public void TestGettingNthNode()
{
// Arrange
var SUT = new ComputamikeDoublyLinkedList();
var newNode = new DoublyLinkedListNode()
{
Data = "123"
};
var newNode2 = new DoublyLinkedListNode()
{
Data = "456"
};
var newNode3 = new DoublyLinkedListNode()
{
Data = "789"
};
SUT.Add(newNode);
SUT.Add(newNode2);
SUT.Add(newNode3);
// Act
var firstItem = SUT[0];
var secondItem = SUT[1];
var thirdItem = SUT[2];
// Assert
Assert.Equal(firstItem.Data, newNode.Data);
Assert.Equal(secondItem.Data, newNode2.Data);
Assert.Equal(thirdItem.Data, newNode3.Data);
}
public void TestRemovingANodeAtNthNode()
{
// Arrange
var SUT = new ComputamikeDoublyLinkedList();
var newNode = new DoublyLinkedListNode()
{
Data = "123"
};
var newNode2 = new DoublyLinkedListNode()
{
Data = "456"
};
var newNode3 = new DoublyLinkedListNode()
{
Data = "789"
};
SUT.Add(newNode);
SUT.Add(newNode2);
SUT.Add(newNode3);
// Act
SUT.RemoveAt(1);
//Assert
Assert.Equal("123", SUT[0].Data);
Assert.Equal("789", SUT[1].Data);
}
public void TestAddingAFirstNode()
{
// Arrange
var SUT = new ComputamikeDoublyLinkedList();
var newNode = new DoublyLinkedListNode()
{
Data = "123"
};
// Act
SUT.Add(newNode);
// Assert
Assert.Equal(SUT.FirstNode, SUT.LastNode);
}
public void TestInsertingANodeAtNthNode()
{
// Arrange
var SUT = new ComputamikeDoublyLinkedList();
var newNode = new DoublyLinkedListNode()
{
Data = "123"
};
var newNode2 = new DoublyLinkedListNode()
{
Data = "456"
};
var newNode3 = new DoublyLinkedListNode()
{
Data = "789"
};
SUT.Add(newNode);
SUT.Add(newNode2);
SUT.Add(newNode3);
// Act
var newNode2b = new DoublyLinkedListNode()
{
Data = "777"
};
SUT.Add(1, newNode2b);
//Assert
Assert.Equal("123", SUT[0].Data);
Assert.Equal("456", SUT[1].Data);
Assert.Equal("777", SUT[2].Data);
Assert.Equal("789", SUT[3].Data);
// Assert that navigation works on the newly added Node.
Assert.Equal("456", SUT[2].Prev.Data);
Assert.Equal("789", SUT[2].Next.Data);
}
