wehub-resource-sync
117 lines
3.4 KiB
Python
117 lines
3.4 KiB
Python
# Copyright (c) Facebook, Inc. and its affiliates.
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#
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# This source code is licensed under the MIT license found in the
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# LICENSE file in the root directory of this source tree.
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import io
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import tempfile
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import unittest
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import torch
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from fairseq.data import Dictionary
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class TestDictionary(unittest.TestCase):
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def test_finalize(self):
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txt = [
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"A B C D",
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"B C D",
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"C D",
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"D",
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]
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ref_ids1 = list(
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map(
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torch.IntTensor,
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[
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[4, 5, 6, 7, 2],
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[5, 6, 7, 2],
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[6, 7, 2],
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[7, 2],
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],
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)
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)
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ref_ids2 = list(
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map(
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torch.IntTensor,
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[
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[7, 6, 5, 4, 2],
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[6, 5, 4, 2],
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[5, 4, 2],
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[4, 2],
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],
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)
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)
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# build dictionary
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d = Dictionary()
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for line in txt:
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d.encode_line(line, add_if_not_exist=True)
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def get_ids(dictionary):
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ids = []
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for line in txt:
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ids.append(dictionary.encode_line(line, add_if_not_exist=False))
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return ids
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def assertMatch(ids, ref_ids):
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for toks, ref_toks in zip(ids, ref_ids):
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self.assertEqual(toks.size(), ref_toks.size())
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self.assertEqual(0, (toks != ref_toks).sum().item())
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ids = get_ids(d)
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assertMatch(ids, ref_ids1)
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# check finalized dictionary
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d.finalize()
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finalized_ids = get_ids(d)
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assertMatch(finalized_ids, ref_ids2)
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# write to disk and reload
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with tempfile.NamedTemporaryFile(mode="w") as tmp_dict:
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d.save(tmp_dict.name)
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d = Dictionary.load(tmp_dict.name)
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reload_ids = get_ids(d)
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assertMatch(reload_ids, ref_ids2)
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assertMatch(finalized_ids, reload_ids)
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def test_overwrite(self):
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# for example, Camembert overwrites <unk>, <s> and </s>
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dict_file = io.StringIO(
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"<unk> 999 #fairseq:overwrite\n"
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"<s> 999 #fairseq:overwrite\n"
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"</s> 999 #fairseq:overwrite\n"
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", 999\n"
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"▁de 999\n"
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)
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d = Dictionary()
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d.add_from_file(dict_file)
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self.assertEqual(d.index("<pad>"), 1)
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self.assertEqual(d.index("foo"), 3)
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self.assertEqual(d.index("<unk>"), 4)
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self.assertEqual(d.index("<s>"), 5)
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self.assertEqual(d.index("</s>"), 6)
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self.assertEqual(d.index(","), 7)
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self.assertEqual(d.index("▁de"), 8)
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def test_no_overwrite(self):
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# for example, Camembert overwrites <unk>, <s> and </s>
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dict_file = io.StringIO(
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"<unk> 999\n" "<s> 999\n" "</s> 999\n" ", 999\n" "▁de 999\n"
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)
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d = Dictionary()
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with self.assertRaisesRegex(RuntimeError, "Duplicate"):
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d.add_from_file(dict_file)
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def test_space(self):
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# for example, character models treat space as a symbol
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dict_file = io.StringIO(" 999\n" "a 999\n" "b 999\n")
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d = Dictionary()
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d.add_from_file(dict_file)
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self.assertEqual(d.index(" "), 4)
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self.assertEqual(d.index("a"), 5)
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self.assertEqual(d.index("b"), 6)
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if __name__ == "__main__":
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unittest.main()
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