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# coding=utf-8
# Copyright 2019-present, the HuggingFace Inc. team.
#
# 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 os
import unittest
from transformers.models.auto.configuration_auto import CONFIG_MAPPING, AutoConfig
from transformers.models.bert.configuration_bert import BertConfig
from transformers.models.roberta.configuration_roberta import RobertaConfig
from transformers.testing_utils import DUMMY_UNKWOWN_IDENTIFIER
SAMPLE_ROBERTA_CONFIG = os.path.join(os.path.dirname(os.path.abspath(__file__)), "fixtures/dummy-config.json")
class AutoConfigTest(unittest.TestCase):
def test_config_from_model_shortcut(self):
config = AutoConfig.from_pretrained("bert-base-uncased")
self.assertIsInstance(config, BertConfig)
def test_config_model_type_from_local_file(self):
config = AutoConfig.from_pretrained(SAMPLE_ROBERTA_CONFIG)
self.assertIsInstance(config, RobertaConfig)
def test_config_model_type_from_model_identifier(self):
config = AutoConfig.from_pretrained(DUMMY_UNKWOWN_IDENTIFIER)
self.assertIsInstance(config, RobertaConfig)
def test_config_for_model_str(self):
config = AutoConfig.for_model("roberta")
self.assertIsInstance(config, RobertaConfig)
def test_pattern_matching_fallback(self):
"""
In cases where config.json doesn't include a model_type,
perform a few safety checks on the config mapping's order.
"""
# no key string should be included in a later key string (typical failure case)
keys = list(CONFIG_MAPPING.keys())
for i, key in enumerate(keys):
self.assertFalse(any(key in later_key for later_key in keys[i + 1 :]))
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