public void Clearできる() { linkedList = new ShosLinkedList1 <int> { 10, 70, 30 }; linkedList.Clear(); Assert.AreEqual(0, linkedList.Count); Assert.IsNull(linkedList.First); Assert.IsNull(linkedList.Last); linkedList.AddLast(40); linkedList.AddLast(20); AssertExtensions.AreEqual(new[] { 40, 20 }, linkedList); }