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# Copyright (C) 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
from typing import Iterator, Type
import pytest
import command
import error
import fetch
import git_command
import project
from subcmds import all_modules
_IMPORTS = all_modules + [
error,
project,
git_command,
fetch,
command,
]
def get_exceptions() -> Iterator[Type[Exception]]:
"""Return all our custom exceptions."""
for entry in _IMPORTS:
for name in dir(entry):
cls = getattr(entry, name)
if isinstance(cls, type) and issubclass(cls, Exception):
yield cls
def test_exception_lookup() -> None:
"""Make sure our introspection logic works."""
classes = list(get_exceptions())
assert error.HookError in classes
# Don't assert the exact number to avoid being a change-detector test.
assert len(classes) > 10
@pytest.mark.parametrize("cls", get_exceptions())
def test_pickle(cls: Type[Exception]) -> None:
"""Try to pickle all the exceptions."""
args = inspect.getfullargspec(cls.__init__).args[1:]
obj = cls(*args)
p = pickle.dumps(obj)
try:
newobj = pickle.loads(p)
except Exception as e:
pytest.fail(
f"Class {cls} is unable to be pickled: {e}\n"
"Incomplete super().__init__(...) call?"
)
assert isinstance(newobj, cls)
assert str(obj) == str(newobj)
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