class RMSTest(unittest.TestCase):
def setUp(self):
self.p = RMS()
self.s = SineSource(freq=1000, amp=0.5)
def test_on_sin(self):
chunk_len = 100 * self.s.rate / self.s._freq
chunk = list(islice(self.s.read(), 0, chunk_len))
self.p.process(chunk)
# RMS for sine is Amplitude / sqrt(2)
self.assertAlmostEqual(self.p.get_state()["rms"][0], self.s._amp / sqrt(2.0), 3)
def setUp(self):
self.p = RMS()
self.s = SineSource(freq=1000, amp=0.5)