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https://git.anonymousland.org/anonymousland/synapse-product.git
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101 lines
3.9 KiB
Python
101 lines
3.9 KiB
Python
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# Copyright 2022 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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# Unles4s 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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from http import HTTPStatus
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from typing import Any, Callable, Optional, Union
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from unittest import mock
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from twisted.internet.error import ConnectionDone
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from synapse.http.server import (
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HTTP_STATUS_REQUEST_CANCELLED,
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respond_with_html_bytes,
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respond_with_json,
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)
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from synapse.types import JsonDict
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from tests import unittest
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from tests.server import FakeChannel, ThreadedMemoryReactorClock
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class EndpointCancellationTestHelperMixin(unittest.TestCase):
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"""Provides helper methods for testing cancellation of endpoints."""
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def _test_disconnect(
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self,
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reactor: ThreadedMemoryReactorClock,
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channel: FakeChannel,
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expect_cancellation: bool,
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expected_body: Union[bytes, JsonDict],
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expected_code: Optional[int] = None,
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) -> None:
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"""Disconnects an in-flight request and checks the response.
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Args:
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reactor: The twisted reactor running the request handler.
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channel: The `FakeChannel` for the request.
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expect_cancellation: `True` if request processing is expected to be
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cancelled, `False` if the request should run to completion.
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expected_body: The expected response for the request.
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expected_code: The expected status code for the request. Defaults to `200`
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or `499` depending on `expect_cancellation`.
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"""
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# Determine the expected status code.
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if expected_code is None:
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if expect_cancellation:
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expected_code = HTTP_STATUS_REQUEST_CANCELLED
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else:
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expected_code = HTTPStatus.OK
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request = channel.request
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self.assertFalse(
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channel.is_finished(),
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"Request finished before we could disconnect - "
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"was `await_result=False` passed to `make_request`?",
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)
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# We're about to disconnect the request. This also disconnects the channel, so
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# we have to rely on mocks to extract the response.
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respond_method: Callable[..., Any]
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if isinstance(expected_body, bytes):
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respond_method = respond_with_html_bytes
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else:
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respond_method = respond_with_json
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with mock.patch(
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f"synapse.http.server.{respond_method.__name__}", wraps=respond_method
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) as respond_mock:
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# Disconnect the request.
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request.connectionLost(reason=ConnectionDone())
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if expect_cancellation:
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# An immediate cancellation is expected.
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respond_mock.assert_called_once()
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args, _kwargs = respond_mock.call_args
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code, body = args[1], args[2]
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self.assertEqual(code, expected_code)
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self.assertEqual(request.code, expected_code)
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self.assertEqual(body, expected_body)
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else:
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respond_mock.assert_not_called()
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# The handler is expected to run to completion.
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reactor.pump([1.0])
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respond_mock.assert_called_once()
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args, _kwargs = respond_mock.call_args
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code, body = args[1], args[2]
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self.assertEqual(code, expected_code)
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self.assertEqual(request.code, expected_code)
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self.assertEqual(body, expected_body)
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