public void TestAccept()
{
BinarySearchTree <int, string> tree = GetTestTree();
TrackingVisitor <KeyValuePair <int, string> > visitor = new TrackingVisitor <KeyValuePair <int, string> >();
tree.Accept(visitor);
Assert.AreEqual(visitor.TrackingList.Contains(new KeyValuePair <int, string>(4, "4")), true);
Assert.AreEqual(visitor.TrackingList.Contains(new KeyValuePair <int, string>(6, "6")), true);
Assert.AreEqual(visitor.TrackingList.Contains(new KeyValuePair <int, string>(2, "2")), true);
Assert.AreEqual(visitor.TrackingList.Contains(new KeyValuePair <int, string>(5, "5")), true);
Assert.AreEqual(visitor.TrackingList.Contains(new KeyValuePair <int, string>(19, "19")), true);
Assert.AreEqual(visitor.TrackingList.Contains(new KeyValuePair <int, string>(1, "1")), true);
Assert.AreEqual(visitor.TrackingList.Count, 6);
}
public void TestNullVisitor()
{
BinarySearchTree <int, string> tree = new BinarySearchTree <int, string>();
tree.Accept(null);
}