# coding=utf-8 # Copyright 2019 HuggingFace Inc. # # 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. import unittest from run_seq2seq_finetuning import _fit_to_block_size, process_story class DataLoaderTest(unittest.TestCase): def setUp(self): self.block_size = 10 def test_truncate_source_and_target_too_small(self): """ When the sum of the lengths of the source and target sequences is smaller than the block size (minus the number of special tokens), skip the example. """ src_seq = [1, 2, 3, 4] tgt_seq = [5, 6] self.assertEqual(_fit_to_block_size(src_seq, tgt_seq, self.block_size), None) def test_truncate_source_and_target_fit_exactly(self): """ When the sum of the lengths of the source and target sequences is equal to the block size (minus the number of special tokens), return the sequences unchanged. """ src_seq = [1, 2, 3, 4] tgt_seq = [5, 6, 7] fitted_src, fitted_tgt = _fit_to_block_size(src_seq, tgt_seq, self.block_size) self.assertListEqual(src_seq, fitted_src) self.assertListEqual(tgt_seq, fitted_tgt) def test_truncate_source_too_big_target_ok(self): src_seq = [1, 2, 3, 4, 5, 6] tgt_seq = [1, 2] fitted_src, fitted_tgt = _fit_to_block_size(src_seq, tgt_seq, self.block_size) self.assertListEqual(fitted_src, [1, 2, 3, 4, 5]) self.assertListEqual(fitted_tgt, fitted_tgt) def test_truncate_target_too_big_source_ok(self): src_seq = [1, 2, 3, 4] tgt_seq = [1, 2, 3, 4] fitted_src, fitted_tgt = _fit_to_block_size(src_seq, tgt_seq, self.block_size) self.assertListEqual(fitted_src, src_seq) self.assertListEqual(fitted_tgt, [1, 2, 3]) def test_truncate_source_and_target_too_big(self): src_seq = [1, 2, 3, 4, 5, 6, 7] tgt_seq = [1, 2, 3, 4, 5, 6, 7] fitted_src, fitted_tgt = _fit_to_block_size(src_seq, tgt_seq, self.block_size) self.assertListEqual(fitted_src, [1, 2, 3, 4, 5]) self.assertListEqual(fitted_tgt, [1, 2]) def test_process_story_no_highlights(self): """ Processing a story with no highlights should raise an exception. """ raw_story = """It was the year of Our Lord one thousand seven hundred and seventy-five.\n\nSpiritual revelations were conceded to England at that favoured period, as at this.""" with self.assertRaises(IndexError): process_story(raw_story) def test_process_empty_story(self): """ An empty story should also raise and exception. """ raw_story = "" with self.assertRaises(IndexError): process_story(raw_story) def test_story_with_missing_period(self): raw_story = ( "It was the year of Our Lord one thousand seven hundred and " "seventy-five\n\nSpiritual revelations were conceded to England " "at that favoured period, as at this.\n@highlight\n\nIt was the best of times" ) story, summary = process_story(raw_story) expected_story = ( "It was the year of Our Lord one thousand seven hundred and " "seventy-five. Spiritual revelations were conceded to England at that " "favoured period, as at this." ) self.assertEqual(expected_story, story) expected_summary = "It was the best of times." self.assertEqual(expected_summary, summary) if __name__ == "__main__": unittest.main()