source: python/tests/test_slicing.py @ 34d4232

feature/cnnfeature/crepefeature/pitchshiftfeature/timestretchfix/ffmpeg5
Last change on this file since 34d4232 was ab24edb, checked in by Paul Brossier <piem@piem.org>, 6 years ago

[py] [tests] start slice tests at 0
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File size: 7.4 KB
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1#! /usr/bin/env python
2
3from unittest import main
4from numpy.testing import TestCase, assert_equal
5from aubio import slice_source_at_stamps
6from .utils import count_files_in_directory, get_default_test_sound
7from .utils import count_samples_in_directory, count_samples_in_file
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,
27                output_dir = self.output_dir, create_first=True)
28
29    def test_slice_start_beyond_end(self):
30        regions_start = [i*1000 for i in range(1, n_slices)]
31        regions_start += [count_samples_in_file(self.source_file) + 1000]
32        slice_source_at_stamps(self.source_file, regions_start,
33                output_dir = self.output_dir, create_first=True)
34
35    def test_slice_start_every_blocksize(self):
36        hopsize = 200
37        regions_start = [i*hopsize for i in range(0, n_slices)]
38        slice_source_at_stamps(self.source_file, regions_start, output_dir = self.output_dir,
39                hopsize = 200)
40
41    def test_slice_start_every_half_blocksize(self):
42        hopsize = 200
43        regions_start = [i*hopsize//2 for i in range(0, n_slices)]
44        slice_source_at_stamps(self.source_file, regions_start,
45                output_dir = self.output_dir, hopsize = 200)
46
47    def tearDown(self):
48        original_samples = count_samples_in_file(self.source_file)
49        written_samples = count_samples_in_directory(self.output_dir)
50        total_files = count_files_in_directory(self.output_dir)
51        assert_equal(n_slices, total_files,
52            "number of slices created different from expected")
53        assert_equal(written_samples, original_samples,
54            "number of samples written different from number of original samples")
55        shutil.rmtree(self.output_dir)
56
57class aubio_slicing_with_ends_test_case(TestCase):
58
59    def setUp(self):
60        self.source_file = get_default_test_sound(self)
61        self.output_dir = tempfile.mkdtemp(suffix = 'aubio_slicing_test_case')
62
63    def test_slice_start_and_ends_no_gap(self):
64        regions_start = [i*1000 for i in range(n_slices)]
65        regions_ends = [start - 1 for start in regions_start[1:]] + [1e120]
66        slice_source_at_stamps(self.source_file, regions_start, regions_ends,
67                output_dir = self.output_dir)
68        original_samples = count_samples_in_file(self.source_file)
69        written_samples = count_samples_in_directory(self.output_dir)
70        total_files = count_files_in_directory(self.output_dir)
71        assert_equal(n_slices, total_files,
72            "number of slices created different from expected")
73        assert_equal(written_samples, original_samples,
74            "number of samples written different from number of original samples")
75
76    def test_slice_start_and_ends_200_gap(self):
77        regions_start = [i*1000 for i in range(n_slices)]
78        regions_ends = [start + 199 for start in regions_start]
79        slice_source_at_stamps(self.source_file, regions_start, regions_ends,
80                output_dir = self.output_dir)
81        expected_samples = 200 * n_slices
82        written_samples = count_samples_in_directory(self.output_dir)
83        total_files = count_files_in_directory(self.output_dir)
84        assert_equal(n_slices, total_files,
85            "number of slices created different from expected")
86        assert_equal(written_samples, expected_samples,
87            "number of samples written different from number of original samples")
88
89    def test_slice_start_and_ends_overlaping(self):
90        regions_start = [i*1000 for i in range(n_slices)]
91        regions_ends = [start + 1199 for start in regions_start]
92        slice_source_at_stamps(self.source_file, regions_start, regions_ends,
93                output_dir = self.output_dir)
94        expected_samples = 1200 * n_slices
95        written_samples = count_samples_in_directory(self.output_dir)
96        total_files = count_files_in_directory(self.output_dir)
97        assert_equal(n_slices, total_files,
98            "number of slices created different from expected")
99        assert_equal(written_samples, expected_samples,
100            "number of samples written different from number of original samples")
101
102    def test_slice_start_and_ends_with_missing_end(self):
103        regions_start = [i*1000 for i in range(n_slices)]
104        regions_ends = [r-1 for r in regions_start[1:]]
105        slice_source_at_stamps(self.source_file, regions_start, regions_ends,
106                output_dir = self.output_dir)
107        written_samples = count_samples_in_directory(self.output_dir)
108        original_samples = count_samples_in_file(self.source_file)
109        total_files = count_files_in_directory(self.output_dir)
110        assert_equal(n_slices, total_files,
111            "number of slices created different from expected")
112        assert_equal(written_samples, original_samples,
113            "number of samples written different from number of original samples")
114
115    def tearDown(self):
116        shutil.rmtree(self.output_dir)
117
118
119class aubio_slicing_wrong_starts_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_start_empty(self):
126        regions_start = []
127        self.assertRaises(ValueError,
128                slice_source_at_stamps,
129                self.source_file, regions_start, output_dir = self.output_dir)
130
131    def test_slice_start_none(self):
132        regions_start = None
133        self.assertRaises(ValueError,
134                slice_source_at_stamps,
135                self.source_file, regions_start, output_dir = self.output_dir)
136
137    def tearDown(self):
138        shutil.rmtree(self.output_dir)
139
140class aubio_slicing_wrong_ends_test_case(TestCase):
141
142    def setUp(self):
143        self.source_file = get_default_test_sound(self)
144        self.output_dir = tempfile.mkdtemp(suffix = 'aubio_slicing_test_case')
145
146    def test_slice_wrong_ends(self):
147        regions_start = [i*1000 for i in range(1, n_slices)]
148        regions_end = []
149        self.assertRaises (ValueError,
150            slice_source_at_stamps, self.source_file, regions_start, regions_end,
151                output_dir = self.output_dir)
152
153    def test_slice_no_ends(self):
154        regions_start = [i*1000 for i in range(1, n_slices)]
155        regions_end = None
156        slice_source_at_stamps (self.source_file, regions_start, regions_end,
157                output_dir = self.output_dir, create_first=True)
158        total_files = count_files_in_directory(self.output_dir)
159        assert_equal(n_slices, total_files,
160            "number of slices created different from expected")
161        original_samples = count_samples_in_file(self.source_file)
162        written_samples = count_samples_in_directory(self.output_dir)
163        assert_equal(written_samples, original_samples,
164            "number of samples written different from number of original samples")
165
166    def tearDown(self):
167        shutil.rmtree(self.output_dir)
168
169if __name__ == '__main__':
170    main()
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