ref: 2d1d5ce6adc1ba219606845700c0522f77ee9ac0
dir: /interfaces/python/test_filter.py/
from numpy.testing import TestCase, run_module_suite from numpy.testing import assert_equal, assert_almost_equal from _aubio import * from numpy import array def array_from_text_file(filename, dtype = 'float'): return array([line.split() for line in open(filename).readlines()], dtype = dtype) class aubio_filter_test_case(TestCase): def test_members(self): f = digital_filter() assert_equal ([f.channels, f.order], [1, 7]) f = digital_filter(5, 2) assert_equal ([f.channels, f.order], [2, 5]) f(fvec()) def test_cweighting_error(self): f = digital_filter (2, 1) self.assertRaises ( ValueError, f.set_c_weighting, 44100 ) f = digital_filter (8, 1) self.assertRaises ( ValueError, f.set_c_weighting, 44100 ) f = digital_filter (5, 1) self.assertRaises ( ValueError, f.set_c_weighting, 4000 ) f = digital_filter (5, 1) self.assertRaises ( ValueError, f.set_c_weighting, 193000 ) f = digital_filter (7, 1) self.assertRaises ( ValueError, f.set_a_weighting, 193000 ) f = digital_filter (5, 1) self.assertRaises ( ValueError, f.set_a_weighting, 192000 ) def test_c_weighting(self): expected = array_from_text_file('c_weighting_test_simple.expected') f = digital_filter(5, 1) f.set_c_weighting(44100) v = fvec(32) v[0][12] = .5 u = f(v) assert_almost_equal (expected[1], u) def test_a_weighting(self): expected = array_from_text_file('a_weighting_test_simple.expected') f = digital_filter(7, 1) f.set_a_weighting(44100) v = fvec(32) v[0][12] = .5 u = f(v) assert_almost_equal (expected[1], u) def test_a_weighting_parted(self): expected = array_from_text_file('a_weighting_test_simple.expected') f = digital_filter(7, 1) f.set_a_weighting(44100) v = fvec(16) v[0][12] = .5 u = f(v) assert_almost_equal (expected[1][:16], u) # one more time v = fvec(16) u = f(v) assert_almost_equal (expected[1][16:], u) if __name__ == '__main__': from unittest import main main()