public void DeleteTest()
{
MyList.mListPrev lst = new MyList.mListPrev();
lst.Add(1);
lst.Add(2);
lst.Add(3);
lst.Add(4);
lst.Add(5);
lst.Delete(2);
int expected = 4;
NUnit.Framework.Assert.AreEqual(expected, lst[2]);
}
public void InsertTest()
{
MyList.mListPrev lst = new MyList.mListPrev();
lst.Add(1);
lst.Add(2);
lst.Add(3);//
lst.Add(4);
lst.Add(5);
lst.Insert(2, 10);
int expected = 10;
NUnit.Framework.Assert.AreEqual(expected, lst[2]);
}
public void RemoveTest()
{
MyList.mListPrev lst = new MyList.mListPrev();
lst.Add(5);
lst.Add(3);
int expected = 1;
lst.Remove(5);
NUnit.Framework.Assert.AreEqual(expected, lst.Count());
}
public void ClearTest()
{
MyList.mListPrev lst = new MyList.mListPrev();
lst.Add(5);
lst.Add(4);
lst.Add(3);
lst.Add(2);
lst.Add(1);
int expected = 0;
lst.Clear();
NUnit.Framework.Assert.AreEqual(expected, lst.Count());
}
public mListPrev()
{
data = 0;
next = null;
previous = null;
}
public void AddTest()
{
MyList.mListPrev lst = new MyList.mListPrev();
lst.Add(5);
int expected = 5;
NUnit.Framework.Assert.AreEqual(expected, lst[0]);
}
public mListPrev(int value)
{
data = value;
next = null;
previous = null;
}
public void Remove(int value)
{
var temp = first;
mListPrev current = null;
int k = 0;
while(temp!=null)
{
if (temp.Data == value && temp.Data != last.Data && temp.Data != first.Data&& k==0)
{
current.Next = temp.Next;
temp = temp.Next;
size = size - 1;
k++;
}
else if(temp.Data==value && temp.Data==last.Data&& k==0)
{
last = temp.Previous;
last.Next = null;
size = size - 1;
k++;
break;
}
current = temp;
temp = temp.Next;
if (first.Data == value&& k==0 )
{
k++;
current = temp;
first = current;
current.Previous = null;
temp = temp.Next;
size = size - 1;
}
}
}
public void AddToStart(int value)
{
var temp = first;
mListPrev current = null;
current = new mListPrev(value);
current.Next = temp;
first = current;
temp.Previous=first;
temp = first;
size++;
}
public void DelFirst()
{
first = first.Next;
first.Previous = null;
size = size - 1;
}
public void Insert (int position, int value)
{
var temp = first;
mListPrev current = null;
int counter = 0;
int k=0;
while (temp!=null)
{
if (position == 0 && k == 0)
{
this.AddToStart(value);
k++;
}
else if (position==counter)
{
current = new mListPrev(value);
current.Next = temp;
current.Previous = temp.Previous;
temp.Previous = current;
var tempPrevios = current.Previous;
tempPrevios.Next = current;
temp = current;
size++;
}
else if (counter == size-1 && position==size)
{
current = new mListPrev(value);
current.Next = null;
current.Previous = temp;
temp.Next = current;
last = current;
size++;
break;
}
current = temp;
temp = temp.Next;
counter++;
}
}
public void Delete(int position)
{
var temp = first;
mListPrev current = null;
int k = 0;
int counter = 0;
while (temp != null)
{
if (position == 0 && k==0)
{
this.DelFirst();
k++;
}
else if (position == size-1)
{
last = last.Previous;
last.Next = null;
size = size - 1;
k++;
break;
}
else if (position == counter)
{
current.Next = temp.Next;
temp = temp.Next;
size = size - 1;
}
current = temp;
temp = temp.Next;
counter++;
}
}
public void Clear()
{
mListPrev temp = first;
mListPrev current=null;
while (temp!=null)
{
current = temp;
temp = temp.Next;
current = null;
}
last = null;
first = null;
size=0;
}
public void AddToStartTest()
{
MyList.mListPrev lst = new MyList.mListPrev();
lst.Add(1);
lst.Add(2);
lst.Add(3);
lst.AddToStart(10);
int expected = 10;
NUnit.Framework.Assert.AreEqual(expected, lst[0]);
}
public mListPrev(int value, mListPrev res)
{
data = value;
next = res;
previous = null;
}
public void DelFirstTest()
{
MyList.mListPrev lst = new MyList.mListPrev();
lst.Add(1);
lst.Add(2);
lst.Add(3);
lst.DelFirst();
int expected = 2;
NUnit.Framework.Assert.AreEqual(expected, lst[0]);
}
public void Add(int value)
{
mListPrev current = new mListPrev(value);
if (first == null)
{
first = current;
last = current;
}
else
{
last.Next = current;
var temp = last;
last = current;
last.Previous = temp;
}
size++;
}
