public void EqualRange_EmptyList(int value)
{
IReadOnlyList <Tuple <int> > list = new List <Tuple <int> >();
var range = CollectionExtensions.EqualRange(
list, value, Compare);
Assert.Equal(Enumerable.Empty <Tuple <int> >(), range);
}
[InlineData(1, -1, typeof(ArgumentOutOfRangeException))] // Negative count.
public void EqualRange_Preconditions(int index, int count, Type expectedException)
{
IReadOnlyList <string> list = new List <string> {
"10", "11", "12"
};
Assert.Throws(
expectedException,
() => CollectionExtensions.EqualRange(
list, index, count, "10", string.Compare));
}
public void EqualRange_FullRange(int value, int skip, int take)
{
IReadOnlyList <Tuple <int, int> > list = new List <Tuple <int, int> > {
Tuple.Create(11, 0),
Tuple.Create(13, 1),
Tuple.Create(13, 2),
Tuple.Create(13, 3),
Tuple.Create(15, 4)
};
var range = CollectionExtensions.EqualRange(
list, value, (l, r) => l.Item1.CompareTo(r));
Assert.Equal(list.Skip(skip).Take(take), range);
}