def test_InteriorNode_postfixTest1(self):
leaf1 = LeafNode(5)
leaf2 = LeafNode(10)
node1 = InteriorNode(Token('+'), leaf1, leaf2)
node2 = InteriorNode(Token('*'), leaf1, node1)
node3 = InteriorNode(Token('-'), node2, leaf2)
s = "5 5 10 + * 10 -"
print(node3.postfix())
self.assertEqual(node3.postfix(), s)
def test_InteriorNode_postfixTest2(self):
leaf1 = LeafNode(72)
leaf2 = LeafNode(14)
node1 = InteriorNode(Token('+'), leaf1, leaf2)
node2 = InteriorNode(Token('*'), leaf1, node1)
node3 = InteriorNode(Token('/'), node2, leaf2)
s = "72 72 14 + * 14 /"
self.assertEqual(node3.postfix(), s)