3 from numpy.testing import TestCase, assert_equal, assert_almost_equal
4 from aubio import fvec, digital_filter
5 from numpy import array
6 from utils import array_from_text_file
8 class aubio_filter_test_case(TestCase):
10 def test_members(self):
12 assert_equal (f.order, 7)
14 assert_equal (f.order, 5)
17 def test_cweighting_error(self):
18 f = digital_filter (2)
19 self.assertRaises ( ValueError, f.set_c_weighting, 44100 )
20 f = digital_filter (8)
21 self.assertRaises ( ValueError, f.set_c_weighting, 44100 )
22 f = digital_filter (5)
23 self.assertRaises ( ValueError, f.set_c_weighting, 4000 )
24 f = digital_filter (5)
25 self.assertRaises ( ValueError, f.set_c_weighting, 193000 )
26 f = digital_filter (7)
27 self.assertRaises ( ValueError, f.set_a_weighting, 193000 )
28 f = digital_filter (5)
29 self.assertRaises ( ValueError, f.set_a_weighting, 192000 )
31 def test_c_weighting(self):
32 expected = array_from_text_file('c_weighting_test_simple.expected')
34 f.set_c_weighting(44100)
38 assert_almost_equal (expected[1], u)
40 def test_c_weighting_8000(self):
41 expected = array_from_text_file('c_weighting_test_simple_8000.expected')
43 f.set_c_weighting(8000)
47 assert_almost_equal (expected[1], u)
49 def test_a_weighting(self):
50 expected = array_from_text_file('a_weighting_test_simple.expected')
52 f.set_a_weighting(44100)
56 assert_almost_equal (expected[1], u)
58 def test_a_weighting_parted(self):
59 expected = array_from_text_file('a_weighting_test_simple.expected')
61 f.set_a_weighting(44100)
65 assert_almost_equal (expected[1][:16], u)
69 assert_almost_equal (expected[1][16:], u)
71 if __name__ == '__main__':
72 from unittest import main