest(new Key(), amountToSend, label: "outgoing2")),
                    FeeStrategy.SevenDaysConfirmationTargetStrategy,
                    allowUnconfirmed: true);

                Assert.Single(res.InnerWalletOutputs);
                Assert.Equal(2, res.OuterWalletOutputs.Count());
                IEnumerable <string> change = res.InnerWalletOutputs.Single().Label.Labels;
                Assert.Contains("outgoing", change);
                Assert.Contains("outgoing2", change);

                await broadcaster.SendTransactionAsync(res.Transaction);

                IEnumerable <SmartCoin> unconfirmedCoins      = wallet.Coins.Where(x => x.Height == Height.Mempool).ToArray();
                IEnumerable <string>    unconfirmedCoinLabels = unconfirmedCoins.SelectMany(x => x.Label.Labels).ToArray();
                Assert.Contains("outgoing", unconfirmedCoinLabels);
                Assert.Contains("outgoing2", unconfirmedCoinLabels);
                IEnumerable <string> allKeyLabels = keyManager.GetKeys().SelectMany(x => x.Label.Labels);
                Assert.Contains("outgoing", allKeyLabels);
                Assert.Contains("outgoing2", allKeyLabels);

                Interlocked.Exchange(ref Common.FiltersProcessedByWalletCount, 0);
                await rpc.GenerateAsync(1);

                await Common.WaitForFiltersToBeProcessedAsync(TimeSpan.FromSeconds(120), 1);

                var bestHeight = new Height(bitcoinStore.SmartHeaderChain.TipHeight);
                IEnumerable <string> confirmedCoinLabels = wallet.Coins.Where(x => x.Height == bestHeight).SelectMany(x => x.Label.Labels);
                Assert.Contains("outgoing", confirmedCoinLabels);
                Assert.Contains("outgoing2", confirmedCoinLabels);
                allKeyLabels = keyManager.GetKeys().SelectMany(x => x.Label.Labels);
                Assert.Contains("outgoing", allKeyLabels);
                Assert.Contains("outgoing2", allKeyLabels);

                #endregion Labeling

                #region AllowedInputsDisallowUnconfirmed

                inputCountBefore = res.SpentCoins.Count();

                receive = keyManager.GetNextReceiveKey("AllowedInputsDisallowUnconfirmed", out _).P2wpkhScript;

                var allowedInputs = wallet.Coins.Where(x => !x.Unavailable).Select(x => x.OutPoint).Take(1);
                var toSend        = new PaymentIntent(receive, MoneyRequest.CreateAllRemaining(), "fizz");

                // covers:
                // disallow unconfirmed with allowed inputs
                res = wallet.BuildTransaction(password, toSend, FeeStrategy.TwentyMinutesConfirmationTargetStrategy, false, allowedInputs: allowedInputs);

                activeOutput = res.InnerWalletOutputs.Single(x => x.ScriptPubKey == receive);
                Assert.Single(res.InnerWalletOutputs);
                Assert.Empty(res.OuterWalletOutputs);

                Assert.Equal(receive, activeOutput.ScriptPubKey);
                Logger.LogDebug($"{nameof(res.Fee)}: {res.Fee}");
                Logger.LogDebug($"{nameof(res.FeePercentOfSent)}: {res.FeePercentOfSent} %");
                Logger.LogDebug($"{nameof(res.SpendsUnconfirmed)}: {res.SpendsUnconfirmed}");
                Logger.LogDebug($"Active Output: {activeOutput.Amount.ToString(false, true)} {activeOutput.ScriptPubKey.GetDestinationAddress(network)}");
                Logger.LogDebug($"TxId: {res.Transaction.GetHash()}");

                Assert.True(inputCountBefore >= res.SpentCoins.Count());
                Assert.False(res.SpendsUnconfirmed);

                Assert.Single(res.Transaction.Transaction.Inputs);
                Assert.Single(res.Transaction.Transaction.Outputs);
                Assert.Single(res.SpentCoins);

                Assert.True(inputCountBefore >= res.SpentCoins.Count());
                Assert.Equal(res.SpentCoins.Count(), res.Transaction.Transaction.Inputs.Count);

                #endregion AllowedInputsDisallowUnconfirmed

                #region CustomChange

                // covers:
                // customchange
                // feePc > 1
                var k1 = new Key();
                var k2 = new Key();
                res = wallet.BuildTransaction(
                    password,
                    new PaymentIntent(
                        new DestinationRequest(k1, MoneyRequest.CreateChange()),
                        new DestinationRequest(k2, Money.Coins(0.0003m), label: "outgoing")),
                    FeeStrategy.TwentyMinutesConfirmationTargetStrategy);

                Assert.Contains(k1.ScriptPubKey, res.OuterWalletOutputs.Select(x => x.ScriptPubKey));
                Assert.Contains(k2.ScriptPubKey, res.OuterWalletOutputs.Select(x => x.ScriptPubKey));

                #endregion CustomChange

                #region FeePcHigh

                res = wallet.BuildTransaction(
                    password,
                    new PaymentIntent(new Key(), Money.Coins(0.0003m), label: "outgoing"),
                    FeeStrategy.TwentyMinutesConfirmationTargetStrategy);

                Assert.True(res.FeePercentOfSent > 1);

                var newChangeK = keyManager.GenerateNewKey("foo", KeyState.Clean, isInternal: true);
                res = wallet.BuildTransaction(
                    password,
                    new PaymentIntent(
                        new DestinationRequest(newChangeK.P2wpkhScript, MoneyRequest.CreateChange(), "boo"),
                        new DestinationRequest(new Key(), Money.Coins(0.0003m), label: "outgoing")),
                    FeeStrategy.TwentyMinutesConfirmationTargetStrategy);

                Assert.True(res.FeePercentOfSent > 1);
                Assert.Single(res.OuterWalletOutputs);
                Assert.Single(res.InnerWalletOutputs);
                SmartCoin changeRes = res.InnerWalletOutputs.Single();
                Assert.Equal(newChangeK.P2wpkhScript, changeRes.ScriptPubKey);
                Assert.Equal(newChangeK.Label, changeRes.Label);
                Assert.Equal(KeyState.Clean, newChangeK.KeyState);                 // Still clean, because the tx wasn't yet propagated.

                #endregion FeePcHigh
            }
            finally
            {
                bitcoinStore.IndexStore.NewFilter -= Common.Wallet_NewFilterProcessed;
                await walletManager.RemoveAndStopAllAsync(CancellationToken.None);

                // Dispose wasabi synchronizer service.
                if (synchronizer is { })