public void TestGoodMerge()
        {
            ParameterParser old = new ParameterParser();

            old.AddParser(typeof(BarParser));
            ParameterParser nw = new ParameterParser();

            nw.MergeIn(old);
            Bar f = (Bar)nw.Parse(typeof(Foo), "woot");

            Assert.AreEqual(f.s, "woot");
        }
        public void TestBadMerge()
        {
            string msg = null;

            try
            {
                ParameterParser old = new ParameterParser();
                old.AddParser(typeof(BarParser));
                ParameterParser nw = new ParameterParser();
                nw.AddParser(typeof(FooParser));
                nw.MergeIn(old);
                msg = "Conflict detected when merging parameter parsers! To parse org.apache.reef.tang.implementation.java.TestParameterParser$Foo I have a: TestParameterParser$FooParser the other instance has a: TestParameterParser$BarParser";
            }
            catch (ArgumentException)
            {
            }
            Assert.IsNull(msg);
        }