def test_clone_linked_list(self):
head = self.creating_list()
new_head = Node.clone_linked_list(head)
# getting the two lists for comparison
old_list = Node.get_linked_list(head)
new_list = Node.get_linked_list(new_head)
self.assertEqual(new_list[1].data, 6)
self.assertEqual(new_list[1].next, new_list[2])
self.assertEqual(new_list[1].rnd, new_list[3])
self.assertEqual(old_list, new_list)
self.assertIsNot(old_list, new_list)
def test_get_linked_list(self):
head = self.creating_list()
result_list = Node.get_linked_list(head)
self.assertEqual(result_list[2].data, 7)
self.assertEqual(result_list[2].next, result_list[3])
self.assertEqual(result_list[2].rnd, result_list[1])
