blob: 82b00c24a1b932f2326d6d38a47e545b2960acba [file] [log] [blame]
# Copyright 2021 The Android Open Source Project
#
# 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.
"""Unittests for the error.py module."""
import inspect
import pickle
import unittest
import error
class PickleTests(unittest.TestCase):
"""Make sure all our custom exceptions can be pickled."""
def getExceptions(self):
"""Return all our custom exceptions."""
for name in dir(error):
cls = getattr(error, name)
if isinstance(cls, type) and issubclass(cls, Exception):
yield cls
def testExceptionLookup(self):
"""Make sure our introspection logic works."""
classes = list(self.getExceptions())
self.assertIn(error.HookError, classes)
# Don't assert the exact number to avoid being a change-detector test.
self.assertGreater(len(classes), 10)
def testPickle(self):
"""Try to pickle all the exceptions."""
for cls in self.getExceptions():
args = inspect.getfullargspec(cls.__init__).args[1:]
obj = cls(*args)
p = pickle.dumps(obj)
try:
newobj = pickle.loads(p)
except Exception as e: # pylint: disable=broad-except
self.fail('Class %s is unable to be pickled: %s\n'
'Incomplete super().__init__(...) call?' % (cls, e))
self.assertIsInstance(newobj, cls)
self.assertEqual(str(obj), str(newobj))