public void SortedEnumerable_LowerBound_ItemNotFoundInEmptySequence_ReturnsBitwiseComplementOf0()
{
IEnumerable <int> source = new int[] { };
ISortedEnumerable <int> sorted = source.AsSorted();
int result = sorted.LowerBound(3);
Assert.AreEqual(~0, result, "LowerBound should return the bitwise complement if not found.");
}
public void SortedEnumerable_LowerBound_ItemNotFoundPastSequence_ReturnsBitwiseComplement()
{
IEnumerable <int> source = new[] { 1, 2, 2, 4 };
ISortedEnumerable <int> sorted = source.AsSorted();
int result = sorted.LowerBound(5);
Assert.AreEqual(~4, result, "LowerBound should return the bitwise complement if not found.");
}
public void SortedEnumerable_LowerBound_ItemFound_ReturnsLowerBound()
{
IEnumerable <int> source = new[] { 1, 2, 2, 4 };
ISortedEnumerable <int> sorted = source.AsSorted();
int result = sorted.LowerBound(2);
Assert.AreEqual(1, result, "LowerBound should return the lower bound.");
}