#! /usr/bin/env python from unittest import mainimport numpy as npfrom numpy.testing import TestCase, assert_equal, assert_almost_equalfrom aubio import fvec, zero_crossing_rate, alpha_norm, min_removalfrom aubio import float_type 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()        len(a)        _ = a[0]        np.array(a)        a = fvec(1)        a = fvec(10)        _ = a.T class aubio_fvec_wrong_values(TestCase):     def test_negative_length(self):        """ test creating fvec with negative length fails (pure python) """        self.assertRaises(ValueError, fvec, -10)     def test_zero_length(self):        """ test creating fvec with zero length fails (pure python) """        self.assertRaises(ValueError, fvec, 0)     def test_out_of_bound(self):        """ test assiging fvec out of bounds fails (pure python) """        a = fvec(2)        self.assertRaises(IndexError, a.__getitem__, 3)        self.assertRaises(IndexError, a.__getitem__, 2) class aubio_wrong_fvec_input(TestCase):    """ uses min_removal to test PyAubio_IsValidVector """     def test_no_input(self):        self.assertRaises(TypeError, min_removal)     def test_none(self):        self.assertRaises(ValueError, min_removal, None)     def test_wrong_scalar(self):        a = np.array(10, dtype=float_type)        self.assertRaises(ValueError, min_removal, a)     def test_wrong_dimensions(self):        a = np.array([[[1, 2], [3, 4]]], dtype=float_type)        self.assertRaises(ValueError, min_removal, a)     def test_wrong_array_size(self):        x = np.array([], dtype=float_type)        self.assertRaises(ValueError, min_removal, x)     def test_wrong_type(self):        a = np.zeros(10, dtype=wrong_type)        self.assertRaises(ValueError, min_removal, a)     def test_wrong_list_input(self):        self.assertRaises(ValueError, min_removal, [0., 1.])     def test_good_input(self):        a = np.zeros(10, dtype=float_type)        assert_equal(np.zeros(10, dtype=float_type), min_removal(a)) class aubio_alpha_norm(TestCase):     def test_alpha_norm_of_random(self):        x = np.random.rand(1024).astype(float_type)        alpha = np.random.rand() * 5.        x_alpha_norm = (np.sum(np.abs(x)**alpha)/len(x))**(1/alpha)        assert_almost_equal(alpha_norm(x, alpha), x_alpha_norm, decimal = 4) class aubio_zero_crossing_rate_test(TestCase):     def test_zero_crossing_rate(self):        a = np.array([0, 1, -1], dtype=float_type)        assert_almost_equal(zero_crossing_rate(a), 1./3.)     def test_zero_crossing_rate_zeros(self):        a = np.zeros(100, dtype=float_type)        self.assertEqual(zero_crossing_rate(a), 0)     def test_zero_crossing_rate_minus_ones(self):        a = np.ones(100, dtype=float_type)        self.assertEqual(zero_crossing_rate(a), 0)     def test_zero_crossing_rate_plus_ones(self):        a = np.ones(100, dtype=float_type)        self.assertEqual(zero_crossing_rate(a), 0) class aubio_fvec_min_removal(TestCase):     def test_fvec_min_removal_of_array(self):        a = np.array([20, 1, 19], dtype=float_type)        b = min_removal(a)        assert_equal(b, [19, 0, 18]) class aubio_fvec_test_memory(TestCase):     def test_pass_to_numpy(self):        a = fvec(10)        a[:] = 1.        b = a        del a        assert_equal(b, 1.)        c = fvec(10)        c = b        del b        assert_equal(c, 1.)        del c if __name__ == '__main__':    main()