public IntervalTreePerfTest()
{
_ranges = Enumerable.Range(0, _count)
.ToCompositeRange(i => 4 * i - 2 * (i % 4), i => 1 + 4 * i + 2 * (i % 4), i => i.ToString());
_intersection = _ranges.SubRanges[1000].WithoutKey();
_intersectionCostin = new Interval <int>(_intersection.FromValue, _intersection.ToValue);
_tree = new IntervalTree <int, string>(_ranges);
_treeCostin = new IntervalTreeCostin <int, string>(
_ranges.SubRanges.Select(r => new KeyValuePair <IInterval <int>, string>(
new Interval <int>(r.FromValue, r.ToValue), r.Key))
);
}
public static void TestRangesCore(CompositeRange <int, string> ranges)
{
var tree = new IntervalTree <int, string>(ranges);
for (var i = ranges.ContainingRange.FromValue; i <= ranges.ContainingRange.ToValue; i++)
{
var overlapRange = Range.Create(i, i);
AssertSameOverlap(ranges, tree, overlapRange);
overlapRange = Range.Create(i - 1, i + 1);
AssertSameOverlap(ranges, tree, overlapRange);
overlapRange = Range.Create(i - 2, i + 2);
AssertSameOverlap(ranges, tree, overlapRange);
overlapRange = Range.Create(i - 10, i);
AssertSameOverlap(ranges, tree, overlapRange);
}
}
private static void AssertSameOverlap(CompositeRange <int, string> ranges, [NotNull] IntervalTree <int, string> tree, Range <int> overlapRange) =>
Assert.AreEqual(
ranges.SubRanges.Where(r => r.HasIntersection(overlapRange)).Join(";"),
tree.Intersect(overlapRange).Join(";"));
