public void CalculateTotalNodes()
{
Assert.AreEqual(1, BinTree.CalculateTotalNodes(1));
Assert.AreEqual(3, BinTree.CalculateTotalNodes(2));
Assert.AreEqual(6, BinTree.CalculateTotalNodes(3));
Assert.AreEqual(10, BinTree.CalculateTotalNodes(4));
}
