Catel.Test.Data.SuspensionContextFacts.PreventsDuplicates C# (CSharp) Метод

        public void PreventsDuplicates()
        {
            var suspensionContext = new SuspensionContext();

            suspensionContext.Add(null);
            suspensionContext.Add(string.Empty);
            suspensionContext.Add("A");
            suspensionContext.Add("A");

            var items = suspensionContext.Properties.ToList();

            Assert.AreEqual(2, items.Count);
            Assert.AreEqual(string.Empty, items[0]);
            Assert.AreEqual("A", items[1]);
        }
    }