public void TestMethod1(int[] head, int[] expected)
{
// Arrange
SwapNodesinPairs question = new SwapNodesinPairs();
ListNode headNode = null;
if (head != null && head.Length > 0)
{
headNode = new ListNode(head[0]);
ListNode node = headNode;
for (int i = 1; i < head.Length; i++)
{
node.next = new ListNode(head[i]);
node = node.next;
}
}
// Act
ListNode actual = question.SwapPairs(headNode);
List <int> actualList = null;
if (actual != null)
{
actualList = new List <int>();
while (actual != null)
{
actualList.Add(actual.val);
actual = actual.next;
}
}
// Assert
CollectionAssert.AreEqual(expected, actualList?.ToArray());
}
public void SwapPairsTest()
{
//Arrange
var swapNodesinPairs = new SwapNodesinPairs();
var actInput = new ListNode(1)
{
next = new ListNode(2)
{
next = new ListNode(3)
{
next = new ListNode(4)
}
}
};
var expected = new ListNode(2)
{
next = new ListNode(1)
{
next = new ListNode(4)
{
next = new ListNode(3)
}
}
};
//Act
var act = swapNodesinPairs.SwapPairs(actInput);
//Assert
Assert.AreEqual(expected, act);
}
public void SwapPairsTests()
{
SwapNodesinPairs obj = new SwapNodesinPairs();
ListNode current = new ListNode(1)
{
next = new ListNode(2)
{
next = new ListNode(3)
{
next = new ListNode(4)
{
}
}
}
};
var x = obj.SwapPairs(current);// 2 1 4 3
current = new ListNode(1)
{
};
x = obj.SwapPairs(current);
current = new ListNode(1)
{
next = new ListNode(2)
{
next = new ListNode(3)
{
}
}
};
x = obj.SwapPairs(current);
current = null;
x = obj.SwapPairs(current);
}
