public void Append_Element_In_Tail()
{
TwoWayNode node = new TwoWayNode("Test4");
_customList.Append(node.Value);
Assert.AreEqual(_customList.Tail.Value, node.Value);
}
public void Check_Value_Not_Exist(string value)
{
TwoWayNode node = new TwoWayNode(value);
TwoWayNode result = _customList.ContainsValue(value);
Assert.IsNull(result);
}
public void Check_Value_Exist(string value)
{
TwoWayNode node = new TwoWayNode(value);
var result = _customList.ContainsValue(value);
Assert.AreEqual(node.Value, result.Value);
}
public void Append_Element_In_Tail_Check_Next_Element_Is_Null()
{
TwoWayNode node = new TwoWayNode("Test4");
_customList.Append(node.Value);
Assert.IsNull(_customList.Tail.Next);
}
public void Append_Element_In_Tail_Check_Count()
{
TwoWayNode node = new TwoWayNode("Test4");
int count = _customList.Count;
_customList.Append(node.Value);
Assert.AreEqual(_customList.Count, count + 1);
}
public void Delete_Middle_Previous_Next_In_Head_Equal_To_Previous_Tail()
{
TwoWayNode node = _customList.Head.Next;
_customList.Remove(node.Value);
Assert.AreEqual(_customList.Head.Next.Value, _customList.Tail.Value);
}
public void Delete_Head_Middle_Change_To_Head()
{
TwoWayNode node = _customList.Head.Next;
_customList.Remove(_customList.Head.Value);
Assert.AreEqual(node.Value, _customList.Head.Value);
}
public void Append_Element_Check_Next_Element_In_Previous()
{
TwoWayNode node = new TwoWayNode("Test4");
_customList.Append(node.Value);
var previous_node = _customList.Tail.Previous;
Assert.AreEqual(previous_node.Next.Value, node.Value);
}
public void Append_Element_In_Tail_Check_Previous_Element()
{
TwoWayNode node = new TwoWayNode("Test4");
TwoWayNode node_previous = _customList.Tail;
_customList.Append(node.Value);
Assert.AreEqual(_customList.Tail.Previous.Value, node_previous.Value);
}
public void Delete_In_Empty_List()
{
TwoWayNode node = _customList.Head;
_customList.Head = null;
_customList.Tail = null;
Assert.IsFalse(_customList.Remove(node.Value));
}
public void Delete_In_One_Element_List()
{
TwoWayNode node = _customList.Head;
_customList.Head = null;
_customList.Tail = null;
_customList.Count = 0;
_customList.Append("Test1");
Assert.IsTrue(_customList.Remove(node.Value));
}
public void Check_Head_Is_Null_In_One_Element_List()
{
TwoWayNode node = _customList.Head;
_customList.Head = null;
_customList.Tail = null;
_customList.Count = 0;
_customList.Append("Test1");
_customList.Remove(node.Value);
Assert.IsNull(_customList.Head);
}
public void Check_Count_Delete_In_One_Element_List()
{
TwoWayNode node = _customList.Head;
_customList.Head = null;
_customList.Tail = null;
_customList.Count = 0;
_customList.Append("Test1");
int count = _customList.Count;
_customList.Remove(node.Value);
Assert.AreEqual(count - 1, _customList.Count);
}
public void SetUp()
{
_customList = new DoublyLinkedList();
TwoWayNode head = new TwoWayNode("Test1");
TwoWayNode middle = new TwoWayNode("Test2");
TwoWayNode tail = new TwoWayNode("Test3");
_customList.Head = head;
_customList.Head.Next = middle;
_customList.Head.Next.Next = tail;
_customList.Head.Next.Previous = _customList.Head;
_customList.Tail = tail;
_customList.Tail.Previous = _customList.Head.Next;
_customList.Count = 3;
}
public void Delete_Not_Exist_Element()
{
TwoWayNode NotExistNode = new TwoWayNode("Test");
Assert.IsFalse(_customList.Remove(NotExistNode.Value));
}
