source: python/tests/test_source.py @ 7fd92ca

feature/autosinkfeature/constantqfeature/pitchshiftfeature/timestretch
Last change on this file since 7fd92ca was 7fd92ca, checked in by Paul Brossier <piem@piem.org>, 2 years ago

[tests] use run_module_suite so tests can run when pytest is not installed

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File size: 6.2 KB
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1#! /usr/bin/env python
2
3
4from numpy.testing import TestCase, assert_equal
5from aubio import source
6from utils import list_all_sounds
7import unittest
8from _tools import parametrize, assert_raises, assert_equal, skipTest
9
10list_of_sounds = list_all_sounds('sounds')
11samplerates = [0, 44100, 8000, 32000]
12hop_sizes = [512, 1024, 64]
13
14default_test_sound = len(list_of_sounds) and list_of_sounds[0] or None
15
16all_params = []
17for soundfile in list_of_sounds:
18    for hop_size in hop_sizes:
19        for samplerate in samplerates:
20            all_params.append((hop_size, samplerate, soundfile))
21
22no_sounds_msg = "no test sounds, add some in 'python/tests/sounds/'!"
23
24_debug = False
25
26class Test_aubio_source_test_case(object):
27
28    @parametrize('filename', list_of_sounds)
29    def test_close_file(self, filename):
30        samplerate = 0 # use native samplerate
31        hop_size = 256
32        f = source(filename, samplerate, hop_size)
33        f.close()
34
35    @parametrize('filename', list_of_sounds)
36    def test_close_file_twice(self, filename):
37        samplerate = 0 # use native samplerate
38        hop_size = 256
39        f = source(filename, samplerate, hop_size)
40        f.close()
41        f.close()
42
43class Test_aubio_source_read(object):
44
45    def read_from_source(self, f):
46        total_frames = 0
47        while True:
48            samples , read = f()
49            total_frames += read
50            if read < f.hop_size:
51                assert_equal(samples[read:], 0)
52                break
53        if _debug:
54            result_str = "read {:.2f}s ({:d} frames"
55            result_str += " in {:d} blocks at {:d}Hz) from {:s}"
56            result_params = total_frames / float(f.samplerate), total_frames, \
57                    total_frames//f.hop_size, f.samplerate, f.uri
58            print (result_str.format(*result_params))
59        return total_frames
60
61    @parametrize('hop_size, samplerate, soundfile', all_params)
62    def test_samplerate_hopsize(self, hop_size, samplerate, soundfile):
63        try:
64            f = source(soundfile, samplerate, hop_size)
65        except RuntimeError as e:
66            err_msg = 'failed opening with hop_s={:d}, samplerate={:d} ({:s})'
67            skipTest(err_msg.format(hop_size, samplerate, str(e)))
68        assert f.samplerate != 0
69        read_frames = self.read_from_source(f)
70        if 'f_' in soundfile and samplerate == 0:
71            import re
72            f = re.compile(r'.*_\([0:9]*f\)_.*')
73            match_f = re.findall('([0-9]*)f_', soundfile)
74            if len(match_f) == 1:
75                expected_frames = int(match_f[0])
76                assert_equal(expected_frames, read_frames)
77
78    @parametrize('p', list_of_sounds)
79    def test_samplerate_none(self, p):
80        f = source(p)
81        assert f.samplerate != 0
82        self.read_from_source(f)
83
84    @parametrize('p', list_of_sounds)
85    def test_samplerate_0(self, p):
86        f = source(p, 0)
87        assert f.samplerate != 0
88        self.read_from_source(f)
89
90    @parametrize('p', list_of_sounds)
91    def test_zero_hop_size(self, p):
92        f = source(p, 0, 0)
93        assert f.samplerate != 0
94        assert f.hop_size != 0
95        self.read_from_source(f)
96
97    @parametrize('p', list_of_sounds)
98    def test_seek_to_half(self, p):
99        from random import randint
100        f = source(p, 0, 0)
101        assert f.samplerate != 0
102        assert f.hop_size != 0
103        a = self.read_from_source(f)
104        c = randint(0, a)
105        f.seek(c)
106        b = self.read_from_source(f)
107        assert a == b + c
108
109    @parametrize('p', list_of_sounds)
110    def test_duration(self, p):
111        total_frames = 0
112        f = source(p)
113        duration = f.duration
114        while True:
115            _, read = f()
116            total_frames += read
117            if read < f.hop_size: break
118        assert_equal (duration, total_frames)
119
120
121class Test_aubio_source_wrong_params(object):
122
123    def test_wrong_file(self):
124        with assert_raises(RuntimeError):
125            source('path_to/unexisting file.mp3')
126
127@unittest.skipIf(default_test_sound is None, no_sounds_msg)
128class Test_aubio_source_wrong_params_with_file(TestCase):
129
130    def test_wrong_samplerate(self):
131        with assert_raises(ValueError):
132            source(default_test_sound, -1)
133
134    def test_wrong_hop_size(self):
135        with assert_raises(ValueError):
136            source(default_test_sound, 0, -1)
137
138    def test_wrong_channels(self):
139        with assert_raises(ValueError):
140            source(default_test_sound, 0, 0, -1)
141
142    def test_wrong_seek(self):
143        f = source(default_test_sound)
144        with assert_raises(ValueError):
145            f.seek(-1)
146
147    def test_wrong_seek_too_large(self):
148        f = source(default_test_sound)
149        try:
150            with assert_raises(ValueError):
151                f.seek(f.duration + f.samplerate * 10)
152        except:
153            skipTest('seeking after end of stream failed raising ValueError')
154
155class Test_aubio_source_readmulti(Test_aubio_source_read):
156
157    def read_from_source(self, f):
158        total_frames = 0
159        while True:
160            samples, read = f.do_multi()
161            total_frames += read
162            if read < f.hop_size:
163                assert_equal(samples[:,read:], 0)
164                break
165        if _debug:
166            result_str = "read {:.2f}s ({:d} frames in {:d} channels"
167            result_str += " and {:d} blocks at {:d}Hz) from {:s}"
168            result_params = total_frames / float(f.samplerate), total_frames, \
169                    f.channels, int(total_frames/f.hop_size), \
170                    f.samplerate, f.uri
171            print (result_str.format(*result_params))
172        return total_frames
173
174class Test_aubio_source_with(object):
175
176    @parametrize('filename', list_of_sounds)
177    def test_read_from_mono(self, filename):
178        total_frames = 0
179        hop_size = 2048
180        with source(filename, 0, hop_size) as input_source:
181            assert_equal(input_source.hop_size, hop_size)
182            #assert_equal(input_source.samplerate, samplerate)
183            total_frames = 0
184            for frames in input_source:
185                total_frames += frames.shape[-1]
186            # check we read as many samples as we expected
187            assert_equal(total_frames, input_source.duration)
188
189if __name__ == '__main__':
190    from _tools import run_module_suite
191    run_module_suite()
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