def test_add(self): """Test add method.""" ul = UnorderedList() ul.add(1) self.assertFalse(ul.is_empty()) self.assertTrue(isinstance(ul.head, Node)) self.assertEqual(ul.head.get_data(), 1)
def test_is_empty(self): """Test is_empty method.""" ul = UnorderedList() self.assertTrue(ul.is_empty()) ul.head = Node(1) self.assertFalse(ul.is_empty())