def test_without_dups(self):
linked_list = remove_dups.LinkedList(
remove_dups.Node(1, remove_dups.Node(2, remove_dups.Node(3))))
result = remove_dups.LinkedList(
remove_dups.Node(1, remove_dups.Node(2, remove_dups.Node(3))))
linked_list.remove_dups(False)
self.assertEqual(linked_list, result)
def test_empty_linked_list(self):
empty_list = remove_dups.LinkedList()
result = remove_dups.LinkedList()
empty_list.remove_dups(False)
self.assertEqual(empty_list, result)