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dsp: move lfilter and IIR to tests

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Roman Zeyde
2015-02-11 17:20:51 +02:00
parent 4cebb06e11
commit d81ec630a5
5 changed files with 41 additions and 39 deletions
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5
tests/test_dsp.py
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@@ -1,6 +1,7 @@
from amodem import dsp
from amodem import sampling
from amodem import config
import utils
import numpy as np
import random
@@ -20,11 +21,11 @@ def test_linreg():
def test_filter():
x = range(10)
y = dsp.lfilter(b=[1], a=[1], x=x)
y = utils.lfilter(b=[1], a=[1], x=x)
assert (np.array(x) == y).all()
x = [1] + [0] * 10
y = dsp.lfilter(b=[0.5], a=[1, -0.5], x=x)
y = utils.lfilter(b=[0.5], a=[1, -0.5], x=x)
assert list(y) == [0.5 ** (i+1) for i in range(len(x))]