async def METHOD_NAME(self):
    rp = self.make_poller(self.mock_request, interval=10)
    self.assertEqual(rp.interval, 10)
    rp.interval = 5
    self.assertEqual(rp.interval, 5)
    await rp.start()
    await self.advance(0)
    self.assertEqual(self.mock_request_calls, 1)
    await self.advance(rp.interval * 2)
    self.assertEqual(self.mock_request_calls, 3)
    await self.advance(rp.interval * 3)
    self.assertEqual(self.mock_request_calls, 6)
    await rp.stop()