public override string ToString()
{
if (next == null)
{
return(value.ToString());
}
return(value.ToString() + " <-> " + next.ToString());
}
public override bool Equals(Object obj)
{
if (obj == null || GetType() != obj.GetType())
{
return(false);
}
DoubleNode <T> p = (DoubleNode <T>)obj;
return(p.ToString() == this.ToString());
}
public void ToStringForDoublyLinkedNodes()
{
var a = new DoubleNode <char>('a');
var b = new DoubleNode <char>('b');
var c = new DoubleNode <char>('c');
var d = new DoubleNode <char>('d');
a.previous = null;
a.next = b;
b.previous = a;
b.next = c;
c.previous = b;
c.next = d;
d.previous = c;
d.next = null;
var expected = "a <-> b <-> c <-> d";
var actual = a.ToString();
Assert.AreEqual(expected, actual);
}