mirror of
https://github.com/open-telemetry/opentelemetry-python-contrib.git
synced 2025-07-29 13:12:39 +08:00
487 lines
17 KiB
Python
487 lines
17 KiB
Python
# Copyright 2020, OpenTelemetry Authors
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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 asyncio
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import contextlib
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import typing
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import unittest
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import urllib.parse
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from http import HTTPStatus
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from unittest import mock
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import aiohttp
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import aiohttp.test_utils
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import yarl
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from pkg_resources import iter_entry_points
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from opentelemetry import context
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from opentelemetry.instrumentation import aiohttp_client
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from opentelemetry.instrumentation.aiohttp_client import (
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AioHttpClientInstrumentor,
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)
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from opentelemetry.test.test_base import TestBase
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from opentelemetry.trace import StatusCode
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def run_with_test_server(
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runnable: typing.Callable, url: str, handler: typing.Callable
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) -> typing.Tuple[str, int]:
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async def do_request():
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app = aiohttp.web.Application()
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parsed_url = urllib.parse.urlparse(url)
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app.add_routes([aiohttp.web.get(parsed_url.path, handler)])
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app.add_routes([aiohttp.web.post(parsed_url.path, handler)])
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app.add_routes([aiohttp.web.patch(parsed_url.path, handler)])
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with contextlib.suppress(aiohttp.ClientError):
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async with aiohttp.test_utils.TestServer(app) as server:
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netloc = (server.host, server.port)
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await server.start_server()
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await runnable(server)
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return netloc
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loop = asyncio.get_event_loop()
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return loop.run_until_complete(do_request())
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class TestAioHttpIntegration(TestBase):
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def assert_spans(self, spans):
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self.assertEqual(
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[
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(
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span.name,
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(span.status.status_code, span.status.description),
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dict(span.attributes),
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)
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for span in self.memory_exporter.get_finished_spans()
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],
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spans,
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)
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def test_url_path_span_name(self):
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for url, expected in (
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(
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yarl.URL("http://hostname.local:1234/some/path?query=params"),
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"/some/path",
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),
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(yarl.URL("http://hostname.local:1234"), "/"),
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):
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with self.subTest(url=url):
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params = aiohttp.TraceRequestStartParams("METHOD", url, {})
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actual = aiohttp_client.url_path_span_name(params)
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self.assertEqual(actual, expected)
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self.assertIsInstance(actual, str)
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@staticmethod
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def _http_request(
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trace_config,
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url: str,
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method: str = "GET",
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status_code: int = HTTPStatus.OK,
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request_handler: typing.Callable = None,
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**kwargs
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) -> typing.Tuple[str, int]:
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"""Helper to start an aiohttp test server and send an actual HTTP request to it."""
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async def default_handler(request):
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assert "traceparent" in request.headers
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return aiohttp.web.Response(status=int(status_code))
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async def client_request(server: aiohttp.test_utils.TestServer):
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async with aiohttp.test_utils.TestClient(
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server, trace_configs=[trace_config]
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) as client:
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await client.request(
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method, url, trace_request_ctx={}, **kwargs
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)
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handler = request_handler or default_handler
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return run_with_test_server(client_request, url, handler)
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def test_status_codes(self):
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for status_code, span_status in (
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(HTTPStatus.OK, StatusCode.UNSET),
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(HTTPStatus.TEMPORARY_REDIRECT, StatusCode.UNSET),
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(HTTPStatus.SERVICE_UNAVAILABLE, StatusCode.ERROR),
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(HTTPStatus.GATEWAY_TIMEOUT, StatusCode.ERROR,),
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):
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with self.subTest(status_code=status_code):
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host, port = self._http_request(
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trace_config=aiohttp_client.create_trace_config(),
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url="/test-path?query=param#foobar",
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status_code=status_code,
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)
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self.assert_spans(
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[
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(
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"HTTP GET",
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(span_status, None),
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{
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"http.method": "GET",
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"http.url": "http://{}:{}/test-path?query=param#foobar".format(
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host, port
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),
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"http.status_code": int(status_code),
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},
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)
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]
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)
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self.memory_exporter.clear()
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def test_not_recording(self):
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mock_tracer = mock.Mock()
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mock_span = mock.Mock()
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mock_span.is_recording.return_value = False
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mock_tracer.start_span.return_value = mock_span
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with mock.patch("opentelemetry.trace.get_tracer"):
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# pylint: disable=W0612
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host, port = self._http_request(
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trace_config=aiohttp_client.create_trace_config(),
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url="/test-path?query=param#foobar",
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)
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self.assertFalse(mock_span.is_recording())
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self.assertTrue(mock_span.is_recording.called)
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self.assertFalse(mock_span.set_attribute.called)
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self.assertFalse(mock_span.set_status.called)
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def test_span_name_option(self):
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for span_name, method, path, expected in (
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("static", "POST", "/static-span-name", "static"),
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(
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lambda params: "{} - {}".format(
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params.method, params.url.path
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),
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"PATCH",
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"/some/path",
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"PATCH - /some/path",
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),
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):
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with self.subTest(span_name=span_name, method=method, path=path):
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host, port = self._http_request(
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trace_config=aiohttp_client.create_trace_config(
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span_name=span_name
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),
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method=method,
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url=path,
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status_code=HTTPStatus.OK,
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)
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self.assert_spans(
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[
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(
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expected,
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(StatusCode.UNSET, None),
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{
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"http.method": method,
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"http.url": "http://{}:{}{}".format(
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host, port, path
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),
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"http.status_code": int(HTTPStatus.OK),
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},
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)
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]
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)
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self.memory_exporter.clear()
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def test_url_filter_option(self):
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# Strips all query params from URL before adding as a span attribute.
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def strip_query_params(url: yarl.URL) -> str:
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return str(url.with_query(None))
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host, port = self._http_request(
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trace_config=aiohttp_client.create_trace_config(
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url_filter=strip_query_params
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),
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url="/some/path?query=param&other=param2",
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status_code=HTTPStatus.OK,
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)
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self.assert_spans(
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[
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(
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"HTTP GET",
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(StatusCode.UNSET, None),
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{
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"http.method": "GET",
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"http.url": "http://{}:{}/some/path".format(
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host, port
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),
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"http.status_code": int(HTTPStatus.OK),
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},
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)
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]
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)
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def test_connection_errors(self):
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trace_configs = [aiohttp_client.create_trace_config()]
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for url, expected_status in (
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("http://this-is-unknown.local/", StatusCode.ERROR),
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("http://127.0.0.1:1/", StatusCode.ERROR),
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):
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with self.subTest(expected_status=expected_status):
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async def do_request(url):
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async with aiohttp.ClientSession(
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trace_configs=trace_configs,
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) as session:
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async with session.get(url):
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pass
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loop = asyncio.get_event_loop()
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with self.assertRaises(aiohttp.ClientConnectorError):
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loop.run_until_complete(do_request(url))
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self.assert_spans(
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[
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(
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"HTTP GET",
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(expected_status, None),
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{"http.method": "GET", "http.url": url},
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)
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]
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)
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self.memory_exporter.clear()
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def test_timeout(self):
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async def request_handler(request):
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await asyncio.sleep(1)
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assert "traceparent" in request.headers
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return aiohttp.web.Response()
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host, port = self._http_request(
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trace_config=aiohttp_client.create_trace_config(),
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url="/test_timeout",
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request_handler=request_handler,
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timeout=aiohttp.ClientTimeout(sock_read=0.01),
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)
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self.assert_spans(
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[
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(
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"HTTP GET",
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(StatusCode.ERROR, None),
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{
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"http.method": "GET",
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"http.url": "http://{}:{}/test_timeout".format(
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host, port
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),
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},
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)
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]
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)
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def test_too_many_redirects(self):
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async def request_handler(request):
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# Create a redirect loop.
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location = request.url
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assert "traceparent" in request.headers
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raise aiohttp.web.HTTPFound(location=location)
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host, port = self._http_request(
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trace_config=aiohttp_client.create_trace_config(),
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url="/test_too_many_redirects",
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request_handler=request_handler,
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max_redirects=2,
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)
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self.assert_spans(
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[
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(
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"HTTP GET",
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(StatusCode.ERROR, None),
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{
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"http.method": "GET",
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"http.url": "http://{}:{}/test_too_many_redirects".format(
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host, port
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),
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},
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)
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]
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)
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class TestAioHttpClientInstrumentor(TestBase):
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URL = "/test-path"
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def setUp(self):
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super().setUp()
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AioHttpClientInstrumentor().instrument()
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def tearDown(self):
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super().tearDown()
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AioHttpClientInstrumentor().uninstrument()
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@staticmethod
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# pylint:disable=unused-argument
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async def default_handler(request):
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return aiohttp.web.Response(status=int(200))
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@staticmethod
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def get_default_request(url: str = URL):
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async def default_request(server: aiohttp.test_utils.TestServer):
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async with aiohttp.test_utils.TestClient(server) as session:
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await session.get(url)
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return default_request
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def assert_spans(self, num_spans: int):
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finished_spans = self.memory_exporter.get_finished_spans()
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self.assertEqual(num_spans, len(finished_spans))
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if num_spans == 0:
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return None
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if num_spans == 1:
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return finished_spans[0]
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return finished_spans
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def test_instrument(self):
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host, port = run_with_test_server(
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self.get_default_request(), self.URL, self.default_handler
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)
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span = self.assert_spans(1)
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self.assertEqual("GET", span.attributes["http.method"])
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self.assertEqual(
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"http://{}:{}/test-path".format(host, port),
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span.attributes["http.url"],
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)
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self.assertEqual(200, span.attributes["http.status_code"])
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def test_instrument_with_existing_trace_config(self):
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trace_config = aiohttp.TraceConfig()
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async def create_session(server: aiohttp.test_utils.TestServer):
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async with aiohttp.test_utils.TestClient(
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server, trace_configs=[trace_config]
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) as client:
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# pylint:disable=protected-access
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trace_configs = client.session._trace_configs
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self.assertEqual(2, len(trace_configs))
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self.assertTrue(trace_config in trace_configs)
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async with client as session:
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await session.get(TestAioHttpClientInstrumentor.URL)
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run_with_test_server(create_session, self.URL, self.default_handler)
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self.assert_spans(1)
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def test_uninstrument(self):
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AioHttpClientInstrumentor().uninstrument()
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run_with_test_server(
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self.get_default_request(), self.URL, self.default_handler
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)
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self.assert_spans(0)
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AioHttpClientInstrumentor().instrument()
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run_with_test_server(
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self.get_default_request(), self.URL, self.default_handler
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)
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self.assert_spans(1)
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def test_uninstrument_session(self):
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async def uninstrument_request(server: aiohttp.test_utils.TestServer):
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client = aiohttp.test_utils.TestClient(server)
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AioHttpClientInstrumentor().uninstrument_session(client.session)
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async with client as session:
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await session.get(self.URL)
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run_with_test_server(
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uninstrument_request, self.URL, self.default_handler
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)
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self.assert_spans(0)
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run_with_test_server(
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self.get_default_request(), self.URL, self.default_handler
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)
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self.assert_spans(1)
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def test_suppress_instrumentation(self):
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token = context.attach(
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context.set_value("suppress_instrumentation", True)
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)
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try:
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run_with_test_server(
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self.get_default_request(), self.URL, self.default_handler
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)
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finally:
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context.detach(token)
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self.assert_spans(0)
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@staticmethod
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async def suppressed_request(server: aiohttp.test_utils.TestServer):
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async with aiohttp.test_utils.TestClient(server) as client:
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token = context.attach(
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context.set_value("suppress_instrumentation", True)
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)
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await client.get(TestAioHttpClientInstrumentor.URL)
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context.detach(token)
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def test_suppress_instrumentation_after_creation(self):
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run_with_test_server(
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self.suppressed_request, self.URL, self.default_handler
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)
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self.assert_spans(0)
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def test_suppress_instrumentation_with_server_exception(self):
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# pylint:disable=unused-argument
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async def raising_handler(request):
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raise aiohttp.web.HTTPFound(location=self.URL)
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run_with_test_server(
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self.suppressed_request, self.URL, raising_handler
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)
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self.assert_spans(0)
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def test_url_filter(self):
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def strip_query_params(url: yarl.URL) -> str:
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return str(url.with_query(None))
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AioHttpClientInstrumentor().uninstrument()
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AioHttpClientInstrumentor().instrument(url_filter=strip_query_params)
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url = "/test-path?query=params"
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host, port = run_with_test_server(
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self.get_default_request(url), url, self.default_handler
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)
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span = self.assert_spans(1)
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self.assertEqual(
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"http://{}:{}/test-path".format(host, port),
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span.attributes["http.url"],
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)
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def test_span_name(self):
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def span_name_callback(params: aiohttp.TraceRequestStartParams) -> str:
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return "{} - {}".format(params.method, params.url.path)
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AioHttpClientInstrumentor().uninstrument()
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AioHttpClientInstrumentor().instrument(span_name=span_name_callback)
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url = "/test-path"
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run_with_test_server(
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self.get_default_request(url), url, self.default_handler
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)
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span = self.assert_spans(1)
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self.assertEqual("GET - /test-path", span.name)
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class TestLoadingAioHttpInstrumentor(unittest.TestCase):
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def test_loading_instrumentor(self):
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entry_points = iter_entry_points(
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"opentelemetry_instrumentor", "aiohttp-client"
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)
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instrumentor = next(entry_points).load()()
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self.assertIsInstance(instrumentor, AioHttpClientInstrumentor)
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