private void Act(StatementModel testData)
{
var subject = new Mapper_TransactionSetDto_StatementModel(
new FakeLogger(),
new Mapper_TransactionDto_Transaction(
new InMemoryAccountTypeRepository(),
new BucketBucketRepoAlwaysFind(),
new InMemoryTransactionTypeRepository()));
Result = subject.ToDto(testData);
}
private static long CalculateTransactionCheckSum(TransactionSetDto setDto)
{
long txnCheckSum = 37; // prime
unchecked
{
txnCheckSum *= 397; // also prime
foreach (var txn in setDto.Transactions)
{
txnCheckSum += (long)txn.Amount * 100;
txnCheckSum *= 829;
}
}
return(txnCheckSum);
}
private void ValidateChecksumIntegrity(TransactionSetDto transactionSet)
{
var calcTxnCheckSum = CalculateTransactionCheckSum(transactionSet);
// Ignore a checksum of 1, this is used as a special case to bypass transaction checksum test. Useful for manual manipulation of the statement csv.
if (transactionSet.Checksum > 1 && transactionSet.Checksum != calcTxnCheckSum)
{
this.logger.LogError(l =>
l.Format(
"BudgetAnalyser statement file being loaded has an incorrect checksum of: {0}, transactions calculate to: {1}",
transactionSet.Checksum, calcTxnCheckSum));
throw new StatementModelChecksumException(
calcTxnCheckSum.ToString(CultureInfo.InvariantCulture),
string.Format(
CultureInfo.CurrentCulture,
"The statement being loaded, does not match the internal checksum. {0} {1}",
calcTxnCheckSum,
transactionSet.Checksum));
}
}
private TransactionSetDto CreateTransactionSet(string fileName, List <string> allLines, List <TransactionDto> transactions)
{
var header = allLines[0];
if (string.IsNullOrWhiteSpace(header))
{
throw new DataFormatException("The Budget Analyser file does not have a valid header row.");
}
string[] headerSplit = header.Split(',');
var transactionSet = new TransactionSetDto
{
Checksum = this.importUtilities.FetchLong(headerSplit, 3),
StorageKey = fileName,
LastImport = this.importUtilities.FetchDate(headerSplit, 4),
Transactions = transactions,
VersionHash = this.importUtilities.FetchString(headerSplit, 1)
};
return(transactionSet);
}
private static void WriteHeader(StreamWriter writer, TransactionSetDto setDto)
{
writer.WriteLine("VersionHash,{0},TransactionCheckSum,{1},{2}", setDto.VersionHash, setDto.Checksum, setDto.LastImport.ToString("O", CultureInfo.InvariantCulture));
}
