Switch test files to the standard test_*.py scheme.

tests/test_configuration_common.py

@@ -0,0 +1,70 @@
+# 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.
+from __future__ import absolute_import, division, print_function
+
+import json
+import os
+import unittest
+
+from .tokenization_tests_commons import TemporaryDirectory
+
+
+class ConfigTester(object):
+    def __init__(self, parent, config_class=None, **kwargs):
+        self.parent = parent
+        self.config_class = config_class
+        self.inputs_dict = kwargs
+
+    def create_and_test_config_common_properties(self):
+        config = self.config_class(**self.inputs_dict)
+        self.parent.assertTrue(hasattr(config, "vocab_size"))
+        self.parent.assertTrue(hasattr(config, "hidden_size"))
+        self.parent.assertTrue(hasattr(config, "num_attention_heads"))
+        self.parent.assertTrue(hasattr(config, "num_hidden_layers"))
+
+    def create_and_test_config_to_json_string(self):
+        config = self.config_class(**self.inputs_dict)
+        obj = json.loads(config.to_json_string())
+        for key, value in self.inputs_dict.items():
+            self.parent.assertEqual(obj[key], value)
+
+    def create_and_test_config_to_json_file(self):
+        config_first = self.config_class(**self.inputs_dict)
+
+        with TemporaryDirectory() as tmpdirname:
+            json_file_path = os.path.join(tmpdirname, "config.json")
+            config_first.to_json_file(json_file_path)
+            config_second = self.config_class.from_json_file(json_file_path)
+
+        self.parent.assertEqual(config_second.to_dict(), config_first.to_dict())
+
+    def create_and_test_config_from_and_save_pretrained(self):
+        config_first = self.config_class(**self.inputs_dict)
+
+        with TemporaryDirectory() as tmpdirname:
+            config_first.save_pretrained(tmpdirname)
+            config_second = self.config_class.from_pretrained(tmpdirname)
+
+        self.parent.assertEqual(config_second.to_dict(), config_first.to_dict())
+
+    def run_common_tests(self):
+        self.create_and_test_config_common_properties()
+        self.create_and_test_config_to_json_string()
+        self.create_and_test_config_to_json_file()
+        self.create_and_test_config_from_and_save_pretrained()
+
+
+if __name__ == "__main__":
+    unittest.main()