source: python/tests/test_slicing.py @ 1b62ee9

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since 1b62ee9 was 4320679, checked in by Paul Brossier <piem@piem.org>, 11 years ago

lib/aubio/slicing.py: allow any regions, overlaping or not, add more tests
  • Property mode set to 100755
File size: 6.3 KB
Line 
1#! /usr/bin/env python
2
3from numpy.testing import TestCase, run_module_suite
4from numpy.testing import assert_equal, assert_almost_equal
5
6from aubio import slice_source_at_stamps
7from utils import *
8
9import tempfile
10import shutil
11
12n_slices = 4
13
14class aubio_slicing_test_case(TestCase):
15
16    def setUp(self):
17        self.source_file = get_default_test_sound(self)
18        self.output_dir = tempfile.mkdtemp(suffix = 'aubio_slicing_test_case')
19
20    def test_slice_start_only(self):
21        regions_start = [i*1000 for i in range(n_slices)]
22        slice_source_at_stamps(self.source_file, regions_start, output_dir = self.output_dir)
23
24    def test_slice_start_only_no_zero(self):
25        regions_start = [i*1000 for i in range(1, n_slices)]
26        slice_source_at_stamps(self.source_file, regions_start, output_dir = self.output_dir)
27
28    def test_slice_start_beyond_end(self):
29        regions_start = [i*1000 for i in range(1, n_slices)]
30        regions_start += [count_samples_in_file(self.source_file) + 1000]
31        slice_source_at_stamps(self.source_file, regions_start, output_dir = self.output_dir)
32
33    def test_slice_start_every_blocksize(self):
34        hopsize = 200
35        regions_start = [i*hopsize for i in range(1, n_slices)]
36        slice_source_at_stamps(self.source_file, regions_start, output_dir = self.output_dir,
37                hopsize = 200)
38
39    def tearDown(self):
40        original_samples = count_samples_in_file(self.source_file)
41        written_samples = count_samples_in_directory(self.output_dir)
42        total_files = count_files_in_directory(self.output_dir)
43        assert_equal(n_slices, total_files,
44            "number of slices created different from expected")
45        assert_equal(written_samples, original_samples,
46            "number of samples written different from number of original samples")
47        shutil.rmtree(self.output_dir)
48
49class aubio_slicing_with_ends_test_case(TestCase):
50
51    def setUp(self):
52        self.source_file = get_default_test_sound(self)
53        self.output_dir = tempfile.mkdtemp(suffix = 'aubio_slicing_test_case')
54
55    def test_slice_start_and_ends_no_gap(self):
56        regions_start = [i*1000 for i in range(n_slices)]
57        regions_ends = [start - 1 for start in regions_start[1:]] + [1e120]
58        slice_source_at_stamps(self.source_file, regions_start, regions_ends,
59                output_dir = self.output_dir)
60        original_samples = count_samples_in_file(self.source_file)
61        written_samples = count_samples_in_directory(self.output_dir)
62        total_files = count_files_in_directory(self.output_dir)
63        assert_equal(n_slices, total_files,
64            "number of slices created different from expected")
65        assert_equal(written_samples, original_samples,
66            "number of samples written different from number of original samples")
67
68    def test_slice_start_and_ends_200_gap(self):
69        regions_start = [i*1000 for i in range(n_slices)]
70        regions_ends = [start + 199 for start in regions_start]
71        slice_source_at_stamps(self.source_file, regions_start, regions_ends,
72                output_dir = self.output_dir)
73        expected_samples = 200 * n_slices
74        written_samples = count_samples_in_directory(self.output_dir)
75        total_files = count_files_in_directory(self.output_dir)
76        assert_equal(n_slices, total_files,
77            "number of slices created different from expected")
78        assert_equal(written_samples, expected_samples,
79            "number of samples written different from number of original samples")
80
81    def test_slice_start_and_ends_overlaping(self):
82        regions_start = [i*1000 for i in range(n_slices)]
83        regions_ends = [start + 1199 for start in regions_start]
84        slice_source_at_stamps(self.source_file, regions_start, regions_ends,
85                output_dir = self.output_dir)
86        expected_samples = 1200 * n_slices
87        written_samples = count_samples_in_directory(self.output_dir)
88        total_files = count_files_in_directory(self.output_dir)
89        assert_equal(n_slices, total_files,
90            "number of slices created different from expected")
91        assert_equal(written_samples, expected_samples,
92            "number of samples written different from number of original samples")
93
94    def tearDown(self):
95        shutil.rmtree(self.output_dir)
96
97
98class aubio_slicing_wrong_starts_test_case(TestCase):
99
100    def setUp(self):
101        self.source_file = get_default_test_sound(self)
102        self.output_dir = tempfile.mkdtemp(suffix = 'aubio_slicing_test_case')
103
104    def test_slice_start_empty(self):
105        regions_start = []
106        self.assertRaises(ValueError,
107                slice_source_at_stamps,
108                self.source_file, regions_start, output_dir = self.output_dir)
109
110    def test_slice_start_none(self):
111        regions_start = None
112        self.assertRaises(ValueError,
113                slice_source_at_stamps,
114                self.source_file, regions_start, output_dir = self.output_dir)
115
116    def tearDown(self):
117        shutil.rmtree(self.output_dir)
118
119class aubio_slicing_wrong_ends_test_case(TestCase):
120
121    def setUp(self):
122        self.source_file = get_default_test_sound(self)
123        self.output_dir = tempfile.mkdtemp(suffix = 'aubio_slicing_test_case')
124
125    def test_slice_wrong_ends(self):
126        regions_start = [i*1000 for i in range(1, n_slices)]
127        regions_end = []
128        self.assertRaises (ValueError,
129            slice_source_at_stamps, self.source_file, regions_start, regions_end,
130                output_dir = self.output_dir)
131
132    def test_slice_no_ends(self):
133        regions_start = [i*1000 for i in range(1, n_slices)]
134        regions_end = None
135        slice_source_at_stamps (self.source_file, regions_start, regions_end,
136                output_dir = self.output_dir)
137        total_files = count_files_in_directory(self.output_dir)
138        assert_equal(n_slices, total_files,
139            "number of slices created different from expected")
140        original_samples = count_samples_in_file(self.source_file)
141        written_samples = count_samples_in_directory(self.output_dir)
142        assert_equal(written_samples, original_samples,
143            "number of samples written different from number of original samples")
144
145    def tearDown(self):
146        shutil.rmtree(self.output_dir)
147
148if __name__ == '__main__':
149    from unittest import main
150    main()
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