public void Can_Travel_All() { var myLinkedList = new MyLinkedList <int>(); myLinkedList.AddFirst(1); myLinkedList.AddLast(2); myLinkedList.AddLast(3); var list = myLinkedList.ToList(); list[0].Should().Be(1); list[1].Should().Be(2); list[2].Should().Be(3); list.Count.Should().Be(3); }