ref: d27bb35bf310b4f3ebdfa8c5c4aed0d265945413
dir: /python/tests/test_hist.py.old/
#! /usr/bin/env python
from numpy.testing import TestCase, assert_equal, assert_almost_equal
from aubio import fvec, digital_filter
import random
buf_size = 2048
channels = 1
flow = float(random.randint(0, 100) + random.random())
fhig = float(random.randint(100, 1000) + random.random())
nelems = 1000
class hist_test_case(TestCase):
def setUp(self):
self.o = new_aubio_hist(flow, fhig, nelems, channels)
def tearDown(self):
del_aubio_hist(self.o)
def test_hist(self):
""" create and delete hist """
pass
def test_hist_zeroes(self):
""" test hist on zeroes """
input = new_fvec(buf_size, channels)
aubio_hist_do_notnull(self.o, input)
aubio_hist_weight(self.o)
self.assertEqual(0., aubio_hist_mean(self.o))
del_fvec(input)
def test_hist_impulse_top(self):
""" test hist on impulse (top - 1.) """
""" this returns 1./nelems because 1 element is in the range """
input = new_fvec(buf_size, channels)
constant = fhig - 1.
fvec_write_sample(input,constant,0,0)
aubio_hist_do_notnull(self.o, input)
self.assertCloseEnough(1./nelems, aubio_hist_mean(self.o))
del_fvec(input)
def test_hist_impulse_over(self):
""" test hist on impulse (top + 1.) """
""" this returns 0 because constant is out of range """
input = new_fvec(buf_size, channels)
constant = fhig + 1.
fvec_write_sample(input,constant,0,0)
aubio_hist_do_notnull(self.o, input)
self.assertCloseEnough(0., aubio_hist_mean(self.o))
del_fvec(input)
def test_hist_impulse_bottom(self):
""" test hist on constant near lower limit """
""" this returns 1./nelems because 1 element is in the range """
input = new_fvec(buf_size, channels)
constant = flow + 1.
fvec_write_sample(input,constant,0,0)
aubio_hist_do_notnull(self.o, input)
self.assertCloseEnough(1./nelems, aubio_hist_mean(self.o))
del_fvec(input)
def test_hist_impulse_under(self):
""" test hist on constant under lower limit """
""" this returns 0 because constant is out of range """
vec_in = fvec(buf_size)
constant = flow - 1.
vec_in[0] = constant
aubio_hist_do_notnull(self.o, input)
self.assertCloseEnough(0., aubio_hist_mean(self.o))
del_fvec(input)
if __name__ == '__main__': unittest.main()