public void TryGetUnion_IntervalsThatDoNotOverlapNorAreAdjacent_ReturnsNull()
{
IInterval <int> a = Interval.Create(10, 20);
IInterval <int> b = Interval.Create(25, 30);
var union = a.TryGetUnion(b);
Assert.That(union, Is.Null);
}
public void TryGetUnion_NullOther_ReturnsNull()
{
IInterval <int> a = Interval.Create(10, 20);
IInterval <int> b = null;
var union = a.TryGetUnion(b);
Assert.That(union, Is.Null);
}
public void TryGetUnion_NullInterval_ReturnsNull()
{
IInterval <int> a = null;
IInterval <int> b = Interval.Create(15, 25);
var union = a.TryGetUnion(b);
Assert.That(union, Is.Null);
}
public void TryGetUnion_AdjacentIntervals_ReturnsUnion()
{
IInterval <int> a = Interval.Create(10, 20);
IInterval <int> b = Interval.Create(20, 25);
var union = a.TryGetUnion(b);
var expected = Interval.Create(10, 25);
Assert.That(union, Is.EqualTo(expected).Using(IntervalEqualityComparer <int> .Default));
}