mirror of
https://github.com/element-hq/synapse.git
synced 2024-12-21 03:42:55 +03:00
132 lines
4 KiB
Python
132 lines
4 KiB
Python
# Copyright 2019-2021 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 json
|
||
import sys
|
||
import warnings
|
||
from binascii import unhexlify
|
||
from typing import TYPE_CHECKING, Awaitable, Callable, Tuple, TypeVar
|
||
|
||
import attr
|
||
import zope.interface
|
||
|
||
from twisted.internet.interfaces import IProtocol
|
||
from twisted.python.failure import Failure
|
||
from twisted.web.client import ResponseDone
|
||
from twisted.web.http import RESPONSES
|
||
from twisted.web.http_headers import Headers
|
||
from twisted.web.iweb import IResponse
|
||
|
||
from synapse.types import JsonSerializable
|
||
|
||
if TYPE_CHECKING:
|
||
from sys import UnraisableHookArgs
|
||
|
||
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 setup_awaitable_errors() -> Callable[[], None]:
|
||
"""
|
||
Convert warnings from a non-awaited coroutines into errors.
|
||
"""
|
||
warnings.simplefilter("error", RuntimeWarning)
|
||
|
||
# State shared between unraisablehook and check_for_unraisable_exceptions.
|
||
unraisable_exceptions = []
|
||
orig_unraisablehook = sys.unraisablehook
|
||
|
||
def unraisablehook(unraisable: "UnraisableHookArgs") -> None:
|
||
unraisable_exceptions.append(unraisable.exc_value)
|
||
|
||
def cleanup() -> None:
|
||
"""
|
||
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
|
||
if unraisable_exceptions:
|
||
exc = unraisable_exceptions.pop()
|
||
assert exc is not None
|
||
raise exc
|
||
|
||
sys.unraisablehook = unraisablehook
|
||
|
||
return cleanup
|
||
|
||
|
||
# Type ignore: it does not fully implement IResponse, but is good enough for tests
|
||
@zope.interface.implementer(IResponse)
|
||
@attr.s(slots=True, frozen=True, auto_attribs=True)
|
||
class FakeResponse: # type: ignore[misc]
|
||
"""A fake twisted.web.IResponse object
|
||
|
||
there is a similar class at treq.test.test_response, but it lacks a `phrase`
|
||
attribute, and didn't support deliverBody until recently.
|
||
"""
|
||
|
||
version: Tuple[bytes, int, int] = (b"HTTP", 1, 1)
|
||
|
||
# HTTP response code
|
||
code: int = 200
|
||
|
||
# body of the response
|
||
body: bytes = b""
|
||
|
||
headers: Headers = attr.Factory(Headers)
|
||
|
||
@property
|
||
def phrase(self) -> bytes:
|
||
return RESPONSES.get(self.code, b"Unknown Status")
|
||
|
||
@property
|
||
def length(self) -> int:
|
||
return len(self.body)
|
||
|
||
def deliverBody(self, protocol: IProtocol) -> None:
|
||
protocol.dataReceived(self.body)
|
||
protocol.connectionLost(Failure(ResponseDone()))
|
||
|
||
@classmethod
|
||
def json(cls, *, code: int = 200, payload: JsonSerializable) -> "FakeResponse":
|
||
headers = Headers({"Content-Type": ["application/json"]})
|
||
body = json.dumps(payload).encode("utf-8")
|
||
return cls(code=code, body=body, headers=headers)
|
||
|
||
|
||
# A small image used in some tests.
|
||
#
|
||
# Resolution: 1×1, MIME type: image/png, Extension: png, Size: 67 B
|
||
SMALL_PNG = unhexlify(
|
||
b"89504e470d0a1a0a0000000d4948445200000001000000010806"
|
||
b"0000001f15c4890000000a49444154789c63000100000500010d"
|
||
b"0a2db40000000049454e44ae426082"
|
||
)
|