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| # Copyright 2022 The MT3 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 event_codec.""" | |
| from absl.testing import absltest | |
| from mt3 import event_codec | |
| Event = event_codec.Event | |
| EventRange = event_codec.EventRange | |
| class EventCodecTest(absltest.TestCase): | |
| def test_encode_decode(self): | |
| ec = event_codec.Codec( | |
| max_shift_steps=100, | |
| steps_per_second=100, | |
| event_ranges=[EventRange('pitch', min_value=0, max_value=127)]) | |
| events = [ | |
| Event(type='pitch', value=60), | |
| Event(type='shift', value=5), | |
| Event(type='pitch', value=62), | |
| ] | |
| encoded = [ec.encode_event(e) for e in events] | |
| self.assertSequenceEqual([161, 5, 163], encoded) | |
| decoded = [ec.decode_event_index(idx) for idx in encoded] | |
| self.assertSequenceEqual(events, decoded) | |
| def test_shift_steps(self): | |
| ec = event_codec.Codec( | |
| max_shift_steps=100, | |
| steps_per_second=100, | |
| event_ranges=[EventRange('pitch', min_value=0, max_value=127)]) | |
| self.assertEqual(100, ec.max_shift_steps) | |
| self.assertFalse(ec.is_shift_event_index(-1)) | |
| self.assertTrue(ec.is_shift_event_index(0)) | |
| self.assertTrue(ec.is_shift_event_index(100)) | |
| self.assertFalse(ec.is_shift_event_index(101)) | |
| if __name__ == '__main__': | |
| absltest.main() | |