public void MergeTwoLists_TwoOneElementLists_SortResult()
{
var problem = new Problem0021();
var l1 = new ListNode(2);
var l2 = new ListNode(1);
var result = problem.MergeTwoLists(l1, l2);
Assert.AreEqual(2, result.next.val);
}
public void MergeTwoListsTests()
{
var problem = new Problem0021();
var l1 = new ListNode(1, new ListNode(2, new ListNode(4)));
var l2 = new ListNode(1, new ListNode(3, new ListNode(4)));
var result = problem.MergeTwoLists(l1, l2);
Assert.AreEqual(3, result.next.next.next.val);
}
public void MergeTwoLists_Empty()
{
var problem = new Problem0021();
var l1 = new ListNode();
ListNode l2 = null;
var result = problem.MergeTwoLists(l1, l2);
Assert.AreEqual(l1, result);
}
