Module note_seq.melody_inference_test
Tests for melody inference.
Expand source code
# Copyright 2021 The Magenta Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Tests for melody inference."""
from absl.testing import absltest
from note_seq import melody_inference
from note_seq import testing_lib
from note_seq.protobuf import music_pb2
class MelodyInferenceTest(absltest.TestCase):
def testSequenceNoteFrames(self):
sequence = music_pb2.NoteSequence()
testing_lib.add_track_to_sequence(
sequence, 0,
[(60, 100, 0.5, 2.0), (62, 100, 1.0, 1.25)])
pitches, has_onsets, has_notes, event_times = (
melody_inference.sequence_note_frames(sequence))
expected_pitches = [60, 62]
expected_has_onsets = [[0, 0], [1, 0], [0, 1], [0, 0]]
expected_has_notes = [[0, 0], [1, 0], [1, 1], [1, 0]]
expected_event_times = [0.5, 1.0, 1.25]
self.assertEqual(expected_pitches, pitches)
self.assertEqual(expected_has_onsets, has_onsets.tolist())
self.assertEqual(expected_has_notes, has_notes.tolist())
self.assertEqual(expected_event_times, event_times)
def testMelodyInferenceEmptySequence(self):
sequence = music_pb2.NoteSequence()
melody_inference.infer_melody_for_sequence(sequence)
expected_sequence = music_pb2.NoteSequence()
self.assertEqual(expected_sequence, sequence)
def testMelodyInferenceSingleNote(self):
sequence = music_pb2.NoteSequence()
testing_lib.add_track_to_sequence(
sequence, 0, [(60, 100, 0.5, 1.0)])
melody_inference.infer_melody_for_sequence(sequence)
expected_sequence = music_pb2.NoteSequence()
testing_lib.add_track_to_sequence(
expected_sequence, 0, [(60, 100, 0.5, 1.0)])
testing_lib.add_track_to_sequence(
expected_sequence, 1, [(60, 127, 0.5, 1.0)])
self.assertEqual(expected_sequence, sequence)
def testMelodyInferenceMonophonic(self):
sequence = music_pb2.NoteSequence()
testing_lib.add_track_to_sequence(
sequence, 0,
[(60, 100, 0.5, 1.0), (62, 100, 1.0, 2.0), (64, 100, 2.0, 4.0)])
melody_inference.infer_melody_for_sequence(sequence)
expected_sequence = music_pb2.NoteSequence()
testing_lib.add_track_to_sequence(
expected_sequence, 0,
[(60, 100, 0.5, 1.0), (62, 100, 1.0, 2.0), (64, 100, 2.0, 4.0)])
testing_lib.add_track_to_sequence(
expected_sequence, 1,
[(60, 127, 0.5, 1.0), (62, 127, 1.0, 2.0), (64, 127, 2.0, 4.0)])
self.assertEqual(expected_sequence, sequence)
def testMelodyInferencePolyphonic(self):
sequence = music_pb2.NoteSequence()
testing_lib.add_track_to_sequence(
sequence, 0, [
(36, 100, 0.0, 4.0), (64, 100, 0.0, 1.0), (67, 100, 0.0, 1.0),
(65, 100, 1.0, 2.0), (69, 100, 1.0, 2.0),
(67, 100, 2.0, 4.0), (71, 100, 2.0, 3.0),
(72, 100, 3.0, 4.0)
])
melody_inference.infer_melody_for_sequence(sequence)
expected_sequence = music_pb2.NoteSequence()
testing_lib.add_track_to_sequence(
expected_sequence, 0, [
(36, 100, 0.0, 4.0), (64, 100, 0.0, 1.0), (67, 100, 0.0, 1.0),
(65, 100, 1.0, 2.0), (69, 100, 1.0, 2.0),
(67, 100, 2.0, 4.0), (71, 100, 2.0, 3.0),
(72, 100, 3.0, 4.0)
])
testing_lib.add_track_to_sequence(
expected_sequence, 1, [
(67, 127, 0.0, 1.0), (69, 127, 1.0, 2.0),
(71, 127, 2.0, 3.0), (72, 127, 3.0, 4.0)
])
self.assertEqual(expected_sequence, sequence)
if __name__ == '__main__':
absltest.main()Classes
class MelodyInferenceTest (*args, **kwargs)-
Extension of unittest.TestCase providing more power.
Create an instance of the class that will use the named test method when executed. Raises a ValueError if the instance does not have a method with the specified name.
Expand source code
class MelodyInferenceTest(absltest.TestCase): def testSequenceNoteFrames(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [(60, 100, 0.5, 2.0), (62, 100, 1.0, 1.25)]) pitches, has_onsets, has_notes, event_times = ( melody_inference.sequence_note_frames(sequence)) expected_pitches = [60, 62] expected_has_onsets = [[0, 0], [1, 0], [0, 1], [0, 0]] expected_has_notes = [[0, 0], [1, 0], [1, 1], [1, 0]] expected_event_times = [0.5, 1.0, 1.25] self.assertEqual(expected_pitches, pitches) self.assertEqual(expected_has_onsets, has_onsets.tolist()) self.assertEqual(expected_has_notes, has_notes.tolist()) self.assertEqual(expected_event_times, event_times) def testMelodyInferenceEmptySequence(self): sequence = music_pb2.NoteSequence() melody_inference.infer_melody_for_sequence(sequence) expected_sequence = music_pb2.NoteSequence() self.assertEqual(expected_sequence, sequence) def testMelodyInferenceSingleNote(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [(60, 100, 0.5, 1.0)]) melody_inference.infer_melody_for_sequence(sequence) expected_sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( expected_sequence, 0, [(60, 100, 0.5, 1.0)]) testing_lib.add_track_to_sequence( expected_sequence, 1, [(60, 127, 0.5, 1.0)]) self.assertEqual(expected_sequence, sequence) def testMelodyInferenceMonophonic(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [(60, 100, 0.5, 1.0), (62, 100, 1.0, 2.0), (64, 100, 2.0, 4.0)]) melody_inference.infer_melody_for_sequence(sequence) expected_sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( expected_sequence, 0, [(60, 100, 0.5, 1.0), (62, 100, 1.0, 2.0), (64, 100, 2.0, 4.0)]) testing_lib.add_track_to_sequence( expected_sequence, 1, [(60, 127, 0.5, 1.0), (62, 127, 1.0, 2.0), (64, 127, 2.0, 4.0)]) self.assertEqual(expected_sequence, sequence) def testMelodyInferencePolyphonic(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [ (36, 100, 0.0, 4.0), (64, 100, 0.0, 1.0), (67, 100, 0.0, 1.0), (65, 100, 1.0, 2.0), (69, 100, 1.0, 2.0), (67, 100, 2.0, 4.0), (71, 100, 2.0, 3.0), (72, 100, 3.0, 4.0) ]) melody_inference.infer_melody_for_sequence(sequence) expected_sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( expected_sequence, 0, [ (36, 100, 0.0, 4.0), (64, 100, 0.0, 1.0), (67, 100, 0.0, 1.0), (65, 100, 1.0, 2.0), (69, 100, 1.0, 2.0), (67, 100, 2.0, 4.0), (71, 100, 2.0, 3.0), (72, 100, 3.0, 4.0) ]) testing_lib.add_track_to_sequence( expected_sequence, 1, [ (67, 127, 0.0, 1.0), (69, 127, 1.0, 2.0), (71, 127, 2.0, 3.0), (72, 127, 3.0, 4.0) ]) self.assertEqual(expected_sequence, sequence)Ancestors
- absl.testing.absltest.TestCase
- absl.third_party.unittest3_backport.case.TestCase
- unittest.case.TestCase
Methods
def testMelodyInferenceEmptySequence(self)-
Expand source code
def testMelodyInferenceEmptySequence(self): sequence = music_pb2.NoteSequence() melody_inference.infer_melody_for_sequence(sequence) expected_sequence = music_pb2.NoteSequence() self.assertEqual(expected_sequence, sequence) def testMelodyInferenceMonophonic(self)-
Expand source code
def testMelodyInferenceMonophonic(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [(60, 100, 0.5, 1.0), (62, 100, 1.0, 2.0), (64, 100, 2.0, 4.0)]) melody_inference.infer_melody_for_sequence(sequence) expected_sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( expected_sequence, 0, [(60, 100, 0.5, 1.0), (62, 100, 1.0, 2.0), (64, 100, 2.0, 4.0)]) testing_lib.add_track_to_sequence( expected_sequence, 1, [(60, 127, 0.5, 1.0), (62, 127, 1.0, 2.0), (64, 127, 2.0, 4.0)]) self.assertEqual(expected_sequence, sequence) def testMelodyInferencePolyphonic(self)-
Expand source code
def testMelodyInferencePolyphonic(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [ (36, 100, 0.0, 4.0), (64, 100, 0.0, 1.0), (67, 100, 0.0, 1.0), (65, 100, 1.0, 2.0), (69, 100, 1.0, 2.0), (67, 100, 2.0, 4.0), (71, 100, 2.0, 3.0), (72, 100, 3.0, 4.0) ]) melody_inference.infer_melody_for_sequence(sequence) expected_sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( expected_sequence, 0, [ (36, 100, 0.0, 4.0), (64, 100, 0.0, 1.0), (67, 100, 0.0, 1.0), (65, 100, 1.0, 2.0), (69, 100, 1.0, 2.0), (67, 100, 2.0, 4.0), (71, 100, 2.0, 3.0), (72, 100, 3.0, 4.0) ]) testing_lib.add_track_to_sequence( expected_sequence, 1, [ (67, 127, 0.0, 1.0), (69, 127, 1.0, 2.0), (71, 127, 2.0, 3.0), (72, 127, 3.0, 4.0) ]) self.assertEqual(expected_sequence, sequence) def testMelodyInferenceSingleNote(self)-
Expand source code
def testMelodyInferenceSingleNote(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [(60, 100, 0.5, 1.0)]) melody_inference.infer_melody_for_sequence(sequence) expected_sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( expected_sequence, 0, [(60, 100, 0.5, 1.0)]) testing_lib.add_track_to_sequence( expected_sequence, 1, [(60, 127, 0.5, 1.0)]) self.assertEqual(expected_sequence, sequence) def testSequenceNoteFrames(self)-
Expand source code
def testSequenceNoteFrames(self): sequence = music_pb2.NoteSequence() testing_lib.add_track_to_sequence( sequence, 0, [(60, 100, 0.5, 2.0), (62, 100, 1.0, 1.25)]) pitches, has_onsets, has_notes, event_times = ( melody_inference.sequence_note_frames(sequence)) expected_pitches = [60, 62] expected_has_onsets = [[0, 0], [1, 0], [0, 1], [0, 0]] expected_has_notes = [[0, 0], [1, 0], [1, 1], [1, 0]] expected_event_times = [0.5, 1.0, 1.25] self.assertEqual(expected_pitches, pitches) self.assertEqual(expected_has_onsets, has_onsets.tolist()) self.assertEqual(expected_has_notes, has_notes.tolist()) self.assertEqual(expected_event_times, event_times)