public void TestForFindMaxAndMin1()
{
Tree2 tree = new Tree2(10);
tree.AddChild(new Node(10));
tree.AddChild(new Node(9));
tree.AddChild(new Node(7));
tree.AddChild(new Node(1));
tree.AddChild(new Node(12));
tree.AddChild(new Node(11));
tree.AddChild(new Node(15));
Node max = tree.FindMaxFrom(tree.root);
Node min = tree.FindMinFrom(tree.root);
Assert.AreEqual(1, min.value);
Assert.AreEqual(15, max.value);
}