Catel.Test.Collections.CollectionExtensionsFacts.TheAddRangeMethod.AddsItemsToFilledCollection C# (CSharp) Метод

            public void AddsItemsToFilledCollection()
            {
                var collection = new Collection<int> { 1, 2, 3 };
                var newList = new List<int> { 4, 5, 6 };

                collection.AddRange(newList);

                Assert.AreEqual(6, collection.Count);
                Assert.AreEqual(1, collection[0]);
                Assert.AreEqual(2, collection[1]);
                Assert.AreEqual(3, collection[2]);
                Assert.AreEqual(4, collection[3]);
                Assert.AreEqual(5, collection[4]);
                Assert.AreEqual(6, collection[5]);
            }