ref: dfada339fa13762a469cf4dba2c154a426bbecab
dir: /python/tests/test_fvec.py/
#! /usr/bin/env python from numpy.testing import TestCase, run_module_suite from numpy.testing import assert_equal, assert_almost_equal from aubio import fvec, zero_crossing_rate, alpha_norm, min_removal from aubio import float_type from numpy import array, shape wrong_type = 'float32' if float_type == 'float64' else 'float64' default_size = 512 class aubio_fvec_test_case(TestCase): def test_vector_created_with_zeroes(self): a = fvec(10) assert a.dtype == float_type assert a.shape == (10,) assert_equal (a, 0) def test_vector_create_with_list(self): a = fvec([0,1,2,3]) assert a.dtype == float_type assert a.shape == (4,) assert_equal (list(range(4)), a) def test_vector_assign_element(self): a = fvec(default_size) a[0] = 1 assert_equal(a[0], 1) def test_vector_assign_element_end(self): a = fvec(default_size) a[-1] = 1 assert_equal(a[-1], 1) assert_equal(a[len(a)-1], 1) def test_vector(self): a = fvec() a, len(a) #a.length a[0] array(a) a = fvec(10) a = fvec(1) a.T array(a).T a = list(range(len(a))) def test_wrong_values(self): self.assertRaises (ValueError, fvec, -10) a = fvec(2) self.assertRaises (IndexError, a.__getitem__, 3) self.assertRaises (IndexError, a.__getitem__, 2) def test_alpha_norm_of_fvec(self): a = fvec(2) self.assertEqual (alpha_norm(a, 1), 0) a[0] = 1 self.assertEqual (alpha_norm(a, 1), 0.5) a[1] = 1 self.assertEqual (alpha_norm(a, 1), 1) a = array([0, 1], dtype=float_type) from math import sqrt assert_almost_equal (alpha_norm(a, 2), sqrt(2)/2.) def test_alpha_norm_of_none(self): self.assertRaises (ValueError, alpha_norm, None, 1) def test_alpha_norm_of_array_of_float32(self): # check scalar fails a = array(1, dtype = float_type) self.assertRaises (ValueError, alpha_norm, a, 1) # check 2d array fails a = array([[2],[4]], dtype = float_type) self.assertRaises (ValueError, alpha_norm, a, 1) # check 1d array a = array(range(10), dtype = float_type) self.assertEqual (alpha_norm(a, 1), 4.5) def test_alpha_norm_of_array_of_int(self): a = array(1, dtype = 'int') self.assertRaises (ValueError, alpha_norm, a, 1) a = array([[[1,2],[3,4]]], dtype = 'int') self.assertRaises (ValueError, alpha_norm, a, 1) a = array(range(10), dtype = 'int') self.assertRaises (ValueError, alpha_norm, a, 1) def test_alpha_norm_of_array_of_string (self): a = "hello" self.assertRaises (ValueError, alpha_norm, a, 1) def test_zero_crossing_rate(self): a = array([0,1,-1], dtype=float_type) assert_almost_equal (zero_crossing_rate(a), 1./3. ) a = array([0.]*100, dtype=float_type) self.assertEqual (zero_crossing_rate(a), 0 ) a = array([-1.]*100, dtype=float_type) self.assertEqual (zero_crossing_rate(a), 0 ) a = array([1.]*100, dtype=float_type) self.assertEqual (zero_crossing_rate(a), 0 ) def test_alpha_norm_of_array_of_float64(self): # check scalar fail a = array(1, dtype = wrong_type) self.assertRaises (ValueError, alpha_norm, a, 1) # check 3d array fail a = array([[[1,2],[3,4]]], dtype = wrong_type) self.assertRaises (ValueError, alpha_norm, a, 1) # check float64 1d array fail a = array(list(range(10)), dtype = wrong_type) self.assertRaises (ValueError, alpha_norm, a, 1) # check float64 2d array fail a = array([list(range(10)), list(range(10))], dtype = wrong_type) self.assertRaises (ValueError, alpha_norm, a, 1) def test_fvec_min_removal_of_array(self): a = array([20,1,19], dtype=float_type) b = min_removal(a) assert_equal (array(b), [19, 0, 18]) assert_equal (b, [19, 0, 18]) assert_equal (a, b) a[0] = 0 assert_equal (a, b) def test_fvec_min_removal_of_array_float64(self): a = array([20,1,19], dtype=wrong_type) self.assertRaises (ValueError, min_removal, a) def test_fvec_min_removal_of_fvec(self): a = fvec(3) a = array([20, 1, 19], dtype = float_type) b = min_removal(a) assert_equal (array(b), [19, 0, 18]) assert_equal (b, [19, 0, 18]) assert_equal (a, b) if __name__ == '__main__': from unittest import main main()