public void TestRemove()
{
for (var i = 0; i < 10; i++)
{
list.AddLast(i);
}
Assert.AreEqual(0, list.First.Value);
Assert.AreEqual(9, list.Last.Value);
list.RemoveFirst();
Assert.AreEqual(1, list.First.Value);
Assert.AreEqual(9, list.Last.Value);
list.RemoveLast();
Assert.AreEqual(1, list.First.Value);
Assert.AreEqual(8, list.Last.Value);
list.Remove(4);
list.Remove(7);
list.Remove(8);
list.Remove(1);
var node = list.First;
Assert.AreEqual(2, node.Value);
node = node.Next;
Assert.AreEqual(3, node.Value);
node = node.Next;
Assert.AreEqual(5, node.Value);
node = node.Next;
Assert.AreEqual(6, node.Value);
node = node.Next;
Assert.AreEqual(null, node);
}