#! /usr/bin/env python  from numpy.testing import TestCase, assert_equalfrom aubio import sourcefrom utils import list_all_sounds, parse_file_samplerateimport unittestfrom _tools import assert_raises, assert_equal, assert_warnsfrom _tools import parametrize, skipTest list_of_sounds = list_all_sounds('sounds')samplerates = [0, 44100, 8000, 32000]hop_sizes = [512, 1024, 64] default_test_sound = len(list_of_sounds) and list_of_sounds[0] or None all_params = []for soundfile in list_of_sounds:    for hop_size in hop_sizes:        for samplerate in samplerates:            all_params.append((hop_size, samplerate, soundfile)) no_sounds_msg = "no test sounds, add some in 'python/tests/sounds/'!" _debug = False  class Test_aubio_source_test_case(TestCase):     def setUp(self):        if not default_test_sound:            skipTest(no_sounds_msg)     def test_close_file(self):        samplerate = 0 # use native samplerate        hop_size = 256        f = source(default_test_sound, samplerate, hop_size)        f.close()     def test_close_file_twice(self):        samplerate = 0 # use native samplerate        hop_size = 256        f = source(default_test_sound, samplerate, hop_size)        f.close()        f.close()     def test_read_after_close(self):        samplerate = 0 # use native samplerate        hop_size = 256        f = source(default_test_sound, samplerate, hop_size)        read, frames = f()        f.close()        with assert_raises(RuntimeError):            read, frames = f()        with assert_raises(RuntimeError):            read, frames = f.do_multi()  class Test_aubio_source_read(object):     def read_from_source(self, f):        total_frames = 0        while True:            samples , read = f()            total_frames += read            if read < f.hop_size:                assert_equal(samples[read:], 0)                break        if _debug:            result_str = "read {:.2f}s ({:d} frames"            result_str += " in {:d} blocks at {:d}Hz) from {:s}"            result_params = total_frames / float(f.samplerate), total_frames, \                    total_frames//f.hop_size, f.samplerate, f.uri            print (result_str.format(*result_params))        return total_frames     @parametrize('hop_size, samplerate, soundfile', all_params)    def test_samplerate_hopsize(self, hop_size, samplerate, soundfile):        orig_samplerate = parse_file_samplerate(soundfile)        try:            if orig_samplerate is not None and orig_samplerate < samplerate:                # upsampling should emit a warning                with assert_warns(UserWarning):                    f = source(soundfile, samplerate, hop_size)            else:                f = source(soundfile, samplerate, hop_size)        except RuntimeError as e:            err_msg = 'failed opening with hop_s={:d}, samplerate={:d} ({:s})'            skipTest(err_msg.format(hop_size, samplerate, str(e)))        assert f.samplerate != 0        read_frames = self.read_from_source(f)        if 'f_' in soundfile and samplerate == 0:            import re            f = re.compile(r'.*_\([0:9]*f\)_.*')            match_f = re.findall('([0-9]*)f_', soundfile)            if len(match_f) == 1:                expected_frames = int(match_f[0])                assert_equal(expected_frames, read_frames)     @parametrize('p', list_of_sounds)    def test_samplerate_none(self, p):        f = source(p)        assert f.samplerate != 0        self.read_from_source(f)     @parametrize('p', list_of_sounds)    def test_samplerate_0(self, p):        f = source(p, 0)        assert f.samplerate != 0        self.read_from_source(f)     @parametrize('p', list_of_sounds)    def test_zero_hop_size(self, p):        f = source(p, 0, 0)        assert f.samplerate != 0        assert f.hop_size != 0        self.read_from_source(f)     @parametrize('p', list_of_sounds)    def test_seek_to_half(self, p):        from random import randint        f = source(p, 0, 0)        assert f.samplerate != 0        assert f.hop_size != 0        a = self.read_from_source(f)        c = randint(0, a)        f.seek(c)        b = self.read_from_source(f)        assert a == b + c     @parametrize('p', list_of_sounds)    def test_duration(self, p):        total_frames = 0        f = source(p)        duration = f.duration        while True:            _, read = f()            total_frames += read            if read < f.hop_size: break        assert_equal (duration, total_frames)  class Test_aubio_source_wrong_params(object):     def test_wrong_file(self):        with assert_raises(RuntimeError):            source('path_to/unexisting file.mp3') @unittest.skipIf(default_test_sound is None, no_sounds_msg)class Test_aubio_source_wrong_params_with_file(TestCase):     def test_wrong_samplerate(self):        with assert_raises(ValueError):            source(default_test_sound, -1)     def test_wrong_hop_size(self):        with assert_raises(ValueError):            source(default_test_sound, 0, -1)     def test_wrong_channels(self):        with assert_raises(ValueError):            source(default_test_sound, 0, 0, -1)     def test_wrong_seek(self):        f = source(default_test_sound)        with assert_raises(ValueError):            f.seek(-1)     def test_wrong_seek_too_large(self):        f = source(default_test_sound)        try:            with assert_raises(ValueError):                f.seek(f.duration + f.samplerate * 10)        except:            skipTest('seeking after end of stream failed raising ValueError') class Test_aubio_source_readmulti(Test_aubio_source_read):     def read_from_source(self, f):        total_frames = 0        while True:            samples, read = f.do_multi()            total_frames += read            if read < f.hop_size:                assert_equal(samples[:,read:], 0)                break        if _debug:            result_str = "read {:.2f}s ({:d} frames in {:d} channels"            result_str += " and {:d} blocks at {:d}Hz) from {:s}"            result_params = total_frames / float(f.samplerate), total_frames, \                    f.channels, int(total_frames/f.hop_size), \                    f.samplerate, f.uri            print (result_str.format(*result_params))        return total_frames class Test_aubio_source_with(object):     @parametrize('filename', list_of_sounds)    def test_read_from_mono(self, filename):        total_frames = 0        hop_size = 2048        with source(filename, 0, hop_size) as input_source:            assert_equal(input_source.hop_size, hop_size)            #assert_equal(input_source.samplerate, samplerate)            total_frames = 0            for frames in input_source:                total_frames += frames.shape[-1]            # check we read as many samples as we expected            assert_equal(total_frames, input_source.duration) if __name__ == '__main__':    from _tools import run_module_suite    run_module_suite()