def test_attributes(self):
        """
        L{ThreadPool.min} and L{ThreadPool.max} are set to the values passed to
        L{ThreadPool.__init__}.
        """
        pool = threadpool.ThreadPool(12, 22)
        self.assertEqual(pool.min, 12)
        self.assertEqual(pool.max, 22)

        L{ThreadPool.min} and L{ThreadPool.max} are set to the values passed to
        L{ThreadPool.__init__}.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/test/test_threadpool.py