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

        public void TestNotSet()
        {
            IntervalSet vocabulary = IntervalSet.Of(1, 1000);
            IntervalSet s = IntervalSet.Of(50, 60);
            s.Add(5);
            s.Add(250, 300);
            String expecting = "{1..4, 6..49, 61..249, 301..1000}";
            String result = (s.Complement(vocabulary)).ToString();
            Assert.AreEqual(expecting, result);
        }