def test_one_minute_ewma(self):
ewma = EWMA.m1()
ewma.update(3)
ewma.tick()
self.assertAlmostEqual(ewma.rate, 0.6, places=6)
self._one_minute(ewma)
self.assertAlmostEqual(ewma.rate, 0.22072766, places=6)
self._one_minute(ewma)
self.assertAlmostEqual(ewma.rate, 0.08120117, places=6)
