public void HttpParameterDescriptionCollection_Synchronized_GetEnumerator()
        {
            OperationDescription od1 = GetOperationDescription(typeof(MockService3), "SampleInOutMethod");
            OperationDescription od2 = GetOperationDescription(typeof(MockService3), "SampleMethod");
            MessagePartDescriptionCollection mpdColl = od1.Messages[0].Body.Parts;
            Assert.AreEqual(2, mpdColl.Count, "MessagePartDescriptionCollection should show 2 existing input parameters");

            MessagePartDescriptionCollection mpdColl2 = od2.Messages[0].Body.Parts;
            Assert.AreEqual(1, mpdColl2.Count, "MessagePartDescriptionCollection 2 should show 1 existing input parameters");

            // Pull out individual parts to test synching at item level
            MessagePartDescription mpd1 = mpdColl[0];
            MessagePartDescription mpd2 = mpdColl[1];

            // Use a MPD from a 2nd collection so we can add and remove it
            MessagePartDescription mpd3 = mpdColl2[0];

            // This ctor creates the synchronized form of the collection.   It should immediately reflect
            // the state of the MPD collection
            HttpParameterDescriptionCollection hpdColl = new HttpParameterDescriptionCollection(od1, isOutputCollection: false);
            Assert.IsNotNull(hpdColl, "Failed to create HttpParameterDescriptionCollection");
            Assert.AreEqual(2, hpdColl.Count, "HttpParameterDescriptionCollection should show 2 existing input parameters");

            // Extension method creates synched version of HPD from MPD's
            HttpParameterDescription hpd1 = mpd1.ToHttpParameterDescription();
            HttpParameterDescription hpd2 = mpd2.ToHttpParameterDescription();

            // Ensure the extension method created HPD's that point to the idential MPD
            Assert.AreEqual(mpd1, hpd1.MessagePartDescription, "HttParameterDescription 1 linked to wrong MessagePartDescription");
            Assert.AreEqual(mpd2, hpd2.MessagePartDescription, "HttParameterDescription 2 linked to wrong MessagePartDescription");

            // Keep one from 2nd collection
            HttpParameterDescription hpd3 = mpd3.ToHttpParameterDescription();

            // GetEnumerator
            IEnumerator<HttpParameterDescription> ie = hpdColl.GetEnumerator();
            object[] items = EnumeratorToArray(ie);
            AssertSame(hpdColl, items, "Generic enumerator");

            // Non-generic GetEnumerator
            IEnumerator iec = ((IEnumerable)hpdColl).GetEnumerator();
            Assert.IsNotNull(iec, "GetEnumerator failed");
            items = EnumeratorToArray(iec);
            AssertSame(hpdColl, items, "Nongeneric enumerator");
        }
        public void HttpParameterDescriptionCollection_Unsynchronized_GetEnumerator()
        {
            HttpParameterDescriptionCollection coll = new HttpParameterDescriptionCollection();
            HttpParameterDescription hpd1 = new HttpParameterDescription()
            {
                Name = "First",
                Namespace = "FirstNS",
                Index = 0,
                ParameterType = typeof(string)
            };
            HttpParameterDescription hpd2 = new HttpParameterDescription()
            {
                Name = "Second",
                Namespace = "SecondNS",
                Index = 1,
                ParameterType = typeof(int)
            };
            HttpParameterDescription hpd3 = new HttpParameterDescription()
            {
                Name = "Third",
                Namespace = "ThirdNS",
                Index = 2,
                ParameterType = typeof(double)
            };

            coll.Add(hpd1);
            coll.Add(hpd2);

            // GetEnumerator
            IEnumerator<HttpParameterDescription> ie = coll.GetEnumerator();
            Assert.IsNotNull(ie, "GetEnumerator failed");
            object[] items = EnumeratorToArray(ie);
            AssertSame(coll, items, "Generic enumerator");

            // Non-generic GetEnumerator
            IEnumerator iec = ((IEnumerable)coll).GetEnumerator();
            Assert.IsNotNull(iec, "GetEnumerator failed");
            items = EnumeratorToArray(iec);
            AssertSame(coll, items, "Non-generic enumerator");
        }