mirror of
https://github.com/element-hq/synapse.git
synced 2024-11-26 19:47:05 +03:00
82 lines
2.5 KiB
Python
82 lines
2.5 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2019 New Vector Ltd
|
|
# Copyright 2020 The Matrix.org Foundation C.I.C
|
|
#
|
|
# 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.
|
|
|
|
"""
|
|
Utilities for running the unit tests
|
|
"""
|
|
import sys
|
|
import warnings
|
|
from asyncio import Future
|
|
from typing import Any, Awaitable, Callable, TypeVar
|
|
|
|
TV = TypeVar("TV")
|
|
|
|
|
|
def get_awaitable_result(awaitable: Awaitable[TV]) -> TV:
|
|
"""Get the result from an Awaitable which should have completed
|
|
|
|
Asserts that the given awaitable has a result ready, and returns its value
|
|
"""
|
|
i = awaitable.__await__()
|
|
try:
|
|
next(i)
|
|
except StopIteration as e:
|
|
# awaitable returned a result
|
|
return e.value
|
|
|
|
# if next didn't raise, the awaitable hasn't completed.
|
|
raise Exception("awaitable has not yet completed")
|
|
|
|
|
|
def make_awaitable(result: Any) -> Awaitable[Any]:
|
|
"""
|
|
Makes an awaitable, suitable for mocking an `async` function.
|
|
This uses Futures as they can be awaited multiple times so can be returned
|
|
to multiple callers.
|
|
"""
|
|
future = Future() # type: ignore
|
|
future.set_result(result)
|
|
return future
|
|
|
|
|
|
def setup_awaitable_errors() -> Callable[[], None]:
|
|
"""
|
|
Convert warnings from a non-awaited coroutines into errors.
|
|
"""
|
|
warnings.simplefilter("error", RuntimeWarning)
|
|
|
|
# unraisablehook was added in Python 3.8.
|
|
if not hasattr(sys, "unraisablehook"):
|
|
return lambda: None
|
|
|
|
# State shared between unraisablehook and check_for_unraisable_exceptions.
|
|
unraisable_exceptions = []
|
|
orig_unraisablehook = sys.unraisablehook # type: ignore
|
|
|
|
def unraisablehook(unraisable):
|
|
unraisable_exceptions.append(unraisable.exc_value)
|
|
|
|
def cleanup():
|
|
"""
|
|
A method to be used as a clean-up that fails a test-case if there are any new unraisable exceptions.
|
|
"""
|
|
sys.unraisablehook = orig_unraisablehook # type: ignore
|
|
if unraisable_exceptions:
|
|
raise unraisable_exceptions.pop()
|
|
|
|
sys.unraisablehook = unraisablehook # type: ignore
|
|
|
|
return cleanup
|