def test_stack_is_empty(test_stack): embty_stack = Stack() assert embty_stack.isEmpty() == True assert test_stack.isEmpty() == False
def test_is_empty(): s = Stack() actual = s.isEmpty() expected = True assert actual == expected
def test_queue_is_empty(test_queue): assert test_queue.isEmpty() == False test_queue = Stack() assert test_queue.isEmpty() == True