source: python/tests/test_note2midi.py @ 51b5f9c

feature/autosinkfeature/constantqfeature/pitchshiftfeature/timestretch
Last change on this file since 51b5f9c was 7fd92ca, checked in by Paul Brossier <piem@piem.org>, 13 months ago

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

  • Property mode set to 100755
File size: 4.5 KB
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1#! /usr/bin/env python
2# -*- coding: utf-8 -*-
3
4from __future__ import unicode_literals
5
6from aubio import note2midi, freq2note, note2freq, float_type
7from numpy.testing import TestCase
8from _tools import parametrize, assert_raises, skipTest
9
10list_of_known_notes = (
11        ( 'C-1', 0 ),
12        ( 'C#-1', 1 ),
13        ( 'd2', 38 ),
14        ( 'C3', 48 ),
15        ( 'B3', 59 ),
16        ( 'B#3', 60 ),
17        ( 'C♯4', 61 ),
18        ( 'A4', 69 ),
19        ( 'A#4', 70 ),
20        ( 'A♯4', 70 ),
21        ( 'A\u266f4', 70 ),
22        ( 'Bb4', 70 ),
23        ( 'B♭4', 70 ),
24        ( 'B\u266d4', 70 ),
25        ( 'G8', 115 ),
26        ( 'G♯8', 116 ),
27        ( 'G9', 127 ),
28        ( 'A♮2', 45 ),
29        )
30
31list_of_known_notes_with_unicode_issues = (
32        ('C𝄪4', 62 ),
33        ('E𝄫4', 62 ),
34        )
35
36list_of_unknown_notes = (
37        ( 'G\udd2a2' ),
38        ( 'B\ufffd2' ),
39        ( 'B\u266e\u266e2' ),
40        ( 'B\u266f\u266d3' ),
41        ( 'B33' ),
42        ( 'C.3' ),
43        ( 'A' ),
44        ( '2' ),
45        )
46
47class Test_note2midi_good_values(object):
48
49    @parametrize('note, midi', list_of_known_notes)
50    def test_note2midi_known_values(self, note, midi):
51        " known values are correctly converted "
52        assert note2midi(note) == midi
53
54    @parametrize('note, midi', list_of_known_notes_with_unicode_issues)
55    def test_note2midi_known_values_with_unicode_issues(self, note, midi):
56        " difficult values are correctly converted unless expected failure "
57        try:
58            assert note2midi(note) == midi
59        except UnicodeEncodeError as e:
60            # platforms with decoding failures include:
61            # - osx: python <= 2.7.10
62            # - win: python <= 2.7.12
63            import sys
64            strmsg = "len(u'\\U0001D12A') != 1, expected decoding failure"
65            strmsg += " | upgrade to Python 3 to fix"
66            strmsg += " | {:s} | {:s} {:s}"
67            if len('\U0001D12A') != 1 and sys.version[0] == '2':
68                skipTest(strmsg.format(repr(e), sys.platform, sys.version))
69            else:
70                raise
71
72class note2midi_wrong_values(TestCase):
73
74    def test_note2midi_missing_octave(self):
75        " fails when passed only one character"
76        self.assertRaises(ValueError, note2midi, 'C')
77
78    def test_note2midi_wrong_modifier(self):
79        " fails when passed a note with an invalid modifier "
80        self.assertRaises(ValueError, note2midi, 'C.1')
81
82    def test_note2midi_another_wrong_modifier_again(self):
83        " fails when passed a note with a invalid note name "
84        self.assertRaises(ValueError, note2midi, 'CB-3')
85
86    def test_note2midi_wrong_octave(self):
87        " fails when passed a wrong octave number "
88        self.assertRaises(ValueError, note2midi, 'CBc')
89
90    def test_note2midi_out_of_range(self):
91        " fails when passed a note out of range"
92        self.assertRaises(ValueError, note2midi, 'A9')
93
94    def test_note2midi_wrong_note_name(self):
95        " fails when passed a note with a wrong name"
96        self.assertRaises(ValueError, note2midi, 'W9')
97
98    def test_note2midi_low_octave(self):
99        " fails when passed a note with a too low octave"
100        self.assertRaises(ValueError, note2midi, 'C-9')
101
102    def test_note2midi_wrong_data_type(self):
103        " fails when passed a non-string value "
104        self.assertRaises(TypeError, note2midi, 123)
105
106    def test_note2midi_wrong_data_too_long(self):
107        " fails when passed a note with a note name longer than expected"
108        self.assertRaises(ValueError, note2midi, 'CB+-3')
109
110class Test_note2midi_unknown_values(object):
111
112    @parametrize('note', list_of_unknown_notes)
113    def test_note2midi_unknown_values(self, note):
114        " unknown values throw out an error "
115        assert_raises(ValueError, note2midi, note)
116
117class freq2note_simple_test(TestCase):
118
119    def test_freq2note_above(self):
120        " make sure freq2note(441) == A4 "
121        self.assertEqual("A4", freq2note(441))
122
123    def test_freq2note_under(self):
124        " make sure freq2note(439) == A4 "
125        self.assertEqual("A4", freq2note(439))
126
127class note2freq_simple_test(TestCase):
128
129    def test_note2freq(self):
130        " make sure note2freq('A3') == 220"
131        self.assertEqual(220, note2freq("A3"))
132
133    def test_note2freq_under(self):
134        " make sure note2freq(A4) == 440"
135        if float_type == 'float32':
136            self.assertEqual(440, note2freq("A4"))
137        else:
138            self.assertLess(abs(note2freq("A4")-440), 1.e-12)
139
140if __name__ == '__main__':
141    from _tools import run_module_suite
142    run_module_suite()
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