public void TestThatWhenThereIsNoDifferenceBetweenVectorsGetHammingDistanceReturns0()
{
var vector1 = new List <int> {
0, 0, 1, 0, 1, 1, 0
};
var vector2 = new List <int> {
0, 0, 1, 0, 1, 1, 0
};
var result = hammingDistance.GetHammingDistance(vector1, vector2);
Assert.AreEqual(0, result);
}
public void TestZeroDistanceDifferentSources(string source1, string source2)
{
HammingDistance hd = new HammingDistance();
double distance = hd.GetHammingDistance(source1, source2);
Assert.That(distance, Is.EqualTo(0));
}
public void TestZeroDistanceSimilarSources(byte[] data1, byte[] data2)
{
HammingDistance hd = new HammingDistance();
double distance = hd.GetHammingDistance(data1, data2);
Assert.That(distance, Is.EqualTo(0));
}
public void TestDistanceByFiles(string filePath1, string filePath2)
{
HammingDistance hd = new HammingDistance();
double distance = hd.GetHammingDistance(filePath1, filePath2);
Assert.That(distance, Is.EqualTo(2));
}
public void TestDistanceByStrings(string source1, string source2)
{
HammingDistance hd = new HammingDistance();
double distance = hd.GetHammingDistance(source1, source2);
Assert.That(distance, Is.EqualTo(2));
}
public static int GetDistances(string s, string t, FuzzyAlgorithm algorithm = FuzzyAlgorithm.LevenshteinDistance)
{
int distance = 100000;
switch (algorithm)
{
case FuzzyAlgorithm.LevenshteinDistance:
distance = LevenshteinDistance.GetLevenshteinDistance(s, t);
break;
case FuzzyAlgorithm.DamerauLevenshteinDistance:
distance = DamerauLevenshteinDistance.GetDamerauLevenshteinDistance(s, t);
break;
case FuzzyAlgorithm.HammingDistance:
distance = HammingDistance.GetHammingDistance(s, t);
break;
default:
distance = LevenshteinDistance.GetLevenshteinDistance(s, t);
break;
}
return(distance);
}
public void TestDifferentLengthSource(byte[] data1, byte[] data2)
{
HammingDistance hd = new HammingDistance();
double distance = hd.GetHammingDistance(data1, data2);
Assert.That(hd.SourceStatus, Is.EqualTo(Const.UNEQUAL_LENGTH));
Assert.That(distance, Is.Not.EqualTo(0));
}
public void TestOnlyOneSource(string source1)
{
HammingDistance hd = new HammingDistance();
double distance = hd.GetHammingDistance(source1, null);
Assert.That(hd.SourceStatus, Is.EqualTo(Const.INSUFFICIENT_SOURCE));
Assert.That(distance, Is.Not.EqualTo(0));
}
public void TestFileNotFound(string source1, string source2)
{
HammingDistance hd = new HammingDistance();
double distance = hd.GetHammingDistance(source1, source2);
Assert.That(hd.SourceStatus, Is.EqualTo(Const.FILE_NOT_FOUND));
Assert.That(distance, Is.Not.EqualTo(0));
}
/// <summary>
/// Show simple main menu
/// </summary>
/// <param name="source1">data from first argument parameters</param>
/// <param name="source2">data from second argument parameters</param>
/// <returns>TRUE if user want to do another calculation
/// FALSE if user want to quit the application</returns>
private static bool DisplayMenu(string source1, string source2)
{
//show the menu
Console.WriteLine("HAMMING DISTANCE CALCULATOR");
Console.WriteLine("");
Console.WriteLine("Input Sources");
Console.WriteLine("");
Console.WriteLine("*. Input String Manually"); // get data directly from keyboard input
Console.WriteLine("*. Input from Full Path of Text File (Must text file - *.txt)"); // get data from text file content
Console.WriteLine("*. Input from Full Path of File (any file format except text file)"); // get data from converting the whole file into byte array
Console.WriteLine("");
// No arguments, set the sources based on user input
if (string.IsNullOrEmpty(source1) && string.IsNullOrEmpty(source2))
{
Console.Write("Input Source 1 : ");
source1 = Console.ReadLine();
Console.Write("Input Source 2 : ");
source2 = Console.ReadLine();
}
else
{
Console.WriteLine("Input Source 1 : {0}", source1);
Console.WriteLine("Input Source 1 : {0}", source2);
}
if (!string.IsNullOrEmpty(source1) && !string.IsNullOrEmpty(source2))
{
// init hamming distance, calculate based by sources
var HammingDistanceObject = new HammingDistance();
double distance = HammingDistanceObject.GetHammingDistance(source1, source2);
// distance should be >= 0
if (distance >= 0)
{
Console.WriteLine("\nDistance is : " + distance);
Console.WriteLine("Calc. Time is : " + HammingDistanceObject.ProcessTime.Duration());
}
else // else, found some error during calculate the distance
{
Console.WriteLine("\nGet Hamming Distance Failed!");
Console.WriteLine("Source Status : " + HammingDistanceObject.SourceStatus);
}
}
else
{
Console.WriteLine("\nInsufficient arguments");
}
// press key to do another calculation, otherwise quite application
Console.Write("\nPress ENTER to retry, otherwise quit application..");
if (Console.ReadKey().Key != ConsoleKey.Enter)
{
return(false);
}
return(true);
}
public void TestZeroDistanceByHugeFiles(string filePath1, string filePath2, int fileSizeInMB)
{
//Check if files is exist with the desired size
FileValidator(filePath1, filePath2, fileSizeInMB);
// init object and do calculation
HammingDistance hd = new HammingDistance();
double distance = hd.GetHammingDistance(filePath1, filePath2);
// ideally, the timespan for calculation is 1% per size of file.
// e.g if size is 1000 mbs the timespan should be less than 10 seconds
// int desiredTime = fileSizeInMB / 100;
int desiredTime = fileSizeInMB / 50; // to be safe, create 2% instead
Assert.That(distance, Is.GreaterThanOrEqualTo(0));
Assert.That(hd.ProcessTime, Is.LessThan(TimeSpan.FromSeconds(desiredTime)));
}
