Module note_seq.pianoroll_encoder_decoder_test

Tests for pianoroll_encoder_decoder.

# 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 pianoroll_encoder_decoder."""

from absl.testing import absltest
from note_seq import pianoroll_encoder_decoder
import numpy as np


class PianorollEncodingTest(absltest.TestCase):

  def setUp(self):
    self.enc = pianoroll_encoder_decoder.PianorollEncoderDecoder(5)

  def testProperties(self):
    self.assertEqual(5, self.enc.input_size)
    self.assertEqual(32, self.enc.num_classes)
    self.assertEqual(0, self.enc.default_event_label)

  def testEncodeInput(self):
    events = [(), (1, 2), (2,)]
    self.assertTrue(np.array_equal(
        np.zeros(5, np.bool), self.enc.events_to_input(events, 0)))
    self.assertTrue(np.array_equal(
        [0, 1, 1, 0, 0], self.enc.events_to_input(events, 1)))
    self.assertTrue(np.array_equal(
        [0, 0, 1, 0, 0], self.enc.events_to_input(events, 2)))

  def testEncodeLabel(self):
    events = [[], [1, 2], [2]]
    self.assertEqual(0, self.enc.events_to_label(events, 0))
    self.assertEqual(6, self.enc.events_to_label(events, 1))
    self.assertEqual(4, self.enc.events_to_label(events, 2))

  def testDecodeLabel(self):
    self.assertEqual((), self.enc.class_index_to_event(0, None))
    self.assertEqual((1, 2), self.enc.class_index_to_event(6, None))
    self.assertEqual((2,), self.enc.class_index_to_event(4, None))

  def testExtendEventSequences(self):
    seqs = ([(0,), (1, 2)], [(), ()])
    samples = ([0, 0, 0, 0, 0], [1, 1, 0, 0, 1])
    self.enc.extend_event_sequences(seqs, samples)
    self.assertEqual(([(0,), (1, 2), ()], [(), (), (0, 1, 4)]), seqs)


if __name__ == '__main__':
  absltest.main()

Classes

class PianorollEncodingTest (*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 PianorollEncodingTest(absltest.TestCase):

  def setUp(self):
    self.enc = pianoroll_encoder_decoder.PianorollEncoderDecoder(5)

  def testProperties(self):
    self.assertEqual(5, self.enc.input_size)
    self.assertEqual(32, self.enc.num_classes)
    self.assertEqual(0, self.enc.default_event_label)

  def testEncodeInput(self):
    events = [(), (1, 2), (2,)]
    self.assertTrue(np.array_equal(
        np.zeros(5, np.bool), self.enc.events_to_input(events, 0)))
    self.assertTrue(np.array_equal(
        [0, 1, 1, 0, 0], self.enc.events_to_input(events, 1)))
    self.assertTrue(np.array_equal(
        [0, 0, 1, 0, 0], self.enc.events_to_input(events, 2)))

  def testEncodeLabel(self):
    events = [[], [1, 2], [2]]
    self.assertEqual(0, self.enc.events_to_label(events, 0))
    self.assertEqual(6, self.enc.events_to_label(events, 1))
    self.assertEqual(4, self.enc.events_to_label(events, 2))

  def testDecodeLabel(self):
    self.assertEqual((), self.enc.class_index_to_event(0, None))
    self.assertEqual((1, 2), self.enc.class_index_to_event(6, None))
    self.assertEqual((2,), self.enc.class_index_to_event(4, None))

  def testExtendEventSequences(self):
    seqs = ([(0,), (1, 2)], [(), ()])
    samples = ([0, 0, 0, 0, 0], [1, 1, 0, 0, 1])
    self.enc.extend_event_sequences(seqs, samples)
    self.assertEqual(([(0,), (1, 2), ()], [(), (), (0, 1, 4)]), seqs)

Ancestors

• absl.testing.absltest.TestCase
• absl.third_party.unittest3_backport.case.TestCase
• unittest.case.TestCase

Methods

def setUp(self)

Hook method for setting up the test fixture before exercising it.

Expand source code

def setUp(self):
  self.enc = pianoroll_encoder_decoder.PianorollEncoderDecoder(5)

def testDecodeLabel(self)

Expand source code

def testDecodeLabel(self):
  self.assertEqual((), self.enc.class_index_to_event(0, None))
  self.assertEqual((1, 2), self.enc.class_index_to_event(6, None))
  self.assertEqual((2,), self.enc.class_index_to_event(4, None))

def testEncodeInput(self)

Expand source code

def testEncodeInput(self):
  events = [(), (1, 2), (2,)]
  self.assertTrue(np.array_equal(
      np.zeros(5, np.bool), self.enc.events_to_input(events, 0)))
  self.assertTrue(np.array_equal(
      [0, 1, 1, 0, 0], self.enc.events_to_input(events, 1)))
  self.assertTrue(np.array_equal(
      [0, 0, 1, 0, 0], self.enc.events_to_input(events, 2)))

def testEncodeLabel(self)

Expand source code

def testEncodeLabel(self):
  events = [[], [1, 2], [2]]
  self.assertEqual(0, self.enc.events_to_label(events, 0))
  self.assertEqual(6, self.enc.events_to_label(events, 1))
  self.assertEqual(4, self.enc.events_to_label(events, 2))

def testExtendEventSequences(self)

Expand source code

def testExtendEventSequences(self):
  seqs = ([(0,), (1, 2)], [(), ()])
  samples = ([0, 0, 0, 0, 0], [1, 1, 0, 0, 1])
  self.enc.extend_event_sequences(seqs, samples)
  self.assertEqual(([(0,), (1, 2), ()], [(), (), (0, 1, 4)]), seqs)

def testProperties(self)

Expand source code

def testProperties(self):
  self.assertEqual(5, self.enc.input_size)
  self.assertEqual(32, self.enc.num_classes)
  self.assertEqual(0, self.enc.default_event_label)