public void LastProperty_ReturnsTheCorrectNodeInListWithMultipleItems()
{
SimpleLinkedList <string> linkedList = new SimpleLinkedList <string>();
linkedList.AddFirst("asdf");
linkedList.AddFirst("qwer");
linkedList.AddFirst("zxcv");
Assert.Equal("asdf", linkedList.Last.Item);
}
public void AddFirstMethod_SetsThe_LinkProperty_OfTheCurrentHeadToThePreviousHeadOfTheList()
{
SimpleLinkedList<string> linkedList = new SimpleLinkedList<string>();
linkedList.AddFirst("new Item 1");
linkedList.AddFirst("new Item 2");
Assert.ReferenceEquals(linkedList.First.Link, "new Item 1");
Assert.Equal("new Item 1", linkedList.First.Link.Item);
}
public void AddFirstMethod_SetsThe_LinkProperty_OfTheCurrentHeadToThePreviousHeadOfTheList()
{
SimpleLinkedList <string> linkedList = new SimpleLinkedList <string>();
linkedList.AddFirst("new Item 1");
linkedList.AddFirst("new Item 2");
Assert.ReferenceEquals(linkedList.First.Link, "new Item 1");
Assert.Equal("new Item 1", linkedList.First.Link.Item);
}
public void FindMethod_ReturnsNullIfItemIsNotFound()
{
SimpleLinkedList <string> linkedList = new SimpleLinkedList <string>();
linkedList.AddFirst("asdf");
linkedList.AddFirst("qwer");
LinkedListNode <string> node = linkedList.Find("zzzzzzzzzzzz");
Assert.Null(node);
}
public void RemoveFirstMethod_RemovesTheFirstItemInTheList()
{
SimpleLinkedList <string> linkedList = new SimpleLinkedList <string>();
linkedList.AddFirst("asdf");
linkedList.AddFirst("qwer");
linkedList.RemoveFirst();
Assert.NotEqual("qwer", linkedList.First.Item);
}
public void RemoveFirstMethod_SetsThe_FirstProperty_ToTheSecondNodeIfTheItemToBeRemovedIsTheHeadOfTheList()
{
SimpleLinkedList <string> linkedList = new SimpleLinkedList <string>();
linkedList.AddFirst("new Item 1");
linkedList.AddFirst("new Item 2");
linkedList.RemoveFirst();
Assert.Equal("new Item 1", linkedList.First.Item);
}
public void RemoveMethod_RemovesCorrectItemFromListWithMultipleItems()
{
SimpleLinkedList <string> linkedList = new SimpleLinkedList <string>();
linkedList.AddFirst("asdf");
linkedList.AddFirst("middle");
linkedList.AddFirst("qwer");
linkedList.Remove("middle");
Assert.Null(linkedList.Find("middle"));
}
public void RemoveLastMethod_DecrementsLengthOfList()
{
SimpleLinkedList <string> linkedList = new SimpleLinkedList <string>();
int expectedCount = 0;
linkedList.AddFirst("asdf"); expectedCount++;
linkedList.AddFirst("qwer"); expectedCount++;
linkedList.RemoveLast(); expectedCount--;
Assert.Equal(expectedCount, linkedList.Count);
}
public void FindMethod_ReturnsCorrectNode()
{
SimpleLinkedList <string> linkedList = new SimpleLinkedList <string>();
linkedList.AddFirst("asdf");
linkedList.AddFirst("qwer");
LinkedListNode <string> node = linkedList.Find("asdf");
Assert.NotNull(node);
Assert.Equal("asdf", node.Item);
}
public void LastProperty_ReturnsTheOnlyNodeInTheList()
{
SimpleLinkedList <string> linkedList = new SimpleLinkedList <string>();
linkedList.AddFirst("asdf");
Assert.Equal("asdf", linkedList.Last.Item);
}
public void AddFirstMethod_IncrementsLengthOfList()
{
SimpleLinkedList<string> linkedList = new SimpleLinkedList<string>();
int expectedCount = 0;
linkedList.AddFirst("asdf"); expectedCount++;
Assert.Equal(expectedCount, linkedList.Count);
}
public void AddFirstMethod_AddsNewItemAtTheHeadOfList()
{
SimpleLinkedList<string> linkedList = new SimpleLinkedList<string>();
linkedList.AddFirst("new Item 1");
Assert.ReferenceEquals(linkedList.First, "new Item 1");
Assert.Equal("new Item 1", linkedList.First.Item);
}
public SimpleLinkedList <int> SumReverse(SimpleLinkedList <int> list1, SimpleLinkedList <int> list2)
{
SimpleLinkedList <int> resultList = new SimpleLinkedList <int>();
EqualizeLength(list1, list2);
var n1 = list1.Head;
var n2 = list2.Head;
PartialSum result = BuildSum(n1, n2);
resultList.AddFirst(result.Node.Value);
if (result.Carry > 0)
{
resultList.AddFirst(1);
}
return(resultList);
}
public void AddFirstMethod_IncrementsLengthOfList()
{
SimpleLinkedList <string> linkedList = new SimpleLinkedList <string>();
int expectedCount = 0;
linkedList.AddFirst("asdf"); expectedCount++;
Assert.Equal(expectedCount, linkedList.Count);
}
public void AddFirstMethod_AddsNewItemAtTheHeadOfList()
{
SimpleLinkedList <string> linkedList = new SimpleLinkedList <string>();
linkedList.AddFirst("new Item 1");
Assert.ReferenceEquals(linkedList.First, "new Item 1");
Assert.Equal("new Item 1", linkedList.First.Item);
}
public void RemoveFirstMethod_RemovesTheOnlyItemFromList()
{
SimpleLinkedList <string> linkedList = new SimpleLinkedList <string>();
linkedList.AddFirst("asdf");
linkedList.RemoveFirst();
Assert.Null(linkedList.Find("asdf"));
}
public void CheckListImplementation()
{
var myList = new SimpleLinkedList <int>();
List <int> netList = new List <int>();
myList.AddFirst(1);
foreach (var i in myList)
{
netList.Add(i);
}
LinkedList <int> nwtList = new LinkedList <int>();
Assert.Equal(1, netList[0]);
myList.AddFirst(0);
Assert.Equal(0, myList.Head.Value);
Assert.Equal(1, myList.Last.Value);
SimpleLinkedList <int> my3 = new SimpleLinkedList <int>(new[] { 1, 2, 3 });
var node2 = my3.Find(2);
my3.Remove(node2);
netList.Clear();
foreach (var i in my3)
{
netList.Add(i);
}
Assert.Equal(1, netList[0]);
Assert.Equal(3, netList[1]);
my3.Remove(my3.Head);
netList.Clear();
foreach (var i in my3)
{
netList.Add(i);
}
Assert.Equal(3, netList[0]);
}
public void RemoveLastMethod_SetsThe_FirstProperty_ToNullIfTheItemToBeRemovedIsTheOnlyItemInTheList()
{
SimpleLinkedList <string> linkedList = new SimpleLinkedList <string>();
linkedList.AddFirst("new Item 1");
linkedList.RemoveLast();
// acessing linkedList.First throws exception if the head of the list is null
Assert.Throws <InvalidOperationException>(
delegate
{
LinkedListNode <string> node = linkedList.First;
});
}
private void EqualizeLength(SimpleLinkedList <int> list1, SimpleLinkedList <int> list2)
{
int length1 = 0;
var n1 = list1.Head;
while (n1 != null)
{
length1++;
n1 = n1.Next;
}
int length2 = 0;
var n2 = list2.Head;
while (n2 != null)
{
length2++;
n2 = n2.Next;
}
if (length1 > length2)
{
while (length1 > length2)
{
list2.AddFirst(0);
length2++;
}
return;
}
if (length2 > length1)
{
while (length2 > length1)
{
list1.AddFirst(0);
length1++;
}
}
}
public void LastProperty_ReturnsTheCorrectNodeInListWithMultipleItems()
{
SimpleLinkedList<string> linkedList = new SimpleLinkedList<string>();
linkedList.AddFirst("asdf");
linkedList.AddFirst("qwer");
linkedList.AddFirst("zxcv");
Assert.Equal("asdf", linkedList.Last.Item);
}
public void LastProperty_ReturnsTheOnlyNodeInTheList()
{
SimpleLinkedList<string> linkedList = new SimpleLinkedList<string>();
linkedList.AddFirst("asdf");
Assert.Equal("asdf", linkedList.Last.Item);
}
public void RemoveFirstMethod_RemovesTheFirstItemInTheList()
{
SimpleLinkedList<string> linkedList = new SimpleLinkedList<string>();
linkedList.AddFirst("asdf");
linkedList.AddFirst("qwer");
linkedList.RemoveFirst();
Assert.NotEqual("qwer", linkedList.First.Item);
}
public void RemoveLastMethod_DecrementsLengthOfList()
{
SimpleLinkedList<string> linkedList = new SimpleLinkedList<string>();
int expectedCount = 0;
linkedList.AddFirst("asdf"); expectedCount++;
linkedList.AddFirst("qwer"); expectedCount++;
linkedList.RemoveLast(); expectedCount--;
Assert.Equal(expectedCount, linkedList.Count);
}
public void RemoveMethod_RemovesCorrectItemFromListWithMultipleItems()
{
SimpleLinkedList<string> linkedList = new SimpleLinkedList<string>();
linkedList.AddFirst("asdf");
linkedList.AddFirst("middle");
linkedList.AddFirst("qwer");
linkedList.Remove("middle");
Assert.Null(linkedList.Find("middle"));
}
public void RemoveMethod_RemovesTheOnlyItemFromList()
{
SimpleLinkedList<string> linkedList = new SimpleLinkedList<string>();
linkedList.AddFirst("asdf");
linkedList.Remove("asdf");
Assert.Null(linkedList.Find("asdf"));
}
public void RemoveMethod_SetsThe_FirstProperty_ToNullIfTheItemToBeRemovedIsTheOnlyItemInTheList()
{
SimpleLinkedList<string> linkedList = new SimpleLinkedList<string>();
linkedList.AddFirst("new Item 1");
linkedList.Remove("new Item 1");
// Assert
// acessing linkedList.First throws exception if the head of the list is null
Assert.Throws<InvalidOperationException>(
delegate
{
LinkedListNode<string> node = linkedList.First;
});
}
public void RemoveMethod_SetsThe_FirstProperty_ToTheSecondNodeIfTheItemToBeRemovedIsTheHeadOfTheList()
{
SimpleLinkedList<string> linkedList = new SimpleLinkedList<string>();
linkedList.AddFirst("new Item 1");
linkedList.AddFirst("new Item 2");
linkedList.Remove("new Item 2");
Assert.Equal("new Item 1", linkedList.First.Item);
}
public void FindMethod_ReturnsNullIfItemIsNotFound()
{
SimpleLinkedList<string> linkedList = new SimpleLinkedList<string>();
linkedList.AddFirst("asdf");
linkedList.AddFirst("qwer");
LinkedListNode<string> node = linkedList.Find("zzzzzzzzzzzz");
Assert.Null(node);
}
static void Main(string[] args)
{
#region Simple Linked
//var firstNode = new SimpleLinkedNode<string>();
//firstNode.Data = "primeiro";
//var secondNode = new SimpleLinkedNode<string>();
//secondNode.Data = "segundo";
//var thirdNode = new SimpleLinkedNode<string>();
//thirdNode.Data = "terceiro";
//var fourthNode = new SimpleLinkedNode<string>();
//fourthNode.Data = "quarto";
//var fifthNode = new SimpleLinkedNode<string>();
//fifthNode.Data = "quinto";
//var sixthNode = new SimpleLinkedNode<string>();
//sixthNode.Data = "sexto";
//var seventhNode = new SimpleLinkedNode<string>();
//seventhNode.Data = "quarto";
//firstNode.Next = secondNode;
//secondNode.Next = thirdNode;
//thirdNode.Next = fourthNode;
//fourthNode.Next = fifthNode;
//fifthNode.Next = sixthNode;
//sixthNode.Next = seventhNode;
//var currentNode = firstNode;
//while (currentNode != null)
//{
// Console.WriteLine(currentNode.Data);
// currentNode = currentNode.Next;
//}
#endregion
#region Circular
//var firstNode = new SimpleLinkedNode<string>();
//firstNode.Data = "primeiro";
//var secondNode = new SimpleLinkedNode<string>();
//secondNode.Data = "segundo";
//var thirdNode = new SimpleLinkedNode<string>();
//thirdNode.Data = "terceiro";
//var fourthNode = new SimpleLinkedNode<string>();
//fourthNode.Data = "quarto";
//var fifthNode = new SimpleLinkedNode<string>();
//fifthNode.Data = "quinto";
//var sixthNode = new SimpleLinkedNode<string>();
//sixthNode.Data = "sexto";
//firstNode.Next = secondNode;
//secondNode.Next = thirdNode;
//thirdNode.Next = fourthNode;
//fourthNode.Next = fifthNode;
//fifthNode.Next = sixthNode;
//sixthNode.Next = firstNode;
//var currentNode = firstNode;
//var loop = 0;
//while (loop<3)
//{
// if(currentNode == firstNode) Console.WriteLine("\nLoop #" + (loop+1));
// Console.WriteLine(currentNode.Data);
// if (currentNode == sixthNode) loop++;
// currentNode = currentNode.Next;
//}
#endregion
#region Back And Forth
//var firstNode = new DoubleLinkedNode<string>();
//firstNode.Data = "primeiro";
//var secondNode = new DoubleLinkedNode<string>();
//secondNode.Data = "segundo";
//var thirdNode = new DoubleLinkedNode<string>();
//thirdNode.Data = "terceiro";
//var fourthNode = new DoubleLinkedNode<string>();
//fourthNode.Data = "quarto";
//var fifthNode = new DoubleLinkedNode<string>();
//fifthNode.Data = "quinto";
//var sixthNode = new DoubleLinkedNode<string>();
//sixthNode.Data = "sexto";
//firstNode.Next = secondNode;
//secondNode.Next = thirdNode;
//thirdNode.Next = fourthNode;
//fourthNode.Next = fifthNode;
//fifthNode.Next = sixthNode;
//secondNode.Previous = firstNode;
//thirdNode.Previous = secondNode;
//fourthNode.Previous = thirdNode;
//fifthNode.Previous = fourthNode;
//sixthNode.Previous = fifthNode;
//var currentNode = firstNode;
//var goBack = false;
//var loop = 0;
//while (currentNode != null)
//{
// if (currentNode == firstNode && goBack && loop < 2)
// {
// goBack = false;
// loop++;
// }
// if (currentNode == firstNode) Console.WriteLine("\nLööp #" + (loop + 1));
// Console.WriteLine(currentNode.Data);
// if (currentNode == sixthNode) goBack = true;
// if (goBack) currentNode = currentNode.Previous;
// else currentNode = currentNode.Next;
//}
#endregion
var list = new SimpleLinkedList <string>("First");
list.Add("Second");
list.Add("Third");
list.Add("Forth");
list.Add("Fifth");
list.Add("Sixth");
list.Add("Seventh");
list.Add("Eighth");
list.Add("Seventh");
list.Add("Nineth");
list.AddFirst("zero");
list.Replace("Seventh", "Hello");
}
public void FindMethod_ReturnsCorrectNode()
{
SimpleLinkedList<string> linkedList = new SimpleLinkedList<string>();
linkedList.AddFirst("asdf");
linkedList.AddFirst("qwer");
LinkedListNode<string> node = linkedList.Find("asdf");
Assert.NotNull(node);
Assert.Equal("asdf", node.Item);
}
