private void btnTestHashesFromFile_Click(object sender, EventArgs e)
{
string filename = FormHelper.OpenFileDlg(FormHelper.FiletypeFilters.SequenceFiles);
if (string.IsNullOrWhiteSpace(filename))
{
return;
}
ShowWorkingAnimation();
var testHashingElements = Task.Factory.StartNew(() =>
{
TimeSpan filterAddTimeTotal = TimeSpan.Zero;
Stopwatch totalRuntimeTimer = Stopwatch.StartNew();
Stopwatch filterAddTimer = Stopwatch.StartNew();
totalRuntimeTimer.Restart();
string[] lines = File.ReadAllLines(filename);
int counter = 0;
int max = lines.Length - 1;
int membershipCorrect = 0;
int membershipIncorrect = 0;
bool filterContains = false;
while (counter < max)
{
filterAddTimer.Restart();
filterContains = filter.ContainsElement(lines[counter]);
filterAddTimeTotal = filterAddTimeTotal.Add(filterAddTimer.Elapsed);
if (filterContains)
{
membershipCorrect += 1;
}
else
{
membershipIncorrect += 1;
}
counter++;
}
int randomNumber = rand.Next(50000);
ByteGenerator.SequenceGenerator randomGenerator = new ByteGenerator.SequenceGenerator(8, counter, randomNumber);
int randomCounter = 0;
int falsePositiveCorrect = 0;
int falsePositiveIncorrect = 0;
while (randomCounter < max)
{
string nextRandom = randomGenerator.GetNext();
if (!lines.Contains(nextRandom))
{
filterAddTimer.Restart();
filterContains = filter.ContainsElement(nextRandom);
filterAddTimeTotal = filterAddTimeTotal.Add(filterAddTimer.Elapsed);
if (filterContains)
{
falsePositiveIncorrect += 1;
}
else
{
falsePositiveCorrect += 1;
}
randomCounter++;
}
}
TimeSpan totalRuntimeTotal = totalRuntimeTimer.Elapsed;
int totalCounter = counter + randomCounter;
long ticks = filterAddTimeTotal.Ticks / totalCounter;
TimeSpan averageAddTime = new TimeSpan(ticks);
double membershipRate = (double)membershipCorrect / (double)membershipIncorrect;
double falsePositiveRate = (double)falsePositiveIncorrect / (double)falsePositiveCorrect;
if (double.IsInfinity(membershipRate))
{
membershipRate = 100.0d;
}
if (double.IsInfinity(falsePositiveRate))
{
falsePositiveRate = 100.0d;
}
string correctnessReport = string.Format("Membership Correct/Incorrect: {0}/{1} ({2:0.00}%); False Positives: {3}/{4} ({5:0.00}%)", membershipCorrect, membershipIncorrect, membershipRate, falsePositiveIncorrect, falsePositiveCorrect, falsePositiveRate);
string timersReport =
$"Total runtime: {FormHelper.FormatTimeSpan(totalRuntimeTotal)} (Contains elements: {FormHelper.FormatTimeSpan(filterAddTimeTotal)} ({FormHelper.FormatTimeSpan(averageAddTime)} avg.))";
SetControlText(label5, correctnessReport);
SetControlText(label6, timersReport);
});
var hideLoadingAnimation = testHashingElements.ContinueWith((task) => HideWorkingAnimation());
}
