public void TreeFindMax()
{
TreeTraversal <string> t = new TreeTraversal <string>();
string[] patterns = new[] { "A", "M", "P", "L", "E" };
TreeNode <string> max = t.Max(patterns, 0, patterns.Length - 1);
Assert.AreEqual("P", max.Item);
patterns = new[] { "recursive", "program", "that", "builds", "a", "tournament" };
max = t.Max(patterns, 0, patterns.Length - 1);
Assert.AreEqual("tournament", max.Item);
}