def test_buttord_2(self):
# Test case for highpass filter
self.assertTrue(
np.all(
IIRDesign.buttord(self.f2, self.f1, self.Rp, self.Rs) ==
signal.buttord(
self.f2, self.f1, self.Rp, self.Rs, analog=False, fs=2)))
def test_buttord_4(self):
# Test case for bandstop filter
ORD = IIRDesign.buttord(self.f4, self.f3, self.Rp, self.Rs)
ord = signal.buttord(self.f4,
self.f3,
self.Rp,
self.Rs,
analog=False,
fs=2)
self.assertTrue((ORD[0] == ord[0]) and (ORD[1] == ord[1]).all())
def test_buttord_6(self):
# Test case for Exception
with self.assertRaises(ValueError):
IIRDesign.buttord(self.f1, self.f2, self.Rp, self.Rs, zs='x')
def test_buttord_5(self):
# Test case for analog filter
self.assertTrue(
np.all(
IIRDesign.buttord(60, 75, self.Rp, self.Rs, zs='s') == signal.
buttord(60, 75, self.Rp, self.Rs, analog=True, fs=None)))
