python/tests: fix most prospect warnings
[aubio.git] / python / tests / test_source.py
1 #! /usr/bin/env python
2
3 from nose2 import main
4 from nose2.tools import params
5 from numpy.testing import TestCase
6 from aubio import source
7 from utils import list_all_sounds
8
9 list_of_sounds = list_all_sounds('sounds')
10 samplerates = [0, 44100, 8000, 32000]
11 hop_sizes = [512, 1024, 64]
12
13 path = None
14
15 all_params = []
16 for soundfile in list_of_sounds:
17     for hop_size in hop_sizes:
18         for samplerate in samplerates:
19             all_params.append((hop_size, samplerate, soundfile))
20
21
22 class aubio_source_test_case_base(TestCase):
23
24     def setUp(self):
25         if not len(list_of_sounds): self.skipTest('add some sound files in \'python/tests/sounds\'')
26         self.default_test_sound = list_of_sounds[0]
27
28 class aubio_source_test_case(aubio_source_test_case_base):
29
30     def test_close_file(self):
31         samplerate = 0 # use native samplerate
32         hop_size = 256
33         for p in list_of_sounds:
34             f = source(p, samplerate, hop_size)
35             f.close()
36
37     def test_close_file_twice(self):
38         samplerate = 0 # use native samplerate
39         hop_size = 256
40         for p in list_of_sounds:
41             f = source(p, samplerate, hop_size)
42             f.close()
43             f.close()
44
45 class aubio_source_read_test_case(aubio_source_test_case_base):
46
47     def read_from_source(self, f):
48         total_frames = 0
49         while True:
50             _ , read = f()
51             total_frames += read
52             if read < f.hop_size: break
53         #result_str = "read {:.2f}s ({:d} frames in {:d} blocks at {:d}Hz) from {:s}"
54         #result_params = total_frames / float(f.samplerate), total_frames, total_frames//f.hop_size, f.samplerate, f.uri
55         #print (result_str.format(*result_params))
56         return total_frames
57
58     @params(*all_params)
59     def test_samplerate_hopsize(self, hop_size, samplerate, soundfile):
60         try:
61             f = source(soundfile, samplerate, hop_size)
62         except RuntimeError as e:
63             self.skipTest('failed opening with hop_s = {:d}, samplerate = {:d} ({:s})'.format(hop_size, samplerate, str(e)))
64         assert f.samplerate != 0
65         self.read_from_source(f)
66
67     @params(*list_of_sounds)
68     def test_samplerate_none(self, p):
69         f = source(p)
70         assert f.samplerate != 0
71         self.read_from_source(f)
72
73     @params(*list_of_sounds)
74     def test_samplerate_0(self, p):
75         f = source(p, 0)
76         assert f.samplerate != 0
77         self.read_from_source(f)
78
79     @params(*list_of_sounds)
80     def test_zero_hop_size(self, p):
81         f = source(p, 0, 0)
82         assert f.samplerate != 0
83         assert f.hop_size != 0
84         self.read_from_source(f)
85
86     @params(*list_of_sounds)
87     def test_seek_to_half(self, p):
88         from random import randint
89         f = source(p, 0, 0)
90         assert f.samplerate != 0
91         assert f.hop_size != 0
92         a = self.read_from_source(f)
93         c = randint(0, a)
94         f.seek(c)
95         b = self.read_from_source(f)
96         assert a == b + c
97
98     @params(*list_of_sounds)
99     def test_duration(self, p):
100         total_frames = 0
101         f = source(p)
102         duration = f.duration
103         while True:
104             _, read = f()
105             total_frames += read
106             if read < f.hop_size: break
107         self.assertEqual(duration, total_frames)
108
109
110 class aubio_source_test_wrong_params(TestCase):
111
112     def test_wrong_file(self):
113         with self.assertRaises(RuntimeError):
114             source('path_to/unexisting file.mp3')
115
116 class aubio_source_test_wrong_params_with_file(aubio_source_test_case_base):
117
118     def test_wrong_samplerate(self):
119         with self.assertRaises(ValueError):
120             source(self.default_test_sound, -1)
121
122     def test_wrong_hop_size(self):
123         with self.assertRaises(ValueError):
124             source(self.default_test_sound, 0, -1)
125
126     def test_wrong_channels(self):
127         with self.assertRaises(ValueError):
128             source(self.default_test_sound, 0, 0, -1)
129
130     def test_wrong_seek(self):
131         f = source(self.default_test_sound)
132         with self.assertRaises(ValueError):
133             f.seek(-1)
134
135     def test_wrong_seek_too_large(self):
136         f = source(self.default_test_sound)
137         try:
138             with self.assertRaises(ValueError):
139                 f.seek(f.duration + f.samplerate * 10)
140         except AssertionError:
141             self.skipTest('seeking after end of stream failed raising ValueError')
142
143 class aubio_source_readmulti_test_case(aubio_source_read_test_case):
144
145     def read_from_source(self, f):
146         total_frames = 0
147         while True:
148             _, read = f.do_multi()
149             total_frames += read
150             if read < f.hop_size: break
151         #result_str = "read {:.2f}s ({:d} frames in {:d} channels and {:d} blocks at {:d}Hz) from {:s}"
152         #result_params = total_frames / float(f.samplerate), total_frames, f.channels, int(total_frames/f.hop_size), f.samplerate, f.uri
153         #print (result_str.format(*result_params))
154         return total_frames
155
156 if __name__ == '__main__':
157     main()