-
Notifications
You must be signed in to change notification settings - Fork 1
/
test_parser.py
408 lines (368 loc) · 16.1 KB
/
test_parser.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
"""
To be run with pytest
"""
from parser import (MidiEvaluator, MidiPreEvaluator, time_signature)
from pytest import approx
import keysigs
#pylint: disable=missing-docstring, invalid-name, singleton-comparison
def test_pre_evaluation():
mp = MidiPreEvaluator()
mp.eval('#d - - - |')
assert mp.subbeat_lengths == [1.0] * 4
mp = MidiPreEvaluator()
mp.eval('#d - ef z |')
assert mp.subbeat_lengths == [1.0, 1.0, 0.5, 1.0]
def test_subbeat_pre_evaluation():
mp = MidiPreEvaluator()
mp.eval('#d - - - |')
assert mp.subbeat_starts == [(0.0,), (1.0,), (2.0,), (3.0,)]
mp = MidiPreEvaluator()
mp.eval('#d - ef z | -g a - (ab) |')
assert mp.subbeat_starts == [(0.0,), (1.0,), (2.0, 2.5), (3.0,),
(4.0, 4.5), (5.0,), (6.0,), (7.0,)]
mp = MidiPreEvaluator()
mp.eval('B=8 zg a - (ab) |')
assert mp.subbeat_starts == [(0.0, 0.25), (0.5,), (1.0,), (1.5,)]
mp = MidiPreEvaluator()
mp.eval('#d - ef z | B=8 -g a - (ab) |')
assert mp.subbeat_starts == [(0.0,), (1.0,), (2.0, 2.5), (3.0,),
(4.0, 4.25), (4.5,), (5.0,), (5.5,)]
def test_chord_pre_evaluation():
mp = MidiPreEvaluator()
mp.eval('(ac) - - - |')
assert mp.subbeat_lengths == [1.0] * 4
mp = MidiPreEvaluator()
mp.eval('c (ac) - - |')
assert mp.subbeat_lengths == [1.0] * 4
def test_tempo_change():
mp = MidiPreEvaluator()
mp.eval('#d - T=60 ef z |')
assert mp.subbeat_lengths == [1.0, 1.0, 0.5, 1.0]
assert mp.meta_output == [('T', 0, 120), ('T', 2, 60), ('M', 0, 4, 4, 0)]
evaluate('T=120 #d - | T=60 - - |', [(63, 0.0, 4.0)])
def test_relative_tempo_change():
mp = MidiPreEvaluator()
mp.eval('#d - t=0.5 ef z |')
assert mp.subbeat_lengths == [1.0, 1.0, 0.5, 1.0]
assert mp.meta_output == [('T', 0, 120), ('T', 2, 60), ('M', 0, 4, 4, 0)]
evaluate('T=120 #d - | t=0.5 - - |', [(63, 0.0, 4.0)])
evaluate('#d - | t=0.5 - - |', [(63, 0.0, 4.0)])
def test_keysig_insert():
mp = MidiPreEvaluator()
mp.eval('K=D #d - t=0.5 ef z |')
assert mp.subbeat_lengths == [1.0, 1.0, 0.5, 1.0]
assert mp.meta_output == [('K', 0, (2, 0), 0), ('T', 0, 120),
('T', 2, 60), ('M', 0, 4, 4, 0)]
mp = MidiPreEvaluator()
mp.eval('P=1 K=C #d - t=0.5 ef z | P=2 K=D #d - ef z |')
assert mp.meta_output[0] == ('K', 0, (0, 0), 0)
assert mp.meta_output[4] == ('K', 0, (2, 0), 1)
def test_instrument():
mp = MidiPreEvaluator()
mp.eval('I=25 K=D #d - t=0.5 ef z |')
assert mp.meta_output == [('I', 0, 25, 0, 1), ('K', 0, (2, 0), 0),
('T', 0, 120), ('T', 2, 60), ('M', 0, 4, 4, 0)]
def test_polymeters():
mp = MidiPreEvaluator()
mp.eval('P=1 c d e | P=2 B=4. efg abc |')
assert mp.meta_output == [('T', 0, 120), ('M', 0.0, 3, 4, 0),
('M', 0.0, 6, 8, 1)]
def test_beat_map():
mp = MidiPreEvaluator()
mp.eval('a b cd | e f - a |')
assert mp.beat_map == {1: [3, 4]}
m = MidiEvaluator(pitch_order=tuple('abcdefg'), ignore_velocity=True)
m.eval('a b cd | e f - a |')
assert m.beat_map == {1: (3, 4)}
def test_melody():
"""
Evaluating a melody returns a list of tuples representing note events.
Each tuple contains three numbers:
* midi pitch number
* start time in seconds relative to beginning of melody.
* end time in seconds relative to beginning of melody
"""
## Held pitch with sharp
evaluate('#d - - - |', [(63, 0.0, 4.0)])
## Same across a bar line
evaluate('#d - | - - |', [(63, 0.0, 4.0)])
## Flat, Rest pitch is None
evaluate('@e - | z - |', [(63, 0.0, 2.0), (None, 2.0, 4.0)])
## Underscore is also a rest
evaluate('@e - | _ - |', [(63, 0.0, 2.0), (None, 2.0, 4.0)])
## Divided beat, octave up
evaluate('#d - | -e - |', [(63, 0.0, 2.5,), (64, 2.5, 4.0)])
## Octave up remains for subsequent pitch
evaluate('#d - | -^e f |',
[(63, 0.0, 2.5,), (76, 2.5, 3.0), (77, 3.0, 4.0)])
## Use relative rule to keep pitches close to prior pitch
evaluate('#d - | -^e c |',
[(63, 0.0, 2.5,), (76, 2.5, 3.0), (72, 3.0, 4.0)])
evaluate('#d - | -b c |',
[(63, 0.0, 2.5,), (59, 2.5, 3.0), (60, 3.0, 4.0)])
evaluate('#d - | -b c |',
[(63, 0.0, 2.5,), (59, 2.5, 3.0), (60, 3.0, 4.0)],)
def test_barline():
""" Verify that : and | are equivalent """
evaluate('#d - | -e - |', [(63, 0.0, 2.5,), (64, 2.5, 4.0)])
evaluate('#d - : -e - :', [(63, 0.0, 2.5,), (64, 2.5, 4.0)])
## Verify roll start (: does not conflict with : as barline
evaluate('(:ab) :',
[(57, 0.0, 1.0), (59, 0.50, 1.0)],)
def test_chord():
evaluate('(ab)- c |',
[(57, 0.0, 1.0), (59, 0.0, 1.0), (60, 1.0, 2.0)],)
evaluate('c (ab)- c |',
[(60, 0, 1.0), (57, 1.0, 2.0), (59, 1.0, 2.0), (60, 2.0, 3.0)],)
evaluate('c (ab)(cd) c |',
[(60, 0, 1.0), (57, 1.0, 1.50), (59, 1.0, 1.50),
(60, 1.50, 2.0), (62, 1.50, 2.0), (60, 2.0, 3.0)],)
evaluate('(ab)(gcd) |',
[(57, 0.0, 0.50), (59, 0.0, 0.50),
(55, 0.50, 1.0), (60, 0.50, 1.0), (62, 0.50, 1.0)],)
evaluate('c (ab)(gcd) c |',
[(60, 0, 1.0),
(57, 1.0, 1.50), (59, 1.0, 1.50),
(55, 1.50, 2.0), (60, 1.50, 2.0), (62, 1.50, 2.0),
(60, 2.0, 3.0)],)
evaluate('c (ab)(gcde) c |',
[(60, 0, 1.0), (57, 1.0, 1.50), (59, 1.0, 1.50),
(55, 1.50, 2.0), (60, 1.50, 2.0),
(62, 1.50, 2.0), (64, 1.50, 2.0),
(60, 2.0, 3.0)],)
evaluate('c (ab)(g^de) c |',
[(60, 0, 1.0), (57, 1.0, 1.50), (59, 1.0, 1.50),
(55, 1.50, 2.0), (62, 1.50, 2.0), (64, 1.50, 2.0),
(60, 2.0, 3.0)],)
evaluate('c (ab)(cde) (/ab) c |',
[(60, 0, 1.0),
(57, 1.0, 1.50), (59, 1.0, 1.50),
(60, 1.50, 2.0), (62, 1.50, 2.0), (64, 1.50, 2.0),
(57, 2.0, 3.0), (59, 2.0, 3.0),
(60, 3.0, 4.0)],)
def test_polychord():
evaluate('a (-c) |', [(57, 0.0, 2.0), (60, 1.0, 2.0)],)
evaluate('a (-c) (b-) |', [(57, 0.0, 2.0),
(60, 1.0, 3.0),
(59, 2.0, 3.0)],)
evaluate('(caa^e) (z/f-z) |', [(60, 0.0, 1.0), (57, 0.0, 1.0),
(64, 0.0, 1.0), (57, 0.0, 2.0),
(None, 1.0, 2.0), (53, 1.0, 2.0),
(None, 1.0, 2.0)],)
evaluate('(aa) (f-) |', [(57, 0.0, 1.0), (57, 0.0, 2.0),
(53, 1.0, 2.0)],)
evaluate('c (ab)(g-^e) c |',
[(60, 0, 1.0),
(57, 1.0, 1.50), (59, 1.0, 2.0),
(55, 1.50, 2.0), (64, 1.50, 2.0),
(60, 2.0, 3.0)],)
evaluate('K=A@ (73) - (-#2) - |', [(60, 0.0, 2.0), (55, 0.0, 4.0),
(59, 2.0, 4.0)],
numeric=True,)
def test_roll():
evaluate('(:ab) |',
[(57, 0.0, 1.0), (59, 0.50, 1.0)],)
evaluate('(:ab) - |',
[(57, 0.0, 2.0), (59, 0.50, 2.0)],)
evaluate('c(:ab) - |',
[(60, 0.0, 0.50), (57, 0.50, 2.0), (59, 0.75, 2.0)],)
evaluate('(:abcde) - |',
[(57, 0.0, 2.0), (59, 0.2, 2.0), (60, 0.4, 2.0),
(62, 0.6, 2.0), (64, 0.8, 2.0)],)
evaluate('(:1351) 6 (572) |',
[(60, 0.0, 1.0), (64, 0.25, 1.0), (67, 0.5, 1.0), (72, 0.75, 1.0),
(69, 1.0, 2.0),
(67, 2.0, 3.0), (71, 2.0, 3.0), (74, 2.0, 3.0)],
numeric=True,)
def test_ornament():
evaluate('(~ab) |',
[(57, 0.0, 0.50), (59, 0.50, 1.0)],)
evaluate('(~ab) - |',
[(57, 0.0, 0.50), (59, 0.50, 2.0)],)
evaluate('(~ab)c (ab) |',
[(57, 0.0, 0.25), (59, 0.25, .50), (60, 0.50, 1.0),
(57, 1.0, 2.0), (59, 1.0, 2.0)],)
evaluate('(~^1717) 6 (572) |',
[(72, 0.0, 0.25), (71, 0.25, 0.5),
(72, 0.5, 0.75), (71, 0.75, 1.0),
(69, 1.0, 2.0),
(67, 2.0, 3.0), (71, 2.0, 3.0), (74, 2.0, 3.0)],
numeric=True,)
def test_comment():
evaluate('/* This is a comment! */', [])
evaluate('/* This is a comment! */ c | ', [(60, 0.0, 1.0)])
evaluate('P=1 /* */ B=4 /* */ c /* */ | ', [(60, 0.0, 1.0)])
evaluate('/* This is a comment! */ c | /* and another */', [(60, 0.0, 1.0)])
def test_numbers_as_pitches():
evaluate('#2 - | -^3 1 |',
[(63, 0.0, 2.50), (76, 2.50, 3.0), (72, 3.0, 4.0)],
numeric=True)
def test_bar_accidentals():
evaluate('c @d d | d - - |',
[(60, 0.0, 1.0), (61, 1.0, 2.0), (61, 2.0, 3.0), (62, 3.0, 6.0)])
evaluate('c @d %d | #d - - |',
[(60, 0.0, 1.0), (61, 1.0, 2.0), (62, 2.0, 3.0), (63, 3.0, 6.0)])
evaluate('c @d ##d | #d - - |',
[(60, 0.0, 1.0), (61, 1.0, 2.0), (64, 2.0, 3.0), (63, 3.0, 6.0)])
evaluate('c @d ##d | @@d - - |',
[(60, 0.0, 1.0), (61, 1.0, 2.0), (64, 2.0, 3.0), (60, 3.0, 6.0)])
def test_unicode_accidentals():
evaluate("c♭c 𝄫c♭c ♮c♯c 𝄪c♯c | c - - - |",
[(60, 0.0, 0.50), (59, 0.50, 1.0), (58, 1.0, 1.50),
(59, 1.50, 2.0), (60, 2.0, 2.50), (61, 2.50, 3.0),
(62, 3.0, 3.50), (61, 3.50, 4.0), (60, 4.0, 8.0)],)
def test_numeric_accidentals():
evaluate("K=C 1♭1 𝄫1♭1 ♮1♯1 𝄪1♯1 | 1 - - - |",
[(60, 0.0, 0.50), (59, 0.50, 1.0), (58, 1.0, 1.50),
(59, 1.50, 2.0), (60, 2.0, 2.50), (61, 2.50, 3.0),
(62, 3.0, 3.50), (61, 3.50, 4.0), (60, 4.0, 8.0)],
numeric=True)
evaluate("K=c 1♭1 𝄫1♭1 ♮1♯1 𝄪1♯1 | 1 - - - |",
[(60, 0.0, 0.50), (59, 0.50, 1.0), (58, 1.0, 1.50),
(59, 1.50, 2.0), (60, 2.0, 2.50), (61, 2.50, 3.0),
(62, 3.0, 3.50), (61, 3.50, 4.0), (60, 4.0, 8.0)],
numeric=True)
evaluate("K=B 1♭1 𝄫1♭1 ♮1♯1 𝄪1♯1 | 1 - - - |",
[(59, 0.0, 0.50), (58, 0.50, 1.0), (57, 1.0, 1.50),
(58, 1.50, 2.0), (59, 2.0, 2.50), (60, 2.50, 3.0),
(61, 3.0, 3.50), (60, 3.50, 4.0), (59, 4.0, 8.0)],
numeric=True)
evaluate("K=b 1♭1 𝄫1♭1 ♮1♯1 𝄪1♯1 | 1 - - - |",
[(59, 0.0, 0.50), (58, 0.50, 1.0), (57, 1.0, 1.50),
(58, 1.50, 2.0), (59, 2.0, 2.50), (60, 2.50, 3.0),
(61, 3.0, 3.50), (60, 3.50, 4.0), (59, 4.0, 8.0)],
numeric=True)
evaluate("K=C@ 1♭1 𝄫1♭1 ♮1♯1 𝄪1♯1 | 1 - - - |",
[(59, 0.0, 0.50), (58, 0.50, 1.0), (57, 1.0, 1.50),
(58, 1.50, 2.0), (59, 2.0, 2.50), (60, 2.50, 3.0),
(61, 3.0, 3.50), (60, 3.50, 4.0), (59, 4.0, 8.0)],
numeric=True)
evaluate("K=c 7♭7 𝄫7♭7 ♮7♯7 𝄪7♯7 | 7 - - - |",
[(58, 0.0, 0.50), (58, 0.50, 1.0), (57, 1.0, 1.50),
(58, 1.50, 2.0), (59, 2.0, 2.50), (60, 2.50, 3.0),
(61, 3.0, 3.50), (60, 3.50, 4.0), (58, 4.0, 8.0)],
numeric=True)
def test_pitchname_interval_ascending():
m = MidiEvaluator()
assert m.pitchname_interval_ascending('c', 'c') == 1 # unison
assert m.pitchname_interval_ascending('b', 'c') == 2 # second
assert m.pitchname_interval_ascending('d', 'g') == 4 # 4th
assert m.pitchname_interval_ascending('g', 'd') == 5 # 5th
assert m.pitchname_interval_ascending('a', 'g') == 7 # 7th
def test_octave_change():
m = MidiEvaluator()
assert m.octave_change('c', 'c') == 0
assert m.octave_change('c', 'b') == -1
assert m.octave_change('g', 'c') == 1
assert m.octave_change('g', 'b') == 0
assert m.octave_change('g', 'd') == 0
def test_midisigs():
assert keysigs.MIDISIGS['a'] == (0, 1)
assert keysigs.MIDISIGS['a@'] == (-7, 1)
assert keysigs.MIDISIGS['A'] == (3, 0)
assert keysigs.MIDISIGS['A@'] == (-4, 0)
def test_get_key_alteration():
assert keysigs.get_alteration('c', 'C') == 0
assert keysigs.get_alteration('c', 'D') == 1
assert keysigs.get_alteration('c', 'a@') == -1
assert keysigs.get_alteration('1', 'C') == 0
assert keysigs.get_alteration('1', 'D') == 2
assert keysigs.get_alteration('1', 'a@') == -4
def test_key():
evaluate('K=D c f |',
[(61, 0.0, 1.0), (66, 1.0, 2.0)],)
evaluate('K=b c f |',
[(61, 0.0, 1.0), (66, 1.0, 2.0)],)
evaluate('K=D 7 3 |',
[(61, 0.0, 1.0), (66, 1.0, 2.0)],
numeric=True)
evaluate('K=b 7 3 | K=B 7 3 |',
[(57, 0.0, 1.0), (62, 1.0, 2.0), (58, 2.0, 3.0), (63, 3.0, 4.0)],
numeric=True)
evaluate('K=C@ c f |',
[(59, 0.0, 1.0), (64, 1.0, 2.0)],)
evaluate('K=c# c f |',
[(61, 0.0, 1.0), (66, 1.0, 2.0)],)
evaluate('K=e@ %d d | d d |',
[(62, 0.0, 1.0), (62, 1.0, 2.0), (61, 2.0, 3.0), (61, 3.0, 4.0)],
numeric=False)
evaluate('K=e@ %7 7 | 7 #4 @7|',
[(62, 0.0, 1.0), (62, 1.0, 2.0),
(61, 2.0, 3.0), (57, 3.0, 4.0), (61, 4.0, 5.0)],
numeric=True)
def test_velocity():
evaluate('c d |',
[(60, 0.0, 1.0, 0.8, 1), (62.0, 1.0, 2.0, 0.8, 1)],
ignore_velocity=False)
evaluate('c V=0.9 d |',
[(60, 0.0, 1.0, 0.8, 1), (62.0, 1.0, 2.0, 0.9, 1)],
ignore_velocity=False)
def test_de_emphasis():
evaluate('D=0.125 c d |',
[(60, 0.0, 1.0, 0.8, 1), (62.0, 1.0, 2.0, 0.7, 1)],
ignore_velocity=False)
evaluate('D=0.125 c d | e f |',
[(60, 0.0, 1.0, 0.8, 1), (62.0, 1.0, 2.0, 0.7, 1),
(64, 2.0, 3.0, 0.8, 1), (65.0, 3.0, 4.0, 0.7, 1)],
ignore_velocity=False)
evaluate('D=0.125 (ce) d |',
[(60, 0.0, 1.0, 0.8, 1), (64, 0.0, 1.0, 0.8, 1),
(62.0, 1.0, 2.0, 0.7, 1)],
ignore_velocity=False)
evaluate('D=0.125 (:ce) d |',
[(60, 0.0, 1.0, 0.8, 1), (64, 0.5, 1.0, 0.7, 1),
(62.0, 1.0, 2.0, 0.7, 1)],
ignore_velocity=False)
evaluate('D=0.125 (~ce) d |',
[(60, 0.0, 0.5, 0.8, 1), (64, 0.5, 1.0, 0.7, 1),
(62.0, 1.0, 2.0, 0.7, 1)],
ignore_velocity=False)
def test_beatspec():
evaluate('B=8 #d - - - |', [(63, 0.0, 2.0)])
evaluate('B=8. #d - - - |', [(63, 0.0, 3.0)])
evaluate('B=4 #d - - - |', [(63, 0.0, 4.0)])
evaluate('B=4. #d - - - |', [(63, 0.0, 6.0)])
evaluate('B=2 #d - - - |', [(63, 0.0, 8.0)])
evaluate('B=2. #d - - - |', [(63, 0.0, 12.0)])
def test_time_signature():
sig = time_signature('4.', 3, 0.0, 0)
assert sig == ('M', 0.0, 9, 8, 0)
def test_channel():
evaluate('C=16 c |', [(60, 0.0, 1.0, 0.8, 16)],
ignore_velocity=False)
def evaluate(source, expected, numeric=False,
ignore_velocity=True):
""" Part 0 only """
if numeric:
pitch_order = tuple('1234567')
else:
pitch_order = tuple('cdefgab')
m = MidiEvaluator(pitch_order=pitch_order,
ignore_velocity=ignore_velocity)
m.eval(source)
for i, t in enumerate(m.output[0]):
assert t == approx(expected[i])
def test_metronome():
metroevaluate('a b - cd |', [(76, 0.0, 1.0, 0.8, 10),
(77, 1.0, 2.0, 0.8, 10),
(77, 2.0, 3.0, 0.8, 10),
(77, 3.0, 4.0, 0.8, 10)],
ignore_velocity=False)
metroevaluate('B=4. a b |', [(76, 0.0, 1.5, 0.8, 10),
(77, 1.5, 3.0, 0.8, 10)],
ignore_velocity=False)
metroevaluate('B=4. D=0.25 a b |', [(76, 0.0, 1.5, 0.8, 10),
(77, 1.5, 3.0, 0.6, 10)],
ignore_velocity=False)
def metroevaluate(source, expected,
numeric=False, ignore_velocity=True):
if numeric:
pitch_order = tuple('1234567')
else:
pitch_order = tuple('cdefgab')
m = MidiEvaluator(pitch_order=pitch_order,
ignore_velocity=ignore_velocity)
m.eval(source)
print(m.metronome_output)
for i, t in enumerate(m.metronome_output):
assert t == approx(expected[i])