public async Task BuildSingleTransactionAsync_WithSingleUnspentOutput_BuildsExpectedTx()
{
var fromAddr = "Tso2MVTUeVrjHTBFedFhiyM7yVTbieqp91h";
var toAddr = "TsntCvtbzaDtx4DwGehWcM3Ydb6Muc79YbV";
// Send 1 decred out of 2 total
var amountToSend = 100000000;
var unspentOutput = new UnspentTxOutput()
{
BlockHeight = 0,
BlockIndex = 0,
Hash = HexUtil.FromByteArray(new byte[32]),
OutputIndex = 1,
OutputValue = 2 * 100000000,
OutputVersion = 0,
Tree = 0,
PkScript = new byte[0]
};
_mockTxRepo.Setup(m => m.GetConfirmedUtxos(fromAddr)).ReturnsAsync(new[] { unspentOutput });
_mockTxRepo.Setup(m => m.GetMempoolUtxos(fromAddr)).ReturnsAsync(new[] { unspentOutput });
_mockDcrdClient.Setup(m => m.EstimateFeeAsync(It.IsAny <int>())).ReturnsAsync(0.001m);
_mockBroadcastedOutpointRepo.Setup(m => m.GetAsync($"{unspentOutput.Hash}:1"))
.ReturnsAsync((BroadcastedOutpoint)null);
var txFeeService = new TransactionFeeService(_mockDcrdClient.Object);
var subject = new TransactionBuilder(
txFeeService,
_mockTxRepo.Object,
_mockBroadcastedOutpointRepo.Object
);
var request = new BuildSingleTransactionRequest
{
Amount = amountToSend.ToString(),
AssetId = "DCR",
FromAddress = fromAddr,
ToAddress = toAddr,
IncludeFee = true
};
var result = await subject.BuildSingleTransactionAsync(request, 1);
var transaction = Transaction.Deserialize(HexUtil.ToByteArray(result.TransactionContext));
var expectedFee = txFeeService.CalculateFee(100000, 1, 2, 1);
Assert.Equal(expectedFee, 2 * 100000000 - transaction.Outputs.Sum(o => o.Amount));
Assert.Equal(2, transaction.Outputs.Length);
// Sent amount - fee
Assert.Equal(1, transaction.Outputs.Count(o => o.Amount + expectedFee == 100000000));
// Change
Assert.Equal(1, transaction.Outputs.Count(o => o.Amount == 100000000));
}
public void CalculateFees()
{
while (TransactionRepository.HasUnhandledTransactions())
{
var transaction = TransactionRepository.GetTransaction();
if (transaction == null)
{
Console.WriteLine();
continue;
}
TransactionFeeService.CalculateTransactionFee(transaction);
InvoiceFeeService.CalculateInvoiceFee(transaction);
Console.WriteLine($"{transaction.Date:d} {transaction.MerchantName,-8} {transaction.Fee:f2}");
}
}
