public void BuildTransactionFeeTooLowThrowsWalletException()
{
Assert.Throws <WalletException>(() =>
{
var walletFeePolicy = new Mock <IWalletFeePolicy>();
walletFeePolicy.Setup(w => w.GetFeeRate(FeeType.Low.ToConfirmations()))
.Returns(new FeeRate(0));
var wallet = WalletTestsHelpers.GenerateBlankWallet("myWallet1", "password");
var accountKeys = WalletTestsHelpers.GenerateAccountKeys(wallet, "password", "m/44'/0'/0'");
var spendingKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/0");
var destinationKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/1");
var changeKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "1/0");
var address = 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 chain = new ConcurrentChain(wallet.Network);
WalletTestsHelpers.AddBlocksWithCoinbaseToChain(wallet.Network, chain, address);
wallet.AccountsRoot.ElementAt(0).Accounts.Add(new HdAccount
{
Index = 0,
Name = "account1",
HdPath = "m/44'/0'/0'",
ExtendedPubKey = accountKeys.ExtPubKey,
ExternalAddresses = new List <HdAddress> {
address
},
InternalAddresses = new List <HdAddress>
{
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>()
}
}
});
var dataDir = "TestData/WalletTransactionHandlerTest/BuildTransactionFeeTooLowThrowsWalletException";
var walletManager = new WalletManager(this.LoggerFactory.Object, Network.Main, chain, NodeSettings.Default(), new Mock <WalletSettings>().Object,
new DataFolder(new NodeSettings(args: new string[] { $"-datadir={dataDir}" }).DataDir), walletFeePolicy.Object, new Mock <IAsyncLoopFactory>().Object, new NodeLifetime(), DateTimeProvider.Default);
var walletTransactionHandler = new WalletTransactionHandler(this.LoggerFactory.Object, walletManager, walletFeePolicy.Object, Network.Main);
walletManager.Wallets.Add(wallet);
var walletReference = new WalletAccountReference
{
AccountName = "account1",
WalletName = "myWallet1"
};
walletTransactionHandler.BuildTransaction(CreateContext(walletReference, "password", destinationKeys.PubKey.ScriptPubKey, new Money(7500), FeeType.Low, 0));
});
}
public void FundTransaction_Given__a_wallet_has_enough_inputs__When__adding_inputs_to_an_existing_transaction__Then__the_transaction_is_funded_successfully()
{
DataFolder dataFolder = CreateDataFolder(this);
var wallet = WalletTestsHelpers.GenerateBlankWallet("myWallet1", "password");
var accountKeys = WalletTestsHelpers.GenerateAccountKeys(wallet, "password", "m/44'/0'/0'");
var spendingKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/0");
var destinationKeys1 = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/1");
var destinationKeys2 = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/2");
var destinationKeys3 = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/3");
var address = 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>()
};
// wallet with 4 coinbase outputs of 50 = 200 Bitcoin
var chain = new ConcurrentChain(wallet.Network);
WalletTestsHelpers.AddBlocksWithCoinbaseToChain(wallet.Network, chain, address, 4);
wallet.AccountsRoot.ElementAt(0).Accounts.Add(new HdAccount
{
Index = 0,
Name = "account1",
HdPath = "m/44'/0'/0'",
ExtendedPubKey = accountKeys.ExtPubKey,
ExternalAddresses = new List <HdAddress> {
address
},
InternalAddresses = new List <HdAddress>()
});
var walletFeePolicy = new Mock <IWalletFeePolicy>();
walletFeePolicy.Setup(w => w.GetFeeRate(FeeType.Low.ToConfirmations())).Returns(new FeeRate(20000));
var overrideFeeRate = new FeeRate(20000);
var walletManager = new WalletManager(this.LoggerFactory.Object, Network.Main, chain, NodeSettings.Default(), new Mock <WalletSettings>().Object,
dataFolder, walletFeePolicy.Object, new Mock <IAsyncLoopFactory>().Object, new NodeLifetime(), DateTimeProvider.Default);
var walletTransactionHandler = new WalletTransactionHandler(this.LoggerFactory.Object, walletManager, walletFeePolicy.Object, Network.Main);
walletManager.Wallets.Add(wallet);
var walletReference = new WalletAccountReference
{
AccountName = "account1",
WalletName = "myWallet1"
};
// create a trx with 3 outputs 50 + 50 + 49 = 149 BTC
var context = new TransactionBuildContext(walletReference,
new[]
{
new Recipient {
Amount = new Money(50, MoneyUnit.BTC), ScriptPubKey = destinationKeys1.PubKey.ScriptPubKey
},
new Recipient {
Amount = new Money(50, MoneyUnit.BTC), ScriptPubKey = destinationKeys2.PubKey.ScriptPubKey
},
new Recipient {
Amount = new Money(49, MoneyUnit.BTC), ScriptPubKey = destinationKeys3.PubKey.ScriptPubKey
}
}
.ToList(), "password")
{
MinConfirmations = 0,
FeeType = FeeType.Low
};
var fundTransaction = walletTransactionHandler.BuildTransaction(context);
Assert.Equal(3, fundTransaction.Inputs.Count); // 3 inputs
Assert.Equal(4, fundTransaction.Outputs.Count); // 3 outputs with change
// remove the change output
fundTransaction.Outputs.Remove(fundTransaction.Outputs.First(f => f.ScriptPubKey == context.ChangeAddress.ScriptPubKey));
// remove 2 inputs they will be added back by fund transaction
fundTransaction.Inputs.RemoveAt(2);
fundTransaction.Inputs.RemoveAt(1);
Assert.Single(fundTransaction.Inputs); // 3 inputs
var fundTransactionClone = fundTransaction.Clone();
var fundContext = new TransactionBuildContext(walletReference, new List <Recipient>(), "password")
{
MinConfirmations = 0,
FeeType = FeeType.Low
};
fundContext.OverrideFeeRate = overrideFeeRate;
walletTransactionHandler.FundTransaction(fundContext, fundTransaction);
foreach (var input in fundTransactionClone.Inputs) // all original inputs are still in the trx
{
Assert.Contains(fundTransaction.Inputs, a => a.PrevOut == input.PrevOut);
}
Assert.Equal(3, fundTransaction.Inputs.Count); // we expect 3 inputs
Assert.Equal(4, fundTransaction.Outputs.Count); // we expect 4 outputs
Assert.Equal(new Money(150, MoneyUnit.BTC) - fundContext.TransactionFee, fundTransaction.TotalOut);
Assert.Contains(fundTransaction.Outputs, a => a.ScriptPubKey == destinationKeys1.PubKey.ScriptPubKey);
Assert.Contains(fundTransaction.Outputs, a => a.ScriptPubKey == destinationKeys2.PubKey.ScriptPubKey);
Assert.Contains(fundTransaction.Outputs, a => a.ScriptPubKey == destinationKeys3.PubKey.ScriptPubKey);
}
public void EstimateFeeWithLowFeeMatchesBuildTxLowFee()
{
var dataFolder = CreateDataFolder(this);
Wallet wallet = WalletTestsHelpers.GenerateBlankWallet("myWallet1", "password");
var accountKeys = WalletTestsHelpers.GenerateAccountKeys(wallet, "password", "m/44'/0'/0'");
var spendingKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/0");
var destinationKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/1");
HdAddress address = 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>()
};
ConcurrentChain chain = new ConcurrentChain(wallet.Network);
WalletTestsHelpers.AddBlocksWithCoinbaseToChain(wallet.Network, chain, address);
TransactionData addressTransaction = address.Transactions.First();
wallet.AccountsRoot.ElementAt(0).Accounts.Add(new HdAccount
{
Index = 0,
Name = "account1",
HdPath = "m/44'/0'/0'",
ExtendedPubKey = accountKeys.ExtPubKey,
ExternalAddresses = new List <HdAddress> {
address
},
InternalAddresses = new List <HdAddress>()
});
var walletFeePolicy = new Mock <IWalletFeePolicy>();
walletFeePolicy.Setup(w => w.GetFeeRate(FeeType.Low.ToConfirmations()))
.Returns(new FeeRate(20000));
var walletManager = new WalletManager(this.LoggerFactory.Object, Network.Main, chain, NodeSettings.Default(), new Mock <WalletSettings>().Object,
dataFolder, walletFeePolicy.Object, new Mock <IAsyncLoopFactory>().Object, new NodeLifetime(), DateTimeProvider.Default);
WalletTransactionHandler walletTransactionHandler = new WalletTransactionHandler(this.LoggerFactory.Object, walletManager, walletFeePolicy.Object, Network.Main);
walletManager.Wallets.Add(wallet);
WalletAccountReference walletReference = new WalletAccountReference
{
AccountName = "account1",
WalletName = "myWallet1"
};
// Context to build requires password in order to sign transaction.
TransactionBuildContext buildContext = CreateContext(walletReference, "password", destinationKeys.PubKey.ScriptPubKey, new Money(7500), FeeType.Low, 0);
walletTransactionHandler.BuildTransaction(buildContext);
// Context for estimate does not need password.
TransactionBuildContext estimateContext = CreateContext(walletReference, null, destinationKeys.PubKey.ScriptPubKey, new Money(7500), FeeType.Low, 0);
Money fee = walletTransactionHandler.EstimateFee(estimateContext);
Assert.Equal(fee, buildContext.TransactionFee);
}
public void BuildTransactionNoChangeAdressesLeftCreatesNewChangeAddress()
{
DataFolder dataFolder = CreateDataFolder(this);
var wallet = WalletTestsHelpers.GenerateBlankWallet("myWallet1", "password");
var accountKeys = WalletTestsHelpers.GenerateAccountKeys(wallet, "password", "m/44'/0'/0'");
var spendingKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/0");
var destinationKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "0/1");
var address = 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 chain = new ConcurrentChain(wallet.Network);
WalletTestsHelpers.AddBlocksWithCoinbaseToChain(wallet.Network, chain, address);
var addressTransaction = address.Transactions.First();
wallet.AccountsRoot.ElementAt(0).Accounts.Add(new HdAccount
{
Index = 0,
Name = "account1",
HdPath = "m/44'/0'/0'",
ExtendedPubKey = accountKeys.ExtPubKey,
ExternalAddresses = new List <HdAddress> {
address
},
InternalAddresses = new List <HdAddress>()
});
var walletFeePolicy = new Mock <IWalletFeePolicy>();
walletFeePolicy.Setup(w => w.GetFeeRate(FeeType.Low.ToConfirmations()))
.Returns(new FeeRate(20000));
var walletManager = new WalletManager(this.LoggerFactory.Object, Network.Main, chain, NodeSettings.Default(), new Mock <WalletSettings>().Object, dataFolder,
walletFeePolicy.Object, new Mock <IAsyncLoopFactory>().Object, new NodeLifetime(), DateTimeProvider.Default);
var walletTransactionHandler = new WalletTransactionHandler(this.LoggerFactory.Object, walletManager, walletFeePolicy.Object, Network.Main);
walletManager.Wallets.Add(wallet);
var walletReference = new WalletAccountReference
{
AccountName = "account1",
WalletName = "myWallet1"
};
var context = CreateContext(walletReference, "password", destinationKeys.PubKey.ScriptPubKey, new Money(7500), FeeType.Low, 0);
var transactionResult = walletTransactionHandler.BuildTransaction(context);
var result = new Transaction(transactionResult.ToHex());
var expectedChangeAddressKeys = WalletTestsHelpers.GenerateAddressKeys(wallet, accountKeys.ExtPubKey, "1/0");
Assert.Single(result.Inputs);
Assert.Equal(addressTransaction.Id, result.Inputs[0].PrevOut.Hash);
Assert.Equal(2, result.Outputs.Count);
var output = result.Outputs[0];
Assert.Equal((addressTransaction.Amount - context.TransactionFee - 7500), output.Value);
Assert.Equal(expectedChangeAddressKeys.Address.ScriptPubKey, output.ScriptPubKey);
output = result.Outputs[1];
Assert.Equal(7500, output.Value);
Assert.Equal(destinationKeys.PubKey.ScriptPubKey, output.ScriptPubKey);
Assert.Equal(addressTransaction.Amount - context.TransactionFee, result.TotalOut);
Assert.NotNull(transactionResult.GetHash());
Assert.Equal(result.GetHash(), transactionResult.GetHash());
}