public void SimpleLinkedListTest() { SimpleLinkedList node = new SimpleLinkedList(); node.Add(5); node.Add(6); node.Add(12); //get the head Node from the Linked List SimpleLinkedList.Node currentNode; currentNode = node.GetCurrentNode(); Assert.IsNotNull(currentNode); Assert.AreEqual(5, currentNode.Data); //get the next Node from the Linked List var nextNode = node.GetNext(); currentNode = nextNode; Assert.IsNotNull(currentNode); Assert.AreEqual(6, currentNode.Data); //get the following node nextNode = node.GetNext(); currentNode = nextNode; Assert.IsNotNull(currentNode); Assert.AreEqual(12, currentNode.Data); nextNode = node.GetNext(); currentNode = nextNode; Assert.IsNotNull(currentNode); //test removing node from list currentNode = node.Head(); Assert.IsNotNull(currentNode); Assert.AreEqual(5, currentNode.Data); currentNode = node.GetNext(); Assert.IsNotNull(currentNode); Assert.AreEqual(6, currentNode.Data); node.RemoveCurrentNode(); currentNode = node.GetCurrentNode(); Assert.IsNotNull(currentNode); Assert.AreEqual(12, currentNode.Data); //remove head from list currentNode = node.Head(); Assert.IsNotNull(currentNode); Assert.AreEqual(5, currentNode.Data); node.RemoveCurrentNode(); currentNode = node.GetCurrentNode(); Assert.IsNotNull(currentNode); Assert.AreEqual(12, currentNode.Data); }