ref: 1e20c3f49d0624025c81e8b255edc8e7aa69ff00
dir: /python/tests/test_musicutils.py/
#! /usr/bin/env python from numpy.testing import TestCase from numpy.testing.utils import assert_equal, assert_almost_equal from numpy import cos, arange from math import pi from aubio import window, level_lin, db_spl, silence_detection, level_detection from aubio import fvec, float_type class aubio_window(TestCase): def test_accept_name_and_size(self): window("default", 1024) def test_fail_name_not_string(self): try: window(10, 1024) except ValueError as e: pass else: self.fail('non-string window type does not raise a ValueError') def test_fail_size_not_int(self): try: window("default", "default") except ValueError as e: pass else: self.fail('non-integer window length does not raise a ValueError') def test_compute_hanning_1024(self): size = 1024 aubio_window = window("hanning", size) numpy_window = .5 - .5 * cos(2. * pi * arange(size) / size) assert_almost_equal(aubio_window, numpy_window) class aubio_level_lin(TestCase): def test_accept_fvec(self): level_lin(fvec(1024)) def test_fail_not_fvec(self): try: level_lin("default") except ValueError as e: pass else: self.fail('non-number input phase does not raise a TypeError') def test_zeros_is_zeros(self): assert_equal(level_lin(fvec(1024)), 0.) def test_minus_ones_is_one(self): from numpy import ones assert_equal(level_lin(-ones(1024, dtype = float_type)), 1.) class aubio_db_spl(TestCase): def test_accept_fvec(self): db_spl(fvec(1024)) def test_fail_not_fvec(self): try: db_spl("default") except ValueError as e: pass else: self.fail('non-number input phase does not raise a TypeError') def test_zeros_is_inf(self): from math import isinf assert isinf(db_spl(fvec(1024))) def test_minus_ones_is_zero(self): from numpy import ones assert_equal(db_spl(-ones(1024, dtype = float_type)), 0.) class aubio_silence_detection(TestCase): def test_accept_fvec(self): silence_detection(fvec(1024), -70.) def test_fail_not_fvec(self): try: silence_detection("default", -70) except ValueError as e: pass else: self.fail('non-number input phase does not raise a TypeError') def test_zeros_is_one(self): from math import isinf assert silence_detection(fvec(1024), -70) == 1 def test_minus_ones_is_zero(self): from numpy import ones assert silence_detection(ones(1024, dtype = float_type), -70) == 0 class aubio_level_detection(TestCase): def test_accept_fvec(self): level_detection(fvec(1024), -70.) def test_fail_not_fvec(self): try: level_detection("default", -70) except ValueError as e: pass else: self.fail('non-number input phase does not raise a TypeError') def test_zeros_is_one(self): from math import isinf assert level_detection(fvec(1024), -70) == 1 def test_minus_ones_is_zero(self): from numpy import ones assert level_detection(ones(1024, dtype = float_type), -70) == 0 if __name__ == '__main__': from unittest import main main()