236 lines
7.9 KiB
Python
236 lines
7.9 KiB
Python
# Copyright 2019 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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import json
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import logging
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from io import BytesIO, StringIO
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from typing import cast
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from unittest.mock import Mock, patch
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from twisted.web.http import HTTPChannel
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from twisted.web.server import Request
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from synapse.http.site import SynapseRequest
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from synapse.logging._terse_json import JsonFormatter, TerseJsonFormatter
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from synapse.logging.context import LoggingContext, LoggingContextFilter
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from synapse.types import JsonDict
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from tests.logging import LoggerCleanupMixin
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from tests.server import FakeChannel, get_clock
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from tests.unittest import TestCase
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class TerseJsonTestCase(LoggerCleanupMixin, TestCase):
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def setUp(self) -> None:
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self.output = StringIO()
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self.reactor, _ = get_clock()
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def get_log_line(self) -> JsonDict:
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# One log message, with a single trailing newline.
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data = self.output.getvalue()
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logs = data.splitlines()
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self.assertEqual(len(logs), 1)
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self.assertEqual(data.count("\n"), 1)
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return json.loads(logs[0])
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def test_terse_json_output(self) -> None:
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"""
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The Terse JSON formatter converts log messages to JSON.
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"""
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handler = logging.StreamHandler(self.output)
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handler.setFormatter(TerseJsonFormatter())
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logger = self.get_logger(handler)
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logger.info("Hello there, %s!", "wally")
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log = self.get_log_line()
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# The terse logger should give us these keys.
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expected_log_keys = [
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"log",
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"time",
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"level",
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"namespace",
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]
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self.assertCountEqual(log.keys(), expected_log_keys)
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self.assertEqual(log["log"], "Hello there, wally!")
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def test_extra_data(self) -> None:
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"""
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Additional information can be included in the structured logging.
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"""
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handler = logging.StreamHandler(self.output)
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handler.setFormatter(TerseJsonFormatter())
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logger = self.get_logger(handler)
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logger.info(
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"Hello there, %s!", "wally", extra={"foo": "bar", "int": 3, "bool": True}
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)
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log = self.get_log_line()
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# The terse logger should give us these keys.
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expected_log_keys = [
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"log",
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"time",
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"level",
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"namespace",
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# The additional keys given via extra.
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"foo",
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"int",
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"bool",
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]
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self.assertCountEqual(log.keys(), expected_log_keys)
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# Check the values of the extra fields.
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self.assertEqual(log["foo"], "bar")
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self.assertEqual(log["int"], 3)
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self.assertIs(log["bool"], True)
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def test_json_output(self) -> None:
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"""
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The Terse JSON formatter converts log messages to JSON.
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"""
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handler = logging.StreamHandler(self.output)
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handler.setFormatter(JsonFormatter())
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logger = self.get_logger(handler)
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logger.info("Hello there, %s!", "wally")
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log = self.get_log_line()
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# The terse logger should give us these keys.
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expected_log_keys = [
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"log",
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"level",
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"namespace",
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]
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self.assertCountEqual(log.keys(), expected_log_keys)
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self.assertEqual(log["log"], "Hello there, wally!")
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def test_with_context(self) -> None:
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"""
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The logging context should be added to the JSON response.
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"""
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handler = logging.StreamHandler(self.output)
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handler.setFormatter(JsonFormatter())
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handler.addFilter(LoggingContextFilter())
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logger = self.get_logger(handler)
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with LoggingContext("name"):
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logger.info("Hello there, %s!", "wally")
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log = self.get_log_line()
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# The terse logger should give us these keys.
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expected_log_keys = [
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"log",
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"level",
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"namespace",
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"request",
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]
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self.assertCountEqual(log.keys(), expected_log_keys)
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self.assertEqual(log["log"], "Hello there, wally!")
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self.assertEqual(log["request"], "name")
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def test_with_request_context(self) -> None:
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"""
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Information from the logging context request should be added to the JSON response.
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"""
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handler = logging.StreamHandler(self.output)
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handler.setFormatter(JsonFormatter())
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handler.addFilter(LoggingContextFilter())
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logger = self.get_logger(handler)
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# A full request isn't needed here.
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site = Mock(spec=["site_tag", "server_version_string", "getResourceFor"])
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site.site_tag = "test-site"
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site.server_version_string = "Server v1"
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site.reactor = Mock()
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site.experimental_cors_msc3886 = False
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request = SynapseRequest(
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cast(HTTPChannel, FakeChannel(site, self.reactor)), site
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)
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# Call requestReceived to finish instantiating the object.
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request.content = BytesIO()
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# Partially skip some internal processing of SynapseRequest.
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request._started_processing = Mock() # type: ignore[assignment]
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request.request_metrics = Mock(spec=["name"])
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with patch.object(Request, "render"):
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request.requestReceived(b"POST", b"/_matrix/client/versions", b"1.1")
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# Also set the requester to ensure the processing works.
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request.requester = "@foo:test"
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with LoggingContext(
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request.get_request_id(), parent_context=request.logcontext
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):
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logger.info("Hello there, %s!", "wally")
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log = self.get_log_line()
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# The terse logger includes additional request information, if possible.
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expected_log_keys = [
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"log",
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"level",
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"namespace",
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"request",
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"ip_address",
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"site_tag",
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"requester",
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"authenticated_entity",
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"method",
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"url",
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"protocol",
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"user_agent",
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]
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self.assertCountEqual(log.keys(), expected_log_keys)
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self.assertEqual(log["log"], "Hello there, wally!")
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self.assertTrue(log["request"].startswith("POST-"))
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self.assertEqual(log["ip_address"], "127.0.0.1")
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self.assertEqual(log["site_tag"], "test-site")
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self.assertEqual(log["requester"], "@foo:test")
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self.assertEqual(log["authenticated_entity"], "@foo:test")
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self.assertEqual(log["method"], "POST")
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self.assertEqual(log["url"], "/_matrix/client/versions")
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self.assertEqual(log["protocol"], "1.1")
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self.assertEqual(log["user_agent"], "")
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def test_with_exception(self) -> None:
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"""
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The logging exception type & value should be added to the JSON response.
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"""
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handler = logging.StreamHandler(self.output)
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handler.setFormatter(JsonFormatter())
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logger = self.get_logger(handler)
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try:
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raise ValueError("That's wrong, you wally!")
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except ValueError:
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logger.exception("Hello there, %s!", "wally")
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log = self.get_log_line()
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# The terse logger should give us these keys.
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expected_log_keys = [
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"log",
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"level",
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"namespace",
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"exc_type",
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"exc_value",
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]
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self.assertCountEqual(log.keys(), expected_log_keys)
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self.assertEqual(log["log"], "Hello there, wally!")
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self.assertEqual(log["exc_type"], "ValueError")
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self.assertEqual(log["exc_value"], "That's wrong, you wally!")
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