public void Find_PatternDoesNotExistInText_NoResultExists(string text, string pattern)
{
var array = new SuffixArray(_encoder.GetBytes(text));
array.Initialize();
var results = array.Find(_encoder.GetBytes(pattern));
Assert.AreEqual(0, results.OccurrencesCount);
}
public void Find_arrayIsNotInitialized_ThrowInvalidOperationException()
{
const string text = "banana";
var array = new SuffixArray(_encoder.GetBytes(text));
Assert.Throws<InvalidOperationException>(() => array.Find(_encoder.GetBytes("an")));
}
public void Find_an()
{
const string text = "banana";
var array = new SuffixArray(_encoder.GetBytes(text));
array.Initialize();
var results = array.Find(_encoder.GetBytes("an"));
Assert.AreEqual(2, results.OccurrencesCount);
Assert.AreEqual(1, results.Indices[0]);
Assert.AreEqual(3, results.Indices[1]);
}
public void Initialize_ReturnComparisonsCount()
{
const string text = "banana";
var array = new SuffixArray(_encoder.GetBytes(text));
var comparisonsCount = array.Initialize();
Assert.Greater(comparisonsCount, 0);
}
public void Find_sba()
{
const string text = "sasbasaasba";
var array = new SuffixArray(_encoder.GetBytes(text));
array.Initialize();
var results = array.Find(_encoder.GetBytes("sba"));
Assert.AreEqual(2, results.OccurrencesCount);
}
public void Find_PatternEqualText_ReturnIndexZero(string s)
{
var array = new SuffixArray(_encoder.GetBytes(s));
array.Initialize();
var results = array.Find(_encoder.GetBytes(s));
Assert.AreEqual(0, results.Indices[0]);
}
public void Find_PatternEqualText_OneResultExists(string s)
{
var array = new SuffixArray(_encoder.GetBytes(s));
array.Initialize();
var results = array.Find(_encoder.GetBytes(s));
Assert.AreEqual(1, results.OccurrencesCount);
}
static void Main(string[] args)
{
var encoder = new ByteStringEncoder();
var operationTimeTester = new OperationTimeTester();
var text = File.ReadAllBytes(@"..\doc\pan_wolodyjowski_line_kopia.t");
var pattern = File.ReadAllBytes(@"..\doc\Pattern_kopia.t");
var patternString = encoder.GetString(pattern);
var patternSize = pattern.Length;
var textSize = text.Length;
var brute = new BrutePatternSearcher();
var result = operationTimeTester.Test(brute.Search, pattern, text);
Show("Pan Wołodyjowski", textSize, "Brute", patternString, patternSize, result);
Pause();
var rabinkarpModulo13 = new RabinKarpPatternSearcher(new HashingService(256, 13));
result = operationTimeTester.Test(rabinkarpModulo13.Search, pattern, text);
Show("Pan Wołodyjowski", textSize, "Rabin-Karp with hashing modulo 13", patternString, patternSize, result);
Pause();
var rabinkarpModulo101 = new RabinKarpPatternSearcher(new HashingService(256, 101));
result = operationTimeTester.Test(rabinkarpModulo101.Search, pattern, text);
Show("Pan Wołodyjowski", textSize, "Rabin-Karp with hashing modulo 101", patternString, patternSize, result);
Pause();
var rabinkarpModulo2147483647 = new RabinKarpPatternSearcher(new HashingService(256, 2147483647));
result = operationTimeTester.Test(rabinkarpModulo2147483647.Search, pattern, text);
Show("Pan Wołodyjowski", textSize, "Rabin-Karp with hashing modulo 2147483647", patternString, patternSize, result);
Pause();
var suffixTree = new SuffixTree(text);
System.Console.Out.WriteLine("Suffix tree building start...");
var suffixTreeBuildingResult = operationTimeTester.Test(suffixTree.Initialize);
System.Console.Out.WriteLine("Comparisons count: {0}", suffixTreeBuildingResult.OperationResult);
System.Console.Out.WriteLine("Suffix tree building finished.");
System.Console.Out.WriteLine("Elapsed: {0}", suffixTreeBuildingResult.Elapsed);
System.Console.Out.WriteLine();
Pause();
result = operationTimeTester.Test(suffixTree.Find, pattern);
Show("Pan Wołodyjowski", textSize, "Suffix Tree", patternString, patternSize, result);
Pause();
var suffixArray = new SuffixArray(text);
System.Console.Out.WriteLine("Suffix array building start...");
var suffixArrayBuildingResult = operationTimeTester.Test(suffixArray.Initialize);
System.Console.Out.WriteLine("Comparisons count: {0}", suffixArrayBuildingResult.OperationResult);
System.Console.Out.WriteLine("Suffix array building finished.");
System.Console.Out.WriteLine("Elapsed: {0}", suffixArrayBuildingResult.Elapsed);
System.Console.Out.WriteLine();
Pause();
result = operationTimeTester.Test(suffixArray.Find, pattern);
Show("Pan Wołodyjowski", textSize, "Suffix Array", patternString, patternSize, result);
Pause();
}
