Antlr4.Runtime.Test.TestIntervalSet.TestSubtractOfWackyRange C# (CSharp) Method

        public void TestSubtractOfWackyRange()
        {
            IntervalSet s = IntervalSet.Of(0, 113);
            s.Add(115, 200);
            IntervalSet s2 = IntervalSet.Of(0, 115);
            s2.Add(117, 200);
            String expecting = "116";
            String result = (s.Subtract(s2)).ToString();
            Assert.AreEqual(expecting, result);
        }