mirror of
https://mau.dev/maunium/synapse.git
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9192d74b0b
This implements a fake OIDC server, which intercepts calls to the HTTP client. Improves accuracy of tests by covering more internal methods. One particular example was the ID token validation, which previously mocked. This uncovered an incorrect dependency: Synapse actually requires at least authlib 0.15.1, not 0.14.0.
153 lines
4.5 KiB
Python
153 lines
4.5 KiB
Python
# Copyright 2019-2021 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Utilities for running the unit tests
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"""
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import json
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import sys
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import warnings
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from asyncio import Future
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from binascii import unhexlify
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from typing import Awaitable, Callable, Tuple, TypeVar
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from unittest.mock import Mock
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import attr
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import zope.interface
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from twisted.python.failure import Failure
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from twisted.web.client import ResponseDone
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from twisted.web.http import RESPONSES
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from twisted.web.http_headers import Headers
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from twisted.web.iweb import IResponse
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from synapse.types import JsonDict
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TV = TypeVar("TV")
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def get_awaitable_result(awaitable: Awaitable[TV]) -> TV:
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"""Get the result from an Awaitable which should have completed
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Asserts that the given awaitable has a result ready, and returns its value
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"""
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i = awaitable.__await__()
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try:
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next(i)
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except StopIteration as e:
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# awaitable returned a result
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return e.value
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# if next didn't raise, the awaitable hasn't completed.
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raise Exception("awaitable has not yet completed")
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def make_awaitable(result: TV) -> Awaitable[TV]:
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"""
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Makes an awaitable, suitable for mocking an `async` function.
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This uses Futures as they can be awaited multiple times so can be returned
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to multiple callers.
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"""
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future: Future[TV] = Future()
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future.set_result(result)
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return future
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def setup_awaitable_errors() -> Callable[[], None]:
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"""
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Convert warnings from a non-awaited coroutines into errors.
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"""
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warnings.simplefilter("error", RuntimeWarning)
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# unraisablehook was added in Python 3.8.
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if not hasattr(sys, "unraisablehook"):
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return lambda: None
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# State shared between unraisablehook and check_for_unraisable_exceptions.
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unraisable_exceptions = []
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orig_unraisablehook = sys.unraisablehook
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def unraisablehook(unraisable):
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unraisable_exceptions.append(unraisable.exc_value)
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def cleanup():
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"""
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A method to be used as a clean-up that fails a test-case if there are any new unraisable exceptions.
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"""
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sys.unraisablehook = orig_unraisablehook
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if unraisable_exceptions:
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raise unraisable_exceptions.pop()
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sys.unraisablehook = unraisablehook
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return cleanup
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def simple_async_mock(return_value=None, raises=None) -> Mock:
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# AsyncMock is not available in python3.5, this mimics part of its behaviour
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async def cb(*args, **kwargs):
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if raises:
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raise raises
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return return_value
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return Mock(side_effect=cb)
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# Type ignore: it does not fully implement IResponse, but is good enough for tests
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@zope.interface.implementer(IResponse)
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@attr.s(slots=True, frozen=True, auto_attribs=True)
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class FakeResponse: # type: ignore[misc]
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"""A fake twisted.web.IResponse object
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there is a similar class at treq.test.test_response, but it lacks a `phrase`
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attribute, and didn't support deliverBody until recently.
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"""
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version: Tuple[bytes, int, int] = (b"HTTP", 1, 1)
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# HTTP response code
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code: int = 200
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# body of the response
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body: bytes = b""
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headers: Headers = attr.Factory(Headers)
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@property
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def phrase(self):
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return RESPONSES.get(self.code, b"Unknown Status")
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@property
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def length(self):
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return len(self.body)
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def deliverBody(self, protocol):
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protocol.dataReceived(self.body)
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protocol.connectionLost(Failure(ResponseDone()))
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@classmethod
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def json(cls, *, code: int = 200, payload: JsonDict) -> "FakeResponse":
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headers = Headers({"Content-Type": ["application/json"]})
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body = json.dumps(payload).encode("utf-8")
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return cls(code=code, body=body, headers=headers)
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# A small image used in some tests.
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#
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# Resolution: 1×1, MIME type: image/png, Extension: png, Size: 67 B
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SMALL_PNG = unhexlify(
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b"89504e470d0a1a0a0000000d4948445200000001000000010806"
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b"0000001f15c4890000000a49444154789c63000100000500010d"
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b"0a2db40000000049454e44ae426082"
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)
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