Showing the changes to python/tests/test_fvec.py (1 of 21 files). Show all
Unified · Split
| @@ -0,0 +1,135 @@ | ||
| 1 | +#! /usr/bin/env python | |
| 2 | + | |
| 3 | +from numpy.testing import TestCase, run_module_suite | |
| 4 | +from numpy.testing import assert_equal, assert_almost_equal | |
| 5 | +from aubio import fvec, zero_crossing_rate, alpha_norm, min_removal | |
| 6 | +from numpy import array, shape | |
| 7 | + | |
| 8 | +class aubio_fvec_test_case(TestCase): | |
| 9 | + | |
| 10 | + def test_vector_created_with_zeroes(self): | |
| 11 | + a = fvec(10) | |
| 12 | + a | |
| 13 | + shape(a) | |
| 14 | + a[0] | |
| 15 | + #del a | |
| 16 | + assert_equal(array(a), 0.) | |
| 17 | + | |
| 18 | + def test_vector_create_with_list(self): | |
| 19 | + a = fvec([0,1,2,3]) | |
| 20 | + assert_equal (range(4), a) | |
| 21 | + | |
| 22 | + def test_vector_assign_element(self): | |
| 23 | + a = fvec() | |
| 24 | + a[0] = 1 | |
| 25 | + assert_equal(a[0], 1) | |
| 26 | + | |
| 27 | + def test_vector_assign_element_end(self): | |
| 28 | + a = fvec() | |
| 29 | + a[-1] = 1 | |
| 30 | + assert_equal(a[-1], 1) | |
| 31 | + assert_equal(a[len(a)-1], 1) | |
| 32 | + | |
| 33 | + def test_vector(self): | |
| 34 | + a = fvec() | |
| 35 | + a, len(a) #a.length | |
| 36 | + a[0] | |
| 37 | + array(a) | |
| 38 | + a = fvec(10) | |
| 39 | + a = fvec(1) | |
| 40 | + a.T | |
| 41 | + array(a).T | |
| 42 | + a = range(len(a)) | |
| 43 | + | |
| 44 | + def test_wrong_values(self): | |
| 45 | + self.assertRaises (ValueError, fvec, -10) | |
| 46 | + | |
| 47 | + a = fvec(2) | |
| 48 | + self.assertRaises (IndexError, a.__getitem__, 3) | |
| 49 | + self.assertRaises (IndexError, a.__getitem__, 2) | |
| 50 | + | |
| 51 | + def test_alpha_norm_of_fvec(self): | |
| 52 | + a = fvec(2) | |
| 53 | + self.assertEquals (alpha_norm(a, 1), 0) | |
| 54 | + a[0] = 1 | |
| 55 | + self.assertEquals (alpha_norm(a, 1), 0.5) | |
| 56 | + a[1] = 1 | |
| 57 | + self.assertEquals (alpha_norm(a, 1), 1) | |
| 58 | + a = array([0, 1], dtype='float32') | |
| 59 | + from math import sqrt | |
| 60 | + assert_almost_equal (alpha_norm(a, 2), sqrt(2)/2.) | |
| 61 | + | |
| 62 | + def test_alpha_norm_of_none(self): | |
| 63 | + self.assertRaises (ValueError, alpha_norm, None, 1) | |
| 64 | + | |
| 65 | + def test_alpha_norm_of_array_of_float32(self): | |
| 66 | + # check scalar fails | |
| 67 | + a = array(1, dtype = 'float32') | |
| 68 | + self.assertRaises (ValueError, alpha_norm, a, 1) | |
| 69 | + # check 2d array fails | |
| 70 | + a = array([[2],[4]], dtype = 'float32') | |
| 71 | + self.assertRaises (ValueError, alpha_norm, a, 1) | |
| 72 | + # check 1d array | |
| 73 | + a = array(range(10), dtype = 'float32') | |
| 74 | + self.assertEquals (alpha_norm(a, 1), 4.5) | |
| 75 | + | |
| 76 | + def test_alpha_norm_of_array_of_int(self): | |
| 77 | + a = array(1, dtype = 'int') | |
| 78 | + self.assertRaises (ValueError, alpha_norm, a, 1) | |
| 79 | + a = array([[[1,2],[3,4]]], dtype = 'int') | |
| 80 | + self.assertRaises (ValueError, alpha_norm, a, 1) | |
| 81 | + a = array(range(10), dtype = 'int') | |
| 82 | + self.assertRaises (ValueError, alpha_norm, a, 1) | |
| 83 | + | |
| 84 | + def test_alpha_norm_of_array_of_string (self): | |
| 85 | + a = "hello" | |
| 86 | + self.assertRaises (ValueError, alpha_norm, a, 1) | |
| 87 | + | |
| 88 | + def test_zero_crossing_rate(self): | |
| 89 | + a = array([0,1,-1], dtype='float32') | |
| 90 | + assert_almost_equal (zero_crossing_rate(a), 1./3. ) | |
| 91 | + a = array([0.]*100, dtype='float32') | |
| 92 | + self.assertEquals (zero_crossing_rate(a), 0 ) | |
| 93 | + a = array([-1.]*100, dtype='float32') | |
| 94 | + self.assertEquals (zero_crossing_rate(a), 0 ) | |
| 95 | + a = array([1.]*100, dtype='float32') | |
| 96 | + self.assertEquals (zero_crossing_rate(a), 0 ) | |
| 97 | + | |
| 98 | + def test_alpha_norm_of_array_of_float64(self): | |
| 99 | + # check scalar fail | |
| 100 | + a = array(1, dtype = 'float64') | |
| 101 | + self.assertRaises (ValueError, alpha_norm, a, 1) | |
| 102 | + # check 3d array fail | |
| 103 | + a = array([[[1,2],[3,4]]], dtype = 'float64') | |
| 104 | + self.assertRaises (ValueError, alpha_norm, a, 1) | |
| 105 | + # check float64 1d array fail | |
| 106 | + a = array(range(10), dtype = 'float64') | |
| 107 | + self.assertRaises (ValueError, alpha_norm, a, 1) | |
| 108 | + # check float64 2d array fail | |
| 109 | + a = array([range(10), range(10)], dtype = 'float64') | |
| 110 | + self.assertRaises (ValueError, alpha_norm, a, 1) | |
| 111 | + | |
| 112 | + def test_fvec_min_removal_of_array(self): | |
| 113 | + a = array([20,1,19], dtype='float32') | |
| 114 | + b = min_removal(a) | |
| 115 | + assert_equal (array(b), [19, 0, 18]) | |
| 116 | + assert_equal (b, [19, 0, 18]) | |
| 117 | + assert_equal (a, b) | |
| 118 | + a[0] = 0 | |
| 119 | + assert_equal (a, b) | |
| 120 | + | |
| 121 | + def test_fvec_min_removal_of_array_float64(self): | |
| 122 | + a = array([20,1,19], dtype='float64') | |
| 123 | + self.assertRaises (ValueError, min_removal, a) | |
| 124 | + | |
| 125 | + def test_fvec_min_removal_of_fvec(self): | |
| 126 | + a = fvec(3) | |
| 127 | + a = array([20, 1, 19], dtype = 'float32') | |
| 128 | + b = min_removal(a) | |
| 129 | + assert_equal (array(b), [19, 0, 18]) | |
| 130 | + assert_equal (b, [19, 0, 18]) | |
| 131 | + assert_equal (a, b) | |
| 132 | + | |
| 133 | +if __name__ == '__main__': | |
| 134 | + from unittest import main | |
| 135 | + main() | |