public void Test1()
{
// Arrange
ListNode[] lists =
{
new ListNode(1, new ListNode(4, new ListNode(5)))
, new ListNode(1, new ListNode(3, new ListNode(4)))
, new ListNode(2, new ListNode(6))
};
// Act
var root = new Solution4().MergeKLists(lists);
// Assert
var vals = new List <int>();
var current = root;
while (current != null)
{
vals.Add(current.val);
current = current.next;
}
CollectionAssert.AreEqual(new[] { 1, 1, 2, 3, 4, 4, 5, 6 }, vals);
}
public void Test3()
{
// Arrange
ListNode[] lists = { null };
// Act
var root = new Solution4().MergeKLists(lists);
// Assert
Assert.Null(root);
}
public void Test2()
{
// Arrange
var lists = new ListNode[0];
// Act
var root = new Solution4().MergeKLists(lists);
// Assert
Assert.Null(root);
}