Page MenuHomec4science
Files F120599509

test_tokenization_pegasus.py
No OneTemporary
Actions

File Metadata

Created
Sat, Jul 5, 12:40

test_tokenization_pegasus.py
View Options

# Copyright 2020 The HuggingFace Team. All rights reserved.
#
# 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 transformers import PegasusTokenizer, PegasusTokenizerFast
from transformers.file_utils import cached_property
from transformers.testing_utils import get_tests_dir, require_sentencepiece, require_tokenizers, require_torch
from .test_tokenization_common import TokenizerTesterMixin
SAMPLE_VOCAB = get_tests_dir("fixtures/test_sentencepiece_no_bos.model")
@require_sentencepiece
@require_tokenizers
class PegasusTokenizationTest(TokenizerTesterMixin, unittest.TestCase):
tokenizer_class = PegasusTokenizer
rust_tokenizer_class = PegasusTokenizerFast
test_rust_tokenizer = True
def setUp(self):
super().setUp()
# We have a SentencePiece fixture for testing
tokenizer = PegasusTokenizer(SAMPLE_VOCAB)
tokenizer.save_pretrained(self.tmpdirname)
@cached_property
def _large_tokenizer(self):
return PegasusTokenizer.from_pretrained("google/pegasus-large")
def get_tokenizer(self, **kwargs) -> PegasusTokenizer:
return PegasusTokenizer.from_pretrained(self.tmpdirname, **kwargs)
def get_input_output_texts(self, tokenizer):
return ("This is a test", "This is a test")
def test_mask_tokens_rust_pegasus(self):
rust_tokenizer = self.rust_tokenizer_class.from_pretrained(self.tmpdirname)
py_tokenizer = self.tokenizer_class.from_pretrained(self.tmpdirname)
raw_input_str = "Let's see which <unk> is the better <unk_token_11> one <mask_1> It seems like this <mask_2> was important </s> <pad> <pad> <pad>"
rust_ids = rust_tokenizer([raw_input_str], return_tensors=None, add_special_tokens=False).input_ids[0]
py_ids = py_tokenizer([raw_input_str], return_tensors=None, add_special_tokens=False).input_ids[0]
# TODO: (Thom, Patrick) - this fails because the rust tokenizer does not know about the <mask_1>, <mask_2>, and those <unk_token_x> yet
self.assertListEqual(py_ids, rust_ids)
def test_large_mask_tokens(self):
tokenizer = self._large_tokenizer
# <mask_1> masks whole sentence while <mask_2> masks single word
raw_input_str = "<mask_1> To ensure a <mask_2> flow of bank resolutions."
desired_result = [2, 413, 615, 114, 3, 1971, 113, 1679, 10710, 107, 1]
ids = tokenizer([raw_input_str], return_tensors=None).input_ids[0]
self.assertListEqual(desired_result, ids)
def test_large_tokenizer_settings(self):
tokenizer = self._large_tokenizer
# The tracebacks for the following asserts are **better** without messages or self.assertEqual
assert tokenizer.vocab_size == 96103
assert tokenizer.pad_token_id == 0
assert tokenizer.eos_token_id == 1
assert tokenizer.offset == 103
assert tokenizer.unk_token_id == tokenizer.offset + 2 == 105
assert tokenizer.unk_token == "<unk>"
assert tokenizer.model_max_length == 1024
raw_input_str = "To ensure a smooth flow of bank resolutions."
desired_result = [413, 615, 114, 2291, 1971, 113, 1679, 10710, 107, 1]
ids = tokenizer([raw_input_str], return_tensors=None).input_ids[0]
self.assertListEqual(desired_result, ids)
assert tokenizer.convert_ids_to_tokens([0, 1, 2, 3]) == ["<pad>", "</s>", "<mask_1>", "<mask_2>"]
@require_torch
def test_large_seq2seq_truncation(self):
src_texts = ["This is going to be way too long." * 150, "short example"]
tgt_texts = ["not super long but more than 5 tokens", "tiny"]
batch = self._large_tokenizer(src_texts, padding=True, truncation=True, return_tensors="pt")
with self._large_tokenizer.as_target_tokenizer():
targets = self._large_tokenizer(
tgt_texts, max_length=5, padding=True, truncation=True, return_tensors="pt"
)
assert batch.input_ids.shape == (2, 1024)
assert batch.attention_mask.shape == (2, 1024)
assert targets["input_ids"].shape == (2, 5)
assert len(batch) == 2 # input_ids, attention_mask.

Event Timeline

c4science · Help