135 lines
5.0 KiB
Python
135 lines
5.0 KiB
Python
# Copyright 2020 The HuggingFace Team. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import contextlib
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import importlib
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import io
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import unittest
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import requests
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import transformers
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# Try to import everything from transformers to ensure every object can be loaded.
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from transformers import * # noqa F406
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from transformers.file_utils import (
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CONFIG_NAME,
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WEIGHTS_NAME,
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ContextManagers,
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filename_to_url,
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get_from_cache,
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hf_bucket_url,
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)
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from transformers.testing_utils import DUMMY_UNKNOWN_IDENTIFIER
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MODEL_ID = DUMMY_UNKNOWN_IDENTIFIER
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# An actual model hosted on huggingface.co
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REVISION_ID_DEFAULT = "main"
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# Default branch name
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REVISION_ID_ONE_SPECIFIC_COMMIT = "f2c752cfc5c0ab6f4bdec59acea69eefbee381c2"
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# One particular commit (not the top of `main`)
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REVISION_ID_INVALID = "aaaaaaa"
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# This commit does not exist, so we should 404.
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PINNED_SHA1 = "d9e9f15bc825e4b2c9249e9578f884bbcb5e3684"
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# Sha-1 of config.json on the top of `main`, for checking purposes
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PINNED_SHA256 = "4b243c475af8d0a7754e87d7d096c92e5199ec2fe168a2ee7998e3b8e9bcb1d3"
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# Sha-256 of pytorch_model.bin on the top of `main`, for checking purposes
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# Dummy contexts to test `ContextManagers`
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@contextlib.contextmanager
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def context_en():
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print("Welcome!")
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yield
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print("Bye!")
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@contextlib.contextmanager
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def context_fr():
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print("Bonjour!")
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yield
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print("Au revoir!")
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def test_module_spec():
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assert transformers.__spec__ is not None
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assert importlib.util.find_spec("transformers") is not None
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class GetFromCacheTests(unittest.TestCase):
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def test_bogus_url(self):
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# This lets us simulate no connection
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# as the error raised is the same
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# `ConnectionError`
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url = "https://bogus"
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with self.assertRaisesRegex(ValueError, "Connection error"):
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_ = get_from_cache(url)
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def test_file_not_found(self):
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# Valid revision (None) but missing file.
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url = hf_bucket_url(MODEL_ID, filename="missing.bin")
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with self.assertRaisesRegex(requests.exceptions.HTTPError, "404 Client Error"):
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_ = get_from_cache(url)
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def test_revision_not_found(self):
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# Valid file but missing revision
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url = hf_bucket_url(MODEL_ID, filename=CONFIG_NAME, revision=REVISION_ID_INVALID)
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with self.assertRaisesRegex(requests.exceptions.HTTPError, "404 Client Error"):
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_ = get_from_cache(url)
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def test_standard_object(self):
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url = hf_bucket_url(MODEL_ID, filename=CONFIG_NAME, revision=REVISION_ID_DEFAULT)
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filepath = get_from_cache(url, force_download=True)
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metadata = filename_to_url(filepath)
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self.assertEqual(metadata, (url, f'"{PINNED_SHA1}"'))
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def test_standard_object_rev(self):
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# Same object, but different revision
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url = hf_bucket_url(MODEL_ID, filename=CONFIG_NAME, revision=REVISION_ID_ONE_SPECIFIC_COMMIT)
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filepath = get_from_cache(url, force_download=True)
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metadata = filename_to_url(filepath)
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self.assertNotEqual(metadata[1], f'"{PINNED_SHA1}"')
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# Caution: check that the etag is *not* equal to the one from `test_standard_object`
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def test_lfs_object(self):
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url = hf_bucket_url(MODEL_ID, filename=WEIGHTS_NAME, revision=REVISION_ID_DEFAULT)
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filepath = get_from_cache(url, force_download=True)
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metadata = filename_to_url(filepath)
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self.assertEqual(metadata, (url, f'"{PINNED_SHA256}"'))
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class ContextManagerTests(unittest.TestCase):
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@unittest.mock.patch("sys.stdout", new_callable=io.StringIO)
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def test_no_context(self, mock_stdout):
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with ContextManagers([]):
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print("Transformers are awesome!")
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# The print statement adds a new line at the end of the output
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self.assertEqual(mock_stdout.getvalue(), "Transformers are awesome!\n")
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@unittest.mock.patch("sys.stdout", new_callable=io.StringIO)
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def test_one_context(self, mock_stdout):
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with ContextManagers([context_en()]):
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print("Transformers are awesome!")
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# The output should be wrapped with an English welcome and goodbye
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self.assertEqual(mock_stdout.getvalue(), "Welcome!\nTransformers are awesome!\nBye!\n")
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@unittest.mock.patch("sys.stdout", new_callable=io.StringIO)
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def test_two_context(self, mock_stdout):
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with ContextManagers([context_fr(), context_en()]):
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print("Transformers are awesome!")
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# The output should be wrapped with an English and French welcome and goodbye
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self.assertEqual(mock_stdout.getvalue(), "Bonjour!\nWelcome!\nTransformers are awesome!\nBye!\nAu revoir!\n")
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