private static void HandleRunCommand()
{
try
{
switch (m_useCache)
{
case true:
switch (m_command)
{
case Command.TF:
m_result = m_tfidf.CacheCalculateTF(m_fileName, m_term);
break;
case Command.IDF:
m_result = m_tfidf.CacheCalculateIDF(m_term);
break;
case Command.TFIDF:
m_result = m_tfidf.CacheCalculateTFIDF(m_fileName, m_term);
break;
default:
break;
}
break;
case false:
switch (m_command)
{
case Command.TF:
m_result = TFIDF.CalculateTF(m_path, m_fileName, m_term);
break;
case Command.IDF:
m_result = TFIDF.CalculateIDF(m_path, m_term);
break;
case Command.TFIDF:
m_result = TFIDF.CalculateTFIDF(m_path, m_fileName, m_term);
break;
default:
break;
}
break;
default:
break;
}
m_level = MenuLevel.ShowResult;
}
catch (Exception e)
{
Console.WriteLine("error: {0}", e.Message);
Console.WriteLine("press any key to try again");
Console.ReadKey();
m_level = MenuLevel.SelectCommand;
}
}
public void TermNotInDocuments()
{
double greenIdf = Math.Round(TFIDF.CalculateIDF(m_path, "green"), 5);
TFIDF tfidf = new TFIDF(m_path);
double greenIdfCached = Math.Round(tfidf.CacheCalculateIDF("green"), 5);
double expectedIDF = Math.Round(1.58496250072116, 5);
Assert.AreEqual(expectedIDF, greenIdf, "CalculateIDF returns incorrect value");
Assert.AreEqual(expectedIDF, greenIdfCached, "CacheCalculateIDF returns incorrect value");
}
public void TermInAllDocumentsIDFTest()
{
double heroIdf = TFIDF.CalculateIDF(m_path, "of");
TFIDF tfidf = new TFIDF(m_path);
double heroIdfCached = tfidf.CacheCalculateIDF("of");
double expectedIDF = 0;
Assert.AreEqual(expectedIDF, heroIdf, "CalculateIDF returns incorrect value");
Assert.AreEqual(expectedIDF, heroIdfCached, "CacheCalculateIDF returns incorrect value");
}
public void TermInSomeDocumentsIdfTest()
{
double heroIdf = TFIDF.CalculateIDF(m_path, "hero");
TFIDF tfidf = new TFIDF(m_path);
double heroIdfCached = tfidf.CacheCalculateIDF("hero");
double expectedIDF = Math.Log((double)3 / (double)2, 2);
Assert.AreEqual(expectedIDF, heroIdf, "CalculateIDF returns incorrect value");
Assert.AreEqual(expectedIDF, heroIdfCached, "CacheCalculateIDF returns incorrect value");
}
public void EmptyDirectoryTest()
{
string emptyDirectoryPath = m_path + "empty Directory";
Directory.CreateDirectory(emptyDirectoryPath);
double idf = TFIDF.CalculateIDF(emptyDirectoryPath, "term");
TFIDF tfidf = new TFIDF(emptyDirectoryPath);
double cacheIdf = tfidf.CacheCalculateIDF("term");
Assert.AreEqual(0, idf);
Assert.AreEqual(0, cacheIdf);
Directory.Delete(emptyDirectoryPath);
}
