Sepearate Generation
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khodowany
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"""Dependency and music contracts use synthetic sources, never audition scores."""
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import concurrent.futures
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import copy
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import contextlib
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import dataclasses
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import json
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import multiprocessing
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from pathlib import Path
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import tempfile
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import unittest
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from fractions import Fraction as F
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from unittest.mock import patch
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from generator import production, model, vocabulary
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from generator.solo import expressions, types, harmonic, placement, notation, composer, themes
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from tests.test_solo import song
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from tests.test_solo_passages import choices
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from tests.test_solo_development import note
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def music(result):
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return result['document']
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class IndependentRoles(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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cls.source=production.SourceAnalysis.read(song(count=1,chords=('CM7',)))
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cls.root=Path('data').resolve()
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def test_alone_order_parallel_and_assembly(self):
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serial={role:production.generate_role(self.source,role,self.root) for role in production.ROLES}
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with concurrent.futures.ProcessPoolExecutor(max_workers=2,mp_context=multiprocessing.get_context('spawn')) as pool:
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jobs={role:pool.submit(production._job,(self.source,role,self.root,{},None)) for role in reversed(production.ROLES)}
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parallel={role:future.result() for role,future in jobs.items()}
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for role in production.ROLES:self.assertEqual(music(serial[role]),music(parallel[role]),role)
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for doc in production.assemble(self.source,serial).values():model.validate_document(doc)
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def test_role_setting_and_cache_are_independent(self):
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with tempfile.TemporaryDirectory() as directory:
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a=production.generate_role(self.source,'acoustic_solo',self.root,cache_dir=directory)
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b=production.generate_role(self.source,'electric_solo',self.root,{'seed':'changed'},directory)
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again=production.generate_role(self.source,'acoustic_solo',self.root,cache_dir=directory)
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clean=production.generate_role(self.source,'acoustic_solo',self.root)
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self.assertTrue(again['cache_hit']);self.assertEqual(music(a),music(again));self.assertEqual(music(a),music(clean))
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self.assertEqual(json.dumps(music(a)),json.dumps(music(again)))
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self.assertNotEqual(a['trace']['cache_key'],b['trace']['cache_key'])
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def test_optional_inputs_cannot_be_opened_by_composition(self):
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original=Path.open
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def guarded(path,*args,**kwargs):
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self.assertNotIn('audition',str(path));self.assertNotIn('reference',str(path));self.assertNotIn('generated_assets',str(path))
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return original(path,*args,**kwargs)
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with patch.object(Path,'open',guarded):
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result=production.generate_role(self.source,'acoustic_solo',self.root)
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self.assertNotIn('reference',json.dumps(result['trace']))
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def test_titles_and_export_ids_do_not_supply_musical_identity(self):
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document=song(count=1,chords=('CM7',));other=copy.deepcopy(document)
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other['metadata'].update(title='A completely different title',composer='Different')
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for m in other['staves'][0]['measures']:m['id']='exporter_123';m['number']='99'
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self.assertEqual(production.SourceAnalysis.read(document),production.SourceAnalysis.read(other))
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def test_reference_presence_and_changes_do_not_change_clean_music(self):
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# No repository reference is a fixture or prerequisite. These deliberately
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# invalid optional files test the absence of a discovery/fallback branch.
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with tempfile.TemporaryDirectory() as directory, contextlib.chdir(directory):
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reference_dir=Path(directory)/'build';reference_dir.mkdir()
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references=[reference_dir/(song+'-solo-'+str(index)+suffix+'.xml')
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for song in ('all-of-me','autumn-leaves') for index in (1,2) for suffix in ('','(4)')]
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before=production.generate_role(self.source,'electric_solo',self.root)
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for reference in references:reference.write_text('<not-a-production-source/>')
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present=production.generate_role(self.source,'electric_solo',self.root)
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for reference in references:reference.write_text('changed optional target, still not MusicXML')
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changed=production.generate_role(self.source,'electric_solo',self.root)
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for reference in references:reference.unlink()
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absent=production.generate_role(self.source,'electric_solo',self.root)
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self.assertTrue(all(music(before)==music(v) for v in (present,changed,absent)))
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def test_original_melody_changes_the_theme_with_unchanged_harmony(self):
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source=song(count=4,chords=('CM7',))
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changed=copy.deepcopy(source)
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for m in changed['staves'][0]['measures']:
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for v in m['voices']:
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for n in v['notes']:
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for p in n['pitches']:p['letter']={'c':'e','d':'f','e':'g','f':'a'}[p['letter']]
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a=production.generate_role(production.SourceAnalysis.read(source),'acoustic_solo',self.root)
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b=production.generate_role(production.SourceAnalysis.read(changed),'acoustic_solo',self.root)
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self.assertNotEqual(a['details']['phrases'][0]['draft']['notes'],b['details']['phrases'][0]['draft']['notes'])
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def test_source_tuplet_lanes_survive_assembly(self):
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serial={r:production.generate_role(self.source,r,self.root) for r in production.ROLES}
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# Exercise a different original lane name, as in the imported Autumn head.
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doc=serial['electric_melody']['document'];staff=doc['staves'][0]
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raw=tuple(note(F(i,3),F(i+1,3),'c',event_id=str(i)) for i in range(3))
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placed=placement.place(raw,F(120))[1]
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index=next(i for i,m in enumerate(staff['measures']) if m.get('section_label')=='Guitar Melody')
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replacement=notation.measures(staff['measures'][index:index+1],placed,'source_triplet')
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notation.replace_region(doc,index,replacement)
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for m in staff['measures']:
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for v in m['voices']:
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v['id']='voice_source'
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for n in v['notes']:n['voice']='voice_source'
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for t in staff['tuplets']:t['voice']='voice_source'
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model.validate_document(doc)
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model.validate_document(production.assemble(self.source,serial)['electric'])
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def test_sparse_parts_reuse_the_canonical_form(self):
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result=production.generate_role(production.SourceAnalysis.read(song(count=4,chords=('Dm7','G7','CM7'))),'acoustic_accompaniment',self.root)
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measures=result['document']['staves'][0]['measures']
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def signature(m):
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return [(n['onset'],n['duration'],[(model.pitch_number(p),p['tablature']) for p in n['pitches']]) for v in m['voices'] for n in v['notes']]
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self.assertEqual([signature(m) for m in measures[4:8]],[signature(m) for m in measures[8:12]])
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self.assertTrue(all(len(n['pitches'])<=3 for m in measures for v in m['voices'] for n in v['notes']))
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class TypedExpressionContracts(unittest.TestCase):
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def setUp(self):
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self.h=harmonic.Harmony(choices(('C7','FM7')))
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def make(self,rule='upper_lower'):
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target=note(2,4,'e',event_id='target')
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upper=note(1,F(3,2),'f',event_id='upper')
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lower=dataclasses.replace(note(F(3,2),2,'d',event_id='lower'),pitch=types.Pitch('d',F(1),4))
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c=types.ExpressionContract('gesture','enclosure',rule,(upper,lower),target,'C7')
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return (upper,lower,target),c
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def test_complete_enclosure_and_orphans(self):
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notes,c=self.make()
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self.assertTrue(self.h.evaluate(notes,expressions=(c,)).valid)
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self.assertFalse(self.h.evaluate(notes).valid)
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self.assertFalse(self.h.evaluate(notes[:-1],expressions=(c,)).valid)
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changed=(*notes[:-1],dataclasses.replace(notes[-1],pitch=dataclasses.replace(notes[-1].pitch,octave=5)))
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self.assertFalse(self.h.evaluate(changed,expressions=(c,)).valid)
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def test_anticipation_validates_actual_future_harmony(self):
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n=note(F(7,2),6,'a',event_id='early')
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c=types.ExpressionContract('anticipation','anticipation','early_chord_tone',(n,),n,'FM7',boundary=F(4))
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self.assertTrue(self.h.evaluate((n,),expressions=(c,)).valid)
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self.assertFalse(self.h.evaluate((n,)).valid)
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self.assertFalse(self.h.evaluate((n,),expressions=(dataclasses.replace(c,boundary=F(3)),)).valid)
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def test_optional_color_is_not_a_written_chord_requirement(self):
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n=note(0,2,'d',event_id='ninth')
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c=types.ExpressionContract('color','color','dominant_ninth',(n,),n,'C7')
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self.assertTrue(self.h.evaluate((n,),expressions=(c,)).valid)
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self.assertFalse(self.h.evaluate((n,)).valid)
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self.assertNotIn(n.pitch.number()%12,self.h.spans[0].roles.basic)
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self.assertNotIn(n.pitch.number()%12,self.h.spans[0].roles.specified)
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def test_labels_do_not_authorize_unresolved_notes(self):
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n=dataclasses.replace(note(0,2,'c',event_id='bad'),pitch=types.Pitch('c',F(1),4),role='color')
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self.assertFalse(self.h.evaluate((n,)).valid)
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c=types.ExpressionContract('bad','color','anything',(n,),n,'C7')
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self.assertFalse(self.h.evaluate((n,),expressions=(c,)).valid)
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def test_delayed_approach_allows_only_the_declared_rest(self):
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lower=dataclasses.replace(note(1,F(3,2),'d',event_id='lower'),pitch=types.Pitch('d',F(1),4))
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target=note(2,4,'e',event_id='target')
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c=types.ExpressionContract('delay','approach','delayed_below',(lower,),target,'C7')
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self.assertTrue(self.h.evaluate((lower,target),expressions=(c,)).valid)
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wrong=dataclasses.replace(c,rule='below')
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self.assertFalse(self.h.evaluate((lower,target),expressions=(wrong,)).valid)
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def test_altered_dominant_color_requires_function_and_resolution(self):
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color=dataclasses.replace(note(0,1,'d',event_id='color'),pitch=types.Pitch('d',F(-1),4))
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target=note(1,2,'c',event_id='target')
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c=types.ExpressionContract('flat9','color','dominant_flat_ninth',(color,),target,'C7')
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self.assertTrue(self.h.evaluate((color,target),expressions=(c,)).valid)
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unresolved=harmonic.Harmony(choices(('C7','Dm7')))
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self.assertFalse(unresolved.evaluate((color,target),expressions=(c,)).valid)
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self.assertFalse(self.h.evaluate((color,),expressions=(c,)).valid)
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def test_mapped_semitone_needs_no_expression_exception(self):
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from tests import scale_fixtures
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h=harmonic.Harmony(choices(('A7','Dm7'),scale=scale_fixtures.library().scale('harmonic_minor',1,'D')))
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a=dataclasses.replace(note(0,F(1,2),'c',event_id='csharp'),pitch=types.Pitch('c',F(1),4))
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b=note(F(1,2),1,'d',event_id='d')
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self.assertTrue(h.evaluate((a,b)).valid)
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def test_ties_and_barlines_do_not_restart_triplets(self):
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raw=tuple(note(F(7,2)+F(i,3),F(7,2)+F(i+1,3),'c',event_id=str(i)) for i in range(3))
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placed=placement.place(raw,F(120))[1]
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doc=song(count=2,chords=('CM7',));measures=notation.measures(doc['staves'][0]['measures'],placed,'triplet')
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spans=notation.tuplets(measures)
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self.assertEqual(len(spans),1)
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self.assertTrue(any('tie_from' in p for m in measures for v in m['voices'] for n in v['notes'] for p in n['pitches']))
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def test_authored_fast_cells_respect_tempo(self):
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fast={c[0] for c in vocabulary.rhythm_cells(180)}
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slow={c[0] for c in vocabulary.rhythm_cells(100)}
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self.assertNotIn('sixteenth_pickup',fast);self.assertNotIn('triplet_turn',fast)
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self.assertIn('sixteenth_pickup',slow);self.assertIn('triplet_turn',slow)
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if __name__=='__main__':unittest.main()
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