public void CalculateSimilarityTest()
{
var calculator = new CosineSimilarityCalculator();
var token1 = MockRepository.GenerateStub <IToken>();
token1.Stub(t => t.Text)
.Return("a");
var token2 = MockRepository.GenerateStub <IToken>();
token2.Stub(t => t.Text)
.Return("b");
var token3 = MockRepository.GenerateStub <IToken>();
token3.Stub(t => t.Text)
.Return("c");
var bow1 = new Dictionary <IToken, TfIdf>
{
{ token1, new TfIdf(0.3, token1) },
{ token2, new TfIdf(0.1, token2) }
};
var bow2 = new Dictionary <IToken, TfIdf>
{
{ token2, new TfIdf(0.5, token2) },
{ token3, new TfIdf(0.2, token3) }
};
var processed1 = new ProcessedArticle(bow1);
var processed2 = new ProcessedArticle(bow2);
double similarity = calculator.CalculateSimilarity(processed1, processed2);
Assert.IsTrue(similarity.IsAbout(0.294, 0.001));
}
public void CalculateSimilariteArticle2NullExc()
{
var calculator = new CosineSimilarityCalculator();
var article = new ProcessedArticle(new Dictionary <IToken, TfIdf>());
calculator.CalculateSimilarity(article, null);
}