public void CountTest()
{
var list = new DoublyLinkedList <string>();
Assert.AreEqual(0, list.Count);
list.AddBack("Alpha");
Assert.AreEqual(1, list.Count);
list.AddBack("Beta");
Assert.AreEqual(2, list.Count);
}
public void AddBackTest()
{
var list = new DoublyLinkedList <string>();
list.AddBack("Alpha");
list.AddBack("Beta");
list.AddBack("Charlie");
Assert.AreEqual(3, list.Count);
Assert.AreEqual("Alpha", list.GetAt(0));
Assert.AreEqual("Beta", list.GetAt(1));
Assert.AreEqual("Charlie", list.GetAt(2));
}
public void IndexOfTest()
{
var list = new DoublyLinkedList <string>();
list.AddBack("Alpha");
list.AddBack("Beta");
list.AddBack("Charlie");
Assert.AreEqual(0, list.IndexOf("Alpha"));
Assert.AreEqual(1, list.IndexOf("Beta"));
Assert.AreEqual(2, list.IndexOf("Charlie"));
Assert.AreEqual(-1, list.IndexOf("Delta"));
}
public void ClearTest()
{
var list = new DoublyLinkedList <string>();
list.AddBack("Alpha");
list.AddBack("Beta");
list.AddBack("Charlie");
Assert.AreEqual(3, list.Count);
list.Clear();
Assert.AreEqual(0, list.Count);
}
public void RemoveMiddleTest()
{
var list = new DoublyLinkedList <string>();
list.AddBack("Alpha");
list.AddBack("Beta");
list.AddBack("Charlie");
list.RemoveAt(1);
Assert.AreEqual(2, list.Count);
Assert.AreEqual("Alpha", list.GetAt(0));
Assert.AreEqual("Charlie", list.GetAt(1));
}
public void ContainsTest()
{
var list = new DoublyLinkedList <string>();
list.AddBack("Alpha");
list.AddBack("Beta");
list.AddBack("Charlie");
Assert.AreEqual(3, list.Count);
Assert.AreEqual(true, list.Contains("Alpha"));
Assert.AreEqual(true, list.Contains("Beta"));
Assert.AreEqual(true, list.Contains("Charlie"));
Assert.AreEqual(false, list.Contains("Delta"));
}
public void GetBackTest()
{
var list = new DoublyLinkedList <string>();
list.AddBack("Alpha");
list.AddBack("Beta");
list.AddBack("Charlie");
Assert.AreEqual("Charlie", list.GetBack());
list.RemoveBack();
Assert.AreEqual("Beta", list.GetBack());
list.RemoveBack();
Assert.AreEqual("Alpha", list.GetBack());
list.RemoveBack();
Assert.AreEqual(0, list.Count);
}
public void AddMiddleTest()
{
var list = new DoublyLinkedList <string>();
list.AddBack("Alpha");
list.AddBack("Beta");
list.AddBack("Delta");
list.AddBack("Echo");
list.AddAt(2, "Charlie");
Assert.AreEqual(5, list.Count);
Assert.AreEqual("Alpha", list.GetAt(0));
Assert.AreEqual("Beta", list.GetAt(1));
Assert.AreEqual("Charlie", list.GetAt(2));
Assert.AreEqual("Delta", list.GetAt(3));
Assert.AreEqual("Echo", list.GetAt(4));
}
public void RemoveBackTest()
{
var list = new DoublyLinkedList <string>();
list.AddBack("Alpha");
list.AddBack("Beta");
list.AddBack("Charlie");
string shouldBeCharlie = list.RemoveBack();
Assert.AreEqual(2, list.Count);
Assert.AreEqual("Charlie", shouldBeCharlie);
string shouldBeBeta = list.RemoveBack();
Assert.AreEqual(1, list.Count);
Assert.AreEqual("Beta", shouldBeBeta);
}