public void ShouldCalculateEffectivenessWithNoInvertedIndex()
{
IDictionary indexes = new HashDictionary();
BetweenFilter filter = new BetweenFilter(m_extractor, 10, 20);
var effectiveness = filter.CalculateEffectiveness(indexes, s_setKeys);
Assert.AreEqual(ExtractorFilter.EVAL_COST * s_setKeys.Count, effectiveness);
}
public void ShouldApplyIndexWhenUpperBoundIsNull()
{
IDictionary indexes = new HashDictionary();
ICollection keys = new HashSet(s_setKeys);
BetweenFilter filter = new BetweenFilter(m_extractor, 10, null);
var result = filter.ApplyIndex(indexes, keys);
Assert.IsNull(result);
Assert.AreEqual(keys.Count, 0);
}
public void ShouldApplyIndexWhenNoMatchingIndexPresent()
{
IDictionary indexes = new HashDictionary();
ICollection keys = new HashSet(s_setKeys);
BetweenFilter filter = new BetweenFilter(m_extractor, 10, 20);
var result = filter.ApplyIndex(indexes, keys);
Assert.AreSame(filter, result);
Assert.AreEqual(s_setKeys, keys);
}
public void ShouldCalculateEffectivenessWhenInvertedIndexIsPlainSet()
{
IDictionary indexes = new HashDictionary();
indexes[m_extractor] = s_sortedIndex;
BetweenFilter filter = new BetweenFilter(m_extractor, 10, 20);
var effectiveness = filter.CalculateEffectiveness(indexes, s_setKeys);
Assert.AreEqual(s_sortedIndex.IndexContents.Count, effectiveness);
}
public void ShouldApplyIndexWhenUnsortedIndexPresent()
{
IDictionary indexes = new HashDictionary();
ICollection keys = new HashSet(s_setKeys);
BetweenFilter filter = new BetweenFilter(m_extractor, 10, 20);
indexes[m_extractor] = s_unsortedIndex;
var result = filter.ApplyIndex(indexes, keys);
Assert.IsNull(result);
Assert.IsTrue(s_setKeysTenToTwenty.Equals(keys));
}
public void ShouldSerializeBetweenFilter()
{
BetweenFilter filter = new BetweenFilter(m_extractor, 10, 20, true, true);
Stream stream = new MemoryStream();
m_serializer.Serialize(new DataWriter(stream), filter);
stream.Position = 0;
var result = m_serializer.Deserialize(new DataReader(stream));
Assert.IsInstanceOf(typeof(BetweenFilter), result);
BetweenFilter resultFilter = (BetweenFilter)result;
Assert.AreEqual(resultFilter.ValueExtractor, filter.ValueExtractor);
Assert.AreEqual(resultFilter.LowerBound, filter.LowerBound);
Assert.AreEqual(resultFilter.UpperBound, filter.UpperBound);
Assert.AreEqual(resultFilter.IsLowerBoundInclusive, filter.IsLowerBoundInclusive);
Assert.AreEqual(resultFilter.IsUpperBoundInclusive, filter.IsUpperBoundInclusive);
}
public void ShouldEvaluateValueEqualToUpperBoundToFalseIfUpperBoundExclusive()
{
BetweenFilter filter = new BetweenFilter(m_extractor, 10, 20, true, false);
Assert.IsFalse(filter.Evaluate(20));
}
public void ShouldEvaluateValueEqualToUpperBoundToTrue()
{
BetweenFilter filter = new BetweenFilter(m_extractor, 10, 20);
Assert.IsTrue(filter.Evaluate(20));
}
public void ShouldEvaluateValueHigherThanRangeToFalse()
{
BetweenFilter filter = new BetweenFilter(m_extractor, 10, 20);
Assert.IsFalse(filter.Evaluate(21));
}
public void ShouldForceLowerBoundExcludedIfLowerBoundIsNull()
{
BetweenFilter filter = new BetweenFilter(m_extractor, null, 20, true, true);
Assert.IsFalse(filter.IsLowerBoundInclusive);
}
public void ShouldEvaluateAsFalseIfUpperBoundIsNull()
{
BetweenFilter filter = new BetweenFilter(m_extractor, 10, null, true, false);
Assert.IsFalse(filter.Evaluate(12));
}
public void ShouldEvaluateNullAsFalse()
{
BetweenFilter filter = new BetweenFilter(m_extractor, 10, 20, true, false);
Assert.IsFalse(filter.Evaluate(null));
}