public void AddMethodShouldAddElementCorrectly()
{
var list = new CustomDoubleLinkedList <int>();
list.Add(1);
list.Add(4);
list.Add(6);
Assert.Equal(3, list.Count);
}
public void ContainsMethodShouldReturnTrueIfElementExistsInList()
{
var list = new CustomDoubleLinkedList <int>();
list.Add(1);
list.Add(4);
list.Add(6);
Assert.True(list.Contains(4));
}
public void RemoveMethodShouldWorkCorrectly()
{
var list = new CustomDoubleLinkedList <int>();
list.Add(1);
list.Add(4);
list.Add(6);
list.Remove(4);
Assert.Equal(2, list.Count);
}
public void SwapShouldWorkCorrectlyForFirstAndLastElementsInList()
{
var list = new CustomDoubleLinkedList <int>();
list.Add(1);
list.Add(5);
list.Swap(1, 5);
Assert.Equal(5, list.First);
Assert.Equal(1, list.Last);
}
public void SwapShouldWorkCorrectlyForNearbyElements()
{
var list = new CustomDoubleLinkedList <int>();
list.Add(1);
list.Add(2);
list.Add(3);
list.Add(4);
list.Add(5);
list.Swap(4, 5);
Assert.Equal(4, list.Last);
}
public void SwapShouldWorkCorrectlyForLastElementAndElementInTheMiddle()
{
var list = new CustomDoubleLinkedList <int>();
list.Add(1);
list.Add(2);
list.Add(3);
list.Add(4);
list.Add(5);
list.Swap(3, 5);
Assert.Equal(1, list.First);
Assert.Equal(3, list.Last);
}