Showing the changes to python/tests (2 of 14 files). Show all
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| 1 | +#! /usr/bin/env python | |
| 2 | + | |
| 3 | +from numpy.testing import TestCase, assert_equal, assert_almost_equal | |
| 4 | +from aubio import fvec, digital_filter | |
| 5 | +import random | |
| 6 | + | |
| 7 | +buf_size = 2048 | |
| 8 | +channels = 1 | |
| 9 | +flow = float(random.randint(0, 100) + random.random()) | |
| 10 | +fhig = float(random.randint(100, 1000) + random.random()) | |
| 11 | + | |
| 12 | +nelems = 1000 | |
| 13 | + | |
| 14 | +class hist_test_case(TestCase): | |
| 15 | + | |
| 16 | + def setUp(self): | |
| 17 | + self.o = new_aubio_hist(flow, fhig, nelems, channels) | |
| 18 | + | |
| 19 | + def tearDown(self): | |
| 20 | + del_aubio_hist(self.o) | |
| 21 | + | |
| 22 | + def test_hist(self): | |
| 23 | + """ create and delete hist """ | |
| 24 | + pass | |
| 25 | + | |
| 26 | + def test_hist_zeroes(self): | |
| 27 | + """ test hist on zeroes """ | |
| 28 | + input = new_fvec(buf_size, channels) | |
| 29 | + aubio_hist_do_notnull(self.o, input) | |
| 30 | + aubio_hist_weight(self.o) | |
| 31 | + self.assertEqual(0., aubio_hist_mean(self.o)) | |
| 32 | + del_fvec(input) | |
| 33 | + | |
| 34 | + def test_hist_impulse_top(self): | |
| 35 | + """ test hist on impulse (top - 1.) """ | |
| 36 | + """ this returns 1./nelems because 1 element is in the range """ | |
| 37 | + input = new_fvec(buf_size, channels) | |
| 38 | + constant = fhig - 1. | |
| 39 | + fvec_write_sample(input,constant,0,0) | |
| 40 | + aubio_hist_do_notnull(self.o, input) | |
| 41 | + self.assertCloseEnough(1./nelems, aubio_hist_mean(self.o)) | |
| 42 | + del_fvec(input) | |
| 43 | + | |
| 44 | + def test_hist_impulse_over(self): | |
| 45 | + """ test hist on impulse (top + 1.) """ | |
| 46 | + """ this returns 0 because constant is out of range """ | |
| 47 | + input = new_fvec(buf_size, channels) | |
| 48 | + constant = fhig + 1. | |
| 49 | + fvec_write_sample(input,constant,0,0) | |
| 50 | + aubio_hist_do_notnull(self.o, input) | |
| 51 | + self.assertCloseEnough(0., aubio_hist_mean(self.o)) | |
| 52 | + del_fvec(input) | |
| 53 | + | |
| 54 | + def test_hist_impulse_bottom(self): | |
| 55 | + """ test hist on constant near lower limit """ | |
| 56 | + """ this returns 1./nelems because 1 element is in the range """ | |
| 57 | + input = new_fvec(buf_size, channels) | |
| 58 | + constant = flow + 1. | |
| 59 | + fvec_write_sample(input,constant,0,0) | |
| 60 | + aubio_hist_do_notnull(self.o, input) | |
| 61 | + self.assertCloseEnough(1./nelems, aubio_hist_mean(self.o)) | |
| 62 | + del_fvec(input) | |
| 63 | + | |
| 64 | + def test_hist_impulse_under(self): | |
| 65 | + """ test hist on constant under lower limit """ | |
| 66 | + """ this returns 0 because constant is out of range """ | |
| 67 | + vec_in = fvec(buf_size) | |
| 68 | + constant = flow - 1. | |
| 69 | + vec_in[0] = constant | |
| 70 | + aubio_hist_do_notnull(self.o, input) | |
| 71 | + self.assertCloseEnough(0., aubio_hist_mean(self.o)) | |
| 72 | + del_fvec(input) | |
| 73 | + | |
| 74 | +if __name__ == '__main__': unittest.main() | |
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| 1 | +from aubio import zero_crossing_rate | |
| 2 | + | |
| 3 | +#! /usr/bin/env python | |
| 4 | + | |
| 5 | +from numpy.testing import TestCase | |
| 6 | + | |
| 7 | +buf_size = 2048 | |
| 8 | +channels = 1 | |
| 9 | + | |
| 10 | +class zero_crossing_rate_test_case(TestCase): | |
| 11 | + | |
| 12 | + def setUp(self): | |
| 13 | + self.vector = new_fvec(buf_size, channels) | |
| 14 | + | |
| 15 | + def tearDown(self): | |
| 16 | + del_fvec(self.vector) | |
| 17 | + | |
| 18 | + def test(self): | |
| 19 | + """ create and delete fvec """ | |
| 20 | + pass | |
| 21 | + | |
| 22 | + def test_zeroes(self): | |
| 23 | + """ check zero crossing rate on a buffer of 0. """ | |
| 24 | + self.assertEqual(0., zero_crossing_rate(self.vector)) | |
| 25 | + | |
| 26 | + def test_ones(self): | |
| 27 | + """ check zero crossing rate on a buffer of 1. """ | |
| 28 | + for index in range(buf_size): | |
| 29 | + for channel in range(channels): | |
| 30 | + fvec_write_sample(self.vector, 1., channel, index) | |
| 31 | + self.assertEqual(0., zero_crossing_rate(self.vector)) | |
| 32 | + | |
| 33 | + def test_impulse(self): | |
| 34 | + """ check zero crossing rate on a buffer with an impulse """ | |
| 35 | + fvec_write_sample(self.vector, 1., 0, buf_size / 2) | |
| 36 | + self.assertEqual(0., zero_crossing_rate(self.vector)) | |
| 37 | + | |
| 38 | + def test_negative_impulse(self): | |
| 39 | + """ check zero crossing rate on a buffer with a negative impulse """ | |
| 40 | + fvec_write_sample(self.vector, -1., 0, buf_size / 2) | |
| 41 | + self.assertEqual(2./buf_size, zero_crossing_rate(self.vector)) | |
| 42 | + | |
| 43 | + def test_single(self): | |
| 44 | + """ check zero crossing rate on single crossing """ | |
| 45 | + fvec_write_sample(self.vector, +1., 0, buf_size / 2 - 1) | |
| 46 | + fvec_write_sample(self.vector, -1., 0, buf_size / 2) | |
| 47 | + self.assertEqual(2./buf_size, zero_crossing_rate(self.vector)) | |
| 48 | + | |
| 49 | + def test_single_with_gap(self): | |
| 50 | + """ check zero crossing rate on single crossing with a gap""" | |
| 51 | + fvec_write_sample(self.vector, +1., 0, buf_size / 2 - 2) | |
| 52 | + fvec_write_sample(self.vector, -1., 0, buf_size / 2) | |
| 53 | + self.assertEqual(2./buf_size, zero_crossing_rate(self.vector)) | |
| 54 | + | |
| 55 | +if __name__ == '__main__': | |
| 56 | + unittest.main() | |