public void ShouldReturnNullIfAllMatchScoresAreZero()
{
var fuzzyItem = new FuzzyItem <object>(new object());
var fuzzyList = new List <IFuzzyItem <object> > {
fuzzyItem
};
var bestMatch = fuzzyList.BestMatch();
Assert.Null(bestMatch);
}
public void ShouldNotBeAbleToIgnoreFailedCriticalCriteria()
{
var fuzzyList = new List <IFuzzyItem <object> >();
var fuzzyItem = new FuzzyItem <object>(new object());
fuzzyList.Add(fuzzyItem);
var trueCriteria = GetMockCriteria(true, CriteriaType.Standard, 2);
var failedCriteria = GetMockCriteria(false, CriteriaType.Critical, 1);
// Boost the first item results so that the best match
// should be biased towards the first item
fuzzyItem.Test(trueCriteria.Object);
// Make both items pass the first test
var secondItem = new FuzzyItem <object>(new object());
fuzzyList.Add(secondItem);
fuzzyList.AddCriteria(trueCriteria.Object);
// The first item should be the best match at this point
var bestMatch = fuzzyList.BestMatch();
Assert.Same(bestMatch, fuzzyItem);
// Remove the second item from the list to avoid the
// failed critical match
fuzzyList.Remove(secondItem);
// The failed critical criteria should eliminate
// the first match as the best possible match
fuzzyList.AddCriteria(failedCriteria.Object);
// Reinsert the second value into the list
// so that it can be chosen as the best match
fuzzyList.Add(secondItem);
// Run the test again
bestMatch = fuzzyList.BestMatch();
// The second item should be the best possible match,
// and the first item should be ignored
// because of the failed criteria
Assert.Same(bestMatch, secondItem);
}
public void ShouldBeAbleToIgnoreFailedOptionalCriteria()
{
// The criteria will be set up to fail by default
var falseCriteria = GetMockCriteria(false, CriteriaType.Optional, 1);
// Use the true criteria as the control result
var trueCriteria = GetMockCriteria(true, CriteriaType.Optional, 1);
var fuzzyList = new List <IFuzzyItem <object> >();
var fuzzyItem = new FuzzyItem <object>(new object());
fuzzyList.Add(fuzzyItem);
// Apply the criteria
fuzzyList.AddCriteria(trueCriteria.Object);
fuzzyList.AddCriteria(falseCriteria.Object);
// The score must be left unchanged
// since the criteria is optional and
// the failed predicate does not count
// against the current fuzzy item.
Assert.Equal(1.0, fuzzyItem.Confidence);
}
public void ShouldBeAbleToIgnoreFailedOptionalCriteria()
{
// The criteria will be set up to fail by default
Mock<ICriteria<object>> falseCriteria = GetMockCriteria(false, CriteriaType.Optional, 1);
// Use the true criteria as the control result
Mock<ICriteria<object>> trueCriteria = GetMockCriteria(true, CriteriaType.Optional, 1);
var fuzzyList = new List<IFuzzyItem<object>>();
var fuzzyItem = new FuzzyItem<object>(new object());
fuzzyList.Add(fuzzyItem);
// Apply the criteria
fuzzyList.AddCriteria(trueCriteria.Object);
fuzzyList.AddCriteria(falseCriteria.Object);
// The score must be left unchanged
// since the criteria is optional and
// the failed predicate does not count
// against the current fuzzy item.
Assert.AreEqual(fuzzyItem.Confidence, 1);
}
public void ShouldReturnNullIfAllMatchScoresAreZero()
{
var fuzzyItem = new FuzzyItem<object>(new object());
var fuzzyList = new List<IFuzzyItem<object>> { fuzzyItem };
var bestMatch = fuzzyList.BestMatch();
Assert.IsNull(bestMatch);
}
public void ShouldNotBeAbleToIgnoreFailedCriticalCriteria()
{
var fuzzyList = new List<IFuzzyItem<object>>();
var fuzzyItem = new FuzzyItem<object>(new object());
fuzzyList.Add(fuzzyItem);
var trueCriteria = GetMockCriteria(true, CriteriaType.Standard, 2);
var failedCriteria = GetMockCriteria(false, CriteriaType.Critical, 1);
// Boost the first item results so that the best match
// should be biased towards the first item
fuzzyItem.Test(trueCriteria.Object);
// Make both items pass the first test
var secondItem = new FuzzyItem<object>(new object());
fuzzyList.Add(secondItem);
fuzzyList.AddCriteria(trueCriteria.Object);
// The first item should be the best match at this point
var bestMatch = fuzzyList.BestMatch();
Assert.AreSame(bestMatch, fuzzyItem);
// Remove the second item from the list to avoid the
// failed critical match
fuzzyList.Remove(secondItem);
// The failed critical criteria should eliminate
// the first match as the best possible match
fuzzyList.AddCriteria(failedCriteria.Object);
// Reinsert the second value into the list
// so that it can be chosen as the best match
fuzzyList.Add(secondItem);
// Run the test again
bestMatch = fuzzyList.BestMatch();
// The second item should be the best possible match,
// and the first item should be ignored
// because of the failed criteria
Assert.AreSame(bestMatch, secondItem);
}