def test_from_values(self): st = Stack.from_values() self.assertEqual(len(st), 0) st = Stack.from_values(11, 22) self.assertEqual(len(st), 2) self.assertEqual(st.top(), 22)
def test_top(self): st = Stack.from_values(11, 22) self.assertEqual(st.top(), 22) st.pop() self.assertEqual(st.top(), 11) st.pop()