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

        public void TestIsolatedElements()
        {
            IntervalSet s = new IntervalSet();
            s.Add(1);
            s.Add('z');
            s.Add('\uFFF0');
            String expecting = "{1, 122, 65520}";
            Assert.AreEqual(s.ToString(), expecting);
        }