public void GetColorNodeByKey_CheckColor()
{
ITree tree = new RBTree();
for (int i = 0; i < Nodes.Length; i++)
{
tree.AddNode(Nodes[i]);
}
Assert.AreEqual(Color.R, tree.GetColorNodeByKey(19));
Assert.AreEqual(Color.B, tree.GetColorNodeByKey(23));
Assert.AreEqual(Color.B, tree.GetColorNodeByKey(20));
Assert.AreEqual(Color.B, tree.GetColorNodeByKey(26));
}