public void TestIntervalPosition(IntInterval interval, int value)
{
int first = interval.First;
int last = interval.Last;
checked
{
IntIntervalPosition position = interval.PositionOf(value);
switch (position)
{
case IntIntervalPosition.Less:
Assert.Less(value, first);
break;
case IntIntervalPosition.First:
Assert.AreEqual(value, first);
break;
case IntIntervalPosition.StrictlyInside:
Assert.IsTrue(last > value && value > first);
break;
case IntIntervalPosition.Last:
Assert.AreEqual(value, last);
break;
case IntIntervalPosition.Greater:
Assert.Greater(value, last);
break;
case IntIntervalPosition.Undefined:
Assert.IsTrue(interval.IsEmpty);
break;
default:
Assert.Fail("Invalid interval position result");
break;
}
if (position != IntIntervalPosition.Undefined)
{
Assert.AreEqual(
last >= value && value >= first,
(position & IntIntervalPosition.InsideMask) != 0);
Assert.AreEqual(
last < value || value < first,
(position & IntIntervalPosition.OutsideMask) != 0);
Assert.AreEqual(
last == value || value == first,
(position & IntIntervalPosition.EdgeMask) != 0);
}
}
}
