#! /usr/bin/env python import numpy as npfrom numpy.testing import TestCase, assert_equal, assert_almost_equal from aubio import cvec, filterbank, float_typefrom utils import array_from_text_file class aubio_filterbank_test_case(TestCase):     def test_members(self):        f = filterbank(40, 512)        assert_equal ([f.n_filters, f.win_s], [40, 512])     def test_set_coeffs(self):        f = filterbank(40, 512)        r = np.random.random([40, int(512 / 2) + 1]).astype(float_type)        f.set_coeffs(r)        assert_equal (r, f.get_coeffs())     def test_phase(self):        f = filterbank(40, 512)        c = cvec(512)        c.phas[:] = np.pi        assert_equal( f(c), 0);     def test_norm(self):        f = filterbank(40, 512)        c = cvec(512)        c.norm[:] = 1        assert_equal( f(c), 0);     def test_random_norm(self):        f = filterbank(40, 512)        c = cvec(512)        c.norm[:] = np.random.random((int(512 / 2) + 1,)).astype(float_type)        assert_equal( f(c), 0)     def test_random_coeffs(self):        win_s = 128        f = filterbank(40, win_s)        c = cvec(win_s)        r = np.random.random([40, int(win_s / 2) + 1]).astype(float_type)        r /= r.sum()        f.set_coeffs(r)        c.norm[:] = np.random.random((int(win_s / 2) + 1,)).astype(float_type)        assert_equal ( f(c) < 1., True )        assert_equal ( f(c) > 0., True )     def test_mfcc_coeffs(self):        f = filterbank(40, 512)        c = cvec(512)        f.set_mel_coeffs_slaney(44100)        c.norm[:] = np.random.random((int(512 / 2) + 1,)).astype(float_type)        assert_equal ( f(c) < 1., True )        assert_equal ( f(c) > 0., True )     def test_mfcc_coeffs_16000(self):        expected = array_from_text_file('filterbank_mfcc_16000_512.expected')        f = filterbank(40, 512)        f.set_mel_coeffs_slaney(16000)        assert_almost_equal ( expected, f.get_coeffs() )     def test_mfcc_coeffs_get_coeffs(self):        f = filterbank(40, 512)        coeffs = f.get_coeffs()        self.assertIsInstance(coeffs, np.ndarray)        assert_equal (coeffs, 0)        assert_equal (np.shape(coeffs), (40, 512 / 2 + 1)) class aubio_filterbank_wrong_values(TestCase):     def test_negative_window(self):        self.assertRaises(ValueError, filterbank, 40, -20)     def test_negative_filters(self):        self.assertRaises(ValueError, filterbank, -40, 1024)     def test_filterbank_long_cvec(self):        f = filterbank(40, 512)        with self.assertRaises(ValueError):            f(cvec(1024))     def test_filterbank_short_cvec(self):        f = filterbank(40, 512)        with self.assertRaises(ValueError):            f(cvec(256)) if __name__ == '__main__':    from unittest import main    main()