public void testIsRightChild()
{
BinaryTreeNode rootNode = new BinaryTreeNode(2);
BinaryTreeNode leftChild = new BinaryTreeNode(1, rootNode);
BinaryTreeNode rightChild = new BinaryTreeNode(3, rootNode);
Assert.IsFalse(rootNode.isRightChild());
Assert.IsFalse(leftChild.isRightChild());
Assert.IsTrue(rightChild.isRightChild());
}