ref: 29693d07736a0b1b2f980e2a6818f15a88fbd7c7
dir: /python/tests/test_filter.py/
#! /usr/bin/env python from numpy.testing import TestCase, assert_equal, assert_almost_equal from aubio import fvec, digital_filter from numpy import array from utils import array_from_text_file class aubio_filter_test_case(TestCase): def test_members(self): f = digital_filter() assert_equal (f.order, 7) f = digital_filter(5) assert_equal (f.order, 5) f(fvec()) def test_cweighting_error(self): f = digital_filter (2) self.assertRaises ( ValueError, f.set_c_weighting, 44100 ) f = digital_filter (8) self.assertRaises ( ValueError, f.set_c_weighting, 44100 ) f = digital_filter (5) self.assertRaises ( ValueError, f.set_c_weighting, 4000 ) f = digital_filter (5) self.assertRaises ( ValueError, f.set_c_weighting, 193000 ) f = digital_filter (7) self.assertRaises ( ValueError, f.set_a_weighting, 193000 ) f = digital_filter (5) 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) f.set_c_weighting(44100) v = fvec(32) v[12] = .5 u = f(v) assert_almost_equal (expected[1], u) def test_c_weighting_8000(self): expected = array_from_text_file('c_weighting_test_simple_8000.expected') f = digital_filter(5) f.set_c_weighting(8000) v = fvec(32) v[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) f.set_a_weighting(44100) v = fvec(32) v[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) f.set_a_weighting(44100) v = fvec(16) v[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()